John deere 644K vs. Cat 938M Wheel loaders Comparison

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

Comparison

Highlight differences

John Deere 644 Wheel loaders

644K

Cat 938 Wheel loaders

938M

Loader

Breakout force

Breakout force 150.81 kN

Breakout force 135 kN

Years

Years 2015-2019

Years 2013-2025

Market Average

Market Average AED 850,000

Market Average AED 590,000

Price

Price AED 690,000

Price AED 280,000

General

Max dump height

Max dump height 2,896 mm

Max dump height 3,220 mm

Tire size

Tire size 23.5 R25

Tire size -

Engine model

Engine model John Deere PowerTech PSS 6090

Engine model Cat C7.1

Transmission type

Transmission type Powershift

Transmission type -

Bucket capacity

Bucket capacity 3.06 cu m

Bucket capacity 3.6 cu m

Operating weight

Operating weight 18,682 kg

Operating weight 18,200 kg

Bucket width

Bucket width -

Bucket width 3,000 mm

Lifting capacity

Lifting capacity -

Lifting capacity 6,800 kg

Max speed forward

Max speed forward -

Max speed forward 40 kph

Tipping load

Tipping load -

Tipping load 13,600 kg

Service refill capacities

Hydraulic fluid cap

Hydraulic fluid cap 105.22 liter

Hydraulic fluid cap 140 liter

Transmission fluid cap

Transmission fluid cap 23.09 liter

Transmission fluid cap -

Front axle fluid capacity

Front axle fluid capacity 22.33 liter

Front axle fluid capacity -

Fuel cap

Fuel cap 397.05 liter

Fuel cap 325 liter

Rear axle fluid capacity

Rear axle fluid capacity 22.33 liter

Rear axle fluid capacity -

Dimensions

Height - top of cab

Height - top of cab 3.44 m

Height - top of cab 3.35 m

Transport length

Transport length 8 m

Transport length -

Turning radius

Turning radius 13.29 m

Turning radius -

Wheelbase

Wheelbase 3.26 m

Wheelbase 3 m

Transport width

Transport width 2 m

Transport width -

Operating specifications

Max dump reach

Max dump reach 1,615.44 mm

Max dump reach 1,160 mm

Brake system

Brake system Wet Multi Disc - Transmission

Brake system -

Rack back angle

Rack back angle -

Rack back angle 45 º

Engine

Alternator supplied amperage

Alternator supplied amperage 130 Amh

Alternator supplied amperage -

Displacement

Displacement 9,001.43 cu cm

Displacement 7,100 cu cm

Emissions

Emissions Tier 4

Emissions -

Gross power

Gross power 173.01 kw

Gross power 158.09 kw

Max torque

Max torque 1,062 Nm

Max torque 1,000 Nm

Torque rise

Torque rise 56 %

Torque rise -

Hydraulic system

Pump type

Pump type Piston

Pump type Piston pump

Pump flow cap

Pump flow cap 297.12 lpm

Pump flow cap 230 lpm

Relief valve pressure

Relief valve pressure 250.97 bar

Relief valve pressure 234.42 bar

Performance

Looking at performance technical specs and key features the John deere 644K Wheel loaders excels in terms of engine power at and operating weight 18682 compared to other models like the Cat 938M Wheel loaders.

User rating

Owners operators and fleet managers recommend the John deere 644K Wheel loaders for its high reliability and endurance in diverse applications. The same can be said about the Cat 938M Wheel loaders.