Square Box Dump Semi Trailer
The Square Box Dump Semi Trailer (also known as a Rectangular Tipper Semi Trailer, Box-Type End Dump Trailer, Heavy-Duty Square Body Tipper, or Standard Cargo Box Dump Semi Trailer) is a highly robust, large-capacity self-unloading semi-trailer engineered for heavy-duty bulk transport, mining ore hauling, construction demolition debris, riprap, boulders, sand, gravel, and scrap metal logistics. Featuring a high-rigidity rectangular cargo box structure with reinforced vertical and horizontal side stiffeners, this design maximizes volumetric stacking space while offering superior impact resistance against heavy bucket drops from excavators and wheel loaders. Constructed on a high-tensile structural steel chassis (Q345B/Q550/T700) welded via automated submerged-arc processes, it incorporates a heavy-gauge steel floor deck (up to 8mm or 10mm) and reinforced side walls (up to 6mm or 8mm). Powered by a front-mounted multi-stage HYVA telescopic hydraulic cylinder system, it delivers maximum tipping leverage, steep discharge angles, and rapid offloading cycles. Outfitted with 2, 3, or 4 commercial heavy-duty axles (13T/16T/20T FUWA, BPW, STEYR, or AQ axles), 10/11-leaf mechanical spring or heavy bogie suspension, an automatic top-hinged tailgate with heavy locking bars, and a dual-line pneumatic air braking system with WABCO emergency relay valves, this rectangular dump trailer provides maximum structural endurance, versatile load handling, and reliable operational profitability under severe industrial and mining conditions. Fully certified under ISO9001, CCC, CE, and SGS standards.
Contact Us for Pricing
Interested in this product? Contact us now for detailed pricing and product information.
Product Details
Technical Specifications
Model NO. : Customized / Standard Square Box Spec
Type : Semi-Trailer / Square Box Dump Semi Trailer (Rectangular End Tipper)
Load Capacity : 40 - 75 Tons (Heavy Duty & Severe-Service Payload)
Volumetric Capacity : Approx. 25 - 50 CBM (Customizable)
Condition : New
Grade : Heavy Duty / Mining, Demolition & Heavy Infrastructure Grade
Shape : Standard Rectangular Cargo Box / Straight Frame End Dump Structure
Origin : Shandong, China
Production Capacity : Customized
Certifications : ECE / ISO9001 / CCC / CE / SGS
HS Code : 8716399000
Overall Dimensions : 9.8m * 2.5m * 3.2m (LWH) / Customized (9500-11500 x 2500-2550 x 3000-3800 mm)
Cargo Box Inside Dimensions : 9.3m * 2.3m * 1.6m (LWH) / Customized
Tare Weight : Approx. 8500 kg - 11000 kg
King Pin Setting : 1220 mm
Steel Sheet Thickness : Floor Thickness 8mm - 10mm, Side Wall Thickness 6mm - 8mm (High-Tensile Steel Q345B / Q550 / NM400 Wear-Resistant Plate)
Hydraulic Jack : Full set of HYVA hydraulic system, front setting telescopic hydraulic cylinder
Tailgate : One-piece rectangular tailgate with upper articulation, automatic mechanical/pneumatic safety lock system
Wheel Base : 4800mm + 1310mm + 1310mm / Customized
Tread : 1840 mm
Axle Number : 3 Axles (Optional 2 / 4 Axles)
Axle Brand : AQ, FUWA, BPW or STEYR axle
Axle Capacity : 13 Ton / 16 Ton / 20 Ton per axle
Rims & Tires : Rim 8.0-20 or 8.5-20 / 9.00-22.5; Tire 11.00-20, 12.00-20 or 12R22.5
Tire Number : 12 pcs + 1 Spare Tire
Tire Brand : Triangle / Double Coin / Linglong
Suspension : 3 axle mechanical suspension with 11-pcs leaf spring / Heavy Bogie Suspension
Leaf Spring : 11-pcs (or 10/12/14-pcs heavy reinforced spring packs)
Brake System : Dual lines pneumatic brake system, WABCO Emergency Relay Valve; T30/30+T30 air chamber; parking brake
ABS Brand : WABCO / Kemi
Self-dumping : Self-dumping (Rear End Tipping)
Main Beam : I shape, Mild Alloy (16Mn / Q345B / Q550) by Automatic submerged arc welding
Cross Beam : Mild Alloy Q235 High-Density Crossmember Matrix
King Pin : Welded / Bolted kingpin, size 50# (2") or 90# (3.5")
Landing Gear : Double sides operation, Static capacity 30 Ton (JOST / FUWA)
Spare Tire Carrier : 1 or 2 Units Heavy-Duty Winch Carriers
Tool Box : 1 Unit Heavy-Duty Lockable Steel Box
Lights & Reflectors : Rear light, rear reflector, turn indicative light, side reflector, fog lamp, number plate light
Wiring : 24V, 6 lines / 7 lines ISO Standard Wiring Harness
Air/Elec. Connector : ISO standard air connector, 24V 7 pin plug socket
Paint : Sand blasting before painting, color upon request (Sa 2.5 + Epoxy Zinc Primer + Polyurethane Topcoat)
Warranty : Main Beam Frame 3 Years / Axles & Major Parts 1 Year
Package : Nude Packing / Bulk Vessel / Ro-Ro / SKD Packaging
Delivery Time : 20 - 25 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. High-Rigidity Rectangular Box Architecture
- Maximized Volumetric Space: Straight side walls and 90-degree corner geometry optimize internal box volume, making it ideal for high-density mining ore, large demolition debris, scrap metal, and bulk aggregates.
- External Rib Reinforcement: Reinforced with closely spaced vertical and horizontal side stiffeners (channel or box section ribs) to prevent side-wall bowing or bulging under heavy dynamic loading.
- High-Impact Heavy Decking: Built with an 8mm to 10mm high-tensile steel floor deck supported by a dense crossmember grid, engineered to withstand high-drop impacts from heavy excavators without dishing.
2. Front Telescopic HYVA Hydraulic Lifting System
- Superior Lifting Leverage: Fitted with a front-mounted multi-stage HYVA telescopic hydraulic cylinder that provides maximum tipping force, smooth elevation, and long service life.
- Steep Unloading Inclination: Achieves a steep dump angle (up to 50°–55°), ensuring fast, complete discharge of heavy rock, gravel, and sticky clay without material hang-up.
- Automatic Tailgate Safety Locks: Top-hinged heavy-duty steel tailgate features mechanical linkage latches and pneumatic safety clamps that open automatically during tipping and lock securely when lowered.
3. Severe-Service Chassis & Braking Infrastructure
- Submerged-Arc Welded Main Chassis: Heavy-duty Q345B/Q550 I-section main beams welded automatically via submerged-arc processes provide high torsional stiffness and frame durability during high-load tipping.
- 13T/16T Heavy Commercial Axles: Powered by commercial heavy-duty axles (FUWA, BPW, STEYR, or AQ) paired with 11-leaf mechanical spring packs or heavy bogie suspension to endure harsh unpaved mining roads.
- WABCO Air Braking System: Dual-line pneumatic brake system equipped with WABCO emergency relay valves and T30/30+T30 brake chambers guarantees short stopping distances and secure vehicle positioning during tipping operations.
Commercial & Logistics Terms
- Shipping & Delivery: Shipped via Ro-Ro vessel, Bulk Cargo vessel, or stacked in SKD format to minimize international ocean freight costs.
- Warranty Coverage: 3-Year structural guarantee on the main chassis frame; 1-Year warranty covering axles, landing gear, hydraulic cylinder assembly, and braking valves.
- Payment Terms: 30% T/T deposit, 70% balance paid prior to dispatch; irrevocable L/C at sight accepted.
