Application This product is widely applicable in factory, warehouse, logistics etc. but it strictly forbid to use in such dangerous operating as easily combustible, explosive, corrosive, heat liquid, overloading, dust, etc. Technical characteristics Trinity-drive system: the electric appliance adjusts speed without contact or spark module, and fulfills converter function, including mini-speed and double-speed, which makes traveling and lifting very steady; it is equipped with such protection devices as alarm device to overloading, obliquely hanging, second protecting preventing hook clashing the top, protecting the current lacking of any phrase etc. The operation board adopts 12V safe voltage to fulfill multi-function of protection to hoist. The electric controlling can be used more than 2 million times when the voltage is 380V+5 ~10%. Choosing principle Using industry, times of starting, pushing-on per hour, the practical time per day (h), it must be marked that the electric hoist has heat-efficiency, the times os starting, pushing-on are Gn/2¡Ö80 times/h, and Gn/1¡Ö20 times/h. When the temperature is 50 and it is grim environment, the times per hour should be divided two.