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Current number of specifications

Komatsu 930E-4 Rock Truck

Selected Dimensions

A. Overall Length51.2 ft in15600 mm
C. Overall Height24.2 ft in7370 mm
D. Wheelbase20.8 ft in6350 mm


Electric Drive
AlternatorGTA - 41
ControlAC Torque Control System
Motorised WheelsGDY106 Induction Traction Motors
Maximum speed (km/h)​64.5
Dual Fan Main Blower340 m3/min 12,000 cfm
Electrical System
Alternator24 volt, 140 amp
Lighting24 volt
Cranking motorsTwo/24 volt
Suspension System
Capacity Struck223.7 yd3171 m3
Heaped (2:1, SAE)276 yd3211 m3
StructureFlat floor configuration
Weight66936.7 lb30362 kg
Canopy sheet5 mm 0.19'' 690 mPa 100,000 psi
Front sheet9 mm 0.35'' 1379 mPa 200,000 psi tensile strength steel
Side sheet8 mm 0.31'' 1379 mPa 200,000 psi tensile strength stee
Floor sheet16 mm 0.63'' 1379 mPa 200,000 psi tensile strength steel (two-piece)
Payload643286.8 lb291790 kg
Loading Height20.9 ft in6.4 m
Number of Cylinders16
Power Measured @1900 rpm
Displacement3661.4 cu in60 L
Fuel TypeDiesel
Weight21182 lb9608 kg
Horse Power: SAE J19952700.8 hp2014 kw
Horse Power: ISO 9249 / SAE J13492550.6 hp1902 kw
Operating cycle4-cycle
Service Brake TypeOil-cooled, hydraulic-actuated, multiple disc brakes at each wheel.
Parking Brake TypeMultiple disc, spring-applied, hydraulically-released, integral wet disc park brake Rated to hold on ±15% grade at maximum gross vehicle weight.
Emergency brakesAutomatically applied prior to hydraulic system pressure dropping below level required to meet secondary stopping requirements.
​Wheel brake locksSwitch-activated​
​Electric dynamic retarder (max.)4026
Max. service apply pressure (kPa)2500 psi17237 kPa
Total friction area per brake (cm2)97025
Fuel Tank1199.9 gal4542 L
Cooling system156.9 gal594 L
Hydraulic system350 gal1325 L
Crankcase74 gal280 L
Motor gear box25.1 gal95 L
Gross Weight1106663.2 lb501974 kg
Empty Weight463383 lb210187 kg
Weight Distribution Front - empty47 %
Weight Distribution Rear - empty53 %
Weight Distribution Front - loaded33 %
Weight Distribution Rear - loaded67 %
Standard tire53/80 R63
Hydraulic System
Hoist cylinderTwo 3-stage dual-acting outbound cylinders and internal cushion valve, over-centre damping.
Relief pressureHoist and brake cooling- 17237 kPa 2,500 psi Steering and brake-25759 kPa 4,000 psi
Hoist timePower-up loaded: 21 sec; Power-down: 23 sec; Float-down empty:24 sec
Turning circle diameter (SAE)97.7 ft in29.8 m
Reservoir250 gal946.4 L
FiltrationIn-line replaceable elements
SuctionSingle, full flow, 100 mesh
Hoist and steeringDual, in-line, high pressure
PumpsTwo pumps, single package, end of alternator
Turning Radius49.9 ft in15200 mm
Overall Length51.2 ft in15600 mm
Overall Height24.2 ft in7370 mm
Wheelbase20.8 ft in6350 mm
Width Over Tires-Front24.7 ft in7520 mm
Width Over Tires-Rear27.3 ft in8330 mm