


The oil cylinder is used to drive and execute work in the hydraulic freight elevator. After the hydraulic oil is compressed to high pressure by the oil pump station, the oil cylinder is directly raised and lowered to achieve the lifting function of the hydraulic freight elevator. Generally, freight elevators with a load of less than 2 tons are equipped with an oil cylinder with an outer diameter of 80mm. The quality of the machine also determines the quality of the whole machine. Therefore, the factory purchases the cylinder after actual use, and finally selects the manufacturer that provides the cylinder for a long time. Hydraulic freight elevators are divided into single-track single-cylinder freight elevators, double-track single-cylinder freight elevators, and double-track double-cylinder freight elevators. The double-track double-cylinder freight elevator is equipped with 2 oil cylinders. The longest single cylinder of the oil cylinder is produced by domestic manufacturers up to 11 meters, which means that the hydraulic freight elevator can be raised to within 22 meters, and other multi-section oil cylinder designs are required within 22 meters. The sealing ring of the cylinder is configured by the cylinder manufacturer.
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