Heavy Trailer Class (HVNL s.5)

Semitrailer

Rear Axle Group | Kingpin Coupling | Licence: HC or MC

Articulated heavy trailer with rear axle group and front kingpin locking into a prime mover's fifth wheel.

1. Basic Information & Technical Specifications

  • Mass Limits: Tri-axle GML 20.0t, CML 21.0t, HML 22.5t (with Road Friendly Suspension). Max S-dimension 9.5m.

2. Licensing Requirements & Conditions

  • Licence Class: Minimum HC for single semi; MC for multi-trailer combinations.

3. Enforcement Options & Roadside Focus

  • Curtainsider Restraint: Weather curtains are not load-rated restraints; internal freight must be strapped to withstand 0.8g forward forces.

4. Reference Images & Inspection Points

Tri-Axle Semitrailer

Tri-Axle Tautliner Semitrailer

Check kingpin locking jaws, tri-axle brake boosters, and internal load lashings.