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A device that balances torque change in the spring through use of a tapered drum and enables easy manual operation for raising and lower suspended. Reduces fatigue and increases work efficiency.
Tool position can be stabilized to enable accurate work.
Prevents tool contamination.
It does not require electric or air power and it is safe to work with. For suspension of tools in assembly production lines.
When tightening/removing screws for long periods of time.
For hanging and centering of equipment, jig tools, and processed parts and materials.
Model | capacity (kg) |
Stroke (m) |
Wire rope diameter (Φmm) |
Mass (kg) |
How to adjust spring tension |
Fall-arrest device |
Drum lock device |
EWS-3 | 1.5~3.0 | 1.3 | 3.0 | 1.9 | Worm | ● | ● |
EWS-5 | 3.0~5.0 | 1.3 | 3.0 | 2.1 | ● | ● | |
EWS-7 | 5.0~7.0 | 1.3 | 3.0 | 2.1 | ● | ● |