Profile: Kingdom Machine Co.,Ltd. is a manufacturer & provider of whole plant equipments for making plastic film and plastic bags. We manufacture film blowing, bag making, stretch film, printing, slitting & rewinding, bubble film, label printing, and recycling machines. Our double color film blowing machine is used for blowing various low density polyethylene (LDPE) and high density polyethylene (HDPE) color striped plastic film. The cylinder and the screw stem of this extruder are made of alloy steel with optimum hardness & strong corrosion resistance after precision finishing & nitrogen treating. Our 600 auxiliary machine can be freely adjusted within the limits of 600 mm according to the technological requirements of different materials, and is fitted with a plug-in plate mechanism for making vest bag. The coiling unit adopts torque motor to keep proper tension and make rolling & roll-changing easy. The SJ-B50-55-65-65-1 rotary machine head film blowing machine set is used for blowing high-low pressure polyethylene, which is widely used for producing laminating, packing & agricultural covering film for textile and clothing & other packing materials. The main motor adopts frequency control of motor speed to improve the speed regulating stability of main motor. The screw and material barrel adopt 38 chrome-molybdenum aluminum which has been nitrogen treated & the traction frame adopts lifting type. The SJ-A PE high & low-pressure blowing film machine consists of an extruder, a cylinder and screw rods, and is made up of alloy steel. The specially-designed screw is of sound quality in plasticizing, which helps in increasing the production capacity. It is applied for blowing plastic films like low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE).