
SINOTRUK 8x4 Dump Truck
EditSINOTRUK HOWO 8x4 Tipper Truck 371HP 420HP for Heavy Construction
Model: HOWO 420
Powerful SINOTRUK HOWO 8x4 tipper truck available in 371HP and 420HP configurations. Designed for heavy construction, mining, and infrastructure projects requiring maximum power and payload capacity.
Key Technical Specifications
Loading Capacity
30-35 Ton
Axle Configuration
8x4
Model
HOWO 420
Certification
ISO 9001 & CE
Commercial Information
Minimum Order:1 unit
Delivery Time:20-30 working days after deposit
Payment Terms:T/T
Warranty:12 months or 100,000 km
Product Overview
The SINOTRUK HOWO 8x4 Tipper Truck in 371HP and 420HP configurations represents the ultimate heavy-duty solution for construction and mining operations that demand maximum power and payload. The 420HP variant features the WD612.42 engine — a 12-liter inline 6-cylinder turbo diesel producing 420 HP at 2200 rpm and 1900 Nm of torque.
The 12-liter engine provides exceptional low-end torque for climbing steep haul roads with full loads. Combined with the HW19710 10-speed transmission and double HC16 rear axles, this truck delivers unmatched pulling power in the 8x4 category.
The cargo box is available in 25-30CBM configurations depending on material density. For heavy materials like rock and ore, the 25CBM reinforced box with 20mm NM400 wear-resistant steel is recommended. For lighter materials like sand and coal, the 30CBM standard box maximizes volume efficiency.
The chassis features a reinforced 10mm thick frame with additional gussets at high-stress points. The 8x4 suspension uses a 12+12 leaf spring configuration on each rear axle with reinforced spring brackets and equalizing beams. The front axle uses 10-layer parabolic springs for improved ride quality.
Safety features include WABCO EBS electronic braking with ABS, engine exhaust brake, and optional retarder for sustained braking on long downhill grades. The HW76 cabin provides a comfortable working environment with air conditioning, heated seats, and panoramic visibility.
Complete Technical Specifications
Technical Specifications
| Engine (371HP) | WD615.47, 9.726L, 6-cylinder turbo diesel |
| Engine (420HP) | WD612.42, 11.96L, 6-cylinder turbo diesel |
| Engine Power (371HP) | 371 HP (274 kW) at 2200 rpm |
| Engine Power (420HP) | 420 HP (309 kW) at 2200 rpm |
| Max Torque (371HP) | 1500 Nm at 1100-1600 rpm |
| Max Torque (420HP) | 1900 Nm at 1200-1500 rpm |
| Transmission | HW19710, 10F+2R manual |
| Drive System | 8x4, four-axle configuration |
| Front Axle | HF9, 9000 kg capacity |
| Rear Axles | 2× HC16, 16000 kg each, double reduction |
| Cargo Box (Heavy) | 6500×2300×1700 mm, 25CBM, NM400 20mm steel |
| Cargo Box (Volume) | 7200×2300×1800 mm, 30CBM, Q345 18mm steel |
| Lifting System | HYVA dual HC-198 cylinders, front ejection |
| Suspension (Front) | 10 parabolic leaf springs |
| Suspension (Rear) | 12+12 leaf springs per rear axle |
| Tires | 12.00R20 wire tires, 10+2 (12 total) |
| Braking System | WABCO EBS + ABS, engine exhaust brake, optional retarder |
| Fuel Tank | 300L aluminum alloy |
| Cabin | HW76, with A/C and heated seat |
| Overall Dimensions | 9745×2496×3550 mm |
| Wheelbase | 1800+3200+1350 mm |
| Curb Weight | 17000 kg |
| GVW | 50000 kg |
| Emission Standard | Euro 2 / Euro 3 |
| Max Speed | 70 km/h |
Frequently Asked Questions (FAQ)
Q1When should I choose the 420HP over the 371HP?
Choose the 420HP when operating on steep gradients (over 15%), at high altitude (above 3000m), or when consistently hauling maximum payload. The additional 49 HP and 400 Nm torque provide significantly better climbing performance and reduce strain on the drivetrain.
Q2What is the maximum legal payload in typical African markets?
In most African countries, the legal GVW for an 8x4 truck ranges from 40,000 to 50,000 kg depending on local regulations. With a curb weight of approximately 17,000 kg, the legal payload ranges from 23 to 33 tons. Check specific regulations in your country.
Q3Can this truck be equipped with a meiller tipping system?
Yes, we can configure the truck with Meiller, HYVA, or other international brand hydraulic systems based on your preference and local parts availability. Meiller systems are popular in European-standard markets while HYVA is widely used in Africa and Asia.
Q4What maintenance is required for the double rear axle?
The double rear axle requires differential oil changes every 20,000 km for each axle, wheel bearing adjustment every 50,000 km, and brake shoe inspection every 10,000 km. The equalizing beams require greasing every 5,000 km. Full maintenance schedule is provided with delivery.
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