Fishman NoFlex™ Linear Drive System

Fishman NoFlex Linear Drive System
Fishman’s patented NoFlex
Linear Drive System makes the LDS9000,
hands down, the most repeatable dispenser in the world
Pressure loss is enemy number one to
hydraulic positive displacement
dispensers. Pressure loss
occurs when:
A leak in the hydraulic line
will cause pressure loss
The Linear Drive System design assures
Zero Pressure Loss. Here are some reasons why:
Sturdy precision machined
screw and precision motor
assure zero backlash during
operation which eliminates any
chance of pressure loss.
Weak “Reverse
Motion” guide wire
creates lags and
backlash resulting in
pressure loss
The precision motor is
directly engaged with
the screw eliminating lags
and backlash and
preventing any chance of
pressure loss
Loose fit between the
drive rod and the
piston results in
slippage causing
pressure loss
Loose fit between
the piston and the
stabilizer will
cause pressure
loss, resulting in
poor performance
Piston slides North-
South and rocks
East-West,
movement causes
pressure loss
Using a .007" interference fit
pneumatic piston for AirFree
dispensing allows fluid blowby,
causing pressure loss
O-ring failure will
cause pressure loss
Piston does not
easily detach
from stabilizer
when the
syringe is empty
Using a thin wall pneumatic
piston for AirFree dispensing can
result in the side wall collapsing,
causing pressure loss
Thin-walled pneumatic piston
can flex under pressure
causing pressure loss and
resulting in poor
performance
Patented
PosiLok
Connection
■ Stainless steel
mechanical bond
■ Zero flexing
■ No pressure loss
Patented
High Interference
Precision Molded
Piston positively
seals the chamber,
eliminating any chance
of pressure loss
PosiLok
Stainless
steel mounting
ring assures no
flexing between the
gun and the reservoir,
eliminating any chance
of pressure loss
Patented
Precision machined Piston
Stabilizer holds the piston straight
in the reservoir, eliminating any
chance of pressure loss
PosiLok Quick
Release threaded hub
and piston allow zero
slippage between the piston
and drive rod, eliminating
any chance of pressure loss
250350
Hopkinton, MA 01748 • 800-433-2115 • www.fishmancorp.com

Fishman NoFlex Linear Drive System
The LDS9000 Delivers Precise Small Dot Dispensing that
hydraulic systems just can’t match. Here is why:
Hydraulic
Compression
✚
Reverse
Guidewire
Backlash
✚
Piston Rod
Slippage
✚
Fluid
Blow-by*
✚
Piston
Compression*
Fluid
Compression
✚ ✚ =
Stacked
tolerences
that make it
impossible
to dispense
.00025cc
or less
Interference Fit
Locking Connection
Pneumatic
.007
None
AirFree
.015
Industrial Screw
*Piston compression and fluid blow by are a direct result of using
a pneumatic piston for AirFree dispensing
250350
Hopkinton, MA 01748 • 800-433-2115 • www.fishmancorp.com

Fishman Piston Comparison
Why Air Pistons cannot be used for AirFree
Pressure loss destroys dispensing repeatability
dispensing
.007 Interference fit does
not seal the chamber,
thin wall flexes under
pressure, allowing fluid
to flow by—creating a
pressure loss
PosiLok
industrial
thread locks the piston
to the drive rod
guaranteeing no
slippage during
dispensing—no
pressure loss
.015 Interference
fit completely
seals the
chamber—no
pressure loss
No interlocking
connection between
the piston and the
drive rod. Piston
slips during the
dispense, creating
pressure loss
The Competition
Thin wall flexes under
pressure, creating
pressure loss
Thick, maximum-strength wall for high-pressure
dispensing—no flexing/no pressure loss
The Fishman PosiLok
250350
Hopkinton, MA 01748 • 800-433-2115 • www.fishmancorp.com