Komatsu GD825A-2 Motor Grader

Dimensions

Overall Length 32.85 ft in (10010 mm)
Width Over Tires 10.86 ft in (3310 mm)
Wheelbase 23.4 ft in (7132.32 mm)
Tandem Axle Wheelbase 6 ft in (1840 mm)
Blade Base 10.18 ft in (3100 mm)
Height To Top Of Isomount Cab 11.67 ft in (3550 mm)
Minimum Turning Radius 25.92 ft in (7.9 m)
Articulation Angle 25 degrees

Engine Details

Number Of Cylinders 6
Piston Displacement 408.3 cu in (6.7 L)
Engine Make Komatsu
Engine Model S6D140E

Frame

Front Frame Structure – Height 1.4 ft in (400 mm)
Front Frame Structure – Width 1.2 ft in (350 mm)

Engine Details

Power Measured @ 2100 rpm
Max Power 280 hp (208.8 kw)
Net Power Gears 7-8 280 hp (208.8 kw)
Displacement 359 cu in (5.9 L)
Aspiration Turbocharged Diesel engine

Capacities

Fuel Tank – Diesel 132.1 gal (500 L)
Hydraulic Tank 21.2 gal (80 L)
Transmission 6.7 gal (25 L)
Final Drive 16.7 gal (63 L)
Tandem Housing 50.2 gal (190 L)
Engine Oil 10.1 gal (38 L)
Coolant 15.4 gal (58 L)

Operational Specs

Hydraulic System Fluid Capacity 21.1 gal (80 L)
Max Operation Weight – Front Axle 17570 lb (7910 kg)
Max Operation Weight – Rear Axle 40680 lb (18450 kg)
Oil System Fluid Capacity 10.1 gal (38 L)
Max Operation Weight – Total 58250 lb (26420 kg)
Fuel Tank Capacity 132.1 gal (500 L)
Cooling System Fluid Capacity 15.3 gal (58 L)
Transmission Fluid Capacity 6.6 gal (25 L)
Tandem Case Fluid Capacity (Each) 50.2 gal (190 L)
Tire Size 23.5 X 25-12PR (L3) tires
Operating Voltage 24 V
Alternator Supplied Amperage 50 amps

Steering

Articulation Angle 25 degrees
Turning Radius 26 ft in (7.9 m)

Transmission

Transmission Type komatsu HYDROSHIFT Transmission
Number Of Gears – Forward 8
Number Of Gears – Reverse 8
Max Speed – Forward 27.9 mph (44.9 km/h)
Max Speed – Reverse 29.8 mph (47.9 km/h)

Weights

Operating Weight – On Rear Wheels 40521 lb (18380 kg)
Total Operating Weight 58091.9 lb (26350 kg)
Operating Weight – On Front Wheels 17570.9 lb (7970 kg)

Front Axle

Wheel Lean 14.5 degrees
Oscillation – Total 32 degrees
Ground Clearance 2.3 ft in (680 mm)

Blade

Maximum Shoulder Reach Outside Rear Tyres (Frame Straight): Right 7.9 ft in (2400 mm)
Maximum Shoulder Reach Outside Rear Tyres (Frame Straight): Left 7.9 ft in (2400 mm)
Maximum Lift Above Ground 1.4 ft in (420 mm)
Blade Tip Angle 49° forward, 5 ° reverse

Moldboard

Moldboard Width 16.2 ft in (4928 mm)
Moldboard Height 31 in (800 mm)
Moldboard Thickness 1 in (25 mm)
Max Depth Of Cut 19 in (480 mm)
Blade Pull At Max Weight 30250 lb (13720 kg)

Hydraulic System

Pump Type Double-acting piston-type hydraulic cylinders
Relief Valve Pressure 3560 psi (24545.4 kPa)

Circle

Diameter 70 in (1775 mm)
Rotation 360 degrees
Max Reach Outside Tires – Left 94 in (2400 mm)
Max Reach Outside Tires – Right 94 in (2400 mm)
Max Lift Above Ground 19 in (490 mm)
Blade Tip Angle – Front 49 degrees
Blade Tip Angle – Rear 5 degrees
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