3 Layers Co Extruding Film Blowing Machine

3 layers co extruding lab film blowing machine This 3 layers film blowing machine structure is compact, simple operation, can be used for single and multi-layer blown film, can be applicable to all polymerdispersion research. This film blowing machine is mainly used for testing thefilm blowing feasibility of polymer materials and the colloid status containedin the materials, as well as the dispersibility of colored dispersion, and controlled mixture Parameters: 1. Single screw extruder  - 3 sets  Screw diameter                            Φ 20   Length diameter ratio  1:28  Screw speed  0 - 95 rpm frequency control  Screw/Feeding barrel material: 38CrMoAl chromium-molybdenum steel.With the surface-layer processing of tempering, nitriding, chroming, polishingand super-precision grinding, the hardness HRC55~60, roughness Ra≤0.4μm,nitriding depth≥0.6mm. Electric control system: PLC programmable color touch screen,man-machine interface operation system, can dynamically display and monitorextrusion process, including temperature control, driving, pressure,interlocking spreading function. 2. Film blowing tower  Diameter of dies  Φ 30  Driving rolling speed  0.5 - 5 m/min adjustable