Product Details

Specifications

Screw and barrel for HDPE/LDPE/HHDPE
1) MATERIAL: 38CRMOALA
2) CHARACTERISTICS: WEAR RESISTANCE AND ANTI-CORROSION

Topic: 28mm screw and barrel for bakelite /rubber &plastic machine

Product Description

Injection screw and barrel size:

Diameter of Screw: 15-250mm

Mould Clamping Force: 250-32000KN

Shot Weight: 15-50000g

Screw can be mated with different heads

Barrel can be mated with different nozzles

The compression ratio of the screw can be designed according to different products and mixtures

Screw type

Common type,Gradual type,Sudden type, Barrier type,Pinned type,Exhaustive type,Separate type etc

Screw and barrel Based information

Based Material	1) 38CrMoAlA 2) Cr12MOV 3) 4Cr5MoSiV1 4) 42CrMo 5) 9Cr18MoV 6) 40Cr
Double-alloy level	Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5%
Surface Treatment	Heat Treatment Bimetallic Treatment High Frequency Quenching Treatment Nitriding treatment(120 Hours) Hard Chrome Plating treatment Vacuum quenching treatment
Technical parameter	φ40mm to φ300mm Ratio of length to diameter: 8-20 Depth of Nitration: 0.5-0.8mm Hardness of Nitration: 950-1020Hv Fragility of Nitration:Less than one grade Linearity of Screw: 0.015mm Roughness of surface: Ra 0.4um Thickness of bimetallic: 2-3mm Hardness of Bimetallic: HRC 58-62 Hardness after Hardening & Tempering: HB260-290 Hard-Chrome plating thickness: 0.03-0.08mm Hardness of Hard Chrome Plating: >950HV Linear axis limit: ≤0.02mm
Material Application	1)General Plastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(Glass Fiber) 4)Flame-resistant Reinforced Plastics 5)Modified Engineering Plastics 6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc
Our products advantages	1)High productivity 2)Wonderful plasticizing 3) low energy consumption 4)Wearable and Durable 5)Fast and On time delivery 6)Best customer service
Delivery time	Within 20 days after confirmed
Guarantee time	More than one year

Physical Characteristics of Bimetallic Screw

Characteristics	Alloy	Hardening (HRC)	Base material
Abrasion resistance	Fe+Ni+Cr+B	58-64	45/40Cr
Anti-corrosion	Ni+Cr+Co+B	50-58	45/40Cr
Abrasion resistance &Anti-corrosion	Fe+Ni+Cr+Co+B	56-64	45/40Cr
High Abrasion resistance &Anti-corrosion	Ni+Cr+Wc+Co+B	58-67	45/40Cr

Material 38Crmoala Screw Feature

1) We are a professional company specialized in manufacturing many types of screw, the barrel can be applied on all types of injection moulding machine,rubber hot-feeding extruder, rubber cold-feeding extruder, pin barrel cold feed extruder, plastic extruder with different specifications.

2) The models of screw include:
Variable pitch and variable depth, variable pitch and equal depth, variable depth and equal pitch, and equal depth and pitch.
Groove multi-die type, composite type, mixing type and separating type.

3) The material of screw: manufactured with high-quality nitro alloy steel, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.

Jinsheng factory overview

Process the screw

Whole work shop

Centrifugal

Processing

Work flow

Product Application for different screw and barrel

Picture for Mixed type single injection screw barrel

Packaging & Shipping

Packing

1.screw and barrel are coated with a layer of oil.
2.screw and barrel are wrapped in a layer of plastic film.
3.screw and barrel are fixed in strong wooden case.
4.Volume for one set of screw and barrel is about 0.5cubic meter -5 cubic meter

Shipping

Means of transport: Ocean, Air, Express,we can operate by customer request.