The Database tracks the largest mining dozers in operation at surface mines around the world. The current active mining dozer population for units with net power ratings of 350kW (500 hp) and above is 14,300 machines with just over 18,500 in total, counting those that are inactive or decommissioned. These are grouped into the size classes listed below. The primary manufacturers of the largest mining tractors are Caterpillar, Komatsu and Liebherr.

mining dozer

ACTIVE POPULATION: 14,300

SIZE CLASSES: 350-450, 550-650, 750+

(net power rating, kW)

Types: Wheel Dozers, Crawler Dozers

CRAWLER DOZERS

Caterpillar

Size Class

Models

350-450

D10, D10L, D10N, D10R, D10T

550-650

D11N, D11R, D11R-CD, D11T, D11T-CD

750+

Fiat-Allis

Size Class

Models

350-450

41B

550-650

750+

Komatsu

Size Class

Models

350-450

D355A, D355A-1, D375A, D375A1-3, D375A-2, D375A-3, D375A-3A, D375A-5, D375A-5D, D375A-5EO, D375A-5R, D375A-6, D375A-6R, D455A, TD40

550-650

D475A, D475A-2, D475A-3, D475A-3A, D475A-5, D475A-5A, D475A-5EO, D475A-5SD, D475ASD-5EO

750+

D575A, D575A-2, D575A-3, D575A-3A

Liebherr

Size Class

Models

350-450

PR 776

550-650

750+

WHEEL DOZERS

Caterpillar

(including Tiger)

Size Class

Models

350-450

590, 834, 834B, 834G, 834H, 834K, 844, 844H

550-650

690, 690B, 690D, 790G, 854G, 854K

750+

Komatsu

(Joy Global/P&H Letourneau)

Size Class

Models

350-450

WD600-3, WD600-3A, WD600-6

550-650

WD900-3, WD900-3A, WD900-6, D950

750+

Range of tire sizes for Wheel Dozers:

OTR Tire Sizes:

35/65-33, 45/65-39, 45/65-45