When hydraulic press operation, handling good material from the hopper into the virgin bore embryos. In the next rotation of the seed oil press screw thread, and gradually feed end to the cake side direction forward. So that each segment within the pressing chamber volume gradually reduced; because pressing screw thread continuously push the embryo virgin material breech, so before blocking push to product pressure, compressing the material embryo, the oil squeezed out.
 Before using a hydraulic press, first of all should be ready aids and containers, check and adjust the belt tightness. Then start the motor, the machine empty running around 15min, check the speed of the pressing screw shaft. Average speed should be around 33dmin. Do you want to pay attention to when idling gear box gear meshing and sound normal, whether the bearings and motor parts properly. When press idling, the motor current should be about 3A. If the current is too high, you should immediately stop checks, adjustments and then boot. After the load is normal, around 50kg ready rapeseed or soy, ready to put into the hopper. Note: When you start squeezing feed not too fast, otherwise the sudden increase in pressure within the bore virgin, virgin not turn the screw shaft, causing blockage virgin bore, even to squeeze cage rupture, a major accident. So at the beginning of the compression, the feed should be evenly slowly into the hopper, so press be run together. So repeatedly, sustained more than 3 ~ 4h, so press the temperature gradually increased, and even take smoke (this is normal). At the start of the press virgin bore low temperature, can be slowly twist the handle on the withered section stud, increase the thickness of the cake, while improving water into juice billet, to be squeezed bore temperature. Rose to about 90 ℃, the normal operation of thecold oil press, the cake thickness can be adjusted to 1.5 ~ 2.5mm, and tighten the nut tightened.