About Changjia

Zhoushan Changjia Plastic machinery Co., LTD is a

China shoe machine barrel screws manufacturers and extruder replacement parts factory

, company located in the middle of Jintang Island of the city of Zhoushan. Zhoushan is known for its multiple isles and the production of screw rods. To the east, it looks at Putuo Mountain, a Buddhist pilgrim resort across the sea; to the west, it is adjacent with Beilun Port of Ningbo, an international deep-water port.

Company combines scientific research development, production and business operation and business property as a whole. It is a professional producer of various types screw rods for cylinders of extruders and injection molding machines. It is also able to customize specific Extruder replacement parts according to the users' requirements and serve its users with designing of sample preparation.

This Company's products are based upon high quality steel 38CrMoALA, which is conditioned, surface nitridized (or coated with hard alloy) and polished, showing very high precision, wear resistance and long service life, therefore, used by many famous brand molding machines at home and abroad.

2000+

output

1200+

factories

27+

employees

Product List

       

You will find yourself working in a true partnership that results in an incredible experience,
and an end product that is the good.

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You will find yourself working in a true partnership that results in an incredible experience,and an end Shoe machine barrel screws that is the good.

What is the payment method?

When quoting, we will confirm with you the trading method, FOB, T/T or other ways. In mass production, we usually pay 40% advance payment, and then see the balance before shipment. Payment terms are mostly FOB. Of course...

Where are your main exports?

Our products are mainly exported to Southeast Asia, Europe, South America and other countries.

How can the goods be delivered to customers?

Usually we ship goods by sea, because we are in Ningbo, and it is very convenient for us to export by sea. Of course, if the customer's cargo is more urgent, we can also air transport, Ningbo Airport and Shanghai Interna...

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Marketing Network

Intemational Exhibition: Changjia screw sales all over the world, Japan, South Korea, the United States, Canada, France, Germany, Mexico, England, Austria, ltaly, Poland, Finland, Lebanon, Iran, Pakistan, Russia, Brazil, Argentina, Israel, Thailand, Vietnam, Malaysia Wait.

News & Event

Rotary Screw Compressor Selection Nov 15

Rotary Screw Compressor Selection

The rotary screw belongs to the positive displacement compressor family. Positive displacement pumps create flow by applying an expanding cavity on the suction side and a decreasing cavity on the discharge side. Gas that is trapped inside t...

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How to maintain screw extruder Nov 09

How to maintain screw extruder

Screw extruder maintenance process is generally divided into daily and periodic maintenance:     Routine maintenance: regular routine work, not the work equipment operation, normally carried out during driving. Focus on cleaning machine, lu...

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Single screw extruder Principle and Application Nov 01

Single screw extruder Principle and Application

Single-screw extruder as a common extruder device for plastics processing industry, what is the principle and construction is it? Below the conveying section of the extruder, compression section, metering section of the extruder to make an ...

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Screw extruder maintenance process is generally divided into daily and periodic maintenance Oct 26

Screw extruder maintenance process is generally divided into daily and periodic maintenance

    Routine maintenance: regular routine work, not the work equipment operation, normally carried out during driving. Focus on cleaning machine, lubricate moving parts, loosening of the fastening screw, timely inspection, adjustment motor, ...

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Classification and selection of extruder screws Oct 19

Classification and selection of extruder screws

The extruder extrusion system includes a screw, a barrel, a hopper, a machine head, and a mold. The plastic is plasticized into a uniform melt by an extrusion system, and continuously extruded by the screw under the pressure established in ...

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Introduction machine nozzle Oct 12

Introduction machine nozzle

  The nozzle is the transition between the coupling barrel and the mold. At the time of injection, the melt in the cylinder is injected into the mold by high pressure and rapid flow through the nozzle under the push of the screw. Therefore,...

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Introduction of screw barrel and plasticizing related parts Sep 29

Introduction of screw barrel and plasticizing related parts

The components related to plasticization in the injection part mainly include: screw, barrel, split shuttle, check ring, nozzle, flange, hopper, and the like. The following explains their roles and effects in the plasticization process.    ...

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Extruder common sense and process(2) Sep 21

Extruder common sense and process(2)

The two-head thread can be extruded mainly, and the heating is uniform and short, self-cleaning performance. Good (common) • d, three-thread thread, flexible choice of material pressure and temperature distribution at the machine angle, sta...

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Extruder common sense and process(1) Sep 21

Extruder common sense and process(1)

I. Extruder classification Product code Specification parameter description: For example, SHJM-Z40×25×800, the screw diameter is 40mm, the aspect ratio is 25, and the length of the traction roller is 800mm. The twin-screw hybrid plastic ext...

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