MotoSuiveur® IRD Add-on: Safe and Remote Suspended Load Recovery for Your Critical Hoists

When a hoist's drive chain fails with the load suspended, the load still has to come down, ideally without anyone going to the hoist. The MotoSuiveur® is a safety-dedicated, independent drive chain for the drum. It arrests the suspended load and holds it: the load cannot turn its worm and worm wheel back. The IRD (Integrated Recovery Drive) is a MotoSuiveur add-on built on that same drive chain. The crane operator runs it from the cab, on the MotoSuiveur's remote control box: the IRD engages, lowers the suspended load to the ground and releases. Engagement and disengagement are purely mechanical. The arrest itself prepares the recovery, and two motors and a spring do the work, with no other actuator. This makes it suited to hoists in extreme heat, gas or radiation, where nobody should go to the hoist. ✅ Purely Mechanical Engagement: the recovery motor and a spring engage and release the drive, with no other actuator ✅ Remote Operation From the Cab: the recovery runs from the MotoSuiveur's remote control box ✅ Controlled Lowering: the load moves only while the recovery motor turns, all the way to the ground ✅ Made for Hostile Areas: suited to hoists in extreme heat, gas or radiation Chapters 0:00 Intro 0:11 When the hoist drive chain fails 0:32 The MotoSuiveur IRD add-on 0:52 Normal operation 1:10 Failure and arrest 1:30 Worm position switches 1:43 How the arrest prepares the recovery 2:23 Nut and gear, close up 2:53 Recovery from the cab 3:07 Engagement 3:29 Lowering 3:47 Release and reset 4:12 Summary The IRD is one of the recovery methods the MotoSuiveur makes possible. Our video on recovery methods presents them all 👉 _ Learn more about the MotoSuiveur 👉 https://www.siguren.com #MotoSuiveur #Siguren #HoistSafety #CraneSafety #LoadRecovery #OverheadCrane