Machine Features: -The screw with high potency melt to make sure the material well mixed. -Adopt frequency control of motor system to reduce the power consumption. -Adopt Parison thickness controller Moog 100 points, to make thickness even and adjust the tank weight in big span. -Fully automatic, easy to operate, two women can operate machine, whole production line need 3 or 4 person only. -High output versus Roto molding machine -Save raw material 25% - 35% versus Roto tanks. -Perfect impact resistance versus Roto tanks. -Multi layers co-extrusion. -The mechanical arm can take out the product automatically.