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Komatsu GD621R-1 Motor Grader

The Komatsu GD621R-1 Motor Grader is a powerful and versatile machine designed for a variety of grading and maintenance tasks. With an engine displacement of 396.1 cubic inches and a net power of 155.6 horsepower, this grader offers efficient performance. It features a sturdy blade base of 8.6 feet and a moldboard width of 12.2 feet, allowing for precise and effective grading operations. With a comfortable Isomount Cab and a top speed of 27.8 mph, the GD621R-1 is a reliable choice for any grading project.


See all Komatsu GD621R-1s for sale

Dimensions

Blade Base8.60 ft (2.62 m)
Height to Top of Isomount Cab11.50 ft (3.51 m)
Overall Length27.50 ft (8.38 m)
Rear Ground Clearance1.20 ft (0.37 m)
Tandem Axle Wheelbase5.10 ft (1.55 m)
Wheelbase19.70 ft (6.00 m)
Width Over Tires7.90 ft (2.41 m)

Engine

Displacement396.10 cu in (6,490.93 cu cm)
Engine ModelS6D105
Max Power155.60 hp (116.03 kw)
Net Power Gear 5-6155.60 hp (116.03 kw)
Number of Cylinders6
Power Measured @2500 rpm

Front Axle

Ground Clearance1.20 ft (0.37 m)

Moldboard

Moldboard Height25.40 in (64.52 cm)
Moldboard Width12.20 ft (3.72 m)

Operating Specifications

Fuel Capacity75.30 gal (285.01 l)
Std Operation Weight - Total27,998.80 lbs (12,700.06 kg)
Tire Size13.00-24-10PR

Steering System

Turning Radius34.20 ft (10.42 m)

Transmission

Max Speed - Forward27.80 mph (44.74 kph)
Max Speed - Reverse33.90 mph (54.56 kph)
Number of Gears - Forward6
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