2017 hot sale ME type heavy duty box mobile Shipbuilding gantry crane for boat lifting

Product Description heavy duty box mobile Shipbuilding gantry crane is a gantry crane of large lifting capacity, large span, multi-function, high efficiency. heavy duty box mobile Shipbuilding gantry crane is used in the step-by-step transportation of the ship body, abutting joint as well as air or in-place turning. The main beam and branch leg are of box structure. The main technical characteristics: 1, With single crane, lifting crane,air turning, air level micro switch and other functions 2, Door frame has a single main type and double girder type two kinds for the user to choose from, for the rational use of material, the main beam with variable cross-section optimization design. 3, Door frame rigid leg has a single column and double column type for the user to choose from . 4, Upper trolley is equipped with double main hook, respectively on two lateral girder, but at the same time independently or lateral movement 0 to 2 m 5, Under trolley has main and secondary hook , placed in the main girder center below . 6, All of the lifting mechanism and operation mechanism adopts frequency control of motor speed . 7 , In order to prevent the storm,heavy duty box mobile Shipbuilding gantry crane is equipped with the wind-poof device , shcu as safe and reliable clamping rail, anchor and anchor chain and so on. 8, Upper and under trolley can work through each other. 9, At the side of rigid leg, top of the main girder with jib crane maintenance, to complete the upper and lower the car's maintenance work 10, For the convenience of drivers and maintenance personnel computer, there has elevator in the rigid leg. Packing & Delivery 1. Electric parts are packed by high quality plywood crate, to reduce distortion in conveying; 2. Main beams, end beams and electric hoist are packed