Spring Balancer
- The auxiliary tool used together with operating tools
- Make the operational tools weightless and reduce the labor intensity of operators largely
| Model | Capacity(kg) | Stroke(m) | Net Weight(kg) |
| ORM-3.0 | 1.5-3.0 | 1.3 | 1.3 |
| ORM-4.5 | 3.0-4.5 | 1.3 | 1.3 |
| ORM-9 | 4.5-9.0 | 1.3 | 3.4 |
| ORM-15 | 9-15 | 1.3 | 3.8 |
| ORM-22 | 15-22 | 1.5 | 7.2 |
| ORM-30 | 22-30 | 1.5 | 7.6 |
| ORM-40 | 30-40 | 1.5 | 9.8 |
| ORM-50 | 40-50 | 1.5 | 10.4 |
| ORM-60 | 50-60 | 1.5 | 11.6 |
| ORM-70 | 60-70 | 1.5 | 11.8 |
| ORM-80 | 70-80 | 1.5 | 18 |
| ORM-100 | 80-100 | 1.7 | 18.6 |
| ORM-120 | 100-120 | 1.7 | 19.6 |
| ORM-140 | 120-140 | 1.7 | 20.6 |
| ORM-160 | 140-160 | 1.7 | 22 |