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PET Screw Barrel with Vent Hole Plastic Extrusion

  • PET Screw Barrel with Vent Hole Plastic Extrusion
  • PET Screw Barrel with Vent Hole Plastic Extrusion
  • PET Screw Barrel with Vent Hole Plastic Extrusion
  • PET Screw Barrel with Vent Hole Plastic Extrusion

PET Screw Barrel with Vent Hole Plastic Extrusion

    Unit Price: 100~100000 USD
    Min. Order: 1 Set/Sets
    Packaging: Wooden case or others
    Productivity: 300,000-500,000 sets per year
    Brand: Jinyi
    Transportation: Ocean,Land,Air,Express,By Trian
    Place of Origin: Zhejiang, China
    Supply Ability: 2500 sets per month
    Certificate: ISO 9001:2015
    HS Code: 8477900000
    Port: Ningbo,Shanghai,Hangzhou

Basic Info

Model No.: PET screw barrel

Product Description


PET Screw and Barrels for Injection and Extrusion

PET resin has poor thermal stability, and is easy to hydrolyze. It is often added pigments such as color oil and Color Masterbatch, thus is easy to produce excess formaldehyde gas that will acidize during the injection molding, which is typical in the bottle preform molding industry. With the popularity of lean production, the screw structure tends to low-shear high mixing.

After years of research and development and practical analysis, the single melt tank is divided into high- and low-pressure areas to form a wavy structure, in substitution of solid and liquid tanks, so that the melt will shunt itself in this area without hindering the travel time, thus achieving the best energy-efficiency ratio.


Granulation Screw Ningbo Jinyi Precision




Scope of application

Bottle preform

Auto parts

Electronic appliances

Blow molding


PET 03

PET 01

PET 06





Ningbo Jinyi Precision Machinery Co., Ltd.

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With over 25 years development, Ningbo Jinyi Precision Machinery Co.,Ltd is now one of the largest companies specialized in manufacturing Screws, Barrels and related accessories. With our 5 factories based in Ningbo & Zhoushan, including our second factory Ningbo Lichao Tiebar Precision Machinery Co., Ltd. who is specialized in manufacturing Tie bars, Pistons rods, Nuts, we commit to designing and supplying precision parts for the plastics, rubber, food and medical industries, ect.


Focusing on Precise Machining, Ningbo Jinyi has an extremely large database of prints, drawings, and factory OEM specifications. While paying attention to skilled personnel training, we also imported series of advanced equipment, such as CNC Machining Center, CNC Turning Machine, Inner Hole Grinding Machine, 13 Meters Deep Hole Boring Machine, NC drilling machine, Nitriding Furnace Computer Control System, Centrifugal Casting Furnace, PTA Bimetallic Spraying Equipment, gear milling machine and so on .


At the same time, Ningbo Jinyi continues to improve Quality Control System through precise inspection during every step of the production. With our excellent quality, we have already established long term cooperation with many well-known companies both in China and overseas. We are one of the first companies to implement the ISO9001 & SGS Certification in our industry.


Development History

1993 The company "Lichao" was established with the rise of screw industry in Chin.

1995 Took the lead in introducing CNC machining in the industry.

1997 We firstly started to manufacture alloy bushing barrel, which greatly improved the service life of barrel.

2000 The annual output exceeded RMB 50 million yuan for the first time.

2002 In order to better serve customers, the main plant was relocated to Ningbo.

2003 Jinyi recruited technical talents from Taiwan Province to guide and study alloy casting process.

2005 The centrifugal casting equipment was introduced from Taiwan and put into use.

2007 PTA plasma automatic bimetallic alloy spraying equipment was installed and put into use.

2010 Zhoushan new plant was built.

2011 A new electroplating plant was built in Zhenhai Chemical Industrial Park. So far, all the production processes of Jinyi can be under internal control.

2012 The second factory in Ningbo was built.

2016 The third factory in Ningbo was built, forming a pattern of 2 bases and 5 factory areas in Ningbo and Zhoushan.

2017 "Ningbo Lichao Tie Bar Precision Machinery Co., Ltd." was established, mainly engaged in tiebars manufacturing.


Company Info

  • Company Name: Ningbo Jinyi Precision Machinery Co., Ltd.
  • Representative: ZHANG LIBO
  • Product/Service: Injection Screws , Injection Barrels , Extrusion Screws , Extrusion Barrels , Tie Bars , Twin Screw Barrels
  • Capital (Million US $): 30 millions
  • Year Established: 2003
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 21% - 30%
  • Total Annual Purchase Volume (Million US $): US$10 Million - US$50 Million
  • No. of Production Lines: 12
  • No. of R&D Staff: 11 -20 People
  • No. of QC Staff: 21 -30 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Above 100,000 square meters
  • Factory Location: 158 Qiancheng Rd, Zhenhai District
  • Contact Person: Mr. Kenny Ye
  • Tel: +86-574-55002386
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