The main principle of home oil press: press when the home run, after the selection of oil through automatically after a good wok, from the spout into the virgin bore. By the pressing screw turn make the material to keep the embryos in advance, be pressed. Since the parison in the press of virgin bore is in the state of motion, pressing bore under high pressure conditions, resulting in a great deal of friction between the material and the pressing screw embryos, embryos and virgin material bore, old virgin oil machine, so it can make the material embryo micro-friction between the material, resulting in relative motion. Press the home on the market a lot of old-fashioned press quotes, many brands are mostly priced at two thousand dollars. What points do we consider the purchase of your home when press it, the old press wholesale, Nanyang Goodwin machine as we provide the following, for reference. Look at the level of domestic small oil press oil extraction efficiency of oil extraction rate is the primary indicator of machine performance. Because there is usually about 5% of the oil is squeezed out of the physical means can not. Such as peanut oil content 44-48%, then the rate of domestic oil press oil at 33% -40% is reasonable sunflower and white sesame oil yield was 35-42%; rapeseed oil yield at 30 -42% or more. Oil yield low oil press is the result of design unscientific. Vintage oil press manufacturers | Goodwin machinery (Online) | old press provided by Nanyang City, Qi Feng Machinery Co., Ltd. Nanyang City, Qi Feng Machinery Co., Ltd. (www.qifengjixie.com) (www.nyqfjx.com) is Nanyang, Henan, edible oil processing machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Goodwin machinery leadership with the staff warmly welcome all inquiries negotiations to create Goodwin machinery better future.