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Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel
  • Conical Twin Screw Barrel

Conical Twin Screw Barrel

Payment Type: L/C,T/T,Money Gram,Western Union
Terms of Trade: FOB,CFR,CIF,EXW,FCA
Delivery Time: 30 Days

Basic Info

Model No.: Dia, range: φ35/75 – 110/220 mm, etc

Product Description

Screw barrel for conical twin screw extruder

Dia, range: φ35/75 – 110/220 mm

Installation: Coupling and flange

Different type of steel material for fitting the hardness and production demands with DIN 1.8550

Heating treatments with Nitriding, spraying coating bimetallic alloy

Any harndess, any abrasive, any long life guaranteed

We can copy the original design from the customer's used screw barrel and also design new profile for the special requirements.

Resina prima PP,PE,PVC,PLA,etc.

n Material

Ø 38CrMoAlA (JIS SACM645)

Ø 9Cr18MoV

Ø 34CrAlNi7 (DIN 1.8550)

Ø Special materials (Customer requirement)

n Screw Surface Treatment

Ø Nitrided

Ø Hard-chrome electroplated

Ø Spray coating bimetallic alloy

n Barrel Surface Treatment

Ø Nitrided

Ø Inlay the bimetallic bushing or SKD 61 bushing into barrel inner

n Scope of Model

Ø φ35/75

Ø φ40/84

Ø φ45/90

Ø φ45/97

Ø φ45/100

Ø φ50/105

Ø φ51/105

Ø φ55/110

Ø φ55/120

Ø φ58/125

Ø φ61/125

Ø φ65/120

Ø φ65/132

Ø φ68/147

Ø φ70/140

Ø φ80/143

Ø φ80/156

Ø φ80/174

Ø φ92/188

Ø φ95/191

Ø φ105/216

Ø φ110/220


n Hardening and Tempering

Ø Hardness

HB280 – 320 ( China Taiwanese technology)

Ø Thickness


n Nitrided

Ø Hardness

HV850 - 1000 ( China Taiwanese technology)

Ø Thickness

0.45 – 0.7 mm

Ø Brittleness

Less than Grade 1

n Bimetallic Treatment

Ø Hardness

HRC56 - 65

Ø Thickness

0.8 – 3 mm

n Barrel Bimetallic Treatment

Ø Hardness

HRC56 - 62

Ø Bushing material

Special alloy or SKD61

Ø Bushing thickness (Single edge)

3 – 10 mm

n Hard-chrome electroplated

Ø Hardness

More than HV900

Ø Thickness

0.025 – 0.10 mm

n Basic parameters

Ø Surface roughness

Ra 0.4

Ø Screw straightness

0.015 mm

n Scope of application

Ø Pipes

Ø Profiles

Ø Cables

Ø Board/Sheet

Ø Granulation

Conical twin screw barrel


n Packing Standrad

Ø Apply rust preventing oil evenly on the surface.

Ø Wrap the film around the outer surface.

Ø Place in export standard wooden cases.


  NINGBO RECTO MACHINERY CO., LTD started from the manufacturer of screw barrel for plastic machine. After several years of development, we began to produce extrusion line. We had provided products to more than 30 countries or regions around the world with good quality and advanced solutions. We not only produce plastic machinery, but also trade in plastic raw materials. So far, we have owned three manufacturing plants and a wholly owned subsidiary. All import and export business is handled by our subsidiary RICO (NINGBO) IMP & EXP CO., LTD.

Ever since the establishment of the company, we feel honored to gain support from numerous customers around the world, to which they help us in building a good reputation in the industry. It is a source of motivation to make improvement in every aspects of our business. Most of our customers are machine manufacturers and plastic producers who come from all over the world. We formed an experienced design team to provide professional advice which helps in customized solutions and problem-solving.

[Mutual trust, develop together". The needs of market is changing in fast pace, so we always put effort in identifying the needs of customers, and to satisfy the needs by offering quality products and services with regular assessment. Your support makes our success possible.

Company Info
  • Representative: GU BEIJI
  • Product/Service: Screw Barrel , Screw Extruder , Pipe Extrusion Line , Profile Extrusion Line , Board Extrusion Line , Pelletizing Extrusion Line
  • Capital (Million US $): 1000000RMB
  • Year Established: 2018
  • Total Annual Sales Volume (Million US $): US$5 Million - US$10 Million
  • Export Percentage: 31% - 40%
  • Total Annual Purchase Volume (Million US $): US$2.5 Million - US$5 Million
  • No. of Production Lines: Above 20
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 3,000-5,000 square meters
  • Factory Location: Xihou Industrial Park, Jintang Town, Dinghai District, Zhoushan City, Zhejiang Province
  • Contact Person: Mr. Alex Hwang
  • Tel: 0086-0574-83099583
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