ZHOUSHAN JINGAI ALLOY PRECISION CASTING CO.,LTD. Parallel twin screw barrel for twin-screw extruder machine Application: For the production of pipes, profiles, sheets, such as SPC floor, PVC wall board, PVC wood plastic, PE wood plastic, high molecular sheet, baking-free brick plate, high calcium plate, high calcium pipes, high calcium profiles, soft PVC sheet, PVC foam board, PP, PE, ABS, PVC, granulation and etc. Specification: Screw diameter: Φ45mm-Φ200mm, L/D ratio from 16-45. we can produce twin parallel screw and barrel for all brand extrusion, experienced engineer can be sent to your factory for measuremnt. Quality: 1: Nitriding quality------ base material: 38CrMoAlA(JIS SACM645) 2: Bimetallic quality-----Good abrasive& corrosive resistance. Heat treatment: Advance hardening and tempering Nitriding treatment Advantages of bimetallic parallel twin screw barrel: 1.Advanced nitriding technology 2.Duplex alloy spraying technology 3.High corrosion&abrasion resistance to prolong lifetime of screw and barrel 4.We use special alloy powders being sprayed and welded on the screw's ridge/flight,and use ZHOUSHAN JINGAI ALLOY PRECISION CASTING CO.,LTD. different alloy and welding methods for the screw of different functions. 5.For good plasticizing , it has many designs to meet customers' demand . Such as granual type , mutant type , wave type , barrier type , double screen typr ,shunt type , separation type , exhaust type and so on . Parallel twin screw barrel for PVC pipe extruder machine Application machine: PVC WPC Profile Pipe Extruder Surface treatment: Nitrided & Bimetallic Treatment Spare Parts Type: extruder spare parts Material: PVC, 38CrMoAlA SKD11 SKD61 Stainless Parallel Twin Screw Application 1)PVC pipe extrusion line; 2)PVC sheet extrusion line; 3)PVC profile extrusion line 4)WPC extrusion line; 5)PVC granulation/recycling line; 6)PVC foaming board production line; The material can be new or recycle, the material can compound calcium power 5%-300%.