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Bolted Type Removable Trailer King Pin | Semi-Trailer Coupling Kingpin

Bolted Type Removable Trailer King Pin | Semi-Trailer Coupling Kingpin

Bolted Type Removable Trailer King Pin | Semi-Trailer Coupling Kingpin

This bolted assembly king pin is precision CNC machined from high-strength alloy steel, quenched and tempered for excellent wear resistance. Adopts 6 high-tensile bolt locking structure, separable spindle and flange base, widely used for container semi-trailers, box vans and export standard trailers. Easy for disassembly and partial replacement to cut maintenance cost.

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  • Description


ItemSpecification
StructureBolted detachable assembly
MaterialHigh strength alloy steel
Surface TreatmentGrinding & galvanized anti-rust
Common Size2 inch (50#) / 3.5 inch (90#)
Fixing MethodBolt fastening on traction plate
Processing TechnologyForging + CNC precision turning
Applicable VehicleContainer trailer, cargo box trailer, export standard semi-trailer

Core Advantages

  1. Detachable design, only replace worn spindle instead of whole base, greatly reduce repair expense

  2. High concentricity after bolt locking, stable connection, less shaking during driving

  3. Integral heat treatment improves hardness, strong abrasion and impact resistance

  4. Smooth surface with anti-corrosion coating, long service life in humid and dusty environment

  5. Standard dimension, compatible with most international fifth wheel couplings

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