Lift Safety products
If the lift cable breaks, the cage does not fall down. To prevent the cage from falling down the shaft, Otis invented the catching device as early as 1852. This system ensures that the cage does not fall down if the hoisting cables break or the brake does not work.
There are several types of safety devices, including blocking devices, cable brakes and fall arrest devices. The speed of the lift determines which fall arrest device should be used.


Lift safety products
If the lift cable breaks, the cage does not fall down. To prevent the cage from falling down the shaft, Otis invented the catch device as early as 1852. This device ensures that the cage does not fall down if the hoisting cables break or the brake fails.
There are several types of safety devices, including blocking devices, cable brakes and lift safety devices. The speed of the lift determines which fall arrest device should be used.

Rope Brake
Emergency braking system for elevator ropes
The VG Rope Brake is available as a single unit for overspeed protection in the upward direction, or as a pair of units for bi-directional overspeed and unintended movement protection. The bi-directional option can be installed as a complete pair with joining and mounting plates, or can be split and mounted either side of the traction sheave.
The brake utilizes a spring-loaded drop jaw that is held off the ropes by a magnet. When the rope brake receives a signal that the lift is overspeeding, or if unintended movement has been detected, the magnet will release the drop jaw which will trap the ropes between the drop jaw and the static jaw. Any subsequent movement of the lift ropes causes the drop jaw to fully engage and generate the braking force required to stop the lift without damaging the ropes.
The VG Rope Brake is supplied with the RB2a Control Box for single directional operation, or with the UMD-SRB01 Control Box and Sensor Pack for bi-directional operation.
The cable brake is used with either the existing downward trapping device or a new VG trapping device. The wire brake is controlled from a bi-directional speed limiter.
The wire brake is placed in the machine room of the lift, designed to operate “failsafe”.
It acts on the cables and not on the guide rails.