Rope Lock
Handling high tension loads requires special attention. Our patented Rope Lock (also known as the SHM T-lock) allows ropes and hawsers to be secured outside the vessel's main deck, so that your crew can operate from a safe zone.
- Integrated in aft bulwark – occupies no deck area
- SWL10T, SWL20T and SWL40T
- Designed for all rope types, up to 110mm diameter
- Replaceable inserts for different rope size
- Integrated load measurement - easy and fast reading of rope tension
- Emergency release acc. to NMA regulations
The SHM rope lock has several unique features. One of them is that it's the only rope device available with a quick release function – enabling the rope to fall into the sea in case of an emergency situation.
This function is also operational in dead ship conditions, thanks to SHM Safety System with accumulators and releases the rope within 10 seconds.
SHM Rope Lock can be integrated in bulwark or even flush mounted in main deck - we customize this according to vessel layout and planned operations. The flush mounted unit replaces conventional shark jaw and is convenient for vessels working only with ropes and hawsers.
This solution is patented and revolutionizes traditonal anchor handling.
SHM Mooring System
Used together on the same system, our mooring lock, towing pins, and rope lock give you a safer and more efficient operation.
1. The rope is placed in the side gate with rope pins to secure the rope tension along the vessel
2. The mooring lock is extended outboard and the plate is locked
3. The rope is lifted into the rope lock and secured
4. The mooring lock is retracted, creating approximately 1.5 m of slack in the rope
5. It is now safe to work with both the plate and the rope
How it started
-
![]()
-
![]()
→Torbjørn Letrud, SHM
The harder you pull, the tighter it holds.
That is the logic of a self-tightening climbing knot – and the principle behind the SHM T-lock (also known as the SHM Rope lock) which quickly became an industry standard and is named after our own engineer Torbjørn Letrud.
When he joined SHM 10 years ago, a cardboard tube model sat on a table in the office. It represented a machine under development – aiming to provide safe and simple rope locking on the deck of a vessel. The problem was that it needed several metres of rope to build up enough friction surface for holding strength, making it difficult to calculate the correct tension in the rope after release.
Get in touch with us!
