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TwinLock ™ Mechanism Design

The TwinLock™ jaw design is the industry’s quickest and most reliable fifth wheel to kingpin coupling lock mechanism, and is your best solution towards preventing a dropped trailer incident. The quick closing design of the lock jaws prevents coupling delay or failure caused by kingpin bounce out. 

Exclusive twin locks are built as one single piece of forged, machined, hardened steel then cut in half to create symmetrical locks that completely encompass the kingpin for enhanced assurance and reliability.

Solutions that are qualified for technologies
Technology Advantages

  • High coupling protection lock system that helps protect against coupling at an improper height
  • Much greater kingpin-to-lock contact area over competitive models for longer kingpin and lock life
  • Forged/Cast Steel Locks include a rear lock that is forged, hardened and machined steel and a front lock that is machined and hardened wear-resistant alloy
  • Precision machining of lock mechanism/kingpin interface

Other topics

Activities & Events
Innovative aftermarket solutions and digital tools
SAF-HOLLAND joins with Haldex to show its original parts and aftermarket solutions for commercial vehicles at Automechanika 2024, at stand B20 in hall 6.0.
The focus is on the Haldex refurbishing programme for brake calipers, the SH I.Q. Portal for digital services and NFC technology for fast identification of spare parts.
Activities & Events
Future technologies at the IAA TRANSPORTATION 2024
SAF-HOLLAND focuses on safety and sustainability for commercial vehicles.
At the IAA TRANSPORTATION in Hanover, SAF-HOLLAND is presenting all of its brands as well as current trends in the commercial vehicle industry.
Under the motto "SAF-HOLLAND for better transportation", trade fair visitors can find out about pioneering technologies, safety and sustainability of commercial vehicles at stand A06 in hall 26.
Two SAF-HOLLAND Facilities Earn PACCAR 10 PPM Quality Award for 2023
Muskegon, Michigan, April 22, 2024 – SAF-HOLLAND, a leading global manufacturer of heavy-duty commercial vehicle components, has earned the PACCAR 10 PPM Quality Award for 2023 for its Woodstock, Ontario and Wylie, Texas locations. This is the sixth year that our Canadian manufacturing facility has received the sought-after award and it’s the first time for the Wylie, Texas facility to receive it.
Products
Biodegradable lubricant for fifth wheel couplings
SAF-HOLLAND lubricates trailers in an environmentally friendly, economical and efficient way

SAF-HOLLAND count on the high-performance lubricant HOLLAND RECOLUBE BIOPOWER SKX 023 for its RECOLUBE lubricant pump.
News
Merger Plan
Merger Plan of SAF-HOLLAND Poland & Haldex Poland
Products
SAF-HOLLAND Announces Midland Aftermarket Brand Expansion to Meet Growing Industry Demands
Muskegon, Michigan, June 14, 2023 – SAF-HOLLAND, a leading global manufacturer of heavy-duty commercial vehicle components, is pleased to announce its Midland aftermarket brand expansion to meet the growing demands of the industry. This strategic move comes in response to the increased need for reliable and durable aftermarket parts.