The drum can be classified into three types according to its groove：
1. Slotless drum / plain drum / smooth drum
2. LBS grooved drum
3. Spiral drum or helical drum
The drum also can be classified into two types： drum with flanges and drum without flanges.
Cable Split LBS Grooves Sleeves For Offshore Marine Crane Main Drum
Split LBS Grooved Drum For Reel And Wire Rope Drum In Differenct Working Condition
LBS Grooved sleeve using Engineering Machinery for Hoisting pulling winch
Carbon Steel Alloy Steel Wire Rope Winch Drum For Cable hositing towing winch machine
High Efficient Tower Crane Engineering Wire Rope Winch Drum Single Drum
Marine Windlass Boat Winch Grooved Drum Carbon Steel Integral Type
Wire Rope Drum With LBS Groove Sleeve Bolted For Crane Towing Winch
LBS Sleeve Drum Enginee Machine Suitable To Wokover Rig Logging Electric Device
Deep Mining Winch With High Effency Wire Rope Reel Drum In Groove Installment
