- requires mechanical assistance
- heavyweight components
- 2 to 34 meters
- lifts up to 1600 tonnes
| | - suitable for long span lifts
- lightweight components
- 6 to 45 meters
- lifts up to 20 tonnes
| | - highly portable
- lightweight components
- 0.3 to 2 meters
- lifts up to 4 tonnes
- Patent Pending: PCT/GB2007/000797
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