Home > SINOTRUK Chassis for Concrete Mixer Trucks — 6–14 m³ Workhorse

SINOTRUK Chassis for Concrete Mixer Trucks — 6–14 m³ Workhorse

The mainstream SINOTRUK chassis series forms the structural foundation for TRUEMAX’s core range of concrete mixer trucks. Utilizing the proven ZZ1257N3841W/B1 (6×4) and ZZ1317N3261W/B1 (8×4) platforms, these heavy-duty chassis are engineered to transport CTM mixing drums with rated payloads from 6 m³ up to 14 m³. Power is delivered via the highly reliable Weichai WP10 engine series, configurable to either 340 kW or 380 kW outputs, providing exceptional low-end torque essential for navigating challenging construction site topographies under maximum load. To ensure global regulatory compliance, the powertrain is available in emission standards ranging from Euro II to Euro V. Capable of supporting gross vehicle weights (GVW) up to 50,000 kg and sustaining highway speeds of 90 km/h, the SINOTRUK chassis offers fleet operators an optimal balance of heavy payload capacity, logistical efficiency, and unified maintenance architecture.

1. Weichai WP10 Powertrain — Available in 340 kW and 380 kW variants, delivering high torque at low RPMs for superior traction on unpaved gradients.

2. 6×4 and 8×4 Drivetrains — The 6×4 configuration optimizes maneuverability for 6–10 m³ payloads, while the 8×4 layout maximizes load distribution for 10–14 m³ drums.

3. Global Emission Compliance — Configurable from Euro II for emerging markets to Euro V for strictly regulated operational zones.

4. 50,000 kg Load Capacity — The reinforced 8×4 chassis safely accommodates up to 14 m³ of wet concrete, adhering to heavy-duty axle load requirements.

5. Highway Transit Capability — Engineered for a sustained maximum speed of 90 km/h, minimizing transit times between batching plants and remote sites.

6. Universal CTM Integration — Standardized sub-frame architecture ensures seamless mounting of TRUEMAX CTM6 through CTM14 mixing drums.

7. Ergonomic Operator Cab — Equipped with air-suspended seating and integrated climate control to reduce driver fatigue during extended operational shifts.

8. Modular Customization — Supports extensive localized modifications, including alternate axle ratios, fuel capacities, and regional homologation packages.

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Technial Parameters

Item	Unit	SINOTRUK Chassis (Workhorse)
Vehicle Identification
Vehicle Model	/	SINOTRUK
Chassis Model	/	ZZ1257N3841W/B1, ZZ1317N3261W/B1
Engine & Emission
Engine Model	/	WP10.340E22 / WP10.380E22
Engine Power	kW	340 / 380
Tail Gas Exhaust Standard	/	EURO II – EURO V
Drive & Load
Drive Type	/	6×4 / 8×4
Rated Load	kg	15,000 – 50,000
Max. Travel Speed	km/h	90
Wheels & Wheelbase
Tyre Type	/	11.00 – 12.00 R20
Wheelbase	mm	3825+1350 / 1800+3200+1400
Drum Compatibility & Dimensions
Applicable to Concrete Truck Mixer	m³	6 – 10 / 10 – 14
Overall Dimension (L × W × H)	mm	9020 × 2496 × 3835 / 10611 × 2496 × 3990
Total Weight (with mixer drum)	kg	12,500 – 16,000
Cab & Customisation
Cab	/	Seat with air bag, air conditioner
Customisation	/	Other chassis can be customised on request

Dimensions & Working Range

The SINOTRUK lower part is supplied as a bare chassis-cab configuration, engineered for integration with the designated TRUEMAX CTM upper part. Overall dimensional footprint varies strictly by axle configuration and drum payload: a 6×4 chassis mounting a 6 m³ drum occupies 9,020 × 2,496 × 3,835 mm, while an 8×4 chassis carrying a 14 m³ drum expands to 10,611 × 2,496 × 3,990 mm. Total laden weight spans from 12,500 kg to 16,000 kg. Fleet managers must evaluate these geometric parameters against batching plant loading clearances and site-specific turning radii.

Applications

The mainstream SINOTRUK chassis series is engineered to provide a robust, high-payload foundation for commercial concrete mixer trucks, accommodating 6 to 14 m³ drum capacities across diverse operational environments.

Commercial RMC Fleet Operations

Commercial Fleets: Standardizing on the SINOTRUK platform allows RMC operators to deploy a unified 6–14 m³ fleet, simplifying spare parts inventory and driver training protocols.

Heavy Civil Infrastructure Projects

Heavy Infrastructure: The 8×4 chassis with the 380 kW engine provides the traction and axle-load distribution required for continuous, high-volume delivery on major highway and bridge projects.

Highway and Expressway Construction

Urban Logistics: The 6×4 chassis paired with 6–10 m³ drums offers the agility necessary to navigate congested city streets and access constrained building sites without violating municipal weight limits.

Cross-Regional Concrete Logistics

International Export: Comprehensive Euro II to Euro V emission options ensure the chassis can be legally homologated and operated across diverse global regulatory environments.

FAQs

How does the mainstream SINOTRUK chassis differ from other TRUEMAX chassis offerings?

The mainstream SINOTRUK chassis (ZZ1257/ZZ1317) is the core workhorse, accommodating 6–14 m³ payloads. TRUEMAX also offers the light-duty HOWO 7 (4×2) specifically for 3–5 m³ urban transit, and the flagship HOWO N7 (8×4, Euro V, 440 kW) engineered for high-speed, long-distance 12 m³ highway deliveries.

What criteria should dictate the choice between the 340 kW and 380 kW engines?

The 340 kW WP10 engine is optimized for 6–10 m³ payloads operating on relatively flat topography, providing excellent fuel economy. The 380 kW variant generates higher low-end torque, making it essential for 10–14 m³ payloads, mountainous terrain, or off-road site conditions requiring maximum tractive effort.

When should fleet operators specify a 6×4 versus an 8×4 drivetrain?

The 6×4 configuration (ZZ1257) is recommended for 6–10 m³ drums to minimize kerb weight and maximize maneuverability in confined spaces. The 8×4 configuration (ZZ1317) is mandatory for 10–14 m³ drums to safely distribute gross vehicle weights up to 50,000 kg and comply with strict heavy-duty axle load regulations.

Which TRUEMAX mixer drums are structurally compatible with this chassis?

The chassis is fully compatible with TRUEMAX CTM6, CTM8, CTM9, CTM10, CTM12, and CTM14 upper parts. The 6×4 chassis generally integrates with CTM6–CTM10 units, while the 8×4 chassis is reserved for CTM10–CTM14 high-capacity units.

Can TRUEMAX provide alternative commercial chassis brands?

Yes. While SINOTRUK serves as the standard, highly reliable default option, TRUEMAX routinely engineers upper-part integrations with other premium commercial chassis brands, including FAW, Shacman, and Dongfeng, based on specific client procurement requirements.

Does the chassis meet stringent international emission standards?

Yes. The SINOTRUK powertrain is highly configurable, offering complete exhaust after-treatment systems calibrated for Euro II through Euro V compliance, ensuring legal operation in both emerging and heavily regulated markets.

What after-sales infrastructure supports the SINOTRUK chassis globally?

As China's largest heavy commercial vehicle manufacturer, SINOTRUK (and its engine partner Weichai) maintains an extensive global service network. This ensures rapid spare parts availability and localized technical support across the vast majority of TRUEMAX export territories.

Chassis Engineering and Payload Optimization

In the concrete transit sector, the chassis dictates the legal and operational limits of the vehicle. The mainstream SINOTRUK platform provides the structural rigidity necessary to handle the severe dynamic shifting of wet concrete during transit. By offering both 6×4 and 8×4 configurations within the same vehicle family, fleet managers can precisely match axle-load distributions to regional highway regulations while maximizing the geometric volume of the mounted CTM drum.

Why SINOTRUK is the Industry Standard

SINOTRUK is the dominant chassis platform for export concrete mixers due to its unparalleled mechanical reliability and the global saturation of the Weichai WP10 engine service network. For ready-mix concrete operations where vehicle downtime directly halts continuous pouring schedules, the ability to secure immediate localized servicing and spare parts for the powertrain is a critical operational advantage over localized or niche chassis brands.