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Gang Mowers & Triple Mowers |
Gang Mowing Systems for Lawn, Sportsfield, Park or Field
For professional mowing & grounds maintenance machinery visit MowTrade.com
Trailed Gang Mowers - History and Considerations
Since the early 1900s cylinder mowing with simple land wheel driven gang mowers has been the preferred system for generations of groundsman, greenkeeper and park keeper. The low power requirement, simple configuration and ease of adjustment and maintenance make this traditional system a very effective method of cutting and recycling grass.
The professional models today are of two basic cutting widths and may use an 8” or 10” cylinder diameter. Generally an 8” cylinder would be suitable for sport, fine lawn and parkland with a 10” diameter for more growth such as golf course semi-rough or country park and paddock.
Considerations to the suitability of cutting surfaces should be made as gang mowers are designed to work on good level ground and even rolling surfaces. The overall unit weight is also important to maintain traction as the wheels need to remain in contact with the surface to drive the cutting cylinder.
Buyer beware - Lightweight imported “Mini Gang” sets will be useless if you expect a consistent quality of cut - once you move forward and increase speed they start lifting and bouncing leaving uncut ribs on the surface. Unlike a quality professional unit such as the Dennis Guildfords - With each unit weighing 50kg on its own without the towing frame these gang mowers are more than adequate and produce a 1st class result - they are stout enough to hold tight to the surface and remain so even at max cutting speed.
Dennis Guildford Gang Mowers
The 24" (61cm) cut Dennis Guildford Junior gang mower is ideal for lawn, park and sport areas and is the only choice for lower powered towing units - such as ATV, Tractor and Ride on mowers - a minimum of 13hp is required for a set of three gangs. Used correctly and at sensible mowing speed this set up will save hours over modern rotary cut and collect systems.
Single units can also be purchased to add on or enable upgrades to a set of 5 or for a very simple single unit application.
| Overall cutting width for a set of three is 69" (1750mm) |
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Full Size Trailed Gang Mowers
R T Machinery have the answer to affordable grass cutting with our “Grass Roots” sports product range.
Manufactured to very high standards with the professional Groundsman and greenkeeper in mind our range of traditional trailed gang mowers offer exceptional value at affordable prices.
At R T M our watch word has always been quality and our company policy is to “Link value with service” we believe this product range achieves these qualities.
The RTM Sportster and Parkster range of mowers has been designed and manufactured to meet the standards of those that traditional units of the past – build strength, durability, cutting performance and long life. |
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With the Sportster and Parkster we have matched these qualities and at a price that most sports clubs and estates can afford.
With spiraling machinery costs and increases in servicing costs a realistic product price is key to our “Grass Roots” campaign.
We offer simple no nonsense pricing of our products with the addition of subsidised payment plans and rental packages for approved sports clubs and associations – ring for details.
Our specialist range includes the “Sportster” set of three fully trailed ground driven 30” gang mower units with semi pneumatic puncture free tyres, 6 bladed 8” cylinders, fully greaseable rear rollers, simple to assemble towing frames. This unit can be upgraded to a set of 5 mower units with the simple addition of two more mowers and wing frames.
We offer simple no nonsense spare parts support with easy to buy & store reconditioning parts packs. These are available for the rear rollers, cylinder drive and gearbox casings – a simple way to undertake your own or local engineer repairs – All carefully packed we guarantee that these kits have all the parts you need for simple servicing as the years roll by.
Environmental & Turf Safe Package
Bio lubricants – we will also be offering a completely 100% Bio grease and lubricant option on these units.
Build Options
Standard with 6 bladed cylinders choice of 5 or 7 bladed build if required. Standard with single edge bottom blade options of double reversible edge at servicing or by special order..
3, 5 or 7 unit packages.
Manufacturers Warranty
A full 12 months parts and labour warranty package on all RTM products.
Marketing Policy
Special introductory rates and finance packages
for sports bodies and charities.
Rental Policy
Operating Lease
Fixed Term Direct Rental
Click here for RTM Gang Mower PDF brochure
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"The gang mowers were the best value we could find anywhere, at a very reasonable price, and the service provided by RTMachinery has been good (delivery, setting up).
The cut leaves an excellent appearance, and there is a good range of heights for cutting to suit all conditions."
Alan Wright
Chippenham Cricket Club 2008 |
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Trailed sports, estate
and fine lawn gang mowers -
sets of 3 or 5 with towing frames.
- Can
be used with any tractor and most towing units (Atv, 4
X 4, lawn tractor) 13hp min required -
max towing speed 7 mph.
- Quickly
and easily fitted or removed
- Mowers
can be uncoupled and lifted instantly for road-crossing
or bench adjustment - setting
cut.
- Available
with clevis or 50mm ball
hitches.
- Can
be set up in overlap or
triple cut trailed for real
mulching in smaller area's
and manovering around obstacles
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COMPACT HYDRAULIC REELMOWER model ref.TR66 & TR84
Specially designed hydraulically powered 3-point linkage mounted reelmowers for compact tractors from 16hp upwards. Ideally suited to those who wish to use their compact tractor for a variety of tasks including quality cylinder mowing. Two models available.
TR66 |
TR84 |
STANDARD SPECIFICATION
| Model |
TR66 |
TR84 |
| Cutting Width |
1.68m / 66 in |
2.13m / 84 in |
| Transport Width |
1.85m / 73 in |
2.31m / 91 in |
| Reel Drive System |
Self contained hydraulic power pack driven by tractor PTO pump and supplied by 23L (5gal) frame mounted reservoir. Circuit protected by relief valve and inlet suction and return line filters. |
| Cutting Units |
3 x 610mm (24 ins)
5 blades |
3 x 762mm (30 ins)
5 blades |
| Cutting Height |
Adjustable from 9.5mm - 50mm (3/8in - 2 ins) |
| Cutting Ratio |
nfinitely variable according to forward speed. |
| Cutting Performance |
Up to 1.2ha/h at 9.5km/h
Up to 3 acres/hr at 6mph |
Up to 1.5ha/h at 9.5km/h
Up to 3.8 acres/hr at 6mph |
| Operating Controls |
3 position lever for forward, neutral & reverse reel rotation |
| Weight |
196kg / 432 lbs |
257kg / 567 lbs |
| Tractor Attachment |
3-point linkage Cat I |
| Tractor Requirement |
16hp+ with 3-point linkage, 540 rpm PTO - Option of 7 bladed cylinders and floating head. |
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HEAVY DUTY HYDRAULIC REELMOWER model ref.HD84
HD84 |
Heavy Duty, three-gang tractor mounted mower suitable for use with tractors of 25hp+, and giving 2.13m width of cut. Designed for sports grounds, school playing fields and amenity turf.
KEY FEATURES
A careful balance between cutting reel diameter, number of blades and speed of rotation enables the HD84 to produce a fine finish on all regularly cut grass, and also deal effectively with longer, tougher areas when required.
Tractor mounted remote controls for convenient selection of cutting reel forward, neutral and reverse rotation. |
STANDARD SPECIFICATION
| Model |
HD84 |
| Cutting Width |
2.13m / 84 in |
| Transport Width |
2.28m / 91½ in |
| Reel Drive System |
Self contained hydraulic power pack driven by tractor PTO pump and supplied by 55L (12gal) frame mounted reservoir. Circuit protected by relief valve and inlet suction and return line filters. |
| Cutting Units |
3 heavy duty 762mm (30 in) wide, 200mm (8 in) dia. 7 blades |
| Cutting Height |
14mm - 140mm (½ - 5½ in) |
| Cutting Ratio |
Variable depending on tractor gear up to 68cuts/m, 62 cuts/yd |
| Cutting Performance |
Up to 1.5ha/h at 9.5km/h
Up to 3.8 acres/hr at 6mph |
| Weight |
420kg / 926 lbs |
| Tractor Attachment |
Fully-mounted. Category One 3-point linkage. |
| Tractor Requirement |
25hp+ with Category One 3-point linkage, check chains and 540 rpm PTO |
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HEAVY DUTY HYDRAULIC REELMOWER HD138/TR
HD138 |
The SISIS HD138 is a heavy duty, five-gang trailed mower suitable for use with tractors of 35hp+, and giving 3.5m width of cut. Designed for sportsgrounds and amenity turf.
FEATURES
- Twinroll floating heads
- Units fold for narrow width work
- A careful balance between cutting reel diameter, number of blades and speed of rotation enables the HD138 to produce a fine finish on all regularly cut grass
- Tractor mounted electric remote controls
- The self-contained hydraulic system driving the cutting reels also provides lift to the units for transport or narrow width working
- Designed for ease of maintenance
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STANDARD SPECIFICATION
| Model |
HD138 |
| Cutting Width |
3.5m / 138 in |
| Wings folded |
2.13m / 84 in |
| Transport Width |
2.22m / 87 ½ in |
| Reel Drive System |
Self contained hydraulic power driven by tractor PTO pump and supplied by 55L (12gal) frame mounted reservoir. Circuit protected by relief valve and inlet suction and return line filters. |
| Cutting Units |
5 heavy duty 762mm (30 in) wide, 200mm (8 in) dia. 7 blades |
| Cutting Height |
12.7mm - 140mm (½ - 5½ in) |
| Cutting Ratio |
Variable depending on tractor gear up to 68cuts/m, 62 cuts/yd |
| Cutting Performance |
Up to 2.5ha/h at 9.5km/h
Up to 6.2 acres/hr at 6mph |
| Weight |
850kg / 1874 lbs |
| Tractor Attachment |
Drawbar |
| Tractor Requirement |
35hp+ with clevis drawbar and 540 rpm PTO |
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Triple Mowers
Ride on triple mowers are a self powered option on gang mowing – with petrol and diesel engine choices these machines are easy to store, consistent in the power to the cutting unit and very maneuverable. Other key advantages to be considered - Lower footprint on the turf. - Easier to transport and for storage - Independent cutting unit drive by belt or hydraulic motor - Mowing units in front of the tractor or power unit - Good operator visability. |
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I-Trim
The new I-Trim is a 70” ride-on triplex rotary mower specially engineered to cut undulating terrain on slopes, banks and particularly green and bunker surrounds. Hydrostatic power increases machine stability when working on slopes and steep banks and the 3-axis rotation allows the decks to follow uneven contours without the risk of scalping. The National i-Trim features a 34hp Briggs & Stratton 954 DT turbo diesel engine.
| Engine |
34hp Briggs & Stratton 954 DT turbo diesel engine |
| Cutting width |
(70”) 178cm |
| Transmission |
Hydrostatic transmission |
| Speed |
7mph (transport) |
| Deck |
Three 66cm (26”) convertible rear discharge or mulching decks |
| Deck construction |
7-gauge welded steel decks |
| Cutting height |
1.5” (4cm) to 4” (10cm) at 0.25” increments |
| Blades |
3 |
| Tyres |
Front 16x6.5 x 8 - Rear 23x10.5x12 |
| Fuel capacity |
10 gallons |
| Dimensions |
(L) 278cm, (W) 186cm, (H) 175cm - with ROPS |
| Dry weight |
936kgs |
| Warranty |
12 months manufacturer’s* |
* Excluding wearing parts |
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8400
The National 8400 is a commercial cylinder mower, featuring an overall cutting width of 84” with three 30” power driven free-floating cutting units and is powered by a 16hp Briggs and Stratton Vanguard engine delivering a forward speed of up to 7.3mph.
| Engine |
16hp Briggs & Stratton Vanguard twin cylinder, air-cooled |
| Cutting width |
(84”) 214cm |
| Transmission |
Eaton Model 11 variable displacement hydrostatic pump |
| Speed |
7mph (F), 3mph (R) |
| Cutting units |
3 x 30” power driven units free floating to follow ground contours |
| Reel |
8” diameter, 6 or 8 alloy blades - 30” long |
| Reel bearings |
Timken tapered roller bearings on reel shaft, adjustable |
| Bed knife |
13/64” x 2” with upturned lip of alloy steel |
| Construction |
Welded tubular steel construction |
| Cutting height |
1/2” (with low cut option) to 21/4” reel to bed knife adjustment, spring loaded. Auto/spring loaded belt tensioning |
| Drive motor |
Eaton T series hydraulic motor coupled to differential input shaft |
| Tyres |
Front 16/650 x 8 - Rear 8 x 12 |
| Fuel capacity |
19 litres |
| Dimensions |
(L) 253cm, (W) 246cm |
| Dry weight |
499kgs |
| Warranty |
12 months manufacturer’s* |
* Excluding wearing parts
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Spare parts to suit Ransomes gang mowers (1)

Key No |
OEM Part No |
Description |
Our Part No |
Price £ |
1 |
- |
Cutting Cylinder 4 Blade MK10, MK11 8"Ø |
G70078 |
146.20 |
1 |
- |
Cutting Cylinder 5 Blade MK10, MK11 8"Ø |
G70004 |
146.20 |
1 |
MBC8868 |
Cutting Cylinder 6 Blade MK10, MK11 8"Ø Sportscutter |
G70003 |
154.48 |
1 |
MBE3453 |
Cutting Cylinder 8 Blade MK10, MK11 8"Ø |
G70067 |
186.30 |
- |
MBC9973 |
Cutting Cylinder 5 Blade MK12, MK13 10"Ø Magna |
G70002 |
154.48 |
- |
- |
Cutting Cylinder 6 Blade MK12, MK13 10"Ø |
G70081 |
180.70 |
2 |
MBA7024A |
Bottom Blade |
G07005 |
19.89 |
3 |
A119000 |
Bottom Blade Screw |
G60018 |
0.33 |
3 |
- |
Bottom Blade Screw Over Size |
G60024 |
0.70 |
4 |
LTC0655 |
Dust Cover |
GLTC0655 |
5.65 |
5 |
H013316 |
Oil Seal (Dowty type MK 10/12) |
GH01336 |
5.85 |
5 |
H011097 |
Oil Seal New Type for GA203604 Bearing (MK 11/13) |
GH011097 |
2.82 |
6 |
MBB2239 |
Distance Washer |
GMBB2239 |
6.37 |
7 |
A203604 |
Bearing, Cutting Cylinder (MK 11/13) |
GA203604 |
6.82 |
7 |
H001252 |
Bearing, Cutting Cylinder (2204) (MK 10/12) |
GH001252 |
12.34 |
8 |
F2002CD |
Set Screw |
GF2002CD |
0.27 |
9 |
A151008 |
Spring Washer |
GA151008 |
0.04 |
10 |
LTC4881 |
Distance Piece |
GLTC4881 |
3.24 |
11 |
LTC0009 |
Key |
GLTC0009 |
4.64 |
12 |
F1030GK |
Split Pin |
GF1030GK |
0.12 |
13 |
LTC4663 |
Nut, Castle Type |
GLTC4663 |
6.40 |
14 |
A139910 |
Lock Nut |
GA139910 |
0.50 |
15 |
F2150E |
Washer |
GF2150E |
0.07 |
16 |
MBB2206 |
Adjuster Sleeve MK11/13 |
GMBB2206 |
15.10 |
16A |
LTC4617 |
Adjuster Sleeve MK10/12 |
GLTC4617 |
11.83 |
| 17 |
LTC4618 |
Adjuster Tube All Models |
GLTC4618 |
9.58 |
18 |
MBB2212 |
Eye Bolt Adjuster Screw Long (MK 11/13) |
GMBB2212 |
13.72 |
18A |
LTC4568 |
Eye Bolt Adjuster Screw Short (MK 10/12) |
GLTC4568 |
11.89 |
19 |
LTC0629 |
Bush |
GLTC0629 |
5.20 |
20 |
H083025 |
Spring Washer (disc) |
GH083025 |
0.69 |
21 |
MBB2202 |
Pivot Bolt |
GMBB2202 |
11.66 |
22 |
MBA5402 |
Screw |
GMBA5402 |
0.27 |
23 |
.F2051AA |
Lock Nut |
GF2051AA |
0.24 |
24 |
LTC0635A |
Wood Fillet (as original) |
GLTC0635A |
17.86 |
25 |
LTC0451 |
Roll Pin |
GLTC0451 |
0.93 |
26 |
A203605 |
Bearing |
GA203605 |
5.94 |
27 |
LTC4860 |
Cork Gasket |
GLTC4860 |
4.08 |
28 |
LTC4806 |
Distance Piece |
GLTC4806 |
5.17 |
29 |
F3354CD
A189501 |
Copper Rivet |
GF3354CD |
0.37 |
30 |
LTC1313 |
Oil Seal, Leather |
GLTC1313 |
20.62 |
31 |
LTC0616 |
Gasket, Cork |
GLTC0616 |
0.98 |
32 |
F2013CJ |
Philips Head Screw |
GF2013CJ |
0.24 |
33 |
LTC4894 |
Felt Gasket |
GLTC4894 |
4.06 |
34 |
F2002AB |
Screw |
GF2002AB |
0.19 |
35 |
F2013CJ |
Phillips Head Screw |
GF2013CJ |
0.24 |
36 |
A130006 |
Nut |
GA130006 |
0.19 |
37 |
MBB2208A |
Clutch Rod |
GMBB2208A |
16.89 |
38 |
A221012 |
O Ring |
GA221012 |
0.33 |
39 |
F2051AA |
Nut |
GF2051AA |
0.24 |
40 |
F2164G |
Spring Washer |
GF2164G |
0.08 |
41 |
MBA4479 |
Level Plug |
GMBA4479 |
1.71 |
42 |
F3551EJ |
Fibre Washer |
GF3551EJ |
0.24 |
43 |
H980409 |
Clutch Spring |
GH980409 |
1.35 |
44 |
LTC0417 |
Pawl |
GLTC0417 |
19.24 |
45 |
LTC0418 |
Rivet |
GLTC0418 |
1.71 |
46 |
F2051AG |
Lock Nut |
GF2051AG |
0.61 |
47 |
F2163N |
Spring Washer |
GF2163N |
0.12 |
48 |
LTC4546A |
Main Gear |
GLTC4546A |
144.82 |
49 |
GSF3002PN |
Intermediate Gear Bush |
GF3002P |
5.58 |

Key No |
OEM Part No |
Description |
Our Part No |
Price £ |
1 |
LMSD614B |
Rear Roller Assembly, Superior Quality Completely Repairable
as Illustrated, Weighs 20kgs. |
GLMSD614B |
232.17 |
1 |
- |
Budget Roller (not illustrated) |
G71012 |
96.52 |
2 |
MBB9262 |
Shaft for Rear Roller (above LMSD614B) |
GMBB9262 |
34.42 |
3 |
A203604 |
Bearing, Roller |
GA203604 |
6.82 |
4 |
A170047 |
Circlip |
GA170047 |
0.70 |
5 |
H012003 |
Oil Seal |
GH012003 |
2.41 |
6 |
MBB9264 |
Roller End Boss |
GMBB9264 |
24.76 |
7 |
GSF254OAC |
Grease nipple |
GF2540AC |
0.69 |
8 |
A221210 |
O Ring |
GA221210 |
0.57 |
PARTS FOR OLD STYLE ROLLER |
9 |
H011090 |
Roller oil seal - light roll |
GH011090 |
6.51 |
10 |
H013316 |
Roller oil seal - light roll |
GH013316 |
5.85 |
10 |
H015012 |
Roller oil seal |
GH015012 |
2.96 |
11 |
H001543 |
Bearing - light roll |
GH001543 |
13.03 |
11 |
H001771 |
Bearing |
GH001771 |
8.64 |
- |
LS02521H |
End cap screws (3) |
GLSO2521H |
0.50 |
12 |
MBA1971 |
Spindle (Heavy roll) |
GMBA1971 |
34.15 |

Key No |
OEM Part No |
Description |
Our Part No |
Price £ |
1 |
LMSD614B |
Rear Roller Assembly, Superior Quality Completely Repairable as
Illustrated, Weighs 20kgs. |
GLMSD614B |
232.17 |
1 |
- |
Budget Roller (not illustrated) |
G71012 |
96.52 |
2 |
MBB9262 |
Shaft for Rear Roller (above LMSD614B) |
GMBB9262 |
112.04 |
3 |
LTC4742 |
Split Bush |
GLTC4742 |
5.44 |
4 |
GSF2051AG |
Lock Nut |
GF2051AG |
0.61 |
5 |
GSF2164N |
Spring Washer |
GF2164N |
0.15 |
6 |
LTC4787 |
Pivot Bush |
GLTC4787 |
10.96 |
7 |
A817028 |
Tyre 4.00 x 12 |
GA817028 |
62.02 |
7 |
- |
Inner Tube 4.00 x 12 |
GA817028T |
25.70 |
9 |
LTC4835 |
Wheel Stud, Nut & Spring Washer |
G60030 |
0.96 |
8 |
A817027 |
Tyre 4.00 x 10 (18 x 4) |
GA817027 |
67.54 |
8 |
- |
Inner Tube 4.00 x 10 |
GA817027T |
15.93 |
10 |
LMAY333 |
Locking Pin Complete Rear 4" Long (LTC3535) |
GLMAY333 |
10.96 |
11 |
LTC0136 |
Tension Spring (lifting lever) |
GLTC0136 |
5.64 |
12 |
LMAY334 |
Locking Pin Complete Front 6 1/4" (LTC 3571) |
GLMAY334 |
10.96 |
13 |
LMAY335 |
Locking Pin Complete (LTC3634) |
GLMAY335 |
10.96 |
14 |
H990009 |
Handle Grip (lifting lever) |
GH990009 |
1.44 |
15 |
LMSA916 |
Lifting Link Assembly Complete |
GLMSA916 |
24.76 |
16 |
A203604 |
Bearing, Roller |
GA203604 |
6.82 |
17 |
H012003 |
Oil Seal |
GH012003 |
2.40 |
| 18 |
A221210 |
O Ring |
GA221210 |
0.57 |
| 19 |
LTC3756 |
Coupling Frame Bush (8 Required) |
GLTC3756 |
10.96 |
20 |
A170047 |
Circlip |
GA170047 |
0.70 |
21 |
MBB9264 |
Roller End Boss |
GMBB9264 |
24.76 |
22 |
- |
Roller Repair Kit, Includes Bearings, Seals Etc to repair 1 x
GLM614B Roller As Illustrated |
GLMSD614RK |
20.48 |
23 |
LASY249 |
Steel Wheel - Magna C/W Studs |
GLASY249 |
195.88 |
23 |
LASY247 |
Steel Wheel - Sportscutter C/W Studs |
GLASY247 |
193.12 |
24 |
LTC1199 |
Tie Rod RH |
GLTC1199 |
12.66 |
24 |
LTC1200 |
Tie Rod LH |
GLTC1200 |
12.66 |
25 |
LTC4962 |
Scraper bar |
GLTC4962 |
18.24 |
26 |
LTC3536 |
Top link |
GLTC3536 |
2.80 |
27 |
GSF254OAC |
Grease nipple |
GF2540AC |
0.46 |
- |
LTC4930 |
Disc roll spindle |
GLTC4930 |
39.94 |
(1) These parts are not original. OEM part numbers are for reference purposes only. |
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