China Factory Price Corn Oil Making Machine Oil Press Machine Cold Press Oil Extraction Machine Oil Expeller Machine

A household oil press is a small oil pressing device designed specifically for household users. It allows users to press various oil crops at home, such as peanuts, sesame seeds, flaxseed, rapeseed, and (although not very common but technically feasible) corn, to extract pure vegetable oil. Household oil presses usually use the working principle of cold pressing or hot pressing. Cold pressing is the process of pressing oilseeds at lower temperatures to retain more nutrients and natural flavors; Hot pressing, on the other hand, increases oil yield and fluidity by heating the oil material. Regardless of the method, the oil in the oil is squeezed out through physical pressing.

The working principle of a corn oil press mainly involves the physical pressing process. After the processed corn enters the press chamber of the oil press, the rotation of the press screw continuously pushes the corn embryo inward for pressing. Under high pressure conditions in the squeezing chamber, significant frictional resistance is generated between the embryo and the squeezing screw, as well as between the embryo and the squeezing chamber, resulting in friction and relative motion between the embryo particles. The heat generated by this friction helps to promote the thermal denaturation of proteins in the embryo, destroy colloids, increase plasticity, reduce viscosity, and thus make it easier to precipitate oil. At the same time, due to the special design of the snail press (the root diameter gradually increases and the pitch gradually decreases), the corn embryo can be flipped outward while advancing forward, improving the efficiency of oil pressing.