随着塑料工程的不断发展，对产品表面质量及舒缓老化的要求不断提高，以及对塑料管材和型材色彩要求的不断提高，为了满足客户的要求，又要考虑制造成本，因此“型材表面共挤涂层”以及管材共挤技术应运而生。SJ-35×25型单螺杆塑料挤出机就是专配于共挤的新产品，本机具有塑化好、质量稳定、制品密实度高、适应范围广等特点，配不同的螺杆，可加工RPVC、PMMA、UPVC、PE又可加工橡胶制品。 本机设有自动温控、风强制冷却器等装置，主电机采用交流变频无级调速。 本机挤出量为10kg/hr-25kg/hr With continuous development of the plastic project, the requirement on the products surface quality, ageing resistance, the color of the plastic tubing and the sectional materials increase continuously. In order to satisfy the demand of the customers as well as considering the cost, the sectional material surface co-extruding coat and tubing co-extruding technique appear. SJ-35×25 type single screw plastic extruder which has the characteristic of good plasticization, steady quality, high dense degree and extensive applicable range is the new products that are specially matched with co-extruding, can process RPVC, PMMA, UPVC, PE and rubber products if it is matched with different screws.