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Stainless Screw Barrel for Food Processing Extrusion

  • Stainless Screw Barrel for Food Processing Extrusion
  • Stainless Screw Barrel for Food Processing Extrusion
  • Stainless Screw Barrel for Food Processing Extrusion
  • Stainless Screw Barrel for Food Processing Extrusion

Stainless Screw Barrel for Food Processing 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.: Food processing

Product Description

Screw Barrel for Food Processing and Extrusion

Single and twin screw extrusion is used to process a variety of foods for human and pet consumption. Common extruded foods include sausages, processed meats, dough, pasta, cereals, snack foods, candy and animal feeds. Ningbo Jinyi manufactures monolithic Stainless steel screw barrel sets for ultra pure applications.

Food process extruders for the most part are single or twin screw design. There are various different equipment types and many custom designed machines. Each machine is configured for the specific application. General types include single screw cooking, continuous pasta, dough, pelletizing extruders and co and counter rotating twin screw extruders. It is imperative to use acceptable alloys for the construction of the component surfaces that come into contact with the food materials being processed. The barrel ID surface must be compatible with the feed screw and the material being worked. Of equal importance is resistance to abrasion and corrosion wear. Pitting of the ID surface can cause a stagnation of the material being processed leading to degradation and contamination. Significant abrasion wear can result in foreign elements being present in the end product.

Our food processing screws barrels are in various size with high durability and corrosion resistance.

We use the supreme quality raw material to manufacture food processing screw barrel. The accurate dimensions given by our highly skilled professionals, the superior finish make all our clients happy and satisfied with our delivered products.

Highly durable * Optimum performance * Low maintenance

Food processing 04 - Ningbo Jinyi Precision
Food processing 05 - Ningbo Jinyi Precision
Food processing 02 - Ningbo Jinyi Precision
Food processing 01 - Ningbo Jinyi Precision
Food processing 03 - Ningbo Jinyi Precision

Aquatic feeds

Floating, sinking, slow-sinking and specialty products.


Breakfast cereals, pastas, snacks, breads, textured vegetable proteins.

Pet foods and treats

Dry, semi-moist, high meat, co-extruded, multi-colored, novelty shapes.


Material: Stainless steel EN1.4404 or SUS316

Available size: D30 - 500mm

Tests: Linearity, Ra-value, thread check, measurements and hardness check

Production process: Raw material check -> Rough turn of both ends -> Full piece drill D30 - > 1.5mm rough turn and leave 1.5mm -> D80 enlarge hole from D65 -> 3mm rough turn shank leaving 3mm -> Clean inside scrap -> Welding the tip -> Fine turning -> 1.5mm rough milling root leaving 1.5mm -> 1st grinding -> 0.3mm half fine milling leave 0.3mm -> 2nd grinding -> 0.1mm fine milling, fly milling root leave 0.1mm -> rough fine polish -> 0.1mm 1st rectify 0.1mm -> vibration 80min -> 0.1mm 2nd rectify 0.1mm -> 3rd grinding -> Drilling shank inside thread -> Key milling -> 0.1mm 3rd rectify 0.1mm -> Fine grinding to required tolerance -> Remove support part -> Drill hole -> Inspection


Material: Stainless steel EN1.4542 or 17-4PH

Tests: Measurements and hardness check, linearity, runabout, Ra-value, thread check, pickling paste and salt test

Production process: Raw material check -> Drill D70 -> Stable treatment -> Enlarge to D90 -> CNC rough turn, leave 2.5mm ->Vibration -> Turn boring end -> 1st honing to +0.02/0.05 -> Mandrill testing -> Fine turn to tolerance 0.1mm -> Mandrill testing-> 2nd honing to +0.07/0.10 -> Mill feeding port -> Drill -> Polish -> Inspection

Food processing screw barrel 01 - Ningbo Jinyi Precision

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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