In order to support the weight of pneumatic, hydraulic and electric tools, the use of a spring balancer should be considered. The performance of the tools will be speeded up due to good balance and reduced operator fatigue, when using a spring balancer.
- When heavy tools/machines have to be portable.
- Fitting of centre lathe chuck.
- Transportation of parts in a production line.
The models ELF and TW from TW-9 upwards have a safety mechanism which starts working in case of spring breakage.