Construction Machinery: Wheel-Mounted Dozer Komatsu

Model Transmission type Forward gears number Reverse gears number Maximum forward speed Maximum reverse gear Manufacturer
WD900-3 3 3 28 km/h - 17.4 mile / h 28.3 km/h - 17.6 mile / h Komatsu
WD600-3 powershift transmission, planetary gear 4 4 36.2 km/h - 22.5 mile / h 40 km/h - 24.9 mile / h Komatsu
WD600-1 planetary gear 4 4 35 km/h - 21.7 mile / h 37.9 km/h - 23.6 mile / h Komatsu
WD420-3 4 4 32.8 km/h - 20.4 mile / h 33.9 km/h - 21.1 mile / h Komatsu
D61PX-15 planetary gear , gear shifting 3 3 9.4 km/h - 3.3 mile / h 11.2 km/h - 4.3 mile / h Komatsu