... in case power is cut off Product introduction : 1. SJY series self-propelled lift platform is two-phase of thress-phase ... : 300kg , 500kg , 800kg , 1000kg Installation guide: Installation guide fixed Table-board Material: With 3mm pattern steel plate. The Pumping Station ... quality . Relying on four basic parameter ( lift height , load weight , table size , power ) self-propelled aerial work table