It is used for blowing the various plastic film of low density polyethylene(LDPE),high density polyethylene(HDPE)and linear low density polyethylene(LLDPE)etc,which are widely used for packing industrial,It is widely applied to producing the packing bags for foodstuff,clothing,rubbish bag and vest ones.

   Characteristics: The cylinders and the screw stems of model SJ-45-50 extruder are made of high-quality alloy steeel with optimum hardess and strong corrosion resistance after precision finishing and nitrogen treatment.FW-600 auxiliary machine can be freely andjusted within the limits of 700mm according to the technological requirements of different materials,and is fitted with a plug-in aplate mechanism for making vest bag.The double-rolling and double-cutting coiling untt adopts torque motor to keep proper tension and make aven and roll-changing easy.