In 2000, two of South Africa’s best known suppliers of farm machinery merged to form the new company Rovic & Leers (Pty) Ltd. Together these companies share a long history of supplying the needs of South African farmers, our history goes back to the establishment of HM Leers and company in 1927! Today we employ 130 people and have branches in Cape Town, Johannesburg and Pietermaritzburg and also look after farmers’ needs in many sub-Saharan countries. Our key strength is providing our customers with quality products like the well-known Rovic range of fertiliser spreaders, front-end loaders, chisel ploughs, rippers, seedbed tine implements, Rovic Voor wheat and maize planters, as well as an imported line of premium machinery from internationally renowned brands like Kuhn, Krone, Seko, Cima and many more. Coupled with our commitment to outstanding customer service and customer satisfaction, this makes us the farmer’s no 1 choice when selecting his future purchases.

 

Disc Mower

GMD Butterfly

The race for output is inevitable: Farms have increasingly larger areas to harvest, optimal mowing periods are limited, achieving a top quality forage is essential. In these highly stressful times, one must be able to count on reliable mowers, leaving a clean crop stubble and producing quality forage without impurities. KUHN has combined all its energy and knowhow to develop large capacity machines that meet these expectations. Because every farm or company is looking for a solution to meet its needs, KUHN offers several different concepts with one essential point in common: LIFT-CONTROL suspension which allows the mowing units to slide over the plant cover at an optimal, uniform weight, to harvest the best of the plant. Being a reference on the market in terms of mowers is no coincidence. Choose KUHN to have the best assets for being successful.

Technical Specifications GMD 8730 FC 813  FC 813 D FC 813 R FC 883 FC 883 D FC 883 RA
Working width (m/ft) (*) 8.75 - 8.45   8.10 / 26’7” (*)     8.80 / 28’10’’ (*)  
in combination with a front - 8.20 / 28’8’’-            
mounted unit 27’9’’ - 26’11’’            
  dep. on            
  selected overlap            
Attachment cat.2     cat2/3      
PTO speed (min-1)       1000      
Number of discs     2 x 7     2 x 8  
Conditioning system   V-shaped nylon steel fi ngers, polyurethane V-shaped nylon steel fingers, V-shaped nylon
    fi ngers, adjustable rollers fi ngers, adjustable fi ngers,
    adjustable conditioning   adjustable conditioning adjustable
    conditioning hood and   conditioning hood and conditioning
    hood and retractable   hood and retractable hood and
    retractable comb   retractable comb retractable
    comb     comb   comb
Windrow width (m/ft), each 2.40 / 7’10’’ 1.20 - 2.50 / 3’11’’ to 8’2’’ 1.00 - 2.50 / 1.30 - 2.70 / 4’3’’ to 8’10’’ 2.30 / 7’7’’
        3’3’’ to 8’2’’      
Central windrow width (m/ft
- with long conveyors
- with short conveyors
            1.80 - 2.80 /
5’11’’ to 9’2’’
2.30 - 3.30 /
7’7’’ to 10’10’’
Wide spreading -   option     option standard
Transport width (m/ft)       3.00 / 9’10”      
Transport height (m/ft) 3.99 - 3.84 -       4.00 / 13’1”    
  3.72 / 13’1’’ -            
  12’7’’ - 12’2’’            
Lighting and signalling         standard    
Weight (kg/lbs) 1760 / 3880 2793 / 6157 2939 / 6479 2835 / 6250 2986 / 6583 3158 / 6962 4620 / 10185
Theoretical PTO power requirement
for the whole combination
(kW/hp)
88/120   125/170   140/190   170/230
Tractor hydraulic equipment 1 DA + 1 SA     2 DA + 1 SA      
Necessary electrical equipment       1 x ISO 7-pin plug and 1 x ISO 3-pin plug  

 

Lift Control

The LIFT-CONTROL device is much more than just a suspension system with a nitrogen accumulator replacing the traditional spring. The principal advantage of the LIFT-CONTROL system is derived from the exclusive way in which kinetic forces that act on the cutterbar are utilized. KUHN engineers have succeeded in making a dynamic suspension system as opposed to the passive system commonly in use. With the LIFT-CONTROL system as the force exerted on the cutterbar increases the suspension system automatically lightens the cutterbar. The greater the force the lighter the cutterbar.

TECHNICAL SPECIFICATIONS GMD 2810 GMD 3110 GMD 3510 GMD 4010 GMD 4410
Working width (m/ft) 2.67 / 8’8’’ 3.10 / 10’2’ 3.51 / 11’7’’ 3.95 / 13’1” 4.35 / 14’4”
Attachment   3 point - category 2 3 point - category 3
Adjustable lower hitch pins by offset     Standard    
Number of discs 6 7 8 9 10
PTO speed (rpm or min-1) 540 1000 or 540* 1000  
Cutter bar drive     Through the 1st disc on the tractor side
Gear train protection     PROTECTADRIVE system  
Transport position setting   Hydraulic swivel 90° backwards  
Automatic mowing unit swivel point       Standard  
locking for transport          
Suspension and safety: combined LIFT-CONTROL          
hydro-pneumatic suspension and Non-Stop safety     Standard    
Swath wheel inner and outer   outer    
Average swath width (m/ft) 1.70 / 5’6’’ 2.30 / 7’7’’ 2.80 / 9’2’’ 3.30 / 10’6’’ 3.70 / 12’2’’
Integrated hydraulic lift     Standard    
Lighting and signalling system     Standard back  
Weight (approx.) (kg/lbs) 760 / 1675 870 / 1918 920 / 2028 1030 / 2270 1080 / 2380
Necessary tractor hydraulic outlets   1 double acting outlet 1 double acting
        + 1 single acting outlet
Power requirement as from (kW/hp) 51/70 60/80 67/90 81/110 90/120

 

GMD TL Series

The GMD 2850 TL - GMD 4050 TL offer high working rates,  simple adjustments and low maintenance, for dependable grass and forage harvesting. These trailed mowers provide easier tractor attachment as well as improved cutterbar flotation and contour following, compared to fully-mounted models. The trailed design also lowers the tractor ballast requirement, allowing use with smaller tractors, while maintaining excellent stability both at work and in transport.  The new KUHN mowers are the logical and practical alternative to mounted disc mower and "caddy" combinations. Get quality and reliability, along with outstanding support and maximum resale value, from the pioneer  in disc mower technology and the worlds leading implement manufacturer. 

 

Model GMD 2850 TL GMD 3150 TL GMD 3550 TL GMD 4050 TL
DIMENSIONS        
A - Width of Cut 8'10'' / 2.7 m 10'2" /3.1m 11'6" /3.5 m 13' /4.0 m
B - Swath Width -depending on crop conditions  5'8" / 1.7 m 7'3" / 2.2 m  8 '6" / 2.6 m 10' / 3.0 m
C - Transport Width 8'10" / 2.7 m 10'3" / 3.1 m 11'8 / 3.55m 13'1" / 4.0 m
D - Transport Length   17'6" / 5.33 m    
E - Header Ground Clearance in Transport   13.75" / 0.35m    
Specification        
Standard Equipment        
Number of Discs 6 7 8 9
Number of Knives per Disc   2    
Disc Speed (rotational Frequency)   2986 rpm    
Suspension Type   Proactive Lift    
Suspension Lift   Spring    
Suspension Adjustment   Independent  Right & Left Side
Suspension Travel     10" - 4" / 25.4 cm - 10.2 cm  
Optidisc "Lubed-For-Life" Cutterbar   Standard    
Proactive Disc Bearing Stations   Standard    
Cutting Height Control   Turnbuckle With Indicator  
Cutting Height Adjustment   Single Point    
Cutting Height Range   1" - 3.2" / 2.5cm - 8.15cm    
Swath Control   Non-adjustable    
Transport Lighting   Standard    
Transport Wheels   9.5L-15    
Gyrodine ®Swivel Hitch Options   2 Point or Drawbar    
Optional Equipment        
Wide Angle Secondary PTO   Yes    
16,000 lb. Safety Chain for Drawbar Swivel Hitch   Yes    
Weight 2520 lbs / 1143 kg 2800 lbs / 1270 kg 2920 lbs / 1324 kg 3000 lbs / 1360 kg
Tractor Requirements        
Minimum PTO Power Requirement 40 hp / 30 kW 47 hp / 35 kW 54 hp / 40 kW 60 hp / 45 kW
Hydraulic Connections   2 Double Acting    
Electrical Requirement   7-pin SAE Plug for Lighting    
PTO Speed (rotational frequency) - factory / convertible   540 rpm (min^-1) / 1000 rpm (min ^ -1 )  

 

GMD 10 Series

Today, all high-performance farms are aware of the importance of basic forage for their herds. All the extra energy available in the forage is reflected in higher productivity and hence higher revenues. HOW TO ACHIEVE TOP-QUALITY
FORAGE With KUHN mowers you can count on several features, which help keeping the forage clean, avoid that it is chopped and preserve the sward. Features for an optimized ground pressure and travel range have been put into action on both series. HOW TO SAVE ON TIME AND ENJOY A STRESS-FREE USE The reliable 100 series cutter bar stands for longevity and limited down time. Important parts, as the attachment frame of the GMD 100 models, have been reinforced to enhance the machine´s stability even more.

  Working
width
(m/ft)
Cutter bar Knife
attachment
GMD 16 1.6 series 100 by bolts
GMD 20 2 series 100 by bolts
GMD 24 2.4 series 100 by bolts
GMD 28 2.8 series 100 by bolts
GMD 240 2.4 series 100 by FAST-FIT or bolts
GMD 280 2.8 series 100 by FAST-FIT or bolts
GMD 310 3.1 series 100 by FAST-FIT or bolts
GMD 350 3.51 OPTIDISC by FAST-FIT or bolts

 

GMD 100 Series

A high rate of working speed, a nonclogging cutterbar, and no blades to sharpen. These features and many more are available in the full range of rear 3 point mounted GMD Multidisc Mowers manufactured by KUHN. With several hundred thousand disc mowers manufactured over the last forty years, KUHN has continuously improved the GMD multidisc mower and remains the largest manufacturer of multidisc mowers in the world

S P E C I F I C A T I O N S GMD 400 GMD 500 GMD 600 - GII GMD 700 - GII GMD 800 - GII GMD 350
Working width (m/ft) 1.60 / 5’3’’ 2.00 / 6’7” 2.40 / 7’11’’ 2.80 / 9’2” 3.11 / 10’2” 3.51 / 11’6’’
Number of discs 4 5 6 7 8  
Number of Knives (2 per disc) 8 10 12 14 16  
Removable disc bearing stations       Standard    
Gear train protection     Protectadrive System    
Suspension     Per Spring     Hydropneumatic
Safety     Per mechanical lock    
Average swath width (m/ft) 1.10 / 3’7’’ 1.40 / 4’7” 1.70 / 5’7’’ 2.00 / 6’7” 2.40 / 7’11” 2.80 / 9’2”
Outer swath wheel       Standard    
Mowing angle From +35° to -22° From +35° to -28°   From +35°
  (-40° with optional equipment)       to -23°
Headland turn position Per tractor lift   Per hydraulic cylinder  
Setting into transport position   Cutter bar vertical folding by hydraulic cylinder and automatic locking
Cutterbar unlocks for work     in cab control      
Machine storage and locking Per parking stand   Per parking lock Per parking
            stand,
            a pin
            and valve
Attachment 3- point cat. 1 & 2   3- point cat. 2    
PTO drive (rpm)     540      
Free wheel optional equipment   standard    
Theoretical PTO power requirement (approx.) kW/hp 21/28 25/35 31/42 37/50 41/56 66/90
Necessary hydraulic outlet   One single acting valve     1 SA or
            1 DA
            depending
            on equipment
Weight (approx.) 379 427 535 567 646 822
Hydraulic rearward pivot for transport combined            
with vertical folding           x
Outer guard hydraulic folding (only compatible           x
with rear pivot)            
Reinforced PTO with free wheel       Standard    
Inner swath wheel to reduce the swath     approx. swath
width 1.50/
1.60 m (4’11’’/
5’3’’)
    Standard
width depending on conditions            
High cone to reduce the swath width   approx. swath
width 1.10
(3’7”)
  approx. swath    
depending on conditions       width 1.75 m    
        (5’9”)    
Inner swath wheel to be combined with high cone       approx. swath
width
1.50/1.60 m
(4’11’’/5’3’’)
   
to reduce the swath width depending on conditions            
Inner swath board to be combined with inner swath     approx. swath approx. swath    
wheel (GMD 600-GII) and high disc cone + inner     width width    
swath wheel (GMD 700-GII) depending on conditions     1.20 m / 3’11’ 1.25 m / 4’1’’    
Kit for mowing 40° below horizontal x x        
Lighting and signalling system x x x x x x
Extended hitch pin to offset the machine by up to     x x x  
200 mm to the right for very wide tractors            
Raised skids for mowing in diffi cult conditions x x x x x x

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