Top Class Casting Technology

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www.indutherm.de
Blue Power.
Top Class Casting Technology

Indutherm – your partner for
innovative metal casting solutions
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Metal casting technology is our world. From
the very beginning we have been exclusively
focused on the development and
construction of melting and casting systems
and can offer a wide range of machines for
many different purposes.
Capability based on experience and
research
We generally develop and test our systems in
close collaboration with users in a wide range
of industries.
foundries
jewellery industry
rapid prototyping
automotive and
component industries
aircraft industry
medical and dental
technologies
mould designers
artists
The conflict between the varying requirements
and areas of use has been fundamental to
our expertise. However, numerous machines
have also resulted from research projects that
we frequently carry out in conjunction with
well-known research partners.
All of our clients can take advantage of this
expertise, in the form of advanced technology
and competent consulting and support. We
would be happy to meet up with you sometime
at one of the international casting symposiums
that we frequently participate in and where we
give talks on different casting subjects.
Cost-effectiveness through quality
The perfect result in the least time and for the
least cost
Three factors are critical to cost-effective casting:
• speed and, ideally, no costly testing
for high quality casting results
• casting processes that can be replicated at
any time
• the higher the casting quality, the less postproduction
work there is and the lower the
costs are.
This is why our motto is "Cost-effectiveness
through quality" – and this is reflected in every
detail in the construction of our machines.

This example of extremely filigree casting demonstrates obviously the possibilities of our technology.
Energy efficiency that goes that bit
further
Anyone who relies on high performance values
alone when manufacturing casting machines
is usually thinking too narrowly. What matters
most is what is ultimately accomplished with
each kilowatt hour consumed. The induction
generators and inductors in our casting and
melting machines are designed with the
highest possible level of effectiveness in mind.
Efficient insulation ensures that the induction
generated loses as little energy as possible for
fast melting of the metal. The thermal insulation
around the inductor and crucible effectively
reduces heat radiation; the melting
chamber acts like a Faraday cage to prevent
the radiation of electromagnetic waves.
The infused stainless steel coolant water lines
further improve the shielding effect. With open
melting machines that cannot use the 'cage
effect', the radiation loss is reduced almost as
effectively through the use of ring-shaped
ferrites – and at the same time the electrosmog
load is drastically reduced.
Less energy for cooling
Efficient energy use also reduces energy
consumption for water re-cooling in the
machine and the potential need for air-conditioning
in the foundry. Moreover, a smaller
installed load is sufficient.
Indutherm machines save energy with
peripheral devices too
Thanks to the flask lift you can use flasks with
no flange, offering you two ways to save
money: flangeless flasks are much cheaper
and require less space in your oven. In other
words: with the same energy consumption
you can burn ~50% more flasks – or you can
work with a smaller oven.
The Indutherm
concept for energy
efficient melting
High level of efficiency
for generators and inductors
+
Optimised use
of induction power
+
Effective insulation
against heat radiation
= High melting performance
with reduced power
consumption
flasks with flange
flasks without flange
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Always in focus: the most economical
solution for your demands.
Easy to service:
replacing the generator by opening only
two screws
Durable and reliable
It’s important that your production
equipment runs perfectly for many years from
day one. Our internal quality management
ensures high standards from the first screw
to the last. In the event of revisions, updates
or any kind of problem, we create detailed
documentation for each machine, with
pictures, software backups and more.
Easy to service
Simple replacement of all major components
guarantees fast and easy servicing, minimises
the risk of lengthy production interruptions
and ensures long term reliability. All
INDUTHERM machines with an induction
generator may be equipped with a GSM
modem for remote service. This enables us
to connect us directly to the machine
• for a regular check-up of the machine
• for fast service in the event of malfunctions
• for detailed help and advice with
complicated casting procedures
• for software updates.
Simple replacement of all important components
guarantees fast and easy servicing,
minimises the risk of lengthy production
interruptions and ensures long term
reliability.
Every product is only as good as the
customer service supporting it.
Our sales and service partners provide
professional support around the world. You
can find the dealer for your country on our
website www.indutherm.de, in the
"Company" section.
■ Indutherm distribution
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More than just casting machines
Original Indutherm consumables: Quality
pays off!
Our own high quality consumables, such as
crucibles, dies or sealing rods, are specially
developed for Indutherm machines. Only
using original Indutherm consumables makes
sense for a number of reasons:
1. Compact graphite ensures greater
durability for crucibles and sealing rods
2. Higher quality casting results
• Less contamination from extraneous
material like lead etc
• Less use of graphite in alloys and casts
• Less gas porosity => reduced postproduction
costs, less material loss
3. Less stress for the casting machines
• Our crucibles have lower electrical
resistance, meaning that there is less
stress on the inductor, condenser
assembly, transformer and generator –
resulting in greater durability for these
components
• Less power consumption
4. An extra two years of warranty for free if you
only use original Indutherm consumables.
Casting simulation: know what you’re doing
before you do it!
Professional computer simulation of the
casting process offers you peace of mind
before embarking on complicated casting jobs:
instead of tedious and costly failures, we can
determine all the relevant parameters
beforehand – mould construction, positioning
of sprues, temperature, pressure relationships
– based on your CAD data
The casting process from start to finish from a
single supplier – and perfectly tuned to your
needs
We offer not only perfectly tuned casting
machines, but also competent consultation in
the various moulding, casting and finishing
processes.
Moreover we can support you in planning and
equipping your complete foundry.
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Your project...
aluminium,
copper,
brass, zinc,
gold, silver
casting
• rapid Prototyping
• automotive parts
• aerospace components
• other technical parts
• jewellery
• arts, handicraft, models
steel,
titanium,
platinum,
palladium
casting
• medical and dental technology
• technical parts
• metallurgic R & D
• moulds
• jewellery
melting and
pouring
of different
metals
• for metals developing a lot of
smoke and oxides during
melting
• for large quantities of metal
(recycling or own alloys)
• for casting large,
heavy components
production of
semi-finished
material
• wires and tubes
• strips, sheet and bars
• granules
• micro granules

Our solution...
MC series
for small parts, small
batches and quick casts
8
Vacuum Pressure Casting Machines
MC 60 and VC series
• two chamber differential pressure system (VC series)
• casting into flasks/investment molds, also
suited for shell casting
• up to 12,000 ccm crucible volume
VTC series
for all kind of metals
VC series
for jewellery and other
fine parts
14
18
MC series and VTC series
• vacuum pressure casting systems
• one or two chamber differential pressure systems
• tilting casting principle
• casting into flasks/investment molds or into ingot molds
High Temperature Melting Machines
MU 100 C / MU 200 C, MUV 100 C / MUV200 C and TF 2000 C / TF 4000 C
• for hand pouring into flasks or shell molds (MU / MUV)
• or for tilting pouring into flasks, shell molds or ingot molds (TF)
VC series
for large parts
MU / MUV series
for melting and
handpouring
TF series
for melting and casting
large quantities
24
26
28
Open Melting Machines and Tilting Furnaces,
MU and TF series
• MU/MUV series for hand pouring into flasks or
ingot molds
• TF series for tilting pouring into flasks, shell molds
or ingot molds, up to 12,000 ccm crucible volume
MU / MUV C series
TF C series
for high temperature
melting
recycling and
ingot casting
30
32
Continuous Casting Machines CC series
Granulating Units GU series
Sintering Units SU series
• continuous casting machines also available as VCC versions with
vacuum function for de-gassing of the metal and reduced oxidation
• GU units for the productions of granules or micro granules
• SU units for the productions of multicolour rings
(diffusion bonding)
CC series
for semi-finished
products
granulating
sintering
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36
38

MC 15+ and MC 60 tabletop casting machines
The MC 15+
is designed…
• for the very fast and
uncomplicated
casting of single
models or small trees
in high quality
• for casting of every
metal, even steel
or platinum
1|
The MC 60
is ideal…
• for jewellery casting in
gold or silver
• for technical small series
casting in aluminium,
copper and other metals
2|
3|
The compact MC series was developed to
provide jewellery designers, goldsmiths, development
departments and dental laboratories
with a cheap yet highly professional casting
machine. Our most important aims were:
extremely short processing time from mould
manufacturing to completed casting; simple,
safe operation; high quality and, above all,
reproducible casting results; and low
operating costs. The overwhelming global
success of the MC series in numerous
industries – including some not originally
envisaged – emphatically confirms the MC
concept.
Ingeniously simple = simply ingenious
Handling the mini
casting system is also extremely simple:
1| Fill in the material and heat up.
2| Take the flask from oven and insert into the
machine. The device itself looks after all
additional functions – until we get to the stroke
of genius:
3| Pouring off takes place using a 90° rotation
of the casting unit. After pouring, the MC 15+
automatically switches to overpressure in order
to optimise the mould filling even for delicate
parts.
After pouring, the MC series automatically
switch to overpressure in
order to optimise the mould filling
even for delicate parts.
Alternatively it is also possible to
keep the vacuum (example shows
MC 15+).
With the MC machines, you can easily cast by
hand from the crucible to your mould and
feel what you are doing – just as it has been
done for thousands of years. So that this
works consistently and safely, the entire
melting/casting unit is tilted together
through a 90 degree angle. For perfect
balance and to make do with as few moving
parts as possible, almost the whole machine
moves during tilting: being cylindrical in
design, the whole moving section rotates as
if in a halfpipe – ingeniously simple and
stylishly designed on high-quality rollers.
However, unlike manual casting, the process
takes place in an enclosed chamber under a
vacuum or inert gas atmosphere, to prevent
air pockets and oxidation. You can check the
melting and pouring-off process through the
sight glass.
8

NEW
Why did we not just make one of the tried
and tested machines in the VC range smaller?
There are actually machines on the market in
which the construction principle of larger
machines has been miniaturised, and which
therefore work with a sealing rod system. We
prefer the tilting casting system for the
following reasons:
• Small crucibles with sealing rods are hard to
fill. Generally only granulate or some other
ground material can be poured in; the
sealing rod gets in the way with larger
pieces such as manufacturing residues,
sprue etc.
• Naturally the pouring-off opening is also very
small with small crucibles. This makes viscous
alloys hard to pour out, leading to the formation
of incrustations and consequently leakage.
This makes the service lives of expensive
consumables extremely short. The crucibles in
our MC machines are not only cheaper – they
can also be used for a substantially longer
time. Pouring off into the mould is extremely
simple.
• The number of mechanically moving parts
and seals – so all wearing parts – is substantially
smaller with our tilting principle,
reducing your running costs.
• The viewing glass and open design enable
you to keep an eye on the melting and
casting process and control it perfectly.
MC 15+, the fast all-rounder for any
metal
• For individual pieces or multiple small
jewellery parts
• Minimum material use for the sprue
• Shortest combustion times for the flask
in the oven – approx. 1 hr with a speed
investment material
• With graphite crucible for gold and silver;
ceramic crucible for platinum, palladium,
steel
• Maximum temperature 2,000°C.
MC 60, the larger capacity version for
gold and silver casting
• Largely the same technology as with the
MC 15+, but designed for a temperature
range up to 1,300°C
• Hence larger capacity for gold and silver
casting
• For flasks up to 80 mm x 120 mm,
optionally up to 100 mm x 120 mm.
A significant factor for the
economic efficiency is the low
quantity of metal that must be
calculated for button.
9

MC 20 V and MC 100 V: program controlled
machines featuring vibration technology
These machines are
designed for…
• for difficult casts in the
jewellery and technical
sectors
• for all metals, even steel,
palladium and platinum
MC 20 V and MC 100 V are designed based
on the same tilting principle as the MC
machines described above. However they are
systematically designed for intricate casting
projects in continuous operation in large
foundries.
Vibration technology for excellent
casting quality
The two MC machines with the “V” suffix are
equipped with the Indutherm vibration
system. Vibration switched on directly after
casting is a decisive factor in enhancing
mould filling with very filigree parts. It
prevents porosity, ensures a finer grain structure
and allows greater more constant
density. The post-processing requirement is
much lower. Parts also have measurably
higher elasticity and this increases the scope
for further processing significantly.
Vibration technology is a compelling alternative
to the frequently used and relatively delicate
centrifugal systems, especially when
casting platinum or palladium.
You can find more information on page 18/19.
Full text LCD display for fine adjustment
and serial programming
Temperatures up to 2000°C are precisely
measured by an optical pyrometer.
Place the flask in position
The new operating system features individual
setting of parameters to achieve maximum
performance from every pattern mould and
every alloy. Thanks to the transparent layout
of the menu structure and full text display, all
settings are quick and easy to program. Of
course all process parameters can be saved
for repeated castings.
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tabletop casting
MC 20 V or MC 100 V? It’s only a
question of the required capacity ...
Casting quality, maximum temperature, operation
and equipment levels are in fact identical.
Even the space requirements differ only in
minor points – both machines are designed
as bench-top models. Due to the greater
height we recommend a height-adjustable
bench or a standalone version with a floor
cupboard. The decisive differences are the
capacity of the crucible volume and flask size.
The MC 20 V is suited for up to 100 g Au 18ct
or 200 g Pt, the MC 100 V for up to 200 g Au
18 ct or 500 g Pt. The MC 100 V also offers
very short process times. The larger flasks on
the MC 100 V require a slightly longer firing
time in the furnace.
As always, we offer you competent consulting
to achieve the best solution for you.
Main benefits
• Very simple and safe to operate, short
training periods
• Excellent price-performance ratio
• Induction generator reaches melting
temperature rapidly
• Thorough melt mixing due to low-frequency
induction tuning
• Melting under a vacuum or inert gas
(degassing the melt prevents oxidation)
• Excellent mould filling at pressures up to
3 bar (vacuum casting also available)
• Low material consumption
Pd
Pt
The MC 100 V as standalone
version. The floor base offers
enough space to accommodate
accessories, for example
the vacuum pump.
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The MC series at a glance
A complete casting system covering just a few square feet
1) Vacuum investment machine for bubble-free mixing of the investment compound and
filling of the flask. The integrated vibrator eliminates any possible air bubbles.
2) The 1,100°C furnace for melting out the wax and burning out the form,
temperature pre-selection, high-quality insulation,
furnace interior size: 228 x 165 x 228 (h) mm
3) Sand blasting cabinet for easy removal of plaster:
air pressure requirement: 270 l/min at 10 bar, 150 l/min at 5 bar,
connection for suction system, foot switch for adjusting pressure
performance
power max. / electrical connection
temperature max.
capacity
casting volume
for use of flasks
handling+control
control panel
automatic vacuum function
automatic overpressure function
casting also under vacuum only
vacuum or overpressure after casting
function washing by inert gas
vibration system
supply: cooling water,
inert gas argon or nitrogen
temperature measurement/control
quality management
RS 232 interface, diagnostic system
GSM-modem for remote service
accessories
vacuum investment mixer Indumix 2
furnace, 1,100°C
sand blasting cabinet
vacuum pump
floor unit
12

MC 15+
MC 60
MC 20 V
MC 100 V
3.5 kW 230 V single phase
2000° C
3.5 kW 230 V single phase
1300° C
3.5 kW 230 V single phase
2000° C
8 kW 3x400 V
2000° C
100 g Au 18 ct 450 g Au 18 ct 100 g Au 18 ct 450 g Au 18 ct
110 g steel/200 g Pt 300 g Ag 935 110 g steel/200 g Pt 250 g steel 500 g Pt
up to ø 30/50/65/80 mm x 80 mm h ø 100 mm x 120 mm h up to ø 30/50/65/80 mm x 80 mm h up to ø 80/100 mm x 120 mm h
digital display digital display by LCD-Display, full text readout by LCD-Display, full text readout
■ ■ ■ ■
■ ■ ■ ■
– – ■ ■
■ –1 up to +2 bar ■ –1 up to +2 bar ■ –1 up to +3 bar ■ –1 up to +3 bar
■ ■ ■ ■
– – ■ ■
■ ■ ■ ■
■ up to 1,300°C o up to 1,600°C ■ up to 1,300°C ■ up to 2,000°C ■ up to 2,000°C
■ ■ ■ ■
■ ■ ■ ■
o o o o
o o o o
o o o o
o (min. 8m 3 /h) o (min. 8m 3 /h) o (min. 8m 3 /h) o (min. 21 m 3 /h)
– – – o
■ = standard equipment
o = optional
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The VTC series:
for every metal or alloy you want to cast.
The VTC machines
are ideal for:
• casting steel, platinum,
palladium as well as
all other jewellery and
industrial alloys
1)
The VTC Ti machines
are ideal for:
• casting titanium, cobalt
chrome, beryllium copper
and other highly reactive
metals
2)
3)
VTC vacuum/pressure casting
machines
Casting trees in steel and in gold
The VTC 100 V – VTC 800 V are extremely
versatile casting machines suitable for a wide
range of applications – and a number of
options that were considered mutually
incompatible up to now. Thus, while the VTC
series was originally designed as a hightemperature
casting machine for casting
steel, palladium, platinum etc. (max. 2,100°C),
large flasks also make it suitable for economically
producing castings in gold, silver,
copper, aluminium and other materials.
The machine combines a dual-chamber differential
pressure system with a tilting mechanism.
The casting process is achieved by
rotating the entire melting-casting unit by
90°. One benefit of the tilting system is the
use of economically priced graphite or
ceramic crucibles instead of crucibles with
holes and sealing rods; these tend to have a
longer service life. Some alloys, such as
copper beryllium, quickly cause crucibles with
holes and sealing rods to become untight
and therefore useless, and for this reason,
many users have so far processed such alloys
only in open systems – which means they
can't choose to optimise the process with
overpressure or vacuum. With the VTC series,
these handicaps no longer apply.
1) The new control system with LCD-Display
2) The casting process is achieved by rotating the
entire melting-casting unit by 90°.
3) Flask size Ø125 mm x 220 mm
A vacuum can be produced in the melting
chamber and the casting chamber to avoid
oxidation processes during melting and air
pockets in the casting mould. The flask is
automatically pressed against the melting
chamber for casting, making it possible to
switch to overpressure during casting for
better mould filling; in addition, the vibration
technology optimises the process even
further. As well as casting with flasks, casting
into ingot moulds is also possible.
New sweep mode vibration system
for perfect results even in Pt and Pd
Due to the advanced vibration technology
and the sophisticated vacuum/pressure
system, this machine is perfectly suited to
casting platinum and palladium – and all with -
out the elaborate and sensitive centrifugal
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Sweep Mode
Vibration
Technology
mechanism usually required for platinum
casting machines. The VTC machines are
equipped with the advanced sweep mode
vibration system. It considers that each
casting tree and even each item of a tree has
a different resonance frequency, depending
on its shape and size. Generating variable
frequencies the sweep mode vibration
ensures that the optimum frequency is
covered. Read more about the vibration
advantages on page 18/19.
New generator system controlled via
LCD display
A completely new generation of generator and
control systems is present in the VTC series.
Operation is simple and safe thanks to a
clearly arranged and easy-to-use LCD display.
All parameters, right down to the variable
tilting speed, can be individually set and
saved to ensure that recurring castings always
produce consistent results.
The high vacuum casting systems
VTC 100 V Ti - VTC 800 V Ti
Highly reactive metals such as titanium pose
particular challenges when casting. The atmospheric
conditions in a 'normal' vacuum pressure
casting machine are completely inadequate for
melting and casting titanium, and the crucibles
and moulds need to be made of specific materials.
Hence until now the only way to cast
titanium was to use extremely expensive
specialised machines. As part of a joint AiF
ZIM research project, Indutherm has collaborated
with the FEM institute in Schwaebisch
Gmund under the sponsorship of the Federal
Ministry for Economics and Technology to develop
a cost-effective solution for casting
highly reactive metals. The ideal structural
basis proved to be the VTC 200 V tilting casting
machine. Following numerous modifications,
such as completely reconstructed valves and
hose connections, special seals and an
evacuation and inert gas flushing process
tailored to the machine, the prerequisites for
the required vacuum of 10 –3 mbar were met.
Furthermore, special crucibles and inductors
were developed for the Ti versions, as the ceramic
crucibles that are normally used also react
with titanium. They also reduce melting times
– and the shorter the melting time, the less
time there is for a possible reaction.
The VTC V Ti machines are not only suitable
for casting titanium – they can also be used
for any highly reactive metal or alloy, such as
copper beryllium, amorphous steel etc.
Every model in the VTC range from the VTC
100 V to the VTC 800 V is available in a
Ti version.
Graphite crucible and ceramic crucible
15

The VTC series
Vacuum Pressure Casting Machines
performance
power max. / electrical connection
temperature max.
VTC 100 V / Ti
12 kW 3x400 V
2100° C
VTC 200 V / Ti
15 kW 3x400 V
2100° C
capacity
volume graphite crucible 25 ccm = 450 gr Au 18 ct 145 ccm = 2.0 kg Au 18 ct
volume ceramic crucible 30 ccm = 600 gr Pt / 250 gr steel 180 ccm = 2.5 kg Pt / 1 kg steel
for use of flasks up to ø 125 mm / 220 mm h ø 125 mm / 220 mm h
handling+control
vibration technology ■ sweep mode ■ sweep mode
automatic tilting with motor drive ■ ■
automatic flask fixing ■ ■
casting programs 100 100
temperature measurement thermocouple up to 1,300°C thermocouple up to 1,300°C
optical pyrometer up to 2,000°C
optical pyrometer up to 2,000°C
quality management
RS 232, diagnostic system ■ ■
data printer ■ ■
GSM-modem for remote service ■ ■
accessories
pyrometer with video output o o
■ = standard equipment
o = optional
16

performance
power max. / electrical connection
temperature max.
VTC 400 V / Ti
20 kW 3x400 V
2100° C
VTC 800 V / Ti
20 kW 3x400 V
2100° C
capacity
volume graphite crucible 300 ccm = 4.0 kg Au 18 ct –
volume ceramic crucible 300 ccm = 2.0 kg steel 600 ccm = 4.0 kg steel
for use of flasks up to ø 125 mm / 220 mm h ø 125 mm / 220 mm h
handling+control
vibration technology ■ sweep mode ■ sweep mode
automatic tilting with motor drive ■ ■
automatic flask fixing ■ ■
casting programs 100 100
temperature measurement thermocouple up to 1,300°C thermocouple up to 1,300°C
optical pyrometer up to 2,000°C
optical pyrometer up to 2,000°C
quality management
RS 232, diagnostic system ■ ■
data printer ■ ■
GSM-modem for remote service ■ ■
accessories
pyrometer with video output o o
■ = standard equipment
o = optional
17

The VC series
Vacuum Pressure Casting Machines
A thoroughly thought-through concept
with the finest details...
...forms the basis of the technological advances
made in our VC machines guaranteeing opti -
mal casting results whatever class of machine
you opt for.
A few examples of the additional features
offered by Indutherm machines:
Automatic vacuum in the melting and
flask chambers…
…provides the de-gasing of the alloy and
avoids undesired oxidation during melting (a
low oxygen content is particulary important
when casting silver or red gold). Vacuum in
the flask chamber during casting improves
the form filling when casting filigree parts
and avoids air inclusions.
Melting by induction technology:
The crucible with the material is located
in the core of the induction coil. By generating
a strong alternating magnetic
field, the result is a strong alternating
current in the graphite crucible and in
the metal. This leads to fast heating up
and thorough mixing of the material.
Vacuum Casting
The special “oxidation-reduced
casting“ system...
…eliminates the danger of oxidation while the
flask is cooling down.
The Turbo Pressure function…
…optimises the casting of very small and
filigree objects. For the production of
jewellery it guarantees perfect results when
casting with stones. Turbo Pressure allows a
precisely defined pressure to be achieved
rapidly. For all program-controlled VC models,
depending on the selected program the Turbo
Pressure will start automatically exactly at the
required time.
18

Highest levels of safety for certified
production
The digital or program control of our machines
and the integrated data printer (standard
equipment for VC 650 V, VC 1000 V, VC 3000 V)
ensure a high level of safety and the possibi -
lity of precise process documentation (important
for ISO certified casting processes).
Until recently flasks with incorrect or different
temperatures were a safety risk. During
casting of very small or delicate parts the
temperature of the flask is of utmost
importance. The measurement of the flask
temperature (standard for machines from
VC 500 D onwards) is an important feature
with regards to safety. The temperature of the
flask can be monitored to within one degree.
Overlapping casting
All Indutherm machines have separate lock
systems for the melting chamber and flask
chamber. This allows time to be saved by
"overlapping" casting: while the flask remains
in the flask chamber for several minutes after
the casting, you may fill in and heat up the
next charge.
Vibration System
• Vibration during casting generally
improves material flow and mould
filling.
• Castings exhibit a higher and more
consistent density
• Porosity is substantially reduced.
• Risk of hot cracks is reduced.
• 50% smaller grain size
• Castings have greater stress and elasticity
properties, making them easier to process
further.
In practice this means: higher and more
consistent quality, less waste, less postprocessing,
better deformability.
A customer in USA has discovered that by
using Indutherm vibration technology the
total production time including postprocessing
has been reduced by 25%
(compared with the older VC 600).
▲ porosity
without
vibration
Rm
with V
Rm
without V
Rp 0,2
with V
Rp 0,2
without V
▲ porosity with vibration
grain structure
grain structure
without vibration with vibration
*Au 18 ct: 750 Au,128 Ag, 122 Cu
elongation limit ~12% better
tensile strength ~25% better
tensile
strength
N/mm 2
0,2%
discharge
elongation
= with vibration
= without vibration
19

The semi-automatic VC versions
These machines are
designed for:
• casting of jewellery and
other filigree parts
• VC 200 - 400:
for smaller charges
• VC 500: a semi-automatic
machine for frequent
operations.
Resistor heated casting machines
VC 200 / VC 300
The resistor-heated vacuum casting machine
VC 200 and the vacuum pressure casting
machine VC 300 are very low priced casting
machines for smaller productions.
Nevertheless these machines offer a convincing
casting quality. Both machines reach a
maximum temperature of 1,200°C.
Stone-in-place castings possible with all
VC-series machines
Induction heated casting machines
VC 400
The ideal machine for smaller companies
producing moderate quantities but needing
considerably more capacity than that offered
by the MC machines. Often, experienced
casters are not particularly interested in automated
functions or program control, and they
can achieve the same quality with the VC 400
machine as with more advanced ones. Its
induction generator guarantees fast heat-up
and thorough mixing of the molten metal by
inductive bath movement.
VC 500
For larger production quantities with
continuous casting operation, greater performance
(shorter casting times) with even
larger crucibles and flask capacities (flasks up
to 160 mm ø/400 mm H) is important. The
high maximum temperature of 1,600°C
extends the possible range of alloys. Temperature
measurements in both the crucible and
the flask mean the best possible repeat
accuracy in the process. If alloys are changed
frequently, 20 different temperature programs
simplify working procedures.
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
for use of flasks up to
optional up to
handling+control
dual temperature control
flask temperature measurement
flask and chamber lift
temperature programs
turbo pressure function
quality management
RS 232, diagnostic system
GSM modem for remote service
accessories
sintering kit (for diffusion bonding)
granulation tank
other versions
also available as granulating unit
20

with an optional
granulating tank
VC 200/300
VC 300
VC 400
VC 500
2 kW 230 V
1200° C
3.5 kW 230 V or 4.5 kW 3x400 V
1400° C
10 kW 3x400 V / 3x208 V
1600° C
■ 245 ccm = 3.6 kg Au 18 ct* ■ 170 ccm = 2.5 kg Au 18 ct* ■ 245 ccm = 3.6 kg Au 18 ct*
o 386 ccm = 5.8 kg Au 18 ct*
ø 130 mm / 260 mm h ø 130 mm / 260 mm h ø 130 mm / 260 mm h
ø 160 mm / 400 mm h
– o o
– – ■
o o ■
– 20 temperature programs 20 temperature programs
– ■ ■
■ ■ ■
– o o
o o o
– o o
– – GU 500
*Liquid metal up to top level of the crucible
■ = standard equipment o = optional
21

The fully automatic VC machines
These machines are
designed…
• for casting of jewellery and
other filigree parts
• for permanent use
• for certified production
processes
• VC 650 V: for highest
demands in quality and
continuity
VC 450
The VC 450 is equipped with a program
control system with full text read out LCD
display.
With help of the step-by-step display information
and many automatic functions, the
machine is very easy to handle, even for less
experienced users. The program control for
20 different casting cycles allow reproducible
and consistent casting results.
VC 480 V
The construction of the new VC 480 V is
based on the VC 450 and offers the same melting
capacity. However, in addition to the
technical equipment of the VC 450, the VC
480 V comes with 8 kW generator power, an
advanced program control with 100 casting
programs, variable vacuum in the flask chamber
and – the most important add-on – the
INDUTHERM vibration system.
VC 650 V
The absolute “State of the art“-machine:
the VC 650 V garantees highest efficiency –
through maximum speed and quality.
New program control system
Thanks to a new control panel with full text
LCD display, all programs and parameters are
very easy and convenient to set. 100 casting
programs guarantee fast operation and con -
sistent casting results. Parameters are preprogrammed
for all major alloys, e.g. for
AGS, Alpha Plus, Heraeus, Legor and
Pandora alloys. In practice this mean: from
the first flask, you can expect good casting
results without carrying out expensive pretests.
Turbulence reduction software
New system for faster and more laminar
metal flow.
Turbo Pressure PLUS
Filling of the flask using fast overpressure
allows casting of very filigree parts and
casting with stones. Now with reduced gas
consumption and with an even faster
pressure degree.
Sweep Mode
The new sweep mode vibration system can
do even more: it considers that each casting
tree and even each item of a tree has a different
resonance frequency, depending on its
shape and size. The sweep mode vibration
generating variable frequencies covers all
natural resonances.
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
for use of flasks up to
optional up to
handling+control
vibration technology
pneumatic bell lock
maximum pressure
programs
program control
dual temperature control
flask temperature measurement
automatic flask and chamber lift
variable vacuum in flask chamber
turbo pressure PLUS system
turbulence reduction software
quality management
RS 232, diagnostic system
data printer
GSM modem for remote service
accessories
sintering kit (for diffusion bonding)
granulation tank
22

Vibration
Technology
Sweep Mode
Vibration
Technology
VC 450
VC 480 V
VC 650 V
4.5 kW 3x400 V
1400° C
8 kW 3x400 V
1600° C
12 kW 3x400 V
1700° C
■ 170 ccm = 2.5 kg Au 18 ct* ■ 170 ccm = 2.5 kg Au 18 ct* ■ 245 ccm = 3.6 kg Au 18 ct*
o 386 ccm = 5.8 kg Au 18 ct*
ø 130 mm / 260 mm h ø 130 mm / 260 mm h ø 130 mm / 260 mm h
ø 160 mm / 400 mm h
– ■ ■ in sweep mode
■ ■ ■
1.5 bar 1.5 bar 3 bar
20 100 100
by LCD-display, full text readout by LCD-display, full text readout by LCD-display, full text readout
o o ■
– – ■
■ ■ ■
– ■ ■
– ■ ■
■ ■ ■
■ ■ ■
o o ■
o o ■
o o o
o o o
*Liquid metal up to top level of the crucible ■ = standard equipment o = optional
23

The Vacuum Pressure Casting Machines
for large casting parts
These machines are
designed for:
• the automotive and
component industries
• rapid prototyping
• orthopaedic and
medicine technologies
• machinery construction
• toolmaking
• sculptures
Capacity and power for large scale projects
Our large vacuum pressure casting machines are mostly
used for precise castings in aluminium alloys. They are
always the first choice for parts with complicated geometry
or when the number of pieces is not large enough for diecast
production. VC 1000, 3000 and 12000 offer the best
pre-conditions for high quality castings in aluminium: the
hydrogen content of aluminium alloys may be adjusted by
regulating the vacuum during melting. This way, foaming of
molten metal can be avoided without any melt additives.
Overpressure in the melting chamber during and after
casting and simultaneous vacuum in the flask chamber optimise
form filling especially in filigree or thin-walled areas.
The V-versions with vibration
All our large VC machines are now equipped with a new
program control system. The casting process is controlled
via LCD full text display. Complete casting cycles may be
stored for repeatable castings. Each machine is available in
two versions:
The standard versions offer 20 casting programs, the V-
versions have 100 programs and as the most important
innovation, they use the vibration technology for improved
form filling.
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
for use of flasks up to
optional up to
handling+control
20 temperature programs
program control (100 programs)
automatic flask and chamber lift
dual temperature control
flask temperature measurement
quality management
RS 232, diagnostic system
data printer
GSM modem for remote service
accessories
granulating tank
magnesium kit
Magnesium casting versions
24
The magnesium casting versions are constructed according
to strict safety requirements and guarantee safe and easy
casting of magnesium – and of course of every other metal,
too.

VC 1 000
VC 1 000 V
VC 3 000
VC 3 000 V
VC 12 000
VC 12 000 V
picture: VC 1000 with feeding system
and window door
picture: VC 3000 V
with large flask chamber
picture: VC 12 000
25 kW 3x400 V
1500° C
30 kW 3x400 V
1500° C
40 kW 3x400 V
1200° C
■ 1,500 ccm = 4 kg Al ■ 3,400 ccm = 9 kg Al ■ 12,000 ccm = 30 kg Al
ø 250 mm / 500 mm h ø 450 mm / 600 mm h ø 600 mm / 800 mm h
– ø 300 mm / 600 mm h –
■ ■ ■
■ VC 1000 V ■ VC 3000 V ■ VC 12 000 V
■ VC 1000 V ■ VC 3000 V –
■ ■ ■
■ ■ ■
■ ■ ■
■ ■ ■
o o o
o o o
o o o
*Liquid metal up to top level of the crucible
■ = standard equipment o = optional
25

Machines for melting and handpouring
These machines
are designed…
• for all melting processes
with an extensive
generation of smoke and
oxides, which should be
absorbed
• for melting down scrap and
cuttings or large parts like
stamping residues
Some metals develop a lot of
smoke and oxides during melting.
It is better to melt them in open
systems, with use of an air
absorber.
No limitation in
the material size.
With the MU series we offer melting machines for hand pouring
for many different needs and with crucible capacities from 155 ccm
up to 1,200 ccm. The material is molten in open crucibles and
poured by hand into the mould.
Melting Units MU Series
Flexible melting furnaces designed to melt gold and silver alloys
and as well as aluminium, bronze, brass.
Due to the strong induction generator (15 kW) and the low
induction frequency the stirring effect of the metal is excellent.
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
The MU as vacuum casting machine:
MUV Series
The V-versions include one or two additional extra large capacity
vacuum chambers. Evacuating the flask immediately after
pouring improves the form filling, reduces porosity and avoids
oxidation of the hot metal.
perforated flasks with/without flange
handling+control
temp. measurement by thermocouple
temperature control
temperature programs
Ideal for melting large
parts: no sealing rod construction
reduces the available
space.
quality management
interface RS 232, diagnostic system
GSM modem for remote control
26

MU 700
MUV 700
MU series
MUV series
MU 200 MU 400-1200 MUV 200 MUV 400-1200
3.5 kW 230 V or 6.0 kW 3x400 V
1300° C or 1500° C
10-15 kW 3x400 V
1500° C
3.5 kW 230 V or 6.0 kW 3x400 V
1300° C or 1500° C
10-15 kW 3x400 V
1500° C
MU 400: 10 kW
MUV 400: 10 kW
MU 700: 12 kW
MUV 700: 12 kW
MU 900: 15 kW
MUV 900: 15 kW
MU 1200: 15 kW
MUV 1200: 15 kW
155 ccm = 2.3 kg Au 18 ct ❁ 155 ccm = 2.3 kg Au 18 ct ❁
MU 400: 400 ccm = 6 kg Au 18 ct ❁
MU 700: 700 ccm = 9 kg Au 18 ct ❁
MU 900: 900 ccm = 13 kg Au 18 ct ❁
MU 1200: 1,200 ccm = 18 kg Au 18 ct ❁
MUV 400: 400 ccm = 6 kg Au 18 ct ❁
MUV 700: 700 ccm = 9 kg Au 18 ct ❁
MUV 900: 900 ccm = 13 kg Au 18 ct ❁
MUV 1200: 1,200 ccm = 18 kg Au 18 ct ❁
– ■ up to ø160 mm/400 mm h
■
■
■
20 20
■
■
o
■
o
❁
real capacity for casting
■ = standard equipment
o = optional
27

Tilting Furnaces for melting and casting
large quantities into ingots or shell moulds
These machines
are designed…
• for melting large quantities,
for example in the recycling
sector
• for casting large parts into
shellcasting moulds
TF 1200 - TF 4000 – tried and tested
in foundries and precious metal
merchants across the world:
Our tilting furnaces are mainly used in two
areas:
1. for melting down large quantities of metal
such as antique gold or manufacturing
residues like casting waste, scrap or swarf.
15 - 60 kW output and low-frequency tuning
means fast melting – even for large
volumes – and excellent through-mixing.
2. for casting large, heavy components
e.g. according to the shell casting principle
For pouring off, the inductor/crucible unit is
tilted forwards, either using a pivot lever or
wheel, optionally with
reduction. The wheel is
recommended out of
preference for safety
reasons, as the operator
must move away from
the splash zone when
pouring off.
The TF 6000 and TF 12000
are tilted using a joystick.
TF 6 000 and TF 12 000 – the giants
among tilting furnaces
The large crucible volumes of 6,000 respectively
12,000 ccm gives these machines an
enormous capacity.
The generator is fitted with a 32-bit micro controller
and is controlled via a console with an
LCD display with full text readout.
100 programs enable set process parameters
to be stored. Efficient thermal insulation and
electromagentic shielding ensure a high level
of effectiveness. Comparison tests carried
out by a customer recently proved that the
TF 12000 has a higher level of productivity
than a competitor model with twice the
performance and correspondingly twice the
energy costs.
Because of the potentially
large weight, the inductor/
crucible unit is no longer
tilted manually – it uses a
motor drive with a stable
shaft. Use of a joystick
enables the tilting process
to be controlled easily and
sensitively, as with a pivot
lever or wheel.
28

TF 4000
TF 12000
TF series
TF 1200 / 2000 / 4000 TF 6000 / 12 000
performance
power max. / electrical connection
maximum temperature
15-30 kW 3x400 V
1500° C
TF 1200: 15 kW
TF 2000: 25 kW
TF 4000: 30 kW
40-60 kW 3x400 V
1500° C
TF 6000: 40 kW
TF 12000: 60 kW
temperature measurement thermocouple ■ ■
capacity
crucible volume TF 1200:1,200 ccm =18 kg Au 18 ct ❁ TF 6000: 6,000 ccm = 90 kg Au 18 ct ❁
TF 2000: 2,000 ccm = 30 kg Au 18 ct ❁
TF 4000: 4,000 ccm = 60 kg Au 18 ct ❁
TF 12000: 12,000 ccm = 180 kg Au 18 ct ❁
handling+control
tilting by lever ■ –
tilting by wheel o –
reduction for wheel o –
tilting with motordrive (remote control) – ■
temperature control ■ by display ■ by LCD-Display, full text display
temperature programs 16 100
quality management
interface RS 232, diagnostic system ■ ■
GSM modem for remote service o ■
❁
real capacity for casting
■ = standard equipment
o = optional
29

High temperature melting machines for steel,
platinum, palladium, chrome-cobalt…
These machines are ideal for…
• MU 100 C: melting small
quantities of steel and other
metals with a high melting
point
• MU 200 C: for larger
quantities, also for pouring
into flasks
• TF 2000 C/4000 C: melting
large quantities and casting
of voluminous steel parts
We offer melting machines with three
different capacities for melting metals with a
high melting point, such as steel, palladium,
platinum, chrome-cobalt etc.
Common to all is the generator, specially
designed for the most thorough throughmixing
of molten metals. The ceramic
crucibles are specially designed for our hightemperature
casting machines and are
extremely heat-resistant, ensuring the least
possible amount of energy loss and a lower
internal temperature in the melting chamber.
The melting machines MU 100 C and
MU 200 C
The MU 100 C is principally used for analysis
purposes, whereas the MU 200 C has sufficient
crucible capacity to generate custom alloys
for example, or use them on a regular
basis for melting down product residues from
platinum or palladium processing. For use as
a casting machine we recommend the MUV
versions with one or two vacuum containers
High temperature tilting furnaces
TF 2000 C/TF 4000 C
These melting furnaces have been specially
designed to melt large quantities of steel or
other metals with a high melting point. The
strong induction generator and low induction
frequency means very good mixing of the
metal can be achieved.
The main areas of applications are:
• casting voluminous parts such as
sculptures (also sand casting)
• purification melting of waste
• casting of ingots
• casting of solid rollers
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
for use of flasks up to
handling+control
tilting with motor drive (remote control)
temperature programs
temperature measurement by pyrometer
LCD-Display
quality management
RS 232, diagnostic system
GSM modem for remote service
30

MU 100 C / MU 200 C
MUV 100 C / MU 200 C
TF 2000 C / TF 4000 C
MU 100 C
MUV 100 C
MU 200 C
MUV 200 C TF 2000 C TF 4000 C
8 kW 3x400 V
2000° C
15 kW 3x400 V
2000° C
40 kW 3x400 V
1700° C
60 kW 3x400 V
1700° C
50 ccm = 1 kg Pt ❁ 155 ccm = 2.5 kg Pt ❁ 2,000 ccm = 5-14 kg steel ❁ 4,000 ccm = 8-30 kg steel ❁
o up to ø160 mm/400 mm h (MUV 100 C/MUV 200 C) –
– ■
– 20
– o
– ■
■
o
■
o
Tip casting under vacuum/overpressure:
MC 15+ (see page 8), MC 20 V and MC 100 V (see page10)
or the VTC series (see page 14)
❁
real capacity for casting
■ = standard equipment
o = optional
31

Special solutions for recycling and analysis
and for ingot casting
These machines
are designed for:
• old gold, remains from
production, dental gold
• remains from galvanic
processes, such as gold,
palladium or platinum
sponges, electrolytic silver
• dental waste
• electronic waste, thermosensors,
contacts etc.
• remains from anodes
Indutherm systems used in the recycling process
old gold
dental gold
remains from
production and
recycling
ingots
granules
melting down melting down
flakes
Refining
TF MU GU
Subsequent processing of the pure precious metals as new alloys into…
GU CC VC 400 B/P TF / MU
…granulate
…semi-finished material
(sheets and stripes,
wires and tubes)
…ingots or pellets
with defined
quantities
…ingots
32

TF 4000
Ingot Casting Machine
VC 400
Pellet Casting Machine
VC 400 B
Bar Casting Machine
The demands on casting and smelting plants differ considerably in
the field of analysis and recycling. Sometimes only a few grams have
to be molten for sampling, sometimes large quantities have to be
molten. Often a certain shape or size is required, such as ingots or
pellets.
Moreover, the metals and alloys themselves require different handling:
alloys containing copper, for example, should be molten in a
vacuum or inert gas atmosphere as they tend towards strong oxide
formation. For other metals or alloys, in turn, open plants are recommended
as fumes have to be drawn off, for example.
The overview shown on the left page is intended to give you an insight
into the versatile possibilities of our program. The ideal solution
for your application is best determined by discussion or by trial
casts. Just ask us!
TF 4 000 Ingot Casting Machine
The ingot moulds are located in a movable slide which locks into
place precisely at the casting point, thus ensuring safe filling of
the individual moulds.
VC 400 Pellet Casting Machine
This machine has been developed for casting alloys or production
leftovers into pellets with a pre-defined weight or size.
A hydraulic ejector allows the pellets to be collected easily.
The machine is based on the VC 400 model.
VC 400 B Bar Casting Machine
This machine is especially suitable for melting and casting defined
quantities of metal such as one kilogram ingots. During the melting
process, the crucible chamber is flooded with inert gas.
At a glance: all our
machines for metal
recycling
temperature max.
capacity
mostly used for
vacuum/inert gas
page
VTC V series
2,000°C
25 - 600 ccm
ingots
■
14
MU/TF series
1,400° - 2,000° C
50 - 12,000 ccm
ingots
–
26-31
VC 400 Pellet Casting
1,400°C
170 ccm
pellets
■
see above
VC 400 B
1,300°C
170 ccm
ingots
■
see above
33

The Continuous Casting Machines – the only
ones with vacuum and/or quattro drive
These machines
are designed…
• for fast and flexible
production of semifinished
material
• for use in every
metalworking
industry
• as multiple use
instruments
especially for the
production of rings
34
More flexibility, lower costs
Indutherm continuous casting machines help
you to save production costs.
With only one machine, you can produce your
own alloys or semi-finished products in different
shapes and sizes in the shortest time, for
example:
• wires or bars in every diameter you need, up
to ø 40 mm (CC 3000)
• sheets and strips, e.g. ring production, for
stamping and pressing
• tubes, perfect as basic material for cutting in
sections for wedding ring production
• granulates
As the desired moulds and alloys can be
produced within minutes, you can reduce your
investment for material in storage. Your
processes will get faster, more flexible and more
efficient.
The main advantages of the Indutherm
CC-machines:
• short change-over times for various casting
sizes
• a lot of additional equipment available
• e.g. diffusion bonding set (“sintering”) and
granulation tank
• induction generators with low frequency
tuning for thorough mixing of the metal
• automated inert gas
• high metal quality, free of porosity
Optional quattro drive
The optional
drawing unit with
four instead of two
motor driven feed
rolls produce very
smooth tubes and
sheeting without
the otherwise
unavoidable marks
of transportation
(for CC 1000 and CC 3000).
All CC-machines also available as VCCversions
with vacuum function (pat. pend.)
With the VCC-machines, melting can take place
under a vacuum or inert gas. This is ideal for
alloys containing copper such as red gold or for
silver as these materials tend to oxidise easily.
Degasification under a vacuum results in a
substantially improved – because of the absence
of oxidation – semi-finished product.
performance
power max. / electrical connection
maximum temperature
capacity
crucible volume
wire production up to
tube production up to
sheet production
handling+control
16 programs for melting and die temp.,
drawing lengths, stoptime, reverse draw
inert gas overpressure
vacuum
neutral inert gas atmosphere
quality management
RS 232, diagnostic system
data printer
GSM modem for remote service
accessories
Quattro-drawing unit
sintering kit
granulation tank
bending-unit
simultaneous casting of several wires
coiling equipment

picture: VCC 400
CC 400
VCC 400
picture: VCC 1000
with optional
Quattro Drive
CC 1000
VCC 1000
picture: CC 3000
with optional
Quattro Drive
CC 3 000
VCC 3 000
15 kW 3x400 V / 3x208 V
1500° C
25 kW 3x400 V
1500° C
30 kW 3x400 V
1500° C
■ 285 ccm = 4.2kg Au 18 ct* ■ 1,500 ccm = 22 kg Au 18 ct* ■ 3,400 ccm = 51 kg Au 18 ct*
o 400 ccm = 6.0 kg Au 18 ct*
■ ø 15 mm ■ ø 30 mm ■ ø 40 mm**
■ ø 30 mm ■ ø 40 mm ■ ø 50 mm**
■ 50 x 8 mm ■ 100 x 10 mm ■ 130 x 12 mm
o 60 x 8 mm
■ ■ ■
– CC 400/■ VCC 400 – CC 1000/■ VCC 1000 – CC 3000/■ VCC 3000
– CC 400/■ VCC 400 – CC 1000/■ VCC 1000 – CC 3000/■ VCC 3000
■ ■ ■
■ ■ ■
■ ■ ■
o o o
– o o
o – –
o o o
o o o
– o 3 wires*** o 5 wires***
– o o
*Liquid metal up to top level of the crucible
■ = standard equipment o = optional
** Standard sizes – special dimensions on demand such as tube Ø 85 mm,
5 mm wall thickness or strips 65 x 40 mm, profiles for watch cases etc.
*** not in combination
with Quattro Drive 35

Solutions for Granulating
For the production of granules we can offer you three different systems.
• For frequent or permanent production of granules our GU series granulating machines will be
the first choice.
• If you only want to produce granules occasionally, the addition of a vacuum pressure or a
continuous casting machine with a granulating tank is a good alternative.
• For the production of micro granules we recommend our GU 500 micro.
The Granulating Machines GU 500, GU 1000, GU 3000 and GU 12 000
These machines are developed especially for granulating bullions, sheet metal or
casting residues into proper grains. The granulation tanks are very easy to remove
for clearing.
The GU machines are available with crucible sizes from 245 ccm up to 12,000 ccm.
The major applications are
• Preparation of alloys out of gold and master alloy
• Preparation of alloy components
• Preparation of alloys from components
• Cleaning up of already casted metal
… each under inert gas atmosphere or under a vacuum
GU 500
GU 1000
GU 3000
GU 12 000
crucible volume in ccm 245-386 1,500 3,400 12,000
volume in kg Au 18ct 3.6-5.7 22.0 51.0 180.0
generator kw (400 V) 10 25 30 40
GU 12 000
36

The Micro Shot Systems GU 500 micro,
GU 1000 micro and GU 3000 micro
The GU micro series was developed for the
production of micro granules with a grain size of
between 0.1 and 1 mm. The systems are based on
the Indutherm granulation units as shown on the
left but all key components, particularly the jet
system, are special developments. The main areas
of application for the micro-granules are in metal
laser sintering processes, in jewellery surface
design and in soldering technology.
Pull-out handle for easy removal
of the tank insert.
GU 500 micro
Pour off the residual water…
The Granulating Tank for casting machines in
the VC and CC series
The optional equipment of a vacuum pressure or a
continuous casting machine with a granulating tank
is a suitable solution for occasional granulating. Granulating
tanks are available for all machines in the
VC series from VC 400 up to the VC 12000 and
for all CC machines.
…and then pour off the granules.
The main advantages of the new generation of
granulating tanks:
• Easy installation of the granulating tank
• Fast changing between casting process and granulating
• Ergonomically and perfectly balanced design for
safe and easy handling
• Optimised streaming behaviour of the cooling water
• Reliable separation of water and granules
CC 3000 with
optional granulation
tank
Granulation tanks in different sizes:
left: GU 500, option for VC 400 - VC 650 V and CC 400
middle: GU 1000, option for VC 1000 and CC 1000
right: GU 3000, option for VC 3000 and CC 3000
37

An effective solution for wedding ring production
These machines are
designed…
• for the production of
multi-colour rings
in accordance with the
diffusion bonding process
• for solid bonding
of every kind of metal
38
Sintering is the optimum process for producing
multi-coloured rings, mostly sold as
wedding rings. Metals are processed under
pressure and at temperatures below the solidification
point. The pressure is generated
pneumatically and not mechanically via a
threaded spindle. This means that there is no
risk of graphite parts breaking as a result of
heat expansion. The fusion between layers
has the same durability as the metal itself.
Pre-manufactured rings can be easily resized
(7 sizes and more).
Benefits of the Indutherm sintering
process:
• With the sintering unit processes can take
place under a vacuum, which is important
for alloys with a manganese component
• Processes can take place under inert gas
• Straightforward installation/removal of the
rings
• Approximate duration of process: 5 minutes
• Depending on the thickness of the rings, up
to 6 rings can be processed simultaneously
Indutherm offers different methods of
sintering:
The special sintering machines (SU series) or
the sintering kit for installation into existing
casting or continuous casting machines.
Sintering Machine SU 300
With the SU 300, the temperature and
pressure are controlled manually. Exceptional
results can be produced using this machine
after just a brief introductory period.
Sintering Machine SU 450
The new SU 450 is equipped with a highly
sensitive sensor system, which permanently
controls the reduction of the rings and
provides real-time information about the
reduction values on the display. The temperature
may be regulated very precisely close to
the solidus temperature, right until the reduction
begins.
As soon as the pre-defined reduction value
has been reached, the process stops automatically
thus preventing too much deformation
(depending on the composition and alloy the
pre-defined reduction value varies between
0.1 mm and 0.3 mm). The “Sensor-Control-
System” considerably reduces the time and
material required for production for two
major reasons: firstly because the process
parameters can be defined quickly and
without making lots of test rings; and
secondly because the quality of the sintering
process is constantly very high. Therefore the
finishing effort is reduced, as well as the loss
of material, which occurs during subsequent
diamond dressing or turning.
Benefits of the SU 450:
• program control for 100 different process
cycles
• sintering protocol after every cycle
• LCD display
• sensor control system for permanent
process control and real-time display of the
reduction
• no long-winded preliminary tests
• less finishing effort and loss of metal
The Sintering Kit
The sintering kit can be installed into existing
VC 200 to VC 650 V type casting machines
and in all continuous casting machines. The
kit is ideal for the occasional diffusion
bonding job and for smaller series
production. Only a few minutes are needed
to install/remove the sintering kit.
The sintering kit can be used for occasional
diffusion bonding and for small series
production. For larger production quantities
we recommend our sintering machines
SU 300 and SU 450.

SU 300 SU 450
performance
power max. / electrical connection
maximum temperature
3.5 kW 230 V
1000° C NiCr-Ni
4.5 kW 3x400 V
1000° C
capacity
sintering processes per hour ~6-7 ~10
handling+control
reduction control – ■
mechanic fix stop ■ –
electronic fix stop – ■
automatic process stop – ■
program control – ■ LCD-Display, full text readout
programs – 100
data printer – ■
■ = standard equipment o = optional
For sintering the single layers are
centered on a spindle.
For simultaneous processing of
several rings, the rings are isolated
from each other by grafite shims.
39

Frankfurt
✈
How to get to Indutherm:
Mannheim
A 6
HN/Untereisesheim
36
Heilbronn
Nürnberg
Bruchsal
42
Bruchsal
B 293
B 35
12
A5
4
Bretten
A 81
9
Karlsruhe
Karlsruhe/
Durlach
Basel
44
7
B293
Berghausen
Wilferdingen
✈
Baden-Airpark
Walzbachtal-
Wössingen
7
Königsbach
B 10
Stein
3
Pforzheim-West
Eisingen
43
4
B294
2,5
44
Pforzheim
Neulingen-Bauschlott
Pforzheim-Nord
A8
30
A 81
Your partner for service and spare parts
Stuttgart
53
Stuttgart-Airport
✈
München
Indutherm 0113–2000 en · www.riedelwerb.de
Brettener Strasse 32 · 75045 Walzbachtal/Wössingen · Germany
phone: +49 (0) 7203 9218 - 0 · fax: +49 (0) 7203 9218 - 70
e-mail: info@indutherm.de
www.indutherm.de
Member of several European CRAFT Projects
All machine descriptions and technical data published in this leaflet make no claim to be complete.
They are subject to change and therefore they are not basis of contract. No liability for printing errors.
Reprinting and publishing, even as excerpts, are only permitted with the prior consent of Indutherm!