Extruder screws

PRODUCTS

CONICAL TWIN EXTRUDER SCREW

Screw structure and compression ratio can be designed according to different pro
Description Warranty Info
Description

Screw structure and compression ratio can be designed according to different products & different output requirement.

 

Product Description: Conical Twin Extruder Screws

aterials: 38CrMoAlA+ Ni +WC Alloy

Hardness: HRC56-62

ApplicationPVC , PE , WPC plate , pipe industry.

Charactors:  High Hardness and High Wear-Resistance

Product Introduction

Conical twin-screw extruder is composed of barrel, screw ,gear transimission system,measurable feeding,vacuum system,heating,cooling and electronic control components.

It is mainly used in plasticizing,extruding and forming PVC pipe ,plate,sheet,film,profile,and granule,etc

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Main  Advantages

1-- Low shearing rate, uneasy degradation,plasticization uniform and agglomeration.

2--  Reliable quality ,wide application range and long servicing life.

3--  Automatic temperature control, vacuum gas exhaustion, oil cooled screws.

4--- forced feeding and self-cleaning mechanism.

For Bimetallic Process we also have our own advantages:

We use special alloy powders being sprayed and welded on the screw's ridge,
and we use different alloy and welding methods for the screw of different functions.

Main Specification 

specification

Working length(mm)

Extrusion ability   (kg/h)

 Rotation speed of screw(rpm)

φ35/φ77

810

40-70

5~50

φ45/φ90

990

50-80

5~45

φ50/φ105

1070

100-150

4~45

φ51/φ105

1220

100-150

4~45

φ55/φ110

1220

120-180

4~40

φ60/φ125

1320

150-200

4~40

φ65/φ120

1440

200-250

4~40

φ65/φ132

1440

200-250

4~40

φ70/中140

1460

220-300

4~40

φ75/φ150

1480

250-300

4~35

φ80/φ143

1800

300-360

4~35

φ80/φ156

1660

300-360

4~35

φ92/φ188

2000

400-500

4~35





Bimetallic Conical Screw Parameter

Basic  Steel:  38CrMoAIA

Heat treatment hardness: HB260°~320°

Nitriding hardness:HV950°~1000°

Nitriding depth: 0.50~ 0.7mm

Nitriding brittleness:≤grade 2

Roughness:Ra0.4

Screw  straightness:0.015mm

Chrome plating hardness:≥950HV

Chrome  thickness:  0.050.10mm

Bimetal depth: 1.02.0mm

Bimetal  hardness:HRC56°~65°

Bimetallic Special Materials

hot processed steel: 1.2344H13W360SKD61

cold  processed  steel:  1.2379K340D2DC53SKD11W110

 HSS:1.33431.3243  SKH51SKH55

HIP Powder HSS:CPM9VSK739SK726SK742GH113

Screw flight top use Stellite plasma alloy welding, alloy types: cobalt base,nickel base, iron base alloy.

Screw  alloy layer: 

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Production Show

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Quality Control

We always adhere to the principle of quality first and service first, and strictly control the quality of every product that leaves the factory to ensure the interests of customers to the greatest extent possibly.

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Warranty Info

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