The MotoSuiveur® hoist safety device from Siguren acts as a failsafe hoist brake in the event of electrical or mechanical failure. A compact, self-locking unit mounted directly onto the rope drum, it follows the normal operation of the hoist, so that should a failure or over-speed occur, the resultant abnormal speeds will cause the device to automatically arrest the load, whilst incorporating damping to ensure maximum protection. The MotoSuiveur device is ideal for use on high integrity solutions, such as nuclear cranes or munitions handling.
On a traditional emergency calliper disk brake, latency of operation is an issue, as activation is dependent on first achieving over-speed before the braking system is energised to operate. Rope pay-outs of between 1.5m and 2m are not uncommon with this type of brake before a runaway load is brought to a halt.
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The MotoSuiveur unit however, with its integrated wheel and sliding worm drive and permanent connection to the hoist barrel will not allow a free-fall condition to develop. The unit only has to detect any unexpected movement or acceleration of the barrel and it immediately arrests the barrel rotation. The MotoSuiveur unit is able to safely stop a hoist barrel, with no greater shock loading than a traditional emergency stop activation, within 30° of angular rotation.
Proud to be the official UK distributor of the MotoSuiveur emergency braking system, SCX Special Projects now have a dedicated demonstration area at our head office in Sheffield so you can see it for yourself (by appointment only).