Material:Hot galvanized Aluminum alloy Platform size:2.5m 5m 6m 7.5m Certificate:ISO9001:2008 CE Rated load:250 50kgs Lifting speed:9-11m min sw-fc-8.3 8.6 Voltage:220V 380V 415V 50 60HZ Hoist power:1.5 2.0 2.2KW Lifting height:100m 300m Max Warranty:the whole machinery is one year;some mainly components are 6 years