Gambe di parcheggio del rimorchio e perno centrale della ralla: elevata sicurezza di trasporto nei sistemi di collegamento del rimorchio

27.09.2026
Gambe di parcheggio del rimorchio e perno centrale della ralla: elevata sicurezza di trasporto nei sistemi di collegamento del rimorchio

Carrier Safety in Trailer and Semi-Trailer Systems

In heavy commercial vehicle logistics, coupling and parking safety between the tractor and semi-trailer depends directly on two fundamental components: Mechanical Trailer Landing Gear and the 5th Wheel King Pin. The slightest fatigue or material defect in these parts can cause irreversible safety risks while driving or during cargo loading.

1. 24-50 Ton Mechanical Landing Gear

Trailer landing gear manufactured by GOS Brake Systems fully complies with international transport standards with a 24-Ton dynamic lifting capacity and a 50-Ton static load capacity.

  • Two-Speed Gearbox System: High gear allows rapid lowering to the ground (14 mm/turn), while low gear enables smooth, safe lifting of fully loaded trailers with minimal manual effort (1 mm/turn).
  • Interchangeable with JOST, SAF-Holland, and BPW: GOS Ultra GG and Prime PS series feature 100% mounting hole and backplate dimension compatibility with JOST Modul B, SAF Titan/Hercules, and BPW landing legs.
  • Versatile Foot Options: T-foot, S-foot, and wheeled foot options provide maximum stability on asphalt, gravel, and uneven ground.

2. 5th Wheel King Pin (2" Flanged and Weld-In)

Locking into the tractor’s fifth wheel, the King Pin is the most critical coupling element responsible for hauling and steering dozens of tons of cargo.

  • Forged Alloy Steel (42CrMo4): Quenched and tempered forged alloy steel resistant to extreme torsional, tensile, and bending stresses.
  • ECE R55 Safety Certification: Manufactured to stringent homologation standards, all GOS king pins undergo 100% Magnetic Particle Inspection (MPI) crack testing.
  • 2-Inch (2") Flanged Type 452: 8-bolt flange allows quick pin replacement upon wear without cutting the trailer coupling plate (interchangeable with JOST KZ 1012 and SAF 452).

Manufactured in our Konya integrated plant, GOS landing gears and king pins are trusted by fleets and leading trailer builders including Schmitz Cargobull, Krone, Tırsan, Kögel, Wielton, and Koluman across more than 45 countries.