Made in India for tough roads, is the Mahindra RoadMaster G90 summed up in a few words. After intense research into the road construction scenario in India and its neighboring markets, we realized that while many large and expensive motor graders from international companies are available in the market, none of them are made keeping in mind the bhutan requirements where more than 90% of the projects are of small and medium roads. This is where the RoadMaster G90 comes into the picture for such intermediary applications. It is also relevant for the applications as railways, industrial plot leveling among others.
PARAMETERS | ROADMASTER | |||||
Variants | Grader G90 | |||||
Engine | Model | Mahindra DITEC 4915 IA BSIII CEV | ||||
Form of Air Aspiration | Turbocharged | |||||
No of Cylinders | 4 | |||||
Bore | 96mm | |||||
Stroke | 122 mm | |||||
Displacement | 3532cc | |||||
High idle rpm | 2400 +/- 50 rpm | |||||
Low ideal rpm | 850 +/- 50 rpm | |||||
Cooling system | water cooled | |||||
Type of fuel | Diesel | |||||
Gross horse power | 66.9 kW (91 HP) @ 2200 +/- 50rpm | |||||
Peak gross torque | 345Nm @ 1400-1600 rpm | |||||
Electrical system voltage | 12 V | |||||
Operating Specification | Gross vehicle weight | 8350 +/- 167 kg | ||||
FAW | 2800 +/- 56 kg | |||||
RAW | 5500 +/- 110 kg | |||||
Speed @ gear (kmph) | Forward | Reverse | ||||
1st | 4.5 to 6 | 5.5 to 7 | ||||
2nd | 7.5 to 9.0 | 9.0 to 10.5 | ||||
3rd | 16.5 to 18.5 | |||||
4th | 33.0 to 36.5 | |||||
Turning radius outside tyre R1 | 10 m | |||||
Steering angle inner wheel | 45 degrees | |||||
Steering angle outer wheel | 32 degrees | |||||
Moldboard | Base Length of MB | 3000 +/- 15 mm | ||||
Thickness of Moldboard | 16 +/- 0.5 mm | |||||
Blade Height | H19 | 516 +/- 3 mm | ||||
Cutting Edge (blade) | Standard Length of cutting edge w/o side extension (optional) | W8 | 2600 mm {3 piece cutting edge} {1100 + 1100 + 400} |
|||
Standard length of cutting edge with side extension |
W8 | 3000 +/- 15 mm {4 piece cutting edge} {1100 + 1100 + 400+ 400} |
||||
Width of Cutting Edge | 152 +/- 2 mm | |||||
Cutting Edge (blade) | 16 +/- 0.5 mm | |||||
End Bit | Width | 200 +/- 1 mm | ||||
Thickness | 16 +/- 0.5 mm | |||||
Blade Pull force kN | 27 | |||||
Blade Down force kN | 27 | |||||
Dimension (mm) | Distance between mid & rear axle | L9 | 1850 mm | |||
Distance between front middle axle | A | 4300 mm | ||||
Wheel Base | L3 | 5225 mm | ||||
Distance- Front axle to Moldboard Blade base |
L12 | 1691 mm | ||||
Transport length | L1 | 8578 mm | ||||
Ground Clearance below front axle beam | H18 | 528 mm | ||||
Minimum Ground Clearance | H4 | 467 mm | ||||
Max vehicle height | H1 | 3290 mm | ||||
Track width- Front | W3F | 1674 mm | ||||
Track Width Rear | W3R | 1654 mm | ||||
Width- outside front tires | W1F | 2021 mm | ||||
Width- outside rear tires | W1R | 2001 mm | ||||
Width- Transport (Over rear counter weight) |
WW7 | 2080 mm | ||||
Blade Range | Circle rotation angle | AB | 50 +/-1.5 deg from transverse of vehicle | |||
Circle drive | Hydraulic cylinders with no end mechanical stoppers | |||||
Blade side shift (LH/ RH) | 513 +/-2.6 mm | |||||
Blade tilt angle/ Bank cut angle (LH/RH) at ground level measured on drawbar | 25.6deg/ 20deg] +/- 2 | |||||
Blade pitch angle at ground line | A11 | Forward 40deg +/- 2 Backward 15deg +/- 2 | ||||
Blade lift at normal blade pitch angle | 395 +/- 25* | |||||
Max blade cut depth below ground at nominal blade angle | 300 +/- 25* | |||||
Attachment oscillation angle | Upward 10 +/-2 deg Downward 15 +/-2 deg |
|||||
Transmission | Model Name | Carraro 4WDTransmission | ||||
Gear Ratios | Forward / Reverse | |||||
1st | 5.603 / 4.643 | |||||
2nd | 3.481/2.884 | |||||
3rd | 1.585 / 1.313 | |||||
4th | 0.793 / 0.657 | |||||
Torque converter ratio | 2.64 | |||||
Front Axle | Type | None Driven, Steerable Central Pivoted | ||||
Loading Capacity(TON) | 8 | |||||
Middle Axle | Type | Driven, Non Steerable, Rigid | ||||
Reduction ratio, Differential | 2.75 | |||||
Reduction Wheel end | 6.932 | |||||
Total Reduction Ratio | 19.04 | |||||
Rear Axle | Type | Driven, Non Steerable, Central Pivoted+/-5 deg Oscillation angle | ||||
Reduction ratio, Differential | 2.75 | |||||
Reduction Wheel end | 6.932 | |||||
Total Reduction Ratio | 19.04 | |||||
Tyres and Wheels | Tyre Spec | 13 x 24-12 PR | ||||
SLR | 600 +/- 10 | |||||
DLR | 603 +/- 10 | |||||
Wheel Rim Size | 9×24 | |||||
Tyre Pressure | Front / Middle / Rear | 44 +/-2psi | ||||
Brakes | Service Brake type | Foot operated hydraulically actuated oil immersed disc in middle axle | ||||
Parking brake type | Hand operated mechanically actuated oil immersed disc in middle axle | |||||
Streeing | Type | Power Steering | ||||
steering Valve | Load sensing with priority valve 200 cc | |||||
Other feature | Emergency steering in case of pump failure | |||||
Electrical | System Voltage | 12 V | ||||
Battery Rating | 12 V, 100 AH | |||||
Alternator type | 12 V, 90Amp | |||||
Hydraulics | System | Open Centre | ||||
Pump Type | Fixed Displacement Tandem Gear Pump 26. cc + 26 cc |
|||||
Max Pump Flow rate | 54 litres@ 2200 rpm | |||||
Max Working pressure | 200 +/- 5 bar | |||||
Refill qty | 50 litres | |||||
System Capacity | 60 litres | |||||
Other Feature | Load Holding with pressure relief valves for lift and sensing cylinder | |||||
Services Capacities | Hydraulic tank | 50 litres @ 2000 hrs | ||||
Fuel tank | 85 litres | |||||
Engine coolant | 17 litres @ 1000 hrs | |||||
Engine oil | 13.5 litres @ 500 hrs | |||||
Transmission | 16 litres @ 1000 hrs | |||||
Middle axle or Rear axle (Differential) |
14.5 litres @ 1500 hrs for each axle | |||||
Middle Axle or Rear Axle (Final Drive) |
1.5 litres (On each wheel side) @ 1500 hrs | |||||
Optional Fitments | Ripper | 5 tyne | ||||
Dozer | 1.98 meter Width |