4 Axles Dump Semi Trailers

This 4-axle dump semi-trailer runs a full HYVA 202 hydraulic system with an imported honeycomb cylinder, riding on three FUWA 13-ton axles with 90×16 mm 10-leaf steel suspension. The Q345 carbon steel main beam - upper plate 18 mm, lower plate 18 mm, middle web 8+8 mm - absorbs repeated rock impact without deformation, while the 8 mm floor and 6 mm side walls keep the empty weight competitive. Volume and capacity are configurable.

Built to Your Volume & Spec

Chengda supplies dump semi-trailers across a range of capacities and configurations. Whether you need a standard box for sand and gravel or a reinforced body for quarry rock, the trailer's dimensions, cubic capacity, and suspension type - leaf spring or air ride - are tailored before fabrication begins.

18 Years on the Workshop Floor

Our engineering team has been designing and producing dump trailers for close to two decades. That track record means we know where stress cracks start, which weld joints take the most abuse, and how to reinforce the frame so you get more loaded miles between overhauls.

Automatic Submerged-Arc Welding

Every joint - especially at the high-stress points where the body meets the frame - is laid by CNC submerged-arc equipment, eliminating the weak spots that cause cracking on manually welded competitors' units and supporting longer continuous-duty cycles.

High-Strength Body Panels

The carriage uses high-tensile steel plate that resists bowing and buckling during successive tip cycles. Even with sticky, compacted loads, the side walls hold their shape - no bulging, no weld separation at the corners.

Imported Honeycomb Hydraulic Cylinder

The core of the dump trailer, a full HYVA 202 hydraulic system with a honeycomb-design cylinder, delivers smooth, stable lift performance across the rated payload range. The cylinder's internal baffle structure extends service life far beyond conventional single-stage rams under frequent cycling.

Purpose-Built Chassis

The chassis is sourced from specialized manufacturers, not adapted from a flatbed design. Advanced production processes and consistent quality control across the frame, cross-members, and fifth-wheel plate deliver reliable pull performance behind a range of tractor heads.

Steel-Leaf or Air Suspension

Standard fit is a non-independent steel-plate stamped rigid suspension that spreads load evenly and absorbs road shock through progressive leaf deflection. Air suspension is available as an option for operators who prioritize ride quality and tare-weight reduction over initial cost.

FUWA Heavy-Duty Axles

Three 13-ton rated FUWA axles with a 50 mm / 90 mm removable kingpin form the load-carrying core. The axle beams are forged from specialist-grade steel - stiff under load, resistant to bending fatigue - and paired with 12R22.5 tires in a 12-unit configuration for maximum ground contact.