Forged Grade 80 single-sheave swivel-hook block for wire-rope and synthetic-sling reeving on deck cranes, anchor-handling winches.
Forged Grade 80 single-sheave swivel-hook block for wire-rope and synthetic-sling reeving on deck cranes, anchor-handling winches.
| Working load limit | 8 t @ 4:1 design factor |
| Sheave diameter | 150 mm |
| Minimum recommended rope | D/d ≥ 18 for permanent service per ISO 4309 |
| Side plates | Grade 80 alloy steel |
| Sheave | Grade 60 alloy steel, induction-hardened groove |
| Sheave bushing | bronze or roller bearings (WLL > 12 t) |
| Hook (where fitted) | forged Grade 80 with safety latch |
| Finish | hot-dip galvanised or shot-blast + epoxy |
| Proof load | 2 × WLL |
| Minimum break load | 4 × WLL |
| Marking | WLL, batch ID, manufacturer logo, CE |
| Certificate | EN 10204 3.1 mill cert with lot traceability |
| Material | Grade 80 alloy steel forged |
| MOQ | 1 ea |
Form-fit envelope of Crosby McKissick 419 / 419W snatch, 416 swivel, 415 tilt blocks, Van Beest Green Pin Snatch, Gunnebo Industries BS, William Hackett WH-SB and Pewag SBH single-sheave blocks. Sheave diameter and hook geometry match the Crosby McKissick 419 published dimensions at the same WLL band.