Based on SK series, is designed specially for the use of plastics industry. Therefore, many problems have been solved, for instance: incapability to work continuously, in case of sufficient wafter to be draw-out, dirts is resulted from sewage, impossibility to restart work after long pause. It is widely used in Tubing and Molding machinery.Items:SK-0.15A、SK-0.3A、SK-0.5A、SK-0.8A、SK-1.2A、SK-2A、SK-3A,Motor power:0.55~5.5KW,extract capacity :0.15~3(m3/min),Limit vacuum:-0.095MPa。