It is used for blowing various plastic tube of LDPE, HDPE and LLDPE materials. The final products are widely for packing liquid, industrial products, garments and textile etc. The cylinders and screw of the extruder are made of high-quality alloy steel with optimum hardness and strong corrosion resistance after nitrogenization treatment and precise manufacture. It also goes with working platform which makes the operation easier and is equipped with bubble-stabilizing ring. The winding unit can do double-winding and double-cutting and adopts torque motor that can retain proper tension, even winding and convenient roll-changing. Main Technical Parameters: Model Item SJ-55/FM800 SJ-60/FM1000 SJ-65/FM1200 SJ-80/FM1500 SJ-100/FM2000 Diameter of screw(mm) 55 60 65 80 100 L/D ratio of screw 28:1 28:1 28:1 28:1 28:1 Speed of screw (r/min) 10-100 10-100 10-100 10-100 10-100 Output (kg/h) 50 65 70 86 140 Power of main motor (kw) 15 18.5 22 30 40 Specification of die head (mm) Φ100/Φ150 Φ100/Φ180 Φ120/Φ220 Φ150/Φ300 Φ500 Rotational mode of machine head Continuous rotation Continuous rotation Continuous rotation Continuous rotation Continuous rotation Thickness of single-layer of film (mm) 0.01-0.10 0.01-0.10 0.01-0.10 0.01-0.10 0.01-0.10 Max. layflat width of film (mm) 800 1000 1200 1500 2000 Gross power (kw) 26 30 42 56 88 Weight of machine (kg) 2300 3000 3800 4600 6000 Installing dimensions (L?W?H) (mm) 6000?2000?4000 6500?2200?4500 6800?2400?4800 7000?2700?5500 8000?3200?7600