Categories ↠ Crawler Dozers ↠ Komatsu D31EX-21

Komatsu D31EX-21 Crawler Dozer

Category: Crawler Dozers ➔
Manufacturer: Komatsu ➔
Model: D31EX-21 ➔

Dimensions

Ground Clearance	1 ft (0 m)
Height - Top of Cab	9 ft (3 m)
Length of Track on Ground	7 ft (2 m)
Length w/ Blade	13 ft (4 m)
Width Over Tracks	6 ft (2 m)

Engine

Aspiration	turbocharged and air-to-air aftercooled
Displacement	240 cu in (3,933 cu cm)
Engine Model	SAA4D102E-2
Net Power	75 hp (56 kw)

Hydraulic System

Relief Valve Pressure

2990 psi

Operating Specifications

Cooling System Fluid Capacity	7 gal (27 l)
Engine Oil Capacity	3 gal (12 l)
Final Drives Fluid Capacity	1 gal (3 l)
Fuel Capacity	44 gal (165 l)
Hydraulic Fluid Capacity	12 gal (47 l)
Operating Weight	15,720 lbs (7,130 kg)

Standard Blade

Blade Angle (both directions)

25 degrees

Transmission

Max Speed - Forward	5 mph (9 kph)
Max Speed - Reverse	5 mph (9 kph)
Number of Forward Gears	3
Number of Reverse Gears	3
Transmission Type	dual-path, hydrostatic transmission

Undercarriage

Ground Contact Area	2,496 cu in (40,902 cu cm)
Ground Pressure	6.3 psi
Number of Shoes per Side	38
Number of Track Rollers per Side	5
Standard Shoe Size	16 in (41 cm)
Track Gauge	5 ft (1 m)
Track Pitch	57 in (145 cm)

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