Every construction, haulage, and conversion specialist knows the struggle –
A 4×2 chassis handles light equipment well enough, but once you mount heavy superstructures, it starts to float, sink, and struggle on inclines. The rear axle can’t cope, the frame twists and creaks under the load. Swap to a different chassis? Then you worry about wheelbase mismatches, wrong configurations, and awkward fits.
The Chengli 6×4 Chassis is purpose-built for heavy-duty conversions.
This is not a standard chassis – this is a triple-axle, tandem rear-drive heavy-duty platform. Mixer drums, dump bodies, fire water tanks, large sanitation boxes, truck-mounted cranes – mount whatever you need. The chassis takes it, stays stable, and pulls strong.
The Heart – Plenty of Power
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Engine: HM615.47, 371 HP
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Fuel injection: Mechanical direct injection (inline pump) – tolerant of lower-grade fuel, simple to service, and trusted by every construction crew. More reliable than electronic injection in harsh conditions.
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Transmission: 19710, 10-speed
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PTO: 50 Direct-mount PTO – delivers power directly to superstructure equipment. Hydraulic pumps, water pumps, cylinders, winches – it drives them all.
371 HP mated to a 10-speed box – climbs grades with confidence, cruises economically on highways. And with mechanical direct injection, any local mechanic can fix it – no diagnostic computers, no waiting for factory technicians.
The Frame – Built to Carry Mountains
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Frame: Double-layer (8+8/300) – two 8 mm steel plates laminated to 16 mm total thickness. Heavy loads – no twisting, no bending, no cracking.
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Front axle: 9-tonne drum brake
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Rear axles: 16-tonne tandem rear axles (drum) – notice: tandem rear axles! Two 16-tonne axles side by side, offering a total load capacity of 32 tonnes. This is what a real heavy-duty chassis looks like.
9-tonne front axle + dual 16-tonne rear axles + double-layer frame – this spec list is practically the ceiling for construction truck chassis. Mixer full of concrete, dumper full of gravel, fire truck full of water – the chassis stays level, no nose-up, no sagging tail, no chassis twist.
Leaf Springs – Built to Take the Weight
This chassis isn’t built to “carry cargo” – it’s built to carry mountains.
Steering & Braking
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Steering gear: Factory-equipped 8118 steering gear
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Brake system: Without ABS – experienced construction operators know that ABS can be a hindrance in extreme off-road conditions. A simpler, direct brake system is more reliable and easier to maintain in the field.
Air Intake & Fuel System
400-litre tank – no range anxiety on long hauls. Work all day at the job site without leaving to refuel.
Wheelbase – You Tell Us How Long
Wheelbase is customised to your requirements – no fixed dimensions.
How long is your superstructure? We’ll match the wheelbase to it. Mixers, dumpers, sanitation trucks, sprinklers, aerial platforms, fire trucks – every body type gets its perfect wheelbase match.
The Cab – Comfortable, Work-Ready
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New front-face design – modern, commanding presence
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Upgraded cab – optimised interior space, better visibility
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Heating & cooling A/C – no sauna in summer, no freezing in winter
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Power windows + central locking – all the basics covered
Your driver spends 8+ hours a day here. Comfort equals productivity.
What Can This Chassis Be Converted Into?
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🚛 Mixer trucks – tandem rear axles handle the full concrete load; PTO drives the hydraulic pump; double-layer frame resists torsion
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🚛 Dump trucks – dual 16-tonne rear axles provide reliable lifting; heavy springs prevent sagging
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🚛 Fire trucks – 371 HP drives the pump; 400L tank ensures range; heavy water tanks sit steady on the chassis
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🚛 Sanitation trucks (sprinklers, garbage, sewage) – PTO powers the pump; chassis height suitable for body mounting
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🚛 Aerial work platforms – double-layer frame resists torsion; stable at full height
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🚛 Truck-mounted cranes – tandem rear axles provide a stable lifting base; no side-tilting
Who Is This Chassis For?
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Concrete batching plants, mines, large construction sites
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Municipal sanitation and landscaping departments
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Fire rescue and emergency response units
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Body builders and upfitters purchasing in volume
This is a complete upgrade from the 4×2 chassis. From a single rear axle to tandem rear axles, from 300L to 400L fuel tank, from 10/9+7 to 10/12 leaf springs – every upgrade is designed for heavier loads, longer hauls, and a more stable platform.
What the 4×2 can do, this can do. What the 4×2 can’t do, this can do too.
One call, solution delivered. Contact us now to customise your heavy-duty chassis!
