Home > SINOTRUK-HOWO 7 Light Chassis for Concrete Mixer Trucks — 3–5 m³ City Truck

SINOTRUK-HOWO 7 Light Chassis for Concrete Mixer Trucks — 3–5 m³ City Truck

The SINOTRUK-HOWO 7 (ZZ5128F3915) is a specialized light-duty commercial chassis engineered for compact 3–5 m³ concrete mixer trucks. Designed specifically for urban logistics and restricted-access construction sites, this 4×2 platform utilizes a highly efficient 102 kW Yuchai YC4D140-33 diesel engine compliant with Euro II emission standards. With a short 3,900 mm wheelbase and an overall vehicle length of just 6,755 mm, it delivers exceptional maneuverability in narrow municipal streets and historic centers where mainstream 6×4 or 8×4 trucks cannot operate. Supporting a rated payload of 7,500 to 12,500 kg, the HOWO 7 chassis maintains a total laden weight under 11,500 kg, ensuring strict compliance with stringent inner-city axle-load limits and bridge weight restrictions. Manufactured and tested at the TRUEMAX facility, it integrates seamlessly with the CTM3 mixer upper part to provide a highly economical and agile concrete delivery solution.

1. Ultra-Compact Footprint — An overall length of 6,755 mm and a 3,900 mm wheelbase allow navigation through tight urban alleys and constrained site gates.

2. Optimized 4×2 Drivetrain — A lightweight two-axle configuration minimizes operational costs, tire wear, and drivetrain maintenance compared to heavy-duty multi-axle models.

3. 102 kW Yuchai Engine — The 4-cylinder YC4D140-33 engine delivers an excellent power-to-weight ratio for 11.5-tonne GVW operations, ensuring superior fuel economy.

4. Euro II Emission Compliance — Features a reliable, easy-to-maintain powertrain perfectly suited for emerging market regulations without the premium cost of higher emission tiers.

5. Strict GVW Compliance — Maintains a total laden weight under 11,500 kg, permitting legal transit over weight-restricted municipal bridges and historical roads.

6. Seamless CTM Integration — Engineered specifically to carry 3–5 m³ concrete mixer drums, providing an integrated sub-frame for optimal center-of-gravity distribution.

7. Ergonomic Operator Cab — Supplied with standard air-suspended seating and climate control to mitigate driver fatigue during continuous urban transit cycles.

8. Maximum ROI — Low capital expenditure and reduced operational overhead make it the definitive choice for startup RMC fleets and specialized short-haul contracts.

Get a Quick Quote

Technial Parameters

Item	Unit	SINOTRUK-HOWO 7 (Light)
Vehicle Identification
Vehicle Model	/	SINOTRUK-HOWO 7
Chassis Model	/	ZZ5128F3915
Engine & Emission
Engine Model	/	YC4D140-33 (Yuchai)
Engine Power	kW	102
Tail Gas Exhaust Standard	/	EURO II
Drive & Load
Drive Type	/	4×2
Rated Load	kg	7,500 – 12,500
Max. Travel Speed	km/h	90
Wheels & Wheelbase
Tyre Type	/	9.00 R20 × 7
Wheelbase	mm	3,900 (single span)
Drum Compatibility & Dimensions
Applicable to Concrete Truck Mixer	m³	3 – 5
Overall Dimension (L × W × H)	mm	6755 × 2440 × 2800
Total Weight (with mixer drum)	kg	8,755 – 11,500
Cab & Customisation
Cab	/	Seat with air bag, air conditioner
Customisation	/	Other chassis can be customised on request

Dimensions & Working Range

The HOWO 7 chassis is supplied to TRUEMAX as a bare chassis-cab, upon which the CTM3 upper part (drum, sub-frame, hydraulic system, water tank, and discharge chute) is fully integrated at the TRUEMAX factory. The overall vehicle dimensions with the 3 m³ drum fitted are 6,755 × 2,440 × 2,800 mm. The narrow 2.44 m width and low 2.8 m clearance height are critical logistical parameters that allow this vehicle to operate safely on routes with severe road-vehicle dimension limits. This dimensional profile must be verified against batching-plant loading clearances and specific site access conditions.

Applications

The HOWO 7 is a specialized light commercial chassis engineered to maximize maneuverability and operational economics for 3–5 m³ urban concrete deliveries.

Urban and Downtown RMC Transit

Urban & Downtown Logistics: Navigates narrow municipal streets and tight intersections for inner-city ready-mix delivery, such as restaurant fit-outs or residential repairs.

Restricted-Access Infrastructure

Restricted-Access Infrastructure: Operates safely on minor roads, historic centers, and bridges with strict gross vehicle weight (GVW) limits where 12 m³ trucks are prohibited.

Small-Volume Pours

Small-Volume Pours: Ideal for localized civil works requiring 3–5 m³ of concrete per trip, preventing the logistical inefficiency of dispatching half-empty heavy-duty trucks.

Emerging Market Fleets

Emerging Market Fleets: Provides a cost-effective, low-maintenance entry platform for RMC operators in Euro II regulatory environments.

FAQs

How does the HOWO 7 differ from the mainstream SINOTRUK chassis?

The HOWO 7 (4×2, 102 kW) is a specialized light commercial platform engineered for 3–5 m³ urban deliveries with an emphasis on compactness and low total cost of ownership. In contrast, the mainstream SINOTRUK (6×4 or 8×4, 340–380 kW) is a heavy-duty platform designed for 6–14 m³ mass structural pours. Selection is dictated by site access geometry and required per-trip volume.

What mixer drum sizes are compatible with the HOWO 7 chassis?

The HOWO 7 chassis is exclusively engineered to carry the TRUEMAX CTM3 and similar 3–5 m³ upper parts, aligning strictly with its 7,500–12,500 kg payload rating. Drums exceeding 5 m³ require the heavier 6×4 mainstream SINOTRUK platform.

Is the 102 kW Yuchai engine sufficient for a fully loaded mixer truck?

Yes. The 102 kW (140 HP) output provides an optimal power-to-weight ratio for a maximum laden weight of 11,500 kg on relatively flat urban and suburban routes. It is purposely not over-specified, thereby maximizing fuel economy during stop-and-go city transit.

Does the chassis comply with Euro III, Euro IV, or Euro V emission standards?

The standard configuration detailed in this specification is Euro II. For operational zones mandating Euro III, IV, or V emissions, TRUEMAX requires the specification of alternative chassis platforms (such as the HOWO N7 or mainstream SINOTRUK series) which offer advanced exhaust after-treatment systems.

What is the technical significance of the "9.00 R20 × 7" tyre specification?

It indicates the tire sizing and total wheel count. "9.00 R20" signifies the use of narrower, smaller-diameter truck tires matched to lighter loads, compared to the 11.00/12.00 R20 tires on heavy-duty models. "× 7" denotes six primary running wheels (two single-wheel steer on the front axle, four dual-wheel drive on the rear axle) plus one full-size spare.

Does this vehicle correspond to a "3-yard" concrete truck classification?

Yes. Under North American volumetric classifications, a "3-yard" (approx. 2.3 m³) or "5-yard" (approx. 3.8 m³) capacity perfectly matches the operational envelope of the HOWO 7 equipped with a CTM3 drum. In metric terms, this is classified as a 3 m³ to 5 m³ concrete mixer truck.

Can TRUEMAX customize the chassis or provide alternative brands?

Yes. TRUEMAX accommodates requests for customized transmission ratios, fuel capacities, and electrical systems. Furthermore, TRUEMAX can supply alternative light-duty chassis brands (e.g., FAW, Dongfeng, Shacman) upon specific procurement requests.

What after-sales infrastructure supports the HOWO 7 truck assembly?

TRUEMAX provides unified whole-vehicle support, including pre-sale consultation, commissioning, and a 24-hour remote intelligent diagnostic service. The Yuchai engine is independently backed by Yuchai's extensive global commercial service network.

Strategic Positioning in the TRUEMAX Portfolio

TRUEMAX offers three distinct SINOTRUK chassis tiers to address specific concrete delivery profiles. The HOWO 7 represents the light-duty tier (3–5 m³, 4×2, Euro II). The mainstream SINOTRUK chassis (6×4 or 8×4, Euro II–V) covers the standard 6–14 m³ commercial requirement. The flagship SINOTRUK-HOWO N7 (8×4, Euro V) is reserved for high-speed, long-distance 12 m³ deliveries. This tiered architecture ensures that fleet operators can procure a vehicle precisely matched to their volumetric and topographical constraints.

Urban Logistics and Compact Fleet Operations

The modern ready-mix concrete market is dominated by large 8–12 m³ trucks, but substantial sectors of urban infrastructure remain inaccessible to these vehicles due to strict municipal weight limits, narrow historical streets, and restrictive gate clearances. The HOWO 7 chassis fills this critical logistical gap. It is an engineered solution that prioritizes access geometry and operational economics over gross hourly output, ensuring efficient concrete placement in highly constrained environments.

Payload Matching and Sub-Frame Integration

A TRUEMAX concrete mixer is an integrated synergy of lower (chassis) and upper (drum, hydraulics, sub-frame) components. The upper part is dictated by the required payload, after which the chassis is matched to guarantee legal GVW compliance and kinetic stability. For 3–5 m³ operations, the HOWO 7 chassis is the optimal foundation. For greater volumes, operators must scale to the CTM6–CTM14 upper parts mounted on mainstream heavy-duty platforms.