Mainstream specifications of semi-trailer for container transportation

Overall dimensions
-20 foot skeleton: total length 7.4-8.5m; width 2.48-2.55m; bearing surface height 1400-1550mm
-40 foot skeleton (best-selling): total length 12.4-12.5m; width 2.48-2.55m; bearing surface height 1420-1580mm
-45 foot skeleton: total length 13.95m; width 2.48-2.55m; bearing surface height 1420-1600mm
Axis configuration

  1. Two axle: 2 × 13 ton axle, light weight, mostly used for short distance transportation in port yards
  2. Three axle (mainstream domestic trunk line): 3 × 13 ton axle; Optional lifting bridge, empty vehicle lifting bridge, reduces tire wear and saves fuel
    Total mass standard: 40000 kg (40 tons), compliance announcement limit
    Self weight (lightweight skeleton)
    -20 foot two axis: approximately 3.8-4.2 tons
    -40 foot three-axis: approximately 4.8-5.4 tons
    -45 foot three-axis: approximately 5.2-6 tons
    suspension system
  3. Steel plate spring suspension: Low cost, resistant to heavy loads, preferred for general cargo container transportation
  4. Air suspension: adjustable height, good shock absorption, protects the cargo in the box, and is commonly used for refrigerated transportation
    tire
    Mainstream: 12R22.5; Partial old models 11.00R20; Three axle standard with 12 tires
    lock
    -20 feet: 4 sets of twist locks
    -40 feet: 6-8 sets of twist locks, can hold 2 20 foot small boxes at the same time
    -45 feet: 8-12 sets of twist locks, compatible with 20/40/45 foot box types
    Standard components
    ABS braking system, side rear protection, air storage braking, 28T linkage leg, traction pin 50 # (national standard), spare tire rack, toolbox
    Frame main beam
    Mainstream material Q345B/T700 high-strength steel * *, longitudinal beam height 480-500mm, welded I-beam structure for vehicles

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