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Product Overview
Wheels, Tyres, Dual wheels, Wheel assembly,
Special wheels
Contents
MD+Page 6
HD+Page 6
HDPage 7
AW-QuickPage 8
Wennekamp SpecialPage 10
Row crop trackPage 12
SOKPage 14
ЕМ, Wheel loaderPage 15
Dual wheels combine harvestersPage 16
2
Why dual wheels?
Enlargement of the contact area by using the appropriate tyres
Cost savings by using dual wheels
E
2.3 ha/h
D
2.9 ha/h
2.3 ha/h
C
B
A
1.8 ha/h
1.6 ha/h
ha/h (%)
Costs/ha (%)
E
Super large tyres
144
69
D
Dual wheels all over the tractor
181
55
C
Dual wheels rear axle
144
69
B
Standard tyres – correct inflation pressure
112
90
A
Standard tyres – high inflation pressure
100
100
General conditions:
10 km/h speed control, 3 m working width, 1.05 €/l fuel, 15 €/h driver
3
HD+ the strong system
Strong machines will require a strong clamp. We offer you more
than double the strength compared with different systems.
A symbolic “test” – just one single capnut is holding a tractor
having a weight of 11.7 t.
The capnut is just strained at 68 % of its capacity.
Just one
single
clamp
11,7 t
4
Comparison of the coupling systems
Our Dual wheel system provides the highest strength
compared with any other systems on the market.
100
Resistance [%]
80
60
40
20
0
HD+
HD
MD+
Competitor A
Competitor B
Competitor C
System
Advantages of the +systems
Capnut
Head spindle
Fitting of HD+
Fitting of HD
+ easy adjustment
– During the adjusting operation,
the clamps will have to be completely removed
• high resistance
• simple assembly
• easy adjustment
• increased clamping force possible
(required for EM dual wheels) used
for wheel weights
5
MD+/HD+
Details
•MD+ and HD+ the patented clamping systems.
•MD+ and HD+ dual wheels will fit in any position.
•Hinging of the clamps at the spacer band will fix the wheel quickly and safely!
• The calibrated spacer band will uniformly transmit the force onto the rim ring.
• The clamp may be readjusted while it is in the hinged position.
•MD+ and HD+ clamps can be used up to a motion angle* of 28°.
MD+ / HD+ is assembled as follows:
Dual wheel
Base wheel
Clamp HD+
Capnuts
with levelling
disks
Clamp MD
MD+ for a tractor performance of up to 200 hp
MD+
Capnut
Head spindle 0 16 mm
Clamp body
- Threaded bolt:
M14x1.5; M16x1.5; M18x1.5; M20x1.5; M22x1.5
Adjustable base
HD+ for a tractor performance of 200 hp and more
HD+
Capnut
Head spindle 0 20 mm
Clamp body
Adjustable base
- Threaded bolt:
M16x1.5; M18x1.5; M20x1.5; M22x2.5 (JD)
Levelling disks will optimize the direction of pull in case of cone shaped disk wheels.
Levelling disk
10°
20°
V-disk
30°
The * motion angle refers to the assembly position.
6
HD
Details
•HD dual wheels will fit in any position.
•Hinging of the clamps at the spacer band will fix the wheel quickly and safely!
• The calibrated spacer band will uniformly transmit the force onto the rim ring.
•HD clamps can be used up to a motion angle* of up to 60°.
HD is assembled as follows:
Base wheel
Dual wheel
Ring nut
Clamp HD
with levelling
disks
HD
HD
Ring nut
- Threaded bolt:
M16x1.5, M18x1.5, M20x1.5, M22x1.5
Hook screw 0 20 mm
Clamp body
Adjustable base
Levelling disks will optimize the direction of pull in case of cone shaped disk wheels.
Levelling disk
10°
20°
V-disk
30°
The * motion angle refers to the assembly position.
7
AW-Quick
Details
For a tractor performance of up to 160 hp
•By means of the AW-Quick coupling system
standard wheels having different fitting dimensions can be mounted.
• The wheels can be used as base or dual wheels.
• The dual wheels will fit the base wheel in any position.
•May be used for up to 160 hp (max. dual wheel size 580/70R38)
• The spacer band situated in the rim flange will
guarantee a firm junction.
AW-Quick is assembled as follows:
Base wheel
Supporting
bridges
Spacer band Holding chains
Dual wheel
Clamp
When choosing the supporting bridge, please bear in mind the projecting wheel hub!
Example for wheel hub
Spacer band
Holding chains
Fixed holding chain
8
Dual wheel
9
Wennekamp Special
Details
Enlargement to AW-Quick
for tractors of more than 160 hp
• use of the dual wheel both as narrow and as twin wheel
• by means of an interchangeable inner disk the dual wheel can be used on
different tractors and agricultural machines as base wheel
• especially appropriate for big tractors
• special purpose-built products on demand
Left picture:
Wennekamp Special
fitted as a dual wheel
Right picture:
Wennekamp Special
fitted to the tractor as a
base wheel
In this way, the Wennekamp Special Wheel is fitted as a dual wheel:
as a base wheel on the tractor
10
on the equipment
as a dual wheel on the tractor
In this way, Wennekamp Special is fitted as a dual wheel:
Base wheel
Holding chains
Ring nut
Dual wheel
Connecting bolts
M22x1.5x60 6 pcs.
Clamp
Clamping ring
with levelling disks
Spacer band
In this way, Wennekamp Special is fitted as a dual wheel:
Base wheel
Connecting bolts
M22x1,5x60
12 pcs.
Wheel disk
Make sure that bolt connections are always
tightened by means of the correct torque!
Dimensions
38 an 38“ 350
38 an 42“ 400
38 an 46“ 400
42 an 42“ 400
42 an 46“ 400
46 an 46“ 400
50 an 38“ 400
50 an 42“ 400
Further dimensions on demand!
11
Light track dual wheels
Dual Wheel System for Cultivation in Rows
12
How do spaced twin wheels work?
Narrow wheels
Spaced twin wheels
Schlepper
Schlepper
Achslast: 4t
Achslast: 4t
Poor plant growth
Optimum plant
growth
High risk
of soil ramming
No risk
of soil ramming
The ideal system for gentle cultivation in rows.
Advantages of the spaced twins
• soil compaction
• reduced wheel print depth
• improved plant growth
System MD+
System АW-Quick
Series and special crops
Corn
row spacing: 45 / 60 / 70 / 75 cm
Potato
row spacing: 70 / 75 / 90 cm
Sugar beet
row spacing: 45 / 50 / 56 cm
Sunflower
row spacing: 70 / 75 cm
13
SOK
The dual wheel system for light trucks and tumbrils
Application:
• mall tractors
•self-loaders
•presses,
• loaders in the landscape management
• viniculture and on sloping sites for stabilisation and increase
of the load capacityt
• Wheel diameter 12°-20°
In this way SOK is fitted:
14
Base wheel
Dual wheel
Ring nut SOK
Clamp SOK
EM wheels
Dual wheels with stop ring
Application:
• To be used on wheel loaders for increasing the load capacity and the tractive
power transmission
•Compression of silage
• Driving on cart tracks
This way it is fitted:
Base wheel
Dual wheel
Capnut
Clamp HD+
Stop ring
15
Combine harvester
Transport of the dual wheels by means of the twin rack
Transport of the dual wheels on the front or rear
power lift of the tractor.
Please pay attention to the requirements of the
StVZO (road traffic regulations).
16
Our locations in Germany
Holle
Switchboard and reception
Sales department
Export department / Original equipment
Stock II
Painting
Service
Aschara
Sales Department
Stock I
Assembly of complete wheels / Service
Stand-by for harvest emergency duties
Stuhr
Purchase department
Sales department
Stock III
Groitzsch
Wheel production
Training centre
17
Rim flange reinforcement
Additional
pitch circle
Pitch circle reinforcement
Additional valves
Valve protection
Our special services:
•Rim flange reinforcement – e.g. for forestry tractors and liquid manure tanks
•Pitch circle reinforcement – e.g. for heavy-load harvesters and liquid manure tanks
•Additional pitch circles – e.g. for fitting dual wheels or the installation of wheel sensors
•Additional valves – e.g. to adjust the air pressure of large-volume tyres
• Valve protection – e.g. for forestry tractors and construction machinery
Achieving optimum results will just be possible if the material required for the work is optimum as well.
Due to several special services offered by us our wheels are real high-end products.
18
The Grasdorf Rad®
A wheel is a wheel? Not at all!
The broad variety of our wheels will offer a custom-made product for any type of application guaranteeing
maximum efficiency. In addition to that, all our wheels are supplied as a complete package with the authorization to be
fitted as original equipment and we also undertake any repairs or modifications required.
Our wheel types:
1 - Standard wheel
1
For a mixture of agricultural/municipal fields
of application
2
2 - Narrow wheel
Developed for cultivation, fertilization and
plant protection of growing crop.
Not applicable for heavy haulage.
3 - Special offset
3
Especially for vehicles with large track widths
we produce wheels with special offsets.
4
4 - High Speed Wheel
Designed for special vehicles of up to 150
km/h, this wheel really lives up to its name.
5 - System Wheel
5
Designed to be used as a narrow wheel
as well, this wheel offers a patented track
adjustment in addition.
6
6 - EM Wheel
Our multi-piece disk wheel will be suitable
both for earth-moving and special vehicles.
7 - Dual Wheel
7
For any power classes.
8
8 - Track twin wheel
For different track widths and row distances
19
Rear weight
Clever ballasting
• Dimensions: width: 2000 mm, height: 1030 mm, depth: 860 mm
• Basic weight: 1760 kgs + basic weight 1300 kgs
Additional weight: 8 x 70 kgs feasible (max. 560 kgs)
Transport and parking device 170 kgs
• Connections for pressure air-brake installation, lighting and hydraulics
• Holding fixture KAT 3 and 4
•Painting:
- Standard RAL 3020.
- Special colour shades will be feasible, if desired.
20
Up to 8 hydraulic connections
will be possible
(6 connections are included in
the standard equipment)
Duct for air pressure actuated braking system and lighting
Variable connections KAT 3 and 4
on both sides!
Transport and parking device
with holding fixture for forklift
and elevating truck
Straßenzulassung
Why is ballasting recommended?
Increased acreage performance due to correct ballasting
without any ballasting
5.3 ha/h
with ballasting
6.2 ha/h
(Tilling implement – working width 6 m)
Advantages of rear ballasting
• Quick mounting and dismounting
•Utilization of the excess length
Rear weight
Wheel weight
1760 kgs
1000 kgs
Overlap
2600 kgs
When should the tractor be equipped with some
additional weights?
The tractor will require some additional weights only
if high tractive forces are to be transmitted.
For any other work the weights should be removed.
Especially as concerns transporters, the additional
weights will cause an increased fuel consumption!
1000 kgs
Ex.: Working hours of the tractor
1000 hrs.
Driving-on-road percentage approx. 50 %
Diesel cost
1.20 €/l
Additional consumption
980 l
Additonal cost
approx. 1100 €
Source:
TU Braunschweig
21
Airbooster® Plus
Tyre inflating and quick vent valve set for any tractor type
The following criteria may be achieved by adapting the tyre pressure:
• saving of 1.45 €/hectare per operation cycle
• crop yield increase by up to 6 %
• tractive power increase by up to 20 %
• reduction of fuel consumption by up to 10 %
Up to s
me *
i
t
3 ster!
fa
R 38
50/75
ing: 6 1.2 bar
t
a
fl
*In
0.8 to
f ro m
22
Scope of delivery
• 4 filling nozzles with internal gasket and protection caps
• 1 three-way quick vent with supply connection and high-quality
manometer 0–4 bar
• 1 inflating tube with incorporated stress relief valve and standardized
plug connection
• 1 coupling head for the trailer brake connection, with standardized compressed air coupling
• 1 assembly instruction for quick coupling with detailed directions for use
• 1 carrying box with nub structure foam lining
Features
New manometer
• with flexible tube for easy
inflating and deflating
• three-way quick vent for inflating, depressurising and checking purposes
Pressure relief valve inside
the tube will protect the tyre
from critical excess pressure
Scale with tyre pressure
recommendations for soil
cultivation,
harvest and road traffic
Patented filling nozzle
• has an inside gasket ring and may
be fitted to any standard valve
• with dust protection cap
• may be removed at any time
Confusion-proof connection
23
Tyres
from S to XXXXXL
Small tyre
Truck tyre
Implement tyre
MPT tyre
EM tyre
Tractor tyre
As a tyre wholesaler and
distributor of tyres for
agricultural, construction
and special vehicles we
sell the complete range
from small tyres to EM
tyres of all well-known
manufacturers.
Thanks to a stock of
approx. 160,000 tyres
constantly available in
our three big
warehouses a speedy
delivery to any dealers
of tyres and agricultural
machinery throughout
Europe can be
guaranteed.
Grasdorf-Wheel® + tyre = complete wheel of superior quality
Above all, the perfect interaction of our internal
capacities becomes apparent in our choice of
complete wheels. Depending on the particular
requirements, our experts will find for each
customer the ideal combination
24
of one of our Grasdorf wheels and the matching
tyre, in each case creating an individual product
that will satisfy even the highest demands.
Our Suppliers – Products
Alliance
Altura
Balkrishna Tyres
Bandenmarkt
Bridgestone
Continental
Cultor
Dunlop
Firestone
Fulda
GKN
Goodyear
Heidenau
Jantsa
Kabat
Kingstyre
Kleber
Malhotra
Michelin
Mitas
Molcon
Nokian
Petlas
Schaad
Taurus
Techking
Titan
Trelleborg
Voltyre
Vredestein
25
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Grasdorf GmbH
Ziegeleistraße 29 · 31188 Holle · Germany · T +49 5062 902-0 · F +49 5062 2020 · info@grasdorf-rad.eu · www.grasdorf-rad.eu