animal feed machinery
turn key production line
feed machinery spare parts

About Shanghai Zhengyi Machinery

Founded in Shanghai Songjiang Industrial Park in 1997. Professional research and development and manufacture of pellet machine ring die, roller and pellet machine related accessories. Industry advanced processing equipment, industry leading equipment scale. First – class ring die design technology and advanced processing technology.

  • Oversea Office

  • Aftersales Service Team

  • Founded in 1997

  • Pellet Mill

    Ring Die Animal Feed Pellet Mill adopts mature technology to make high-quality animal feed pellets for chicken, cattle, horse, duck, etc. with large–scale production. Based on the outstanding features of its high throughput, low consumption, and mature technology, the ring die feed pellet mill has become more and more popular and possesses a broad market share at home and abroad. It is ideal equipment for animal and poultry breeding in grain feed factories, livestock farms, poultry farms, individual farmers, feed processing industry, etc.

  • Turnkey Production Line by Zhengyi

    The company always adheres to the quality policy of “four zeros”, namely “zero defects in materials, design for turnkey production line, processing and inspection”. Customer oriented, dedicated to provide customers with high-quality products and turnkey production line services. Zhengyi will always adhere to the value of “technology is the core, quality is the life”, constantly innovate in product research and development, create value for customers, and contribute to the development of feed and food industry in China and even the world.

  • Ring Die Repair machine

    Innovatively integrate grinding inner circle, clearing hole and intern
    all counterbore in the process of ring die repair into a repair equipment.

    The cost of equipment is reduced by 40%, the occupied space of equipment
    is reduced by 60%, and the repair efficiency is improved by 30%.
    Great time-saving.

    PLC control, intelligent calculation setting repair data,
    repair l (Q process without personnel supervision).



+86 021 - 57780012 (office)

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Ring Die Manufacturing

  • Ring Die of Spare Parts for Pellet Mill

    Ring Die of Spare Parts for Pellet Mill

    Zhengyi Ring Die of Spare Parts of Pellet mill
    Using Euro Standard X46Cr13 and strictly production process control, the products with high precision have reached the first-class level of the industry in terms of assembly size and hole wall smoothness.

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  • Turnkey Production Line

    Turnkey Production Line

    Zhengyi feed machinery industry gathers rich experience in equipment application and manufacturing and has provides equipment and turnkey projects to lots of international feed manufacturers.

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  • Effects of Feed Particle Size on Nutrient Digestibility, Feeding Behavior and Growth Performance of Pigs.

    Effects of Feed Particle Size on Nutrient Diges...

    1, Feed Particle Size Determination Method Feed particle size refers to the thickness of feed raw materials, feed additives, and feed products. At present, the relevant n...

  • Why shall we have a stable manufacturer as the partner?

    Why shall we have a stable manufacturer as the ...

    According to the International Food Industry Federation (IFIF), the annual global production of compound food is estimated at more than one billion tons and the annual glo...

  • Type and standard of Crushing roller shell surface

    Type and standard of Crushing roller shell surface

    Crushing roller shell is one of the main working parts of the pellet mill, and is widely used in the processing of various biofuel pellets, animal feed and other pellets. During the working process...

  • Shanghai Zhengyi Attend Livestock Philippines 2022 Feed Industry Exhibition

    Shanghai Zhengyi Attend Livestock Philippines 2...

    From August 24 to August 26, 2022, Livestock Philippines 2022 was held at the World Trade Center in Metro Manila, Philippines. Shanghai Zhengyi Machinery Engineering Technology Manufacturing Co., ...

  • Analysis of abnormal causes of large vibration ...

    (1) There may be a problem with the bearing in a certain part of the granulator, causing the machine to run abnormally, the working current will fluctuate, and the working current will be high (sto...

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