Komatsu's WX04B is a groundbreaking battery-electric load haul dump (LHD) designed for narrow vein underground hard rock mining. As the only 4-tonne machine with a ground-level battery swap, zero underground diesel emissions and an onboard battery management system (BTMS), the WX04B sets a new standard for efficiency, productivity and sustainability in underground mining operations.
| Tramming capacity | 4 000 kg |
| Hydraulic breakout force lift | 11 361 kg |
| Hydraulic breakout force tilt | 9 189 kg |
| SAE breakout force | 10 165 kg |
| SAE static tipping load | 18 370 kg |
| Bucket | 1.9 m3 |
| Tramming capacity | 8,800 lbs. |
| Hydraulic breakout force lift | 25,047 lbs. |
| Hydraulic breakout force tilt | 20,258 lbs. |
| SAE breakout force | 22,410 lbs. |
| SAE static tipping load | 40,499 lbs. |
| Bucket | 2.5 yd3 |
| Operating weight | 17 500 kg |
| Total loaded weight | 21 500 kg |
| Axle weight without load | |
| Front axle | 6 255 kg |
| Rear axle | 11 245 kg |
| Axle weight with load | |
| Front axle | 12 655 kg |
| Rear axle | 8 845 kg |
| Operating weight | 38,600 lbs. |
| Total loaded weight | 47,400 lbs. |
| Axle weight without load | |
| Front axle | 13,800 lbs. |
| Rear axle | 24,800 lbs. |
| Axle weight with load | |
| Front axle | 27,900 lbs. |
| Rear axle | 19,500 lbs. |
| Grade | 0 | 5 | 10 | 12 | 15 | 20 |
| 27.1 | 27.1 | 25.1 | 23 | 21.5 | 16.3 |
| Grade | 0 | 5 | 10 | 12 | 15 | 20 |
| 27.1 | 27.1 | 25.1 | 23 | 21.5 | 16.3 |
| Grade | 0 | 5 | 10 | 12 | 15 | 20 |
| 27.1 | 27.1 | 23 | 19.8 | 18.0 | 12.8 |
| Grade | 0 | 5 | 10 | 12 | 15 | 20 |
| 27.1 | 27.1 | 23 | 19.8 | 18.0 | 12.8 |
| Dump time | 1.7 s |
| Rollback time (from dumped) | 3.1 s |
| Raising time | 3.6 s |
| Lowering time | 2.7 s |
| Dump time | 1.7 s |
| Rollback time (from dumped) | 3.1 s |
| Raising time | 3.6 s |
| Lowering time | 2.7 s |
| Turning time, right | 2.7 s |
| Turning time, left | 3.4 s |
| Turning time, right | 2.7 s |
| Turning time, left | 3.4 s |
| System operating voltage | 24V |
| Batteries | 2 x 12V |
| Driving and working lights | 2 forward/3 rear |
| System operating voltage | 24V |
| Batteries | 2 x 12V |
| Driving and working lights | 2 forward/3 rear |
| Digital vehicle control system — CANbus | Multicolor touch display |
| Digital vehicle control system — CANbus | Multicolor touch display |
| Front and rear frames | Welded steel box construction |
| Material | ASTM A572 GR50 (CSA G40.21-50W) |
| Front and rear frames | Welded steel box construction |
| Material | ASTM A572 GR50 (CSA G40.21-50W) |
| Motors | ||
| Traction | 177 kW continuous |
|
| Auxiliary | 170 kW continuous | |
| Transmission | High/low drop box | |
| Forward/reverse speeds | 2 forward/2 reverse | |
| Axles | ||
| Front and rear | Dana 14D | |
| Differentials, front | Limited slip | |
| Differentials, rear | No spin | |
| Brakes | Electric motor regen + SAHR brakes | |
| Differential, front | Limited slip | |
| Differential, rear | No-spin | |
| Rear axle oscillation angle | +/- 5 deg | |
| Tires | 12.00 X 24 BIAS L5S* |
|
| * As applications vary, local tire supplier should be consulted for appropriate tire. | ||
| Motors | ||
| Traction | 177 kW continuous |
|
| Auxiliary | 170 kW continuous | |
| Transmission | High/low drop box | |
| Forward/reverse speeds | 2 forward/2 reverse | |
| Axles | ||
| Front and rear | Dana 14D | |
| Differentials, front | Limited slip | |
| Differentials, rear | No spin | |
| Brakes | Electric motor regen + SAHR brakes | |
| Differential, front | Limited slip | |
| Differential, rear | No-spin | |
| Rear axle oscillation angle | +/- 5 deg | |
| Tires | 12.00 X 24 BIAS L5S* |
|
| * As applications vary, local tire supplier should be consulted for appropriate tire. | ||
| Chemistry | Li-ion NMC |
| Nominal voltage | 660V |
| Capacity | 165 kW |
| Number of modules | 6 per battery + 1 tramming |
| Cell monitoring | Onboard BMS |
| Cell cooling | Liquid |
| Thermal management | Integrated passive BTMS |
| Ambient operating temperature | -20°C to 46°C |
| Changing interface | CCS2 |
| Change source | External charger |
| Charge time | < 2 hours |
| Battery change | Ground level, self swap |
| Chemistry | Li-ion NMC |
| Nominal voltage | 660V |
| Capacity | 165 kW |
| Number of modules | 6 per battery + 1 tramming |
| Cell monitoring | Onboard BMS |
| Cell cooling | Liquid |
| Thermal management | Integrated passive BTMS |
| Ambient operating temperature | -20°C to 46°C |
| Changing interface | CCS2 |
| Change source | External charger |
| Charge time | < 2 hours |
| Battery change | Ground level, self swap |
| Open canopy cabin (standard) |
Open canopy |
| Enclosed cabin (optional) | Climate controlled air conditioner Cabin air pressurizer Noise suppression 3 — Emergency exit windows 3 — Window wipers & washers |
| Open canopy cabin (standard) |
Open canopy |
| Enclosed cabin (optional) | Climate controlled air conditioner Cabin air pressurizer Noise suppression 3 — Emergency exit windows 3 — Window wipers & washers |
| Variable displacement piston pumps with load sensing open loop circuit design for optimal efficiency. Proportional hydraulic valve with closed center spool with priority steering, shock valves and load sense relief valves. | |
| Bucket/boom control |
Single, 2-axis proportional electric joystick |
|
Steering control |
Single, 1-axis proportional electric joystick |
| Bucket dump cylinder | One (1), double acting, single stage, Z-link |
| Boom hoist cylinder | Two (2), double acting, single stage |
| Steer cylinder | One (1), double acting, single stage |
| Hydraulic tank volumes | 131 L |
| Variable displacement piston pumps with load sensing open loop circuit design for optimal efficiency. Proportional hydraulic valve with closed center spool with priority steering, shock valves and load sense relief valves. | |
| Bucket/boom control |
Single, 2-axis proportional electric joystick |
|
Steering control |
Single, 1-axis proportional electric joystick |
| Bucket dump cylinder | One (1), double acting, single stage, Z-link |
| Boom hoist cylinder | Two (2), double acting, single stage |
| Steer cylinder | One (1), double acting, single stage |
| Hydraulic tank volumes | 34.6 US gal |
Reman and overhaul
Cut O&O costs without sacrificing quality. Backed by industry-leading warranty, Reman is a sustainable and cost-effective option that give components new life.