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ZW Group 6‑axle 40 ton dump semi‑trailer is engineered for sand & coal transport, combining high payload capacity with exceptional stability and durability. Main keywords: 6 axle dump trailer, 40 ton dump semi trailer, sand transport trailer, coal transport tipper, heavy‑duty dump semi trailer, ZW Group dump trailer.
Product Description
ZW Group 6‑axle sand transport dump truck trailer configuration ensures optimal weight distribution, minimizing road wear and enhancing handling even on uneven terrain.
The cargo box is constructed from thick high‑strength carbon steel (usually 10–12 mm side walls, 14–16 mm bottom plate) to resist abrasion from sand, gravel, and coal.
A robust HYVA hydraulic cylinder powers the rear dump mechanism, enabling steep dump angles for clean unloading and maximized productivity
Key Product Features & Advantages
Painting & Corrosion Protection
Shot‑blasted steel chassis to remove rust and scale before painting
One coat anticorrosive primer, followed by two coats of finish-grade urethane paint, in any customer‑specified color.
Axles & Brake System
FUWA or BPW branded multi‑leaf axles (13 T each), chosen for reliability in heavy‑load sand & coal hauling scenarios
Dual‑line pneumatic braking, multiple air chambers per axle, optional ABS for safety on long descents or high-speed routes
Tires & Rims
Heavy‑duty 12R22.5 or 13R22.5 tires, brands like Double Coin, Triangle—ensuring load-bearing capacity and wear resistance
Strong steel rims sized appropriately (9.00‑22.5, etc.) matched to wheel configuration
Suspension System
10‑leaf spring mechanical suspension standard for rugged terrain
Optional air suspension for smoother ride and adjustable deck height depending on payload
Hydraulic Tipping Mechanism
High‑quality HYVA hydraulic cylinder ensures smooth, reliable lifting and unloading
Designed for steep dump angles to facilitate rapid, complete discharge of sand, coal, gravel, or ore
Chassis & Structural Detail
Heavy I‑beam main frame with beam height around 500 mm, upper plate 14‑16 mm, lower plate 16‑18 mm, middle plate ~8 mm
Reinforced cross‑members and U‑type structure for rigidity and high torsional strength, resisting deformation under full load 
Additional Details
JOST brand landing gear (28 T two‑speed), standard kingpin options (2″ or 3.5″ JOST)
Spare wheel bracket, standard tool box, LED lighting system with 7‑way 24 V harness, sturdy feature set for global shipping and compliance
Production & Manufacturing Process
ZW Group employs advanced welding and stamping production lines, automated welding robots, and quality control systems.  Each trailer undergoes plasma cutting, robotic welding, hydraulic system assembly, painting, and final inspection.  
Production steps:
Raw material sourcing (high‑strength carbon steel)
CNC plasma cutting → automated welding → chassis assembly
Installation of axles, suspension, kingpin, landing gear
Hydraulic system mounting and test
Shot blasting → primer → painting → curing
Final assembly: lighting, tool box, air lines, spare tire bracket, inspection & load testing
The factory follows ISO9001, CE, DOT, CCC certification standards, producing several hundred dump semi‑trailers monthly for export to South Asia, Africa, the Middle East, and Latin America
Load Testing & Quality Assurance
Every trailer undergoes static and dynamic load testing to confirm payload capacity (40 t to 60 t depending on specs).
Hydraulic cylinders are fully tested under pressure.   Brake and suspension systems are verified under full load.
Non‑destructive testing (NDT) checks welding seams throughout.   Only after passing final quality checks is the trailer approved for dispatch.
Packaging & Shipping Details
Packaging: trailers shipped nude (no enclosure), wax‑polished steel body to protect against saltwater corrosion
Securing: tied with steel wire braces or blocks to avoid shifting during transport
Shipping options: Ro‑Ro vessel, flat‑rack, bulk cargo or container (depending on order volume)
Timely delivery within 20–30 days turnaround for production and delivery
Specification
Trailer Model -
6 Axle Dump Semi Trailer
Tare Weight(KG)
9000
Load capacity
45 Ton
Axle Brand
13Ton ZW brand
Axle Number
3
Suspension system
Common Mechanical Suspension
Steel Spring
10/10/10 leaf spring suspension
 
The material of Main beam
Main beam material Q345
The height of the beam is 500 mm,
upper plate is14 mm, down plate is 16 mm, middle plate is 10 mm.
Steel Plate
Floor plate: 8 mm; Side plate:6 mm, Rear gate 4 mm
Tire Type and quantity
12R22.5 12units Chinese brand
Hydraulic System
HYVA brand lifting system
Traction Pin
50mm (2’’) or 90mm (3.5’’)
Spare Wheel Bracket
2 pieces
Tool Box
1 Standard unit
Landing Gear
28ton, two speed, manual operating, heavy duty landing gear
With robust steel construction, reliable FUWA axles, HYVA hydraulic lift, customizable suspension, and thorough quality control, it's optimized for demanding hauling environments worldwide.  
The complete package—from production and testing to packaging and documentation—ensures clients receive a high-performance, durable, and export-ready solution.
Product origin: Shandong, China (Mainland)
Delivery time: 20-30days
Supply capacity: 300 sets/month
Trailer Model: 6 Axle Dump Semi Trailer
Load capacity: 45 Ton
Axle Brand: 13Ton ZW brand
Suspension system: Common Mechanical Suspension
Steel Spring: 10/10/10 leaf spring suspension
The material of Main beam: Main beam material Q345The height of the beam is 500 mm,upper plate is14 mm, down plate is 16 mm, middle plate is 10 mm
Steel Plate: Floor plate: 8 mm; Side plate:6 mm, Rear gate 4 mm
Tire Type and quantity: 12R22.5 12units Chinese brand
Hydraulic System: HYVA brand lifting system
Traction Pin: 50mm (2’’) or 90mm (3.5’’)
Spare Wheel Bracket: 2 pieces
Tool Box: 1 Standard unit
Landing Gear: 28ton, two speed, manual operating, heavy duty landing gear
Tare Weight: 9000 KG
brand: zw trailer