Jaso introduces very large new tower crane

摘要

Jaso has launched a new large tower crane, the J800.48, second in size only to the J1400 launched in April 2019. It follows the same low top design principle as the larger model and is designed for loads requiring a capacity of between 18 and 21 tonnes at 40 metres with a maximum boom length around 60 metres. With a shorter jib it has the capacity for PPVC (prefabricated pre-finished volumetric construction) where typically module loads of 35 to 40 tonnes are needed. (See tower cranes feature on page 36 for more on PPVC.) Capacity with double rope reeving is 48 tonnes or 24 tonnes with single reeving. Capacity at the end of an 80 metre jib is 5.1 tonnes. The standard hoist motor is 110 kW while the optional 132 kW unit gives a maximum line speed of 150 m/min.