Protective effects of zero double girder crane

portal harbour cranes generally consists of mechanical, electrical and metal structure consists of three parts. grabbing crane in the indoor and outdoor industrial and mining, iron and steel industry, railways, ports and logistics flow and other departments and establishments have been widely used in the double girder crane Also note that the protection of its zero
A crane used for many years, its shock deflation, poor contact sometimes produce false failures. In this case the operator will get an electric shock replaced with a new, not startup problems can be solved. In checking of the cam controller arrangement, the only When each controller handle in zero position, lifting, cars and carts controller zero contact only in the closed state.