Engineering a heavy transport fleet requires a prime mover that balances robust structural integrity with high tractive performance, and the Sinotruk Howo 6x4 tractor truck delivers dependable heavy-haul capacity for demanding logistics and rugged construction environments. Built around a high-strength parallel ladder frame, this heavy truck integrates a proven powertrain combination featuring heavy-duty diesel engines, multi-speed synchronized transmissions, and planetary hub-reduction rear axles, providing fleet operators with the precise wheel-end torque, gradeability, and load-bearing endurance required for long-distance highway freight and severe off-road transport.
Technical Specifications
|
Specification Parameter |
Technical Value / Configuration |
|
Gross Combination Weight (GCW) |
Up to 70,000 kg – 90,000 kg (application dependent) |
|
Wheelbase & Axle Spacing |
3,200 mm + 1,400 mm configuration |
|
Chassis Frame Section |
300 mm × 80 mm with 8 mm inner reinforcement |
|
Front Steering Axle Capacity |
9,000 kg heavy-duty forged I-beam axle |
|
Rear Tandem Axle Capacity |
16,000 kg × 2 planetary hub-reduction axles |
|
Suspension Architecture |
Front 9-leaf / Rear 12-leaf semi-elliptic springs |
|
Engine Displacement Range |
9.7 Liters to 12.4 Liters heavy-duty diesel |
|
Horsepower Output |
371 HP to 420 HP rated power options |
|
Peak Torque Window |
1,500 Nm – 2,100 Nm (1,100–1,400 rpm) |
|
Transmission Gearbox |
10 forward speeds, 2 reverse mechanical manual |
|
Tire Size & Rim Format |
12.00R20 or 315/80R22.5 radial commercial tires |
|
Fuel Tank Volume |
400 L to 600 L aluminum alloy configuration |
Cab Architecture & Operator Environment
Suspension Isolation: Full-floating air-suspension cab mounts isolate chassis vibration across unpaved terrain.
Driver Ergonomics: Pneumatic adjustable seating, integrated sleeper berth, and ergonomic dashboard switch layout.
Steering Control: ZF hydraulic power steering system delivering precise feedback and a turning circle diameter under 22 meters.
Braking Systems: Dual-circuit pneumatic drum brakes combined with a standard engine exhaust brake mechanism.
Powertrain & Axle Engineering
Combustion Efficiency: High-pressure common rail fuel injection paired with selective catalytic reduction for stable thermal performance.
Torque Transmission: Double countershaft mechanical transmission designed for high thermal and mechanical shock resistance.
Traction Control: Inter-wheel and inter-axle differential locks integrated within heavy tandem planetary reduction housings.
Electrical Foundation: 24-volt commercial architecture powered by heavy-duty alternators and maintenance-free batteries.
Operational Applications
Long-Haul Logistics: Maintains sustained highway cruising speeds when paired with multi-axle box vans and curtain-side trailers.
Construction Infrastructure: Transports heavy precast concrete and construction aggregates across graded earthworks and unpaved site access roads.
Mining & Quarry Logistics: Hauls heavy dump semi-trailers and flatbed transport rigs loaded with raw minerals under high-stress conditions.
Efficiency & Thermal Management
Powertrain Matching: Final drive axle ratios synchronized with engine torque curves to reduce fuel consumption during heavy acceleration.
Aerodynamic Profiles: Sleek cab exterior configuration equipped with integrated roof air deflectors to minimize high-speed drag.
Cooling Capacity: High-core-volume radiator and viscous fan clutch assembly prevent thermal throttling during continuous grade-climbing.
Maintenance & Serviceability
Service Access: Hydraulic tiltable cab mechanism provides direct vertical workspace access to core engine components.
Service Filters: Spin-on lubrication filters and primary-secondary water separators simplify routine filter change intervals.
Chassis Longevity: Replaceable wear bushings, heavy-duty clutch components, and sealed wiring harnesses extend service cycles.
Shipping & Export Logistics
Transport Modes: Configured for roll-on/roll-off vessel shipping, flat-rack container loading, or complete knockdown crating.
Corrosion Protection: Marine-grade wax coatings on exposed metal and sealed electrical connectors protect against ocean humidity.
Documentation Support: Complete export documentation packages provided, including commercial invoices, packing lists, and VIN inspection records.
Frequently Asked Questions
Q: What is the maximum towing capacity?
A: Engineered for gross combination weights up to 90,000 kg depending on local legal limits and axle selection.
Q: What steering configurations are available?
A: Both left-hand drive and right-hand drive steering positions are available to match regional traffic regulations.
Q: What rear axles are used for heavy loads?
A: Heavy-duty planetary hub-reduction tandem axles with integrated differential locks are installed as standard equipment.
Q: What fuel tank sizes can be specified?
A: Aluminum fuel tanks can be selected in capacities ranging from 400 liters up to 600 liters.
Q: How are spare parts supported globally?
A: Full part numbers, component interchange catalogs, and direct replacement hardware availability are provided for fleet operators.
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