Virgin bore forming pressure and its distribution: (1) forming a pressing bore pressure. Virgin bore pressure within the space is under pressure due to the virgin material after counterproductive to the corresponding part of the structure due to pressing machine. These reaction forces broadly grouped into two aspects: ① virgin bore spare volume reduction, forcing virgin material formed by compressing pressure. Spare volume reduced because axially pressing screw pitch followed by narrow, pressing screw root diameter increases and decreases in turn squeeze cage diameter. ② reduce the cake ring slit width Nanyang new screw press, increasing pressure on virgin materials for anti. Adjust the cake thickness can be varied to some extent, the internal pressure of virgin bore size. Press the effect depends on the characteristics of the pressure increase, the maximum pressure value and press time. Influence of the screw shaft rotational speed of the press of time is significant. As speed is increased in Nanyang automatic screw press, the press time is reduced, but the change is not a linear relationship. Made known, at low speed, the impact speed of press time great, after the speed increase, virgin material friction in the virgin bore, back to the material, rotating with the shaft phenomenon increased significantly affect the speed of press time, will reduce small lot. So Nanyang screw press, for certain models or virgin material conditions Nanyang screw press price changes speed and press time there is a certain range, unlimited increase speed and reduce the press time is impossible. On the practical application of the various models, the pre-press than a squeeze of high speed and time is short. China's production of ZY24 Pre-pressing machine screw shaft speed is 15 r / min, the average press time is about 60 ~ 70s, cake thickness 12 ~ 15mm; and ZX18 type primary crushing machine speed is 8 r / min, the average press time about for about 150 seconds, cake thickness of 5 to 8 mm. Automatic screw press Nanyang, Nanyang screw press, Goodwin machinery provided by Nanyang City, Qi Feng Machinery Co., Ltd. Nanyang City, Qi Feng Machinery Co., Ltd. (www.qifengjixie.com) (www.nyqfjx.com) strong, credible, Nanyang in Henan edible oil processing machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Goodwin machinery into the brilliant and you work for a better future!