Environment of Rail Mounted Portal Cranes:
1.Power source is three-phase alternating current, rated frequency is 50hz,rated voltage is 380V
2.The temperature in the working environment should be in the scope of -200C +45oC and the relative humidity is no higher than 95%(with dew)
3.In-service, the wind speed should be no higher than 20m/s; and out of service wind speed should be (35-42)m/s
4.The installation of the crane rail should according with the requirement of Jt5022
Crane Selection Guidelines:
- How much weight do you want to lift?
- At what radius must this lift take place?
- What is the maximum boom length?
- At what speed do you want the load to be raised or lowered?
- How is the unit to be powered: electric, diesel, customer provided?
- From what location is the unit to be controlled?
