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change of turning<br />
direction<br />
<strong>Power</strong> harrow<br />
<strong>Zirkon</strong>
LEMKEN <strong>Zirkon</strong><br />
The Concept<br />
The use of power harrows gains more and more importance<br />
in agriculture. Due to the combination with other<br />
implements a lot of working processes can be done<br />
faster and more economically.<br />
The power harrow has an intensive mixing and crumbling<br />
effect up to 15 cm working depth. The active tools prepare<br />
an optimal seedbed in almost all soil conditions,<br />
even in hard, dry and heavy soils as well as in soils with<br />
very compact layers.<br />
Working intensity can be influenced by driving speed,<br />
PTO speed and gearbox adjustment of the power harrow.<br />
This means that the seedbed preparation can be<br />
done regularly in only one operation. The LEMKEN<br />
<strong>Zirkon</strong> power harrows excellently meet the high requirements<br />
of modern farming business. They are suitable for<br />
continuous operation in conventional and minimum tillage<br />
seeding procedures and can be applied in front as<br />
well as in rear mounting.
Each version perfect<br />
Front and rear mounting<br />
Semi-mounted<br />
The front mounted <strong>Zirkon</strong> performs exceptionally well in<br />
difficult soil conditions and is perfect for special crops<br />
such as vegetable growers. The precise depth guidance<br />
and good reconsolidation can be achieved by a choice<br />
of different LEMKEN rollers.<br />
The rear mounted <strong>Zirkon</strong> e.g. with fitted on Saphir<br />
mechanical seed drill or Solitair pneumatic seed drill is a<br />
high performing seed combination. In working widths<br />
from 4 to 6 m it is hydraulically foldable to 3 m transport<br />
width. When changing the field no preparation times are<br />
necessary which saves time and money.<br />
The semi-mounted <strong>Zirkon</strong> power harrow with fitted on<br />
Solitair seed drill is a combination with high hectare performance<br />
for demanding farming businesses. It guarantees<br />
soil protecting use as well as safe road transport.<br />
The Solitair seed drill is easily uncoupled enabling the<br />
power harrow to be used independently or via 3-point<br />
linkage with other implements.
Precision technique from LEMKEN<br />
The dimensions<br />
The trough<br />
<strong>Zirkon</strong> 10 <strong>Zirkon</strong> 7<br />
ball bearing<br />
sealed bearing<br />
oil seal<br />
hardened race ring<br />
seal washer<br />
double nut<br />
flat lynch pin<br />
Depending on working condition, tractor and hectare<br />
performance there is a choice between <strong>Zirkon</strong> 7 and<br />
<strong>Zirkon</strong> 10. For best stability and long working times rotor<br />
shaft and tine carrier are forged in one piece and highly<br />
heat treated.<br />
Having the same basic construction, the <strong>Zirkon</strong> 10 is suitable<br />
for highest demands due to stronger bearings, larger<br />
shaft diameter and thicker trough bottom.<br />
The heart of the <strong>Zirkon</strong> power harrow is its gear trough.<br />
Heavy gauge steel is used to form the monocoque<br />
trough in which bearing housings are welded. Trough<br />
and cover are welded together to a distortion free unit.<br />
Tine carriers and gear wheels are positioned precisely<br />
and safe in the trough. Effortless and smooth running<br />
and the precise guidance of the tine carriers guarantee<br />
for a long lifetime of the <strong>Zirkon</strong> power harrow.
Stability for high hectare performance<br />
The bearing<br />
The tine carrier<br />
trough<br />
tine carrier<br />
After welding the bearing housings are machined in „one<br />
position“ on a CNC machining centre providing an absolutely<br />
precise bearing position and an easy and quiet<br />
running of the <strong>Zirkon</strong> power harrow.<br />
Bearings which are sealed on both sides as well as the<br />
complex sealings of the trough prevent the bearings<br />
reliably from damage, dirt and running dry.<br />
There are four tine carriers per metre all positioned<br />
sequentially in a different angle enabling the tines of the<br />
<strong>Zirkon</strong> power harrow to work successive after each<br />
other. This provides smooth and equal running of the<br />
power harrow even in difficult conditions and prevents<br />
swinging up. Damages by stones are excluded due to<br />
the tine carriers being round as plates.
Modern gear box technique<br />
The gearbox with<br />
changeable cogwheels<br />
The Dual-Shift gear<br />
Changing the<br />
rotation<br />
All components of the <strong>Zirkon</strong> 7 gearbox<br />
are heat treated; shafts and cogwheels<br />
are additionally surface hardened.<br />
The desired rotor speed can be<br />
adjusted by simply changing the cogwheels.<br />
The PTO shaft connection is<br />
exactly centrally positioned, providing<br />
special protection of gearbox and<br />
PTO shaft.<br />
The newly designed Dual-Shift gear<br />
is constructed as switchable bevel<br />
gearbox. The rotor speed is switched<br />
via an easy to reach switch<br />
lever at the gearbox. Depending on<br />
the gear position, 330 or 440 rpm<br />
can be selected with tractor PTO at<br />
1000 rpm.<br />
The Dual-Shift gear enables additionally<br />
to reverse the direction of rotation.<br />
After the loosening of three<br />
bolts the gear can be simply moved<br />
20 mm between two stops by a<br />
spindle. For the reversal of rotation<br />
either the left or the right rotor is driven<br />
by the cogwheel.
The all-in-one implement<br />
The turning<br />
direction<br />
The Allround knife<br />
tine<br />
The knife tines<br />
change of turning<br />
direction<br />
Due to the reveal of the turning direction<br />
the knife tine of the <strong>Zirkon</strong> 10<br />
can be driven in grade or drag position.<br />
In drag position the Allround<br />
tines have a better levelling effect<br />
and stones remain in the ground. The<br />
grade position is ideal for mulch seeding<br />
due to intensive mixing of soil<br />
and vegetation like a rotary cultivator.<br />
Fine earth is moved to the level of<br />
seed placement, large crumbles<br />
remain on the surface and reduce<br />
slaking and erosion.<br />
The <strong>Zirkon</strong> 10 is equipped as standard<br />
with Allround knife tines with<br />
edges sharpened on both sides.<br />
Each pair of tines is fitted to the rotor<br />
by a flat lynch pin which enables a<br />
quick change of tines without tools.<br />
The fitting components below the<br />
tine carrier create an increase of<br />
space and the smooth trough bottom<br />
prevents from stones being trapped.<br />
At 340 mm long and 20 mm thick the<br />
Allround tines guarantee for a very<br />
long life.<br />
A special hardening process prevents<br />
the tines especially from breakage<br />
and wear. Tines with hard<br />
facing in critical areas are available<br />
and can provide an exceptionally<br />
long working life.<br />
The knife tines of the <strong>Zirkon</strong> are<br />
arranged in drag position. Large diameter<br />
high tensile bolts with forged<br />
threaded plates secure the tines<br />
against tearing and loss.
Competence in details<br />
The headstock<br />
The three point<br />
linkage<br />
The wheelmark<br />
eradicators<br />
The <strong>Zirkon</strong> power harrow is equipped<br />
with a tough headstock with an<br />
integrated toolbox. The elastic one<br />
piece drawbar between the lower<br />
link connections absorbs shocks<br />
and protects tractor and implement<br />
during transport and work. Due to<br />
the lower link connections which<br />
can be shifted the distance between<br />
tractor and power harrow can be<br />
adjusted individually.<br />
A hydraulic three point linkage<br />
system can be attached to the<br />
connections which are integrated<br />
into the headstock as standard. The<br />
changeable height and length<br />
distances allow the <strong>Zirkon</strong> power<br />
harrow to be adjusted optimally to all<br />
seed drills. All joints are equipped<br />
with bushes to protect them against<br />
wear.<br />
The wheelmark eradicators can be<br />
adjusted in working depth without<br />
tools. They can be easily adapted to<br />
the track width of all tractors. To protect<br />
them against damage they are<br />
fitted with an automatic overload<br />
safety device.
Safe and succesful<br />
The side shield<br />
The levelling bar<br />
The seedbed<br />
The height adjustable side shields<br />
which are positioned left and right<br />
from the tine row prevent the outer<br />
tines from ridging. They can get out<br />
of the way sideward and upward<br />
and are foldable for transport of<br />
machines with 3 m working width.<br />
Optional feed discs and side shield<br />
extensions enable precisely connected<br />
working passes without ridges.<br />
The levelling bar regulates the flow<br />
of soil and optimally complements<br />
the work of the knife tines. It is<br />
height adjustable with an eccentric<br />
lever and a pin adjuster, a spanner<br />
can be used to support the adjustment.<br />
It is designed to push stones<br />
down, and to level the loosened and<br />
crumbled soil. It can be mounted<br />
before the knife tines or between<br />
knife tines and following roller.The<br />
levelling bar regulates the flow of soil<br />
and optimally complements the work<br />
of the knife tines. It is height adjustable<br />
with an eccentric lever and a pin<br />
adjuster, a spanner can be used to<br />
support the adjustment. It is designed<br />
to push stones down, and to<br />
level the loosened and crumbled<br />
soil. It can be mounted before the<br />
knife tines or between knife tines<br />
and following roller.<br />
There are different trapeze rollers<br />
available as following implements for<br />
the <strong>Zirkon</strong> power harrow. The trapeze<br />
rings consolidate the soil stripewise<br />
with the same distance as the<br />
drill coulters. This enables an equal<br />
seeding depth and an optimal reconsolidation.
LEMKEN <strong>Zirkon</strong> with Solitair<br />
The combination<br />
Optimal soil adaption<br />
The semi-mounted <strong>Zirkon</strong> power harrow can be used<br />
alone or in combinations. If used solo the transport<br />
wheels are raised during work, so that the large tyres<br />
have no soil contact. For the combination of <strong>Zirkon</strong><br />
power harrow and LEMKEN Solitair pneumatic seed drill<br />
the connections lie above the axle of the power harrow<br />
trailer. This means the combination is short, compact<br />
and easy to separate. The combination features a weight<br />
transfer system as standard which enables even weight<br />
distribution and a precisely kept working depth of the<br />
power harrow with different seed levels in the hopper.<br />
There is a hydraulic three point linkage available as an<br />
option to combine the <strong>Zirkon</strong> power harrow with other<br />
seed drills.<br />
To ensure an even depth of cultivation the foldable<br />
<strong>Zirkon</strong> power harrows of 4m working width and above<br />
consist of two units. Each unit is secured with a pendulum<br />
system and works independently. The pendulum<br />
axles are positioned centrally in front of each unit so that<br />
the power harrow is always guided optimally.
The forward-looking combination<br />
Safe transport<br />
Front mounting<br />
All Lemken power harrows of 3 m and above are problem<br />
free when it comes to road transport as each unit<br />
folds to a transport width of 3 m maximum which corresponds<br />
to the road traffic act. The semi mounted <strong>Zirkon</strong><br />
power harrow can be equipped with a brake system for<br />
fast and safe road transport.<br />
Folding up or down takes just a few seconds and the<br />
combination is immediatly ready for work or transport.<br />
There is no need for a costly transport trailer and the<br />
quick transport from field to field increases the performance.<br />
The front mounted <strong>Zirkon</strong> performs exceptionally well in<br />
difficult soil conditions and is perfect for special crops<br />
such as vegetable growers. The tube bar roller in front of<br />
the power harrow enables precise depth guiding of the<br />
implement and good reconsolidation can be achieved by<br />
a choice of different LEMKEN rollers.
Technical data<br />
Working Weight Transport PTO Rotor Number of<br />
Up to Description width without roller width rpm rpm Rotors<br />
kW (HP) (approx. cm) (approx. kg) (approx. m) (min -1 ) (min -1 )<br />
– rigid –<br />
88 (120) <strong>Zirkon</strong> 7 / 250 250 658 2.5 540 / 1,000 365 / 438 10<br />
103 (140) <strong>Zirkon</strong> 7 / 300 300 718 3.0 540 / 1,000 365 / 438 12<br />
103 (140) <strong>Zirkon</strong> 7 / 300 S* 300 746 3.0 540 / 1,000 365 / 438 12<br />
103 (140) <strong>Zirkon</strong> 7 / 400 S* 400 928 4.0**<br />
540 / 1,000 365 / 438 16<br />
147 (200) <strong>Zirkon</strong> 10 / 300 300 922 3.0 1,000 330 / 440 12<br />
162 (220) <strong>Zirkon</strong> 10 / 400 400 1,149 4.0**<br />
1,000 330 / 440 16<br />
170 (230) <strong>Zirkon</strong> 10 / 450 450 1,269 4.5**<br />
1,000 330 / 440 18<br />
– hydraulic folding –<br />
184 (250) <strong>Zirkon</strong> 10 / 400 K 400 1,774 3.0 1,000 330 / 440 16<br />
199 (270) <strong>Zirkon</strong> 10 / 450 K 450 1,908 3.0 1,000 330 / 440 18<br />
213 (290) <strong>Zirkon</strong> 10 / 500 K 500 2,078 3.0 1,000 330 / 440 20<br />
235 (320) <strong>Zirkon</strong> 10 / 600 K 600 2,464 3.0 1,000 330 / 440 24<br />
– hydraulic folding, semi-mounted –<br />
184 (250) <strong>Zirkon</strong> 10 / 400 KA 400 3,543 3.0 1,000 330 / 440 16<br />
199 (270) <strong>Zirkon</strong> 10 / 450 KA 450 3,746 3.0 1,000 330 / 440 18<br />
213 (290) <strong>Zirkon</strong> 10 / 500 KA 500 3,935 3.0 1,000 330 / 440 20<br />
235 (320) <strong>Zirkon</strong> 10 / 600 KA 600 4,459 3.0 1,000 330 / 440 24<br />
* strong headstock for connection of stronger three point linkage<br />
** exceeds admitted transport width<br />
<strong>Zirkon</strong> 7 basic equipment<br />
Drawbar Cat II (Cat. III as option), Walterscheid-PTO<br />
shaft with torque limiting clutch, gearbox with change<br />
gears 21/23, rear PTO 1 3/8“, specially hardened knife<br />
tines, protection bar, spring-loaded side shields adjustable<br />
in height<br />
<strong>Zirkon</strong> 7 optional equipment<br />
Rollers from the large choice of LEMKEN rollers, mechanical<br />
or hydraulic rear linkage, rear A-frame, track markers,<br />
wheelmark eradicators, levelling bar, feed discs,<br />
front mounting headstock, PTO shaft control, warning<br />
boards with lighting equipment, hard faced tines, additional<br />
change gears 19/25 or 18/26<br />
<strong>Zirkon</strong> 10 basic equipment<br />
Drawbar Cat II (Kat. III as option ), Walterscheid-PTO<br />
shaft with torque limiting clutch for 100 and 540 PTO,<br />
2 speed change Dual-Shift gearbox with changing turning<br />
direction, carriers for track markers and wheelmark<br />
eradicators, rear PTO 1 3/4“with 6 dents, specially hardened<br />
quick change Allround knife tines set to grade or<br />
drag position, spring-loaded side shields adjustable in<br />
height<br />
<strong>Zirkon</strong> 10 optional equipment<br />
Rollers from the large choice of LEMKEN rollers, mechanical<br />
or hydraulic rear linkage, rear A-frame, track markers,<br />
wheelmark eradicators, levelling bar, feed discs,<br />
front mounting headstock, PTO shaft control, warning<br />
boards with lighting equipment, hard faced Allround knife<br />
tines,<br />
All information, measurements and weights are subject to continuous technical further development and are therefore non obligatory.Information<br />
regarding weights always refers to the basic model. The right is reserved to make alterations<br />
LEMKEN GmbH & Co. KG<br />
Weseler Str. 5, D-46519 Alpen · Postfach 11 60, D-46515 Alpen<br />
Telefon (+49) 28 02 / 81-0 · Fax (+49) 28 02 / 81-2 20<br />
E-Mail: lemken@lemken.com · Internet: www.lemken.com<br />
Your LEMKEN dealer:<br />
FS. B.O.S.S · 12/04 · 175 0185/GB
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