Overview
The SINOTRUK HOWO 371 6×4 Concrete Mixer Truck is a specialized heavy-duty vehicle designed for transporting and mixing concrete on construction sites. As one of the most popular models in the HOWO lineup, this 6×4 (10-wheel) configuration combines robust power, exceptional load capacity, and reliable performance, making it the preferred choice for construction professionals worldwide .
Powered by the proven WD615.47 diesel engine delivering 371 horsepower (273kW), this concrete mixer truck features the industry-recognized “golden powertrain” – WEICHAI engine, HOWO HW19710 transmission, and HC16 heavy-duty rear axles . The 6×4 drive configuration with dual rear drive axles provides superior traction and stability, making it ideal for construction sites, infrastructure projects, and ready-mix concrete delivery operations.
The vehicle features a high-quality mixing drum with capacities ranging from 8 to 16 cubic meters, constructed from high-strength steel for durability and resistance to wear. The hydraulic system enables continuous drum rotation during transport to prevent concrete solidification, while the water supply system ensures accurate and consistent water addition to achieve the desired concrete consistency .
With over one million HOWO heavy trucks sold globally, the HOWO series has established itself as a trusted workhorse in the construction industry, particularly in Africa, Southeast Asia, the Middle East, and South America .
Key Features
| Feature | Description |
| 371HP WEICHAI Engine | Powered by WD615.47 diesel engine, displacement 9.726L, maximum output 371HP (273kW), peak torque up to 1,460-2,000 N·m. Provides ample power for heavy-load operations . |
| 6×4 Drive Configuration | 10-wheel, 3-axle layout with single front steering axle and dual rear drive axles. Total of 10+1 tires (including spare), providing superior traction and stability for concrete transport . |
| HC16 Heavy-Duty Rear Axles | Dual HC16 rear axles, each rated at 16,000 kg, total load capacity of 32,000 kg. Features hub reduction (double reduction) design with differential locks . |
| 5.73 Large Gear Ratio | Rear axle gear ratio of 5.73 significantly increases wheel-end torque output, ensuring excellent climbing capability and passability in harsh construction site conditions . |
| HW19710 10-Speed Transmission | 10 forward + 2 reverse gears with twin-countershaft design. First gear ratio of 14.28 provides strong starting torque for heavy loads . |
| High-Quality Mixing Drum | Drum capacities from 8 to 16 cubic meters. Constructed from high-strength steel with 6mm thickness, featuring anti-wave baffles to reduce liquid impact during transport . |
| Italian Speed Reducer | Equipped with Bonfiglioli (Italy brand) speed reducer, providing reliable and efficient power transmission to the mixing drum . |
| Continuous Mixing Capability | During transportation, the mixing drum is kept rotating to prevent concrete solidification. Hydraulic rotation system with electronically or manually controlled speed and direction . |
| Water and Additive System | Equipped with water tank and additive tank for convenient and accurate addition of water and other additives to achieve precise mixing proportions . |
| HW76 Comfort Cab | HW76 cab with 4-point fully floating suspension, air-suspended driver seat, automatic air conditioning, electric windows, and single sleeper berth . |
| Durable Construction | Mixer body constructed with high-tensile steel for endurance and resistance to friction. Can handle a wide range of concrete slumps . |
| Multiple Emission Standards | Available in Euro II, Euro III, and Euro IV emission standards to meet diverse market requirements. Euro II is the mainstream export configuration . |
| Easy Maintenance | Designed for ease of maintenance with easy-access points for maintenance checks, lubrication, and drum cleaning systems such as high-pressure water washing . |
Specifications with Explanation
Vehicle Basic Specifications
| Parameter | Specification | Explanation |
| Drive Configuration | 6×4 / 10 Wheels / 3 Axles | Three-axle layout: one front steering axle, two rear drive axles. Provides excellent load distribution and stability . |
| Overall Dimensions (L×W×H) | 9,200-10,350 × 2,496-2,500 × 3,830-3,998 mm | Length varies by drum capacity; standard 10CBM model approx. 9.2m, 12CBM model approx. 10.35m . |
| Wheelbase | 3,200+1,350 mm / 3,600+1,350 mm / 4,325+1,350 mm | Multiple wheelbase options for different drum capacities. 4,325+1,350mm for 12CBM models . |
| Curb Weight | 12,550 - 13,000 kg | Approx. 12.5-13 tons depending on drum capacity and configuration . |
| Gross Vehicle Weight (GVW) | 31,000 kg | Maximum permissible gross vehicle weight . |
| Loading Capacity | 8 - 16 cubic meters | Effective mixing drum capacity. Standard configurations: 8CBM, 9CBM, 10CBM, 12CBM, 14CBM, 16CBM . |
| Maximum Speed | 75 - 90 km/h | Designed for mixer truck applications; speed optimized for load stability . |
Engine Specifications
| Parameter | Specification | Explanation |
| Engine Model | WD615.47 | WEICHAI inline 6-cylinder diesel engine with Steyr technology, turbocharging and intercooling . |
| Displacement | 9.726 L | Large displacement provides ample power reserve and excellent low-end torque characteristics . |
| Maximum Horsepower | 371 HP (273 kW) @ 2,200 rpm | Sufficient power output for heavy-duty mixer truck operations . |
| Maximum Torque | 1,460 - 2,000 N·m | High torque output ensures strong starting and climbing capability under full load . |
| Torque RPM Range | 1,100 - 1,600 rpm | Wide economical RPM range maintains good fuel economy under load . |
| Emission Standards | Euro II / Euro III / Euro IV | Multiple emission options available. Euro II is mainstream for export markets . |
| Fuel Type | Diesel | Standard diesel configuration. |
| Fuel System | High-pressure common rail | Advanced injection system for better atomization and lower fuel consumption . |
| Fuel Tank Capacity | 300L - 400L | Standard 300L steel or 400L aluminum tank . |
Transmission Specifications
| Parameter | Specification | Explanation |
| Transmission Model | HW19710 | Sinotruk self-developed 10-speed manual transmission with twin-countershaft design . |
| Number of Gears | 10 forward + 2 reverse | 10-speed design provides refined gear ratio distribution; first gear ratio is large for heavy-load starting . |
| First Gear Ratio | 14.28 | Large gear ratio provides strong starting torque for fully loaded mixer trucks . |
| Power Take-Off (PTO) | Direct PTO | Provides power to the hydraulic system for drum rotation . |
Chassis & Drivetrain
| Parameter | Specification | Explanation |
| Front Axle Model | HF9 / VGD95 | German MAN technology front axle with double T-cross section beam, rated at 9,000-9,500 kg . |
| Front Axle Permissible Load | 9,000 - 9,500 kg | Heavy-duty capacity for demanding applications . |
| Rear Axle Model | HC16 | Dual rear drive axles, each rated at 16,000 kg, total 32,000 kg. Features hub reduction (double reduction) design . |
| Rear Axle Permissible Load | 16,000 kg per axle (total 32,000 kg) | Strong load capacity for fully loaded mixer trucks . |
| Rear Axle Ratio | 5.73 | Large gear ratio for maximum wheel-end torque output . |
| Differential Locks | Between wheels and axles | Standard differential locks for improved traction in harsh construction site conditions . |
| Front Suspension | 9-11 leaf semi-elliptic springs with hydraulic shock absorbers and stabilizer | Heavy-duty suspension for front axle . |
| Rear Suspension | 9+6 leaf semi-elliptic springs with stabilizer | Heavy-duty suspension for rear axles; optimal load distribution . |
| Frame | U-profile parallel ladder frame | 320×90×8mm high-strength frame with cold riveted cross members and reinforced subframe . |
| Steering System | ZF 8118 / ZF 8098 power steering | German ZF technology with hydraulic power assistance for easy operation . |
| Clutch | Single-plate dry diaphragm spring, diameter 430mm, hydraulically operating with air assistance | Heavy-duty clutch with high torque capacity . |
Mixing Drum Specifications
| Parameter | Specification | Explanation |
| Drum Capacity Options | 8CBM / 9CBM / 10CBM / 12CBM / 14CBM / 16CBM | Multiple capacity options for different project requirements . |
| Drum Thickness | 6mm (standard) | High-strength steel construction for durability and wear resistance . |
| Blade Thickness | 4mm | Wear-resistant blades for efficient mixing and discharge . |
| Drum Material | High-tensile steel | Endurance and resistance to friction; handles wide range of concrete slumps . |
| Speed Reducer | Bonfiglioli (Italy brand) | High-quality Italian speed reducer for reliable power transmission . |
| Hydraulic System | Continuous rotation system | Enables drum to rotate continuously during transport to prevent concrete solidification . |
| Rotation Control | Electronically or manually controlled | Speed and direction of rotation can be adjusted for mixing and discharge . |
Tires & Brakes
| Parameter | Specification | Explanation |
| Tire Specifications | 12.00R20 / 12.00-20 | Steel-belted radial tires for durability (10+1 pieces including spare) . |
| Optional Tires | 12R22.5 / 315/80R22.5 tubeless | Lower rolling resistance for improved fuel economy . |
| Number of Tires | 10 + 1 (including spare) | Standard for 6×4 configuration . |
| Service Brake | Dual-circuit compressed air brake | Independent dual circuits ensure braking safety . |
| Parking Brake | Spring energy storage air brake | Acts on rear axles; safe and reliable . |
| Auxiliary Brake | Engine exhaust brake | Reduces brake wear on long downhill grades . |
| ABS Anti-lock System | Optional (WABCO) | Available for improved braking stability . |
Cab & Comfort Features
| Parameter | Specification | Explanation |
| Cab Type | HW76 extend cab | All steel forward control, 55° hydraulically tiltable to the front . |
| Cab Suspension | 4-point fully floating suspension with shock absorbers and transverse stabilizer | Effectively filters road vibrations; significantly reduces driver fatigue . |
| Driver Seat | Hydraulically damped adjustable air-suspended driver seat | Multi-adjustable for optimal comfort . |
| Sleeper Berth | Single sleeper | Provides rest space for shift operations . |
| Air Conditioning | Heating & ventilation system / Automatic climate control | Maintains comfortable cabin temperature . |
| Steering Wheel | Adjustable steering wheel | Customizable driving position . |
| Comfort Features | Electric windows, cigar-lighter, air horn, sun visor, stereo radio/cassette recorder | Improved operating convenience . |
| Safety Features | Safety belt, laminated windscreen with casted-in radio aerial, 2-arm windscreen wiper system with 3 speeds | Enhanced driver safety . |
| Electrical System | 24V negative ground; Starter: 24V 5.4kW; Alternator: 28V 1540W; Batteries: 2×12V 165Ah | Reliable electrical system for heavy-duty operation . |
| Seating Capacity | 2-3 persons | Standard configuration . |
Water & Additive System
| Parameter | Specification | Explanation |
| Water Tank | Integrated water tank for concrete mixing | Provides accurate water addition for proper concrete consistency . |
| Additive Tank | Optional additive tank | For adding accelerators, plasticizers, or other concrete additives . |
| Cleaning System | High-pressure water washing | For cleaning the drum after each use to prevent residual concrete hardening . |
Applications
| Application | Suitability |
| Large Construction Projects | The HOWO 371 6×4 concrete mixer truck is ideal for large-scale construction projects such as high-rise buildings, industrial complexes, and shopping centers. The 10-12CBM capacity ensures efficient concrete delivery with fewer trips . |
| Infrastructure Development | Essential for infrastructure projects including highways, bridges, tunnels, airports, and railway construction. The powerful 371HP engine and 6×4 drive configuration handle demanding site conditions . |
| Residential Construction | Widely used for housing developments, apartment complexes, and residential projects. Facilitates timely delivery and on-site mixing of concrete for foundations, columns, and slabs . |
| Road and Pavement Construction | Delivers concrete for road foundations, curbs, pavements, and structural elements. The 6×4 configuration provides excellent maneuverability on construction sites . |
| Commercial Construction | Suitable for office buildings, hotels, and commercial complexes. The reliable mixing system ensures consistent concrete quality for structural elements . |
| Ready-Mix Concrete Plants | Serves as the primary delivery vehicle for ready-mix concrete suppliers. The continuous rotation system ensures concrete remains workable during transport . |
| Export to Africa/Southeast Asia/Middle East | The HOWO 371 concrete mixer truck is a best-selling export model with proven reliability in tropical climates, high humidity, and dusty conditions. Available in Euro II/Euro III/Euro IV emission standards . |
| Local Infrastructure Projects | Also suitable for smaller-scale projects such as sidewalks, driveways, parking lots, and community centers. Provides efficient concrete delivery for local infrastructure development . |
Mixing Drum Capacity Comparison
| Drum Capacity | Typical Configuration | Suitable Applications |
| 8 CBM | 6×4 chassis, standard configuration | Small to medium construction projects, residential developments |
| 9 CBM | 6×4 chassis, balanced configuration | General construction, mixed-use applications |
| 10 CBM | 6×4 chassis, most common configuration | Standard for most construction projects, optimal balance of capacity and maneuverability |
| 12 CBM | 6×4 chassis with extended wheelbase | Large-scale infrastructure projects, high-volume concrete delivery |
| 14-16 CBM | 8×4 chassis (for larger models) | Major infrastructure projects, mining, heavy construction |
Note: 10 CBM is the most commonly exported configuration for the HOWO 371 6×4 concrete mixer truck .
Working Principle
The HOWO Concrete Mixer Truck’s working principle involves several key components and processes :
Chassis: Built on a robust 6×4 chassis with three axles, providing stability and load-bearing capacity for heavy concrete loads .
Mixing Drum: Features a large cylindrical drum mounted on the rear, made of high-strength steel capable of rotating continuously .
Loading: Concrete is loaded at a batching plant or construction site via conveyor belt, concrete pump, or manual loading .
Water and Additive Addition: Water and additives (accelerators, plasticizers) can be added to achieve desired concrete properties .
Mixing: The drum rotates in one direction (hydraulically controlled), lifting and tumbling materials for thorough mixing .
Transportation: The drum continues rotating during transport to prevent segregation or setting. The powerful engine provides necessary power and torque .
Discharge: Upon reaching the destination, the drum rotates at controlled speed to discharge concrete through a rear chute .
Cleaning: After each use, the drum is cleaned with pressurized water to prevent residual concrete hardening .
Buying Guide
1. Select Configuration Based on Application
| Application | Recommended Configuration | Explanation |
| General Construction / Ready-Mix Delivery | 10CBM drum + 6×4 chassis + Euro II/III emission + 12.00R20 tires | Most common configuration; optimal balance of capacity and maneuverability. Proven reliability |
| Large Infrastructure Projects | 12CBM drum + 4,325+1,350mm wheelbase + 400L fuel tank + reinforced chassis | Maximum capacity for high-volume concrete delivery; extended range |
| Residential / Small Projects | 8-9CBM drum + standard configuration | Adequate capacity for smaller sites; lower initial cost |
| Export to Africa/Southeast Asia | Euro II emission + 10CBM drum + LHD/RHD optional + 12.00R20 steel tires | Adapts to export market requirements; high parts commonality; proven in tropical climates |
2. Mixing Drum Capacity Selection
| Drum Capacity | Suitable Applications | Price Range (New) |
| 8 CBM | Small projects, residential construction | Lower cost |
| 9 CBM | General construction | Moderate |
| 10 CBM | Most common, versatile for all applications | SG$74,685 (~$55,000 USD) |
| 12 CBM | Large infrastructure, high-volume projects | Higher cost |
| 14-16 CBM | Specialized heavy construction, 8×4 chassis | Contact supplier |
3. Emission Standard Selection
| Emission Standard | Applicable Markets | Description |
| Euro IV | Export markets with stricter environmental requirements | Available on newer models; cleaner emissions |
| Euro III | Southeast Asia, Africa, Middle East | Mainstream export configuration; meets most market requirements |
| Euro II | Markets with lenient emission requirements | Most common export configuration; cost-effective; cannot be registered in China |
Important Note: Confirm destination country environmental policies before purchase.
4. Tire Selection
| Tire Type | Specifications | Features | Applicable Scenarios |
| Steel-Belted Radial | 12.00R20 | High wear resistance, good puncture resistance | Construction sites, rough roads |
| Tubeless Radial | 12R22.5 | Lower rolling resistance, better fuel economy | Paved roads, urban delivery |
| Wide Base Tubeless | 315/80R22.5 | Large contact area, good stability | Heavy-load road transport |
5. New vs. Used Vehicle Purchase Considerations
New Vehicle Purchase:
Full warranty coverage (6-12 months for main parts)
Customizable configurations, latest emission standards available
Production lead time: 15-30 working days
Price range: $38,000 - $55,000 USD for new 10CBM models
Payment methods: T/T, L/C, Western Union
Used Vehicle Purchase:
Lower initial investment: Used HOWO 371 concrete mixer trucks available from $15,000 - $30,000 USD
Used units often equipped with Euro II emission standards
High market presence in Africa, Southeast Asia; ample parts supply
Used Vehicle Inspection Checklist:
Engine start condition, idle stability, exhaust smoke, unusual noises
Transmission shift smoothness, PTO operation
Rear axle gear clearance, driving noise, differential lock function
Frame deformation, welding repair marks
Drum rotation, hydraulic system operation, oil leakage
Drum thickness wear, blade condition
Water pump operation, tank condition
Tire wear uniformity
Maintenance records and mileage verification
6. Export Purchase Special Considerations
HOWO 371 concrete mixer trucks are best-selling export models with established sales networks in Africa, Southeast Asia, the Middle East, and South America
Driving Position: Left-hand drive (standard) or right-hand drive available; confirm with supplier
Understand destination country certification requirements (CCC, ISO, SONCAP, GCC available)
Confirm packaging and shipping methods :
RoRo (roll-on/roll-off): Fast delivery, truck drives on/off ship
Bulk vessel: Lower cost for multiple units
Container shipping: For smaller orders
Flat rack shipping: For oversize equipment
Shipping Preparation: All trucks polished with wax before shipping; anti-corrosion treatment
Logo Customization: Vehicle logo and color customization available (MOQ 1 unit)
Minimum Order Quantity: 1 unit
Delivery & Certification
Delivery Information
| Delivery Type | Details |
| Domestic Delivery (China) | Typically ready for pickup within 15-30 business days after order confirmation. Customized configurations may require longer lead times . |
| Export Delivery | FOB (Qingdao Port, Shanghai Port, Tianjin Port, China main ports) or CIF terms supported. CFR, EXW also available . |
| Shipping Methods | RoRo (roll-on/roll-off) – fast delivery; bulk vessel – lower cost; container shipping; flat rack shipping . |
| Packaging | Standard export packaging: polished with wax + anti-corrosion treatment (nude packaging). Complete export documentation provided . |
| Lead Time | Export orders typically require 15-30 working days preparation depending on order quantity and configuration . |
| Minimum Order Quantity | 1 unit . |
| Supply Capacity | Up to 1,000 units per month . |
Certifications
| Certification Type | Details |
| Domestic Certification | CCC (China Compulsory Certification) compliant for domestic models . |
| International Certification Support | Certification assistance available based on destination country requirements: |
| - ISO 9001 Quality Management System Certification |
| - SONCAP Certification (Nigeria and select African countries) |
| - GCC Certification (Gulf Cooperation Council countries) |
| - BV / SGS Third-Party Inspection Certification |
| - EPA, EEC, RoHS, CE (select markets) |
| Emission Compliance | Euro II, Euro III, Euro IV options available with corresponding compliance documentation . |
Warranty & Service Information
| Service Type | Details |
| Main Parts Warranty | 6-12 months for main parts (engine, axle, gearbox, mixer body) |
| Spare Parts Support | Lifelong parts support; original spare parts available for all quick-wear components |
| Technical Support | Video technical support, online support, field installation (optional) |
| Mechanical Test Report | Available |
| Video Outgoing Inspection | Available |
