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The SJ-B50 rotary die film blowing machine is designed for blowing high- and low-pressure polyethylene. It is widely used in composite film, packaging film, agricultural covering film, and textile and garment bags and films. The main motor utilizes variable frequency drive, which increases speed stability and saves 30% energy. The screw barrel is constructed of 38 chromium-molybdenum aluminum and is nitrided. The traction frame is a lift-type design, ensuring optimal cooling for both large and small film sizes. Optional features include: 1) Automatic suction device
, 2) Embossing wheel, 3) Surface treatment, 4) Rotary die head , 5) Air compressor , 6) Quick screen changer , and 7) Automatic lift . Main Technical Parameters : Model SJB50 : Screw diameter 50mm, Screw aspect ratio 28:1, Screw speed 10-100 rpm, Main power: Maximum output 11 kW 35kg/h film maximum folding diameter 600mm film single-side thickness 0.01-0.10mm total power 22Kw machine weight 2T overall dimensions 4000 x 1800 x 4600mm