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      Product features
      
                    
      Diameter: from 15 mm - 500 mm
      Maximum length: ≤10000mm

      Mainly used in film blowing, pipe, profile, sheet, granulation, cable and other single screw extruder products.


      Extruder screw barrel can be mainly subdivided into:
      1. Screw barrel of film blowing machine;
      2, blow molding machine screw barrel;
      3. Pipe screw barrel;
      4. Granulating screw barrel;
      5, PP/PE packing with screw barrel;
      6, sheet, profile screw barrel;
      7, wire and cable screw barrel

      
                
      
                
      
            
      

            
      
                
      
                    
      Extrusion screw - Extruder screw barrel
      
                
      
                
                
      
                
      
                    
      
                        
      screw:
      1. Normal nitrided (38CrMoAla/SACM645)
      2. Double alloy thread spray-welding bimetallic
      3 full coverage of tungsten steel screw wlfram steel screw
      4. Full hard series hard scries type

      Cylinder barrel
      1. Normal nitrided (38CrMoAla/SACM645)
      2. Internal hole centrifugal casting alloy bimetallic barrel(ABC class 3 and
      3. hard series barrel

      Technical indicators
      Surface hardness: HV≥290
      Nitriding hardness: HV850-1000
      Nitriding depth: 0.45-0.7mm
      Nitride brittleness: ≤ first grade
      Screw straightness :0.015mm
      After nitriding surface chromium plating hardness: ≥900HV
      Chromium plating thickness: 0.05-0.1mm
      Double alloy hardness: 60-70 HRC
      Depth of alloy: 0.8-2.0mm