Komatsu D31PX-21 II vs. Komatsu D61PX-12 Crawler dozers Comparison

Compare available technical data for Bulldozers. Find the right details to make your decision easier.

Comparison

Highlight differences

Komatsu D31 Crawler dozers

Komatsu D61 Crawler dozers

Engine

Aspiration

Aspiration Turbocharged

Aspiration -

Net power

Net power 55.93 kw

Net power 113.35 kw

Number of cylinders

Number of cylinders 4

Number of cylinders 6

Alternator supplied amperage

Alternator supplied amperage -

Alternator supplied amperage 35 Amh

Power measured @

Power measured @ -

Power measured @ 1,850 rpm

Torque measured @

Torque measured @ -

Torque measured @ 1,300 rpm

Years

Years 1993-1996

Years 2000-2004

Market Average

Market Average AED 210,000

Market Average AED 520,000

Price

Price AED 120,000

Price AED 400,000

Blades

Blade angle

Blade angle 25 º

Dimensions

Blade height

Blade height 0.74 m

Blade height 1.16 m

Ground clearance

Ground clearance 0.4 m

Ground clearance -

Height - top of cab

Height - top of cab 2.71 m

Height - top of cab 3.14 m

Length with blade

Length with blade 4.02 m

Length with blade 5.46 m

Width over tracks

Width over tracks 2.29 m

Width over tracks 2.16 m

General

Blade width

Blade width 3.2 m

Blade width 3.87 m

Displacement

Displacement 3,932.9 cu cm

Displacement 8,300.07 cu cm

Drive type

Drive type Dual-path, hydrostatic transmission

Drive type TORQFLOW

Engine model

Engine model SAA4D102E-2

Engine model S6D114E-1

Max speed forward

Max speed forward 8.53 kph

Max speed forward 10.46 kph

Operating weight

Operating weight 7,652 kg

Operating weight 17,800 kg

Blade capacity

Blade capacity -

Blade capacity 3.82 cu m

Max torque

Max torque -

Max torque 784.06 Nm

Operating voltage

Operating voltage -

Operating voltage 24 V

Service refill capacities

Cooling fluid cap

Cooling fluid cap 26.87 liter

Cooling fluid cap 44.28 liter

Fuel cap

Fuel cap 165.03 liter

Fuel cap 315.29 liter

Hydraulic fluid cap

Hydraulic fluid cap 46.93 liter

Hydraulic fluid cap 48.07 liter

Refill capacities

Engine oil cap

Engine oil cap 12.49 liter

Engine oil cap 19.3 liter

Final drives fluid cap

Final drives fluid cap 3.41 liter

Final drives fluid cap 28.77 liter

Undercarriage

Ground contact area

Ground contact area 66,548.01 cu cm

Ground contact area 138,492.3 cu cm

Ground pressure

Ground pressure 0.29 bar

Ground pressure 0.32 bar

Number of shoes per side

Number of shoes per side 40

Number of shoes per side 46

Number of track rollers per side

Number of track rollers per side 6

Number of track rollers per side 8

Track gauge

Track gauge 1.68 m

Track gauge 2.16 m

Track pitch

Track pitch 16.51 cm

Track pitch -

Track width

Track width 60.96 cm

Track width 86.11 cm

Track length

Track length -

Track length 3.2 m

Transmission

Max speed reverse

Max speed reverse 8.53 kph

Max speed reverse 12.87 kph

Number of forward gears

Number of forward gears 3

Number of reverse gears

Number of reverse gears 3

Hydraulic system

Relief valve pressure

Relief valve pressure 206.15 bar

Relief valve pressure 206 bar

Pump type

Pump type -

Pump type Closed center, load sensing

Performance

Looking at performance technical specs and key features the Komatsu D31PX-21 II Crawler dozers excels in terms of engine power at and operating weight compared to other models like the Komatsu D61PX-12 Crawler dozers.

User rating

Owners operators and fleet managers recommend the Komatsu D31PX-21 II Crawler dozers for its high reliability and endurance in diverse applications. The same can be said about the Komatsu D61PX-12 Crawler dozers.