1. Double cantilever gantry crane cantilever gantry crane: The most common type of structure, the effective use of its force structure and site area are reasonable. 2. Single Cantilever Crane: This form of structure is often due to space constraints and is selected. The cantilever gantry crane gantry crane is based on the requirements and conditions of underground construction, developed on the basis of common gantry crane cranes on special door hanger bearings, designed to flip down the soil during underground construction and lifting items . Crane from the car, the door frame, traveling mechanism, hydraulic flip agencies, cab and electrical equipment. A small car with a hydraulic tilting mechanism, the mechanism consists of hydraulic station and turn hook slag composition. Intermediate hanging beam with a 20t crane for lifting general objects. Traveling mechanism uses eight 4-drive form. Fixed on pallets by vertical reducer motor drives the wheels gantry crane technology, and a wind with a rail clamp, the crane work partial hanging gantry cranes, rail clamp jaws leave the track gantry cranes, When the crane stops working, the operator will clamp down and grip the track to prevent the crane slide. Pour the soil to be based on the direction of the construction site may be. Partial _ generous gantry crane hanging heavy (certified) _ gantry crane provided by generous heavy machinery Co., Ltd., Henan Province. Heavy Machinery Co., Ltd., Henan Province, generous (www.hnqizhongshebei.com) (www.hnqizhongshebei.com) is Zhengzhou, engineering, construction cranes leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In heavy generous leadership with the staff warmly welcome all inquiries negotiations to create a better future for heavy generous.