How to use hydraulic oil press properly

The hydraulic oil press has a large area, consumes less power, and has a good quality of oil cake. It is widely used in rural areas in China. It is used to squeeze oils such as peanuts, soybeans, cottonseeds, and rapeseed oil for food. Now its use of knowledge is introduced as follows: 1, inspection and debugging 1.1 Before the oil pump test, first add clean mechanical or vegetable oil in the oil tank, press the handle up and down to see if the piston of the oil press machine rises. If the piston does not rise or the handle is effortless when pressed, check the valves of the tank and remove air from the lines. 1.2 Perform pressure test of the whole machine. The pressure used in the test is 1.25 times the working pressure. Check that the piston extends to the maximum working stroke. Regulate for 15 minutes. The drop value of the pressure gauge shall not exceed 4% of the test pressure; There should be no leakage phenomenon; after all the pressure is removed, the pressure gauge pointer will return to “0” position, the part shall be not damaged, the tie rod shall not be significantly deformed, and the moving parts shall not be stuck. 1.3 Reliability test of the safety valve, adjust the safety valve to working pressure (upper left + 5, lower left + 1 MPa), continuous test 5 times, needle valve opening and closing sensitive, pressure gauge reading should not be low after each jump Rated working pressure. 2, using the operation 2.1 According to different oil, grasp the billet into the pressing temperature and moisture content. 2.2 When pressing, lower the lower top plate to the lowest position, loosen the movable tie bar nut, pull out the two movable pin shafts, and turn the movable pull bar on one side. After the cakes are loaded into the squeezing clams, the movable lever is turned back to the original position, pre-pressed until the oil stops, the piston is returned, and the remaining cakes are loaded to form the regular squeezing (generally 20 pieces of cake can be filled with hydraulic press). . 2.3 When pressing the handle, pressure should be light pressure and pressure must be applied evenly. Do not use excessive force. Otherwise, accidents may occur easily. 2.4 Press oils with high oil content (such as peanut kernels and rapeseed). Use the low-pressure pump to work for the first time and use the high-pressure pump to work after the oil is discharged. 2.5 If it is found that the pointer of the pressure gauge is not back to zero during work, it shall be verified, repaired or replaced in time. 2.6 When the oil return valve is opened, the oil will flow back to the tank automatically and the piston will drop automatically and it can be unloaded. 3、Maintenance and maintenance 3.1 The pressure oil in the oil pump should be filtered. The concentration should not be too large. It is best to use rapeseed oil, soybean oil and peanut oil, etc. The use of gasoline, kerosene and other flammable oils is prohibited. 3.2 The fuel tank should be kept clean. Clean the fuel tank every 3 months or so, replace the oil, or remove the oil from the tank before use. Impurities in the oil will cause the oil pump to wear and cause blockage in the oil circuit, affecting the operation of the oil press. 3.3 Handle and oil pump coupling pin, always add oil to reduce wear. 3.4 The oil press should be installed indoors to avoid open air, rain, and rust and oil pollution. 3.5 For long-term parking, the machine should be wiped, oiled, and covered with a protective cover.

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