Cranes Machinery Co., Ltd(CMC)
Changzhou Cranes Mechanical Electrical Engineering Co., Ltd.
Mobile no. 0086-18001505166
Add: No.8-20 Shunyuan road, Xinchen industrial park, Xuejia town, Xinbei district, Changzhou city, Jiangsu province, P.R.China.
300T Goliath Gantry Crane
The 300T145m Goliath Gantry Crane is applied for hull constructions in shipyards (such as ship docks, slipways and etc.). The Goliath Gantry Crane has functions of hoisting up and down, swinging, turnover in the air by sections. The turnover by sections and closure operation are the special features. By means of the turnover operation by sections through two trolleys, the adjustment of hoisting up and down will be made first to have the Upper trolley bear the whole sections. The Lower trolley with no load will go through the underside of the Upper trolley and re-tie on the other side of the section. Finally the 180 degrees turnover operation can be completed by the Upper and Lower trolley's hoisting up and down, and the horizontal traversing movement of the Upper and L¨®wer trolleys.
The main girder of the Crane is of ladder-shaped monobox girder structure. Four rail tracks for the Upper and Lower trolleys traversing movement are arranged at upside and downside of the monobox girder. The maximum Twin-Lift capacity of the two trolleys is not more than 300T. During the turnover operation in the air, the section weight is not more than 300T. The rigid legs are connected with the main girder by the high-strength bolts. An elevator can be provided inside the rigid leg, and the operators can take the elevator to the inner side of the rigid leg from the bottom of rigid leg directly. The top of the main girder can be reached through ladder. Walkways will be provided on the main girder for the operator and maintenance persons access. The flexible legs are of triangle cannulation structures, and the two round pipes are equipped with ladders so that the operator can reach the top platform of the flexible leg or top of the girder directly. The flexible legs are connected with the main girder by the flexible hinges. The Gantry-long-travel mechanisms have totally 64pcs wheels, among which 2x16pcs are at the side of the rigid leg, and 2x16pcs are at the side of the flexible leg. The wheel bogies are connected with the supporting legs (the rigid leg and the flexible leg) through balance girders. The operator's cabin with good visual field is installed at the lower side of the upper trolley, and from the operator¡¯s seat, the movement of the hooks within the operation range can be clearly observed.
A maintenance crane is equipped on the crane, which is located on the top of the main girder and at the side of the rigid leg. The maintenance crane¡¯s lifting capacity, boom length and slewing angle will meet the maintaining requirement for the Upper and Lower trolleys.
The crane is powered through 3-Phase 6.6kV(¡À10%) 50Hz high-voltage, which is fed by the Power Cable reel. The Upper and Lower trolleys are powered by means of cable pulley moving cable device which is located on the main girder.
Main technical particulars