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| Model | Opening size (mm) | Capacity (kg) | Test load (kg) | Net weight (kg) |
| JCD–1 | 0–22 | 1000 | 2000 | 3.6 |
| JCD–2 | 0–30 | 2000 | 4000 | 6.0 |
| JCD–3 | 0–35 | 3000 | 6000 | 9.2 |
| JCD–5 | 5–45 | 5000 | 10000 | 16.5 |
| Model | Opening size (mm) | Capacity (kg) | Test load (kg) | Net weight (kg) |
| JCD–1 | 0–22 | 1000 | 2000 | 3.6 |
| JCD–2 | 0–30 | 2000 | 4000 | 6.0 |
| JCD–3 | 0–35 | 3000 | 6000 | 9.2 |
| JCD–5 | 5–45 | 5000 | 10000 | 16.5 |
