The Sinotruk Howo 400HP 6x4 Heavy Tipper Truck is engineered for mining contractors and earthmoving operators who require extra horsepower and torque reserve to conquer steep open-pit quarry gradients while carrying maximum legal payloads. Upgraded with Sinotruk's D12.40 400HP (294 kW) diesel engine delivering 1,820 Nm of torque, this 10-wheel dump truck powers an 18 to 20 cubic meter (CBM) high-tensile steel rock body, providing 15% faster uphill cycle times than standard 371HP models.

1. Technical Engineering Specifications
| Engineering Parameter | Technical Specification Standard |
|---|
| Drive Configuration | 6x4 (Front Steer Axle + Tandem Dual Drive Hub Reduction Axles) |
| Engine Output & Rating | Sinotruk D12.40, 11.596L Turbocharged Diesel, 400 HP (294 kW) @ 2,000 RPM |
| Maximum Engine Torque | 1,820 Nm @ 1,100 – 1,500 RPM |
| Transmission Gearbox | Sinotruk HW19710 manual (10 forward gears + 2 reverse) |
| Rear Drive Axles | HC16 Heavy Cast Steel Hub Reduction Axles (Ratio 5.73, 2 x 16,000 kg) |
| Front Axle | HF9 heavy drop-forged I-beam axle with hydraulic power assist (9,000 kg) |
| Cargo Body Volume | 5,400 x 2,300 x 1,500 mm (Approx. 18.6 to 20 CBM) |
| Cargo Body Steel Material | High-tensile manganese steel Q345B: Floor 8 mm, Side Walls 6 mm |
| Tires | 12.00R20 all-steel heavy mining radial tires (10 + 1 spare tire) |
2. High-Horsepower Gradeability Advantages
- 15% Faster Cycle Times: The 400HP D12 engine powers up steep 25% quarry exit ramps in higher gears, completing more payload trips per shift.
- Extreme Driveline Strength: Heavy-duty HW19710 transmission and HC16 planetary axles handle the 1,820 Nm torque output with zero gear teeth chipping.