Crawler Belt Self-Unloading Semi Trailer
The Crawler Belt Self-Unloading Semi Trailer (also known as a Conveyor Belt Self-Discharge Trailer, Horizontal Unloading Belt Semi-Trailer, Continuous Belt Discharge Semi-Trailer, or Belt Conveyor Dump Semi Trailer) is an advanced, non-tipping heavy-duty bulk transport trailer designed for continuous, controlled horizontal unloading. Unlike traditional hydraulic end dump or side tipper trailers that lift the cargo body, this trailer utilizes an integrated high-torque hydraulic crawler belt or reinforced rubber conveyor belt system installed along the floor bed to move cargo horizontally toward the rear tailgate. Built on a high-tensile structural steel chassis (Q345B/Q550/T700) welded via automated submerged-arc processes, it eliminates the risk of vehicle rollover during unloading, allows safe operation inside low-clearance facilities (such as warehouses, tunnels, and under power lines), and handles sticky or low-density bulk commodities like agricultural grain, silage, wood chips, coal fines, fertilizer, asphalt, and urban solid waste with zero material hang-up. Outfitted with 2, 3, or 4 commercial heavy-duty axles (13T/16T FUWA, BPW, STEYR, or AQ axles), mechanical spring or pneumatic air ride suspension, an automatic hydraulically operated rear door, and a dual-line pneumatic air braking system with WABCO emergency relay valves, this belt self-unloading trailer delivers maximum operational safety, precise volumetric discharge rate control, and long-term asset profitability. 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 / Crawler Belt Self-Unloading Spec
Type : Semi-Trailer / Crawler Belt Self-Unloading Semi Trailer (Horizontal Discharge)
Load Capacity : 35 - 60 Tons (High-Volume & Bulk Payload Rating)
Volumetric Capacity : Approx. 35 - 60 CBM (Customizable High-Cube Volume)
Condition : New
Grade : High-Safety Horizontal Discharge & Agricultural/Industrial Logistics Grade
Shape : Fully Enclosed / Open-Top Straight Box with Integrated Conveyor Bed
Origin : Shandong, China
Production Capacity : Customized
Certifications : ECE / ISO9001 / CCC / CE / SGS
HS Code : 8716399000
Overall Dimensions : Customized (Approx. 11500-13500 x 2500-2550 x 3400-3800 mm)
Cargo Box Inside Dimensions : Customized (Approx. 11000-13000 x 2400-2450 x 1800-2200 mm)
Tare Weight : Approx. 8200 kg - 10500 kg
King Pin Setting : 1220 mm
Conveyor Belt System : Heavy-Duty Vulcanized Rubber Belt / High-Tensile Steel Slat Chain Crawler Drive
Hydraulic Motor & Drive : High-Torque Hydraulic Motor with Planetary Gear Reduction, PTO Driven or Auxiliary Diesel Pack
Unloading Speed : Adjustable Controlled Feed Rate (Full Discharge in 3 - 7 Minutes)
Tailgate : Hydraulic Swing-Up Rear Door with Perimeter Dust & Liquid Rubber Seals
Wheel Base : 6800mm - 8800mm
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 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 / Air Ride Suspension
Leaf Spring : 11-pcs (or 10/12-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 : Horizontal Belt Conveyor Self-Discharging (Non-Tipping)
Main Beam : I shape, Mild Alloy (16Mn / Q345B / Q550 / T700) 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 : 25 - 30 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. Zero-Rollover Horizontal Belt Discharge Technology
- Non-Tipping Unloading Safety: Eliminates vertical box elevation completely during cargo discharge, removing the risk of trailer tipping or rollover on uneven ground, soft terrain, or strong side winds.
- Low-Clearance Operational Capability: Perfect for discharging bulk materials inside low-ceiling warehouses, factory bays, greenhouses, tunnels, and beneath overhead power lines or tree branches where traditional dumpers cannot raise their bodies.
- Controlled Feed & Metered Spreading: Hydraulic motor speed control allows precise, variable-speed material output, enabling direct feeding onto processing conveyors, hoppers, or uniform line-spreading along roadways.
2. Heavy-Duty Conveyor Belt & Structural Architecture
- Reinforced Steel-Chain or Vulcanized Rubber Belt: High-tensile conveyor bed withstands abrasive friction, high impact drops, and chemical exposure from fertilizer, wood chips, grain, or wet organic waste.
- Submerged-Arc Welded High-Strength Chassis: Fabricated using Q345B/Q550/T700 high-tensile steel main I-beams using automated submerged-arc welding to ensure frame rigidity under heavy load transit.
- Hydraulic Sealed Tailgate: Hydraulic lift-up rear tailgate opens completely to clear cargo flow, equipped with perimeter seals to prevent fine grain leakage or liquid dripping during transit.
3. Commercial Running Gear & Air Braking Safety
- 13T/16T Heavy Commercial Axles: Fitted with 3 commercial heavy-duty axles (FUWA, BPW, STEYR, or AQ) rated for 13 to 16 tons per axle, providing high durability across long-distance distribution routes.
- 11-Leaf Mechanical or Air Ride Suspension: Heavy-duty 11-piece leaf spring packs or optional pneumatic air ride suspension effectively dampen road vibration and keep tire loads evenly balanced.
- WABCO Air Braking System: Dual-line pneumatic brake system equipped with a WABCO emergency relay valve, T30/30+T30 spring brake chambers, and a parking brake for instant stopping response and secure positioning.
Commercial & Logistics Terms
- Shipping & Delivery: Shipped via Ro-Ro vessel, Bulk Cargo vessel, or flat-rack packaging to optimize international ocean freight costs.
- Warranty Coverage: 3-Year structural guarantee on the main chassis frame; 1-Year warranty covering axles, landing gear, hydraulic motor drive assembly, and braking valves.
- Payment Terms: 30% T/T deposit, 70% balance paid prior to dispatch; irrevocable L/C at sight accepted.
