The main technical performance parameters: Starting weight, lifting height, decentralization depth, span, agency working speed, working level, and the total weight of the crane or wheel pressure. 1. Starting weight: maximum allowable weight lifting crane to work. 2, lifting height: spreader distance limit position and lower limit position. 3. Span: the distance between the vertical centerline of the crane at both ends of the wheel 4, agencies working speed (5th gear speed) (1) Lifting speed: is the lifting mechanism of the motor at rated speed, dual-beam bridge crane, take It was loaded with lifting device speed. (2) Crane speed: is the traveling mechanism of the motor at rated speed, the crane speed. (3) the car speed: is the actuator motor car running at rated speed, lifting speed car. 5, the working level: Indicates the number of full load level and the number of cranes lifting load lifting work busy the whole machine work status indicators, 50 t double-girder cranes, working-level crane into A1-A8 total of eight levels, double-beam crane Monopoly, light level (A1-A3), intermediate (A4, A5), weight class (A6, A7) Extra Heavy (A8). 6, wheel pressure: bridge weight is in an extreme position and trolley car weight and the weight of the rated maximum vertical pressure on the cart wheels. Double girder overhead crane in the plant used more, mounted on a wall or column at both ends of the plant, relying on the car's lateral and vertical movement to achieve weight lifting, loading and unloading operations at the metallurgical plant is the necessary equipment. Environment: generally applicable to the ambient temperature -10 ℃ to + 50 ℃, and at a temperature of 40 ℃ relative humidity less than 50, the lifting of the molten metal for forging hook, hook plate radiant temperature does not exceed 300 ℃. Working level: A7, A8 for relatively busy metallurgical foundry. Henan double girder overhead crane at both ends of the main beams of the longitudinal seam weld, the main beam has four longitudinal seam weld sequence by the case camber and lateral bending of the beam may be. Camber enough situation, you should cover about two longitudinal weld seam under, you can start straight solder from the tip when welding, Hengshui double girder cranes, manual welding should start from the middle to both sides symmetrical welding. Arch too large, it is necessary first of all on the cover of two longitudinal weld seam, lateral bending too much when the outside of the first welding seam, is too small to be the first welding of the weld. Double girder crane trolley | generous heavy (Online) | Hengshui double girder 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.