Komatsu GD623A-1 Motor Grader

Contents

Dimensions
Engine Details
Operational Specs
Steering
Transmission
Front Axle
Moldboard

Dimensions

Overall Length	27.89 ft in (8500 mm)
Width Over Tires	7.86 ft in (2395 mm)
Wheelbase	19.69 ft in (6000 mm)
Rear Ground Clearance	1.17 ft in (355 mm)
Tandem Axle Wheelbase	5.04 ft in (1535 mm)
Blade Base	8.54 ft in (2600 mm)
Height To Top Of Isomount Cab	11.44 ft in (3485 mm)

Engine Details

Number Of Cylinders	6
Engine Make	Komatsu
Engine Model	6D125
Power Measured @	2200 rpm
Net Power Gear 5-6	155.6 hp (116 kw)
Max Power	155.6 hp (116 kw)
Displacement	674.4 cu in (11.1 L)

Operational Specs

Std Operation Weight – Total	27998.8 lb (12700 kg)
Fuel Tank Capacity	75.3 gal (285 L)
Tire Size	13.00-24-10PR

Steering

Articulation Angle	26 degrees
Turning Radius	22.7 ft in (6.9 m)

Transmission

Number Of Gears – Forward	6
Max Speed – Forward	28.9 mph (46.5 km/h)
Max Speed – Reverse	35.3 mph (56.7 km/h)

Front Axle

Ground Clearance

1.2 ft in (355 mm)

Moldboard

Moldboard Width	12.2 ft in (3716 mm)
Moldboard Height	25.4 in (645 mm)

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