Screw Barrels

SCREW BARREL FOR PLASTIC INJECTION AND BLOW MOULDING MACHINES

A screw and barrel comprise the essential components of a screw extruder, widely used in industries like plastics manufacturing. The screw Barrel Manufactured by Mahira Polyglobal is a helical rod, that rotates within the cylindrical barrel, conveying raw material from the hopper toward the die while applying heat and pressure to melt it. The barrel, heated to facilitate melting, provides containment and pressure control, housing various temperature zones for material processing. Together, they form the core of the extrusion process, transforming raw materials into desired shapes or forms efficiently and effectively. Are you looking for Screw Barrel Manufacturer Near You? Look no further! Get in touch with us

Ningbo Superior Machinery and over 30-year-old factory with ISO 9001:2008 certificated, manufacturing screws, barrels for injection and extrusion processing. Specifications of our Ni-based bimetallic barrel: Basic Material for body: superior pre-hardening material 4140 Alloy powder: Nickle-based self-melting alloy powder from American Wall Colmonoy Corporation Processing: vacuum sintering cladding ( we're the first and unique Chinese factory applying this technology to barrel production since 2009!) Hardness: 56-60 HRC Service life: 3~6 times than bimetallic barrels processed by high temperature centrifugal casting Application: halogen-free plastic, the high abrasion, corrosion materials adding high fibre, carbon fiber, mineral fiber, ceramic, magnetic powder, metal powder etc. Advantage: more stable molecular structure, higher density of the alloy power than common bimetallic barrels.

Yizumi injection molding machinery ranges from 60 to 3500 tons. Such as: SK Series : 90-480T A5 Standard Series : 60T â?? 560T A5 Standard Series : 60T â?? 560T SM Series: 90-480T

custom difference size of parallel twin screws and barrel

Plasticizing Screw - Most of the screws are made using Nitraded steel (EN-41B), chrome alloy steel, H-13 tool steel or stainless steel. Special corrosion-resistant alloys are also available. For each type of screw, we can advise you on a specific profile according to the material processed and its processing conditions. Our engineers are also available to advise you on the choice of steels and treatments.

Alloy screw Introduction: 38CrMoAlA nitrided spiral-spray nickel-based alloy It adopts Germany imported automatic plasma surfacing machine for alloy surfacing welding. The thickness of the alloy is more than 1.5mm, the hardness is HRC50~56, the welding strength is high, the structure is compact, and the screw wear resistance, high temperature resistance and corrosion resistance can be improved. Basic parameters: Screw alloy hardness (HRC): 48-58 Wear resistance: good Corrosion resistance: poor Scope of application: Applicable resin with 15% glass fiber below the plastic Add glass fiber 15% or less PC, PMMA, PP, PP fireproof, PS, AS, ABS, PVC, PET, PO, POM, AS, TPU, TPR, TPE, PC+ABS Alloy barrel nickel base alloy Wear and corrosion resistant Basic parameters: Hardness (HRC): 55-60 Wear resistance: excellent Corrosion resistance: excellent Temperature range (°C): �450 Scope of application: Production of viscous, wear-resistant and corrosion-resistant resin General general resin and engineering resin contain 50% glass fiber, PE, PP, ABS, AS, PS, TPE, PC, PEI, PEEK, PPS, PAR Special engineering resin, PA, PBT, LCP containing less than 45% of glass fiber. Ingredients and processes: Alloy composition: Ni+Cr+W+B

Single Screw and barrel for Injection Moulding Machine Nitride hardness HV850 â?? 1000 Screw diameter Range Φ20~Φ300mm Max. Barrel Inner Bore Diameter 500mm Nitride case depth 0.45 - 0.7mm Screw bimetallic depth 0.8-1.2mm Barrel bimetallic depth HRC 58-60

Supplier: Screw barrel