1. Product Overview Our precision wire rope drum assembly is the core component for double‑girder overhead crane trolley hoisting mechanism, used for winding steel wire rope to complete heavy‑load lifting operation. We supply both standard stock drums and fully customized drums according to your drawings or technical parameters, widely applied in workshop overhead crane, gantry crane, port lifting equipment. 2. Key Features ✅ High‑strength raw material : Q235B / Q345B rolled