SPECIFICATIONS

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  • Engine

    Model Komatsu SAA4D95LE-5
    Type 4-cycle, water-cooled, direct injection
    Number of Cylinders 4
    bore x stroke 95 mm x 115 mm
    Horsepower, Gross - SAE J1995 60 kW / 80 HP
    Horsepower, Net - ISO 9249 / SAE J1349 58 kW / 78 HP
    Rated RPM 2200
    Piston displacement 3.26 ltr
    Fan drive type Hydraulic
    Lubrication system Gear pump
    Emissions certification EPA Tier 3

  • Hydraulic System

    Type Closed-centre load sensing system
    Maximum pump flow 99 ltr/min
    Relief valve setting 27.4 bar
    Hydraulic cylinder No. of cylinders x bore
    Blade lift 2 x 75 mm
    Blade tilt 1 x 90 mm
    Blade angle 2 x 80 mm

  • Hydrostatic Transmission

    Type  Dual-path, hydrostatic transmission System
    Travel motor Variable capacity
    Travel speeds  
    Forward 0 - 8.5 km/h
    Reverse 0 - 8.5 km/h

     

  • Final drives

    Type Two-stage planetary gear

  • Steering system

    Minimum turning radius 2.0 - 2.2 m

  • Undercarriage

    Suspension Rigid type
    Track roller frame Monocoque, large section, durable construction
    Rollers and idlers Lubricated track rollers
    Number of track rollers (each side) 6
    Type of shoes Single grouser
    Number of shoes (each side) 40
    Shoe width 400 - 600 mm

  • Coolant & Lubricant capacity

    Coolant 18 ltr
    Fuel tank 195 ltr
    Engine oil 11 ltr
    Hydraulic tank 60 ltr
    Final drive (each side) 3.5 ltr
    DEF tank None

  • Weights

    Operating weight 7,670 - 8,540 kg

D31EX-22 Dozers

With hydrostatic drive and a high-visibility forward-sloping bonnet design, our 8.765 tonne D31EX-22 dozer is a versatile, efficient machine suitable for a range of applications across civil construction, local government and other sectors. As with all our dozers, key components are designed and manufactured by Komatsu to work together in an integrated package. And it comes standard with our KOMTRAX remote monitoring and location system, backed by our NZ-wide service and support network.

  • 58 kW / 78 HP
    ENGINE POWER
  • 7,670 kg
    OPERATING WEIGHT
  • 1.61 m³
    BLADE CAPACITY

D31EX-22 Dozers

High Productivity and Low Fuel Consumption

This engine is EPA Tier 3 emissions certified; "ecot3" - ecology and economy combine with Komatsu technology to create a high performance engine without sacrificing power or productivity. The powerful Komatsu engine makes this dozer fuel efficient and the logical choice in both grading and dozing operations.

Comfortable Ride with Cab Damper Mounting

The cab mount uses a cab damper system that provides excellent shock and vibration absorption which conventional mounting systems are unable to match. The silicon oil filled cab damper mount helps to isolate the cab from the machine body, suppressing vibration and providing a quiet, comfortable operating environment.

Modular Design

The design goals behind this dozer was to manufacture a more durable machine. This was achieved by reducing component complexity and using a strong modular design for increase serviceability and durability.

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