| Item number | Model | Rated load (kN) | Applicable stringing block sheave width(mm) | Weight (kg) | Feature |
|---|---|---|---|---|---|
| 81013 | SZ4A-13 | 130 | 100 | 139 | Poising sheave |
| 81014 | SZ4B-13 | 130 | 100 | 82 | Independent |
| 81015 | SZ4B-18 | 180 | 110 | 95 | Independent |
| 81016 | SZ4B-25 | 250 | 110 | 105 | Independent |
| 81017 | SZ4B-32 | 320 | 125 | 150 | Independent |



