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Rope Drum

Large diameter rope drum, Diameter(rope drum)/ Diameter(Steel wire rope) =46, to extend the rope’s lifetime
Ensures accurate load positioning, hook drift +/- 4mm per meter
At least two rings of rope are around the drum while the hook is at the lowest position
Rope guide is made of spheroidal graphite cast iron, with wear resistant and heavy-duty
A spring operated guide roll in the rope guide to prevent the steel wire rope from going out of the groove effectively

Steel Wire Rope
High tensile steel wire rope, breaking force can reach to 2160N/mm2
Galvanized steel wire rope, maintenance free
Hook
DIN 17200 standard Hook, quenched and tempered steel 34CrMoV
Anti-friction bearings with life cycle lubrication, 360°rotation
Safety lock is to prevent the hook from releasing

Protection Function
Overload protection: The hook will go down and be forbidden to go up to ensure the load to fall to the ground safely when the overload occurs.
Lifting limit switch: 4-step adjustable geared rotating limit switches, automatic resetting, slow down before stopping, accurate phase sequence control
Mechanical anti-collision device: rubber buffer block, efficient energy absorption 
Wireless anti-collision limit switch: Infrared induction limit, sensitive and reliable
Overheating protection: Equipped with thermistor, the lifting motor has a good protection function from overheating
Braking safety protection: electric braking + mechanical brake

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