New boom raiser system
Manitowoc?s latest innovation to help customers get the most out of their investment is a Boom Raise System (BRS) for the 400 t (440 USt) Manitowoc 16000 wind attachment. The system is designed to raise longer wind attachment boom lengths that are needed to install nacelles on 100 m wind turbine towers without the aid of an assist crane.

The BRS allows end users to lift up to 107 m (351 ft) of wind attachment boom plus 7.6 m (25 ft) of extended upper boom point. Previously, customers were limited to 92 m (301 ft) plus the extended upper boom point (EUBP). The maximum capacity with 107 m (351 ft) of boom plus 7.6 m (25 ft) of EUBP at a 20 m (65 ft) operating radius is 87.9 tons (96.8 USt).
The BRS utilises a large hydraulic cylinder housed in a special 3 m boom insert section that attaches to the boom butt. The boom raising cylinder works in conjunction with the boom hoist by exerting an upward force on the boom. This is achieved by extending the cylinder downward onto prepared ground/matting. Once the boom angle is 38 degrees, the boom hoist fully takes over.