Left‑hand 65° Drum Sleeve Plug Welding Zinc Rich Primer For Hoist
Left‑hand 65° Drum Sleeve Plug Welding Zinc Rich Primer For Hoist
Product Description
This drum sleeve is made of Q355B steel with 65° left-hand rope groove and manufactured by plug welding process. Coated with zinc rich primer, it delivers reliable anti-corrosion performance. High-precision rope groove guides steel wire rope neatly and reduces rope wear. It is designed for crane winch drums with convenient assembly and maintenance.
Technical Parameter
| Parameter | Specification |
| Product Name | Drum Sleeve |
| Material | Q355B |
| Rope Diameter | 15.875mm |
| Groove Bottom Diameter | 270mm |
| Pitch | 16.73mm |
| Number of Groove | 20.5 |
| Direction | Left-Handed |
| Lead Angle | 65° |
| Connection Mode | Plug Welding |
Matters Need to Attention
- Check for dents and deformation on rope grooves before installation. Ensure no cracks or porosity on plug-welded joints.
- Fit the drum sleeve properly during assembly. Tighten bolts to specified torque to avoid misalignment.
- Keep wire rope seating smoothly into grooves in operation. Avoid rope jumping and squeezing to prevent groove damage.
- Inspect zinc-rich primer coating regularly. Repair damaged coating timely for anti-corrosion protction.
- Never operation under over-load. Periodically check plug-weld seams; stop operation immediately if cracks are found.
About Us
Our factory has casting, forging, gear machining, sheet metal stamping, welding, heat treatment, machining and other advanced equipment more than 2000 sets. In recent years, we has introductioned Germany CW1000 processing center, CNC four axis, five-axis linkage machining center, CNC punching machine, large CNC gear hobbing gear grinding machine, large CNC floor-type boring and milling machine, vacuum electron beam welding, CNC welding robots and 80 machine and other advanced processing equipment.
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