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• Exporting Office: 12F, Huaihai Road West, Shanghai, China
• Factory: Picheng World Industrial Park, Danyang City, Jiangsu Province, China
①The four-column hydraulic press ensures the concentricity between the output shaft and the machine, or adopts a flexible connection.
②Before the four-column hydraulic press starts the oil motor, the casing should be filled with oil. The housing should always be filled with oil to provide internal lubrication. Otherwise, the oil motor will be damaged and a big mistake will be made.
③Leakage connection: The leakage pipe of the casing must be full diameter, without throttling, and directly connected to the oil tank from the leakage port to keep the casing full of oil. The piping of the leaking pipe must avoid the siphon phenomenon, and the piping of the leaking pipe must avoid the siphoning phenomenon. The oil drain pipe of the four-column hydraulic press motor should be connected to the oil tank separately, and it is not allowed to be connected to the oil return port.
④The external drain pipe of the four-column hydraulic press should ensure that the oil motor casing is filled with oil to prevent the oil in the casing from returning to the oil tank when the machine is stopped.
⑤ Generally, the oil drain port is not connected to back pressure. If back pressure is required, the value should not exceed 0.16-0.20MPa, otherwise the oil pressure will break through the low pressure seal, such as the shaft seal.
⑥ The four-column hydraulic press should ensure that the low-speed and high-torque motor has sufficient oil return back pressure. Special attention should be paid to the inner curve type oil motor. Usually, the oil return back pressure should be 0.3-1.0MPa. The higher the speed, the greater the oil return back pressure. Seriously cause damage.
⑦ The working oil of the four-column hydraulic press should be clean and of appropriate viscosity. WORLD Press Machine official website www.pressmachine-world.com, please indicate the source for reprinting!
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