High-Strength Q550 Chassis Flatbed Trailer
The High-Strength Q550 Chassis Flatbed Trailer is an ultra-durable, high-yield commercial transport semi-trailer engineered specifically for severe-duty industrial applications, extreme impact loading, and heavy break-bulk operations. Constructed entirely with premium Q550 high-tensile structural steel and continuous automated submerged-arc welding, it provides a high strength-to-weight ratio, offering exceptional structural fatigue resistance and higher payload efficiency without compromising frame integrity. Equipped with a heavy-duty platform deck, multi-position container twist-locks, 13T–16T commercial axles, and robust mechanical multi-leaf or air suspension, it withstands aggressive impact from heavy mining equipment, steel billets, and raw materials. Fully certified under ECE, ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications
Model NO. : Customized
Type : Semi-Trailer
Load Capacity : 50T/60T/70T
Condition : New
Grade : Heavy Duty / Severe Impact Grade
Shape : High-Strength Heavy Flatbed
Origin : Shandong, China
Production Capacity : Customized
Certifications : ECE, ISO9001, CCC, CE, DOT, SGS
HS Code : 8716399000
Overall Dimensions : 12500-13000 x 2500 x 1500 mm
Platform Dimension : Customized
Wheel Base : 7000 + 1310 + 1310 mm
Tread : 1820 mm / 2050 mm
Axle Number : 3 Axles
Axle Brand : FUWA / BPW / HuaJin Heavy Duty
Axle Capacity : 13T / 16T
Tire Number : 12
Tire Specification : 12R22.5 / 11.00R20 / 12.00R20
Tire Brand : Triangle / Double Coin / Linglong / Chaoyang
Rim : 9.00-22.5 / 8.5-20
Suspension : Heavy Duty Mechanical Leaf Spring / Air Suspension
Leaf Spring : 10pcs / 12pcs (90x16mm / 100x16mm)
Brake System : ABS Anti-lock Braking System
ABS Brand : WABCO / Kemi / Haldex
Self-dumping : Not Self-dumping
Material : Ultra High-Strength Steel (Q550)
Main Beam Height : 500mm / 520mm
Upper Plate : 14mm / 16mm
Down Plate : 16mm / 18mm
Middle Plate : 8mm / 10mm
Welding : Automatic Submerged-Arc Welding
Platform Floor : Thickened Checkered Steel Plate 4mm / 5mm (Q550 Steel)
Landing Gear : 28T Two Speed Heavy Duty / JOST / FUWA
King Pin : 50#(2") / 90#(3.5") Interchangeable
King Pin Brand : JOST / FUWA
Twist Lock : 12pcs Integrated Multi-Position Container Locks
Spare Tire Carrier : 2pcs
Tool Box : 1pcs Heavy-Duty Steel Box
Electric System : 24V, 7 Pin Socket, LED Light
Wiring Harness : 6 Lines
Painting : Sand Blasting + Primer + Two Coats Polyurethane Coating
Colour : Optional
Warranty : Main Beam 3Y / Axle 1Y
Package : Nude / Container / Ro-Ro
Delivery Time : 25-30 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. Ultra High-Tensile Q550 Chassis Architecture
- Q550 High-Yield Frame: Fabricated entirely using Q550 high-strength structural steel, delivering significantly higher yield strength ($R_{eH} \ge 550\text{ MPa}$) compared to standard Q345B steel, allowing thinner plate profiles to reduce deadweight while increasing total load capacity.
- Impact-Resistant Structural Spine: Main longitudinal beams welded via continuous automated Submerged-Arc Welding (SAW) to provide supreme torsional elasticity, absorbing dynamic shock loads during aggressive loading of raw materials or heavy machinery.
- Dual-Purpose Deck Layout: High-durability Q550 checkered floor plate paired with 12 multi-position ISO twist-locks, enabling seamless switching between heavy break-bulk freight and containerized intermodal shipping.
2. Axle, Suspension & Pneumatic Braking Systems
- Heavy Commercial Axle Configuration: 3 premium heavy-duty commercial axles (FUWA / BPW / HuaJin; 13T/16T capacity per axle) calibrated for long-haul endurance and optimal axle load distribution.
- Reinforced Mechanical / Air Suspension: Heavy-duty multi-leaf spring suspension (up to 12pcs, 100x16mm) or pneumatic air suspension engineered to cushion frame joints and absorb severe road impact.
- Advanced Pneumatic Braking System: Dual-line ABS air braking system (WABCO / Kemi / Haldex brands) ensuring short, controlled, and stable stopping performance under maximum payloads.
3. Operational Accessories & Safety Setup
- Heavy-Duty Landing Gear & Kingpin: Extra-heavy-duty 28-Ton two-speed landing gear (JOST / FUWA) combined with interchangeable 50#(2") or 90#(3.5") kingpins for secure tractor coupling.
- Electrical & Lighting Package: Weatherproof 24V LED lighting set with a 7-pin socket and armored wiring harness for total highway safety compliance.
- Corrosion & Wear Protection: Surface thoroughly cleaned via shot-blasting, coated with anti-rust primer, and finished with double-coated polyurethane topcoats for resistance against abrasive site environments.
Commercial & Logistics Terms
- Warranty Policy: 3-Year warranty for the main structural chassis frame; 1-Year warranty for axles.
- Delivery Lead Time: 25 – 30 working days upon order confirmation.
- Packaging & Shipping: Nude packing; shipped via Container, Ro-Ro vessel, or Bulk Cargo ship.
- Payment Terms: T/T (Telegraphic Transfer), L/C (Letter of Credit).

