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1.ordinary nitriding screw and barrel, 2.bimetallic screw and barrel, 3.high speed screw and barrel - details see: https://www.machineto.com/single-screw-barrel-extruder-screw-barrel-bimetallic-screw-barrel-plastic-rubber-machinery-parts-10334589

We can produce screw and barrel according to your design,

Also we can design screw and barrel according to your requirements.

Screw and Barrel Disply

Technical specifications

Technical Index

Hardness after hardening and tempering:	HB280-320
Nitrided Hardness:	HV850-1000
Nitrided case depth:	0.50-0.80mm
Nitrided brittleness:	less than grade 2
Surface roughness:	Ra 0.4
Screw straightness:	0.015 mm
Surface chromium-plating's hardness after nitriding:	≥900HV
Chromium-plating depth:	0.025~0.10 mm
Alloy Hardness:	HRC50-65
Alloy depth:	0.8~2.0 mm

Materials & Processes

1.Quality 38CrMoAlA (JIS SACM645)

2.Quality Duplex Stainless Steels

3.42 CrMo (JIS SCM440)

4.40Cr

5.GH113

6.SKD11

7.SKD61 (H13)

8.Gr12MoV

9.Quality Powder Metallurgy Raw Materials

10.Cold/Thermal Spray Hard Metal Process

11.Advanced nitriding Process

12.Corrosion & Abrasion Resistance Bimetal Spraying Process

Our advantages:

The excellent complete equipments

Professional team of engineers

The experienced workers

Wearable and durable screw and barrel

Over 20 years experience on making screw and barrel

Located in the biggest screw town of China, which has convenient traffic.

General Process

confirm the design--arrange the order--Laying-off the material--drilling--

rough turning--rough grinding--hardening & tempering--finish turning outer

diameter--rough milling threand--alignment (removal of material deformation)--

finished milling thread--polishing--rough grinding outer diameter--milling the end

spline--nitriding treatment--fine grinding--polishing--packaging--shipping

products application

Complete Equipments

CNC Milling Machine

7.2 meters pit tempering furnace and7 meters pit nitriding furnace

Quality Inspect

1.Management System:ISO9001:2008

2.Advanced quality inspection center

3.Digital vickers hardness tester

4.Portable’s hardness machine

5.Metal ultrasonic flaw detector

packages

workshop

company introduce

Zhejiang Jinteng Mchinery Manufacture Co.,Ltd through more than 20 years development,has alreadybecome the biggest specialized in manufacturing the screws and cylinders of plastics machine manufacturer.

The screw and barrel made by our company is widely suitable for domestically produced,imported 30-80000gramcasting machine,Diameter 15-300mm single screw extrution machine ,Diameter 45/90-92/188mm conical twinscrew extruder,Diameter 45/2~150/2mm parallel twin screw extruder machineand each kind of Products throughthe quenched and tempered,qualitative,nitriding,fine grinding or spray welding alloy,polishing process technology.

In strict accordance with the ISO9001-2008 international quality system,to ensure the quality of product reach theinternational advanced level.

our other products,different kinds of screw and barrel

♦conical twin screw and barrel
♦parallel twin screw and barrel
♦single screw and barrel for Extruder
♦Injection machinery screw and barrel
♦rubber screw and barrel
♦bimetallic alloy screw and barrel

If you have any requirments in screw and barrel, feel free to contact us.