About Changjia

Zhoushan Changjia Plastic machinery Co., LTD is a

China gearbox for screw extruder manufacturers and gearbox for screw extruder 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

What are the types of WPC parallel twin screw barrel? Nov 25

What are the types of WPC parallel twin screw barrel?

Whether you are a manufacturer or a consumer looking to upgrade your extrusion process, the WPC Parallel Twin Screw Barrel has a lot to offer. The machine can handle various polymers for a wide variety of applications. It is a good option f...

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Using Melt Blown Extruder Screw to Produce Non-Woven Fabrics Nov 18

Using Melt Blown Extruder Screw to Produce Non-Woven Fabrics

Using melt blown extruder screw has been used to produce a range of non-woven fabrics. These fabrics are used in various applications such as filtration products, medical masks, and insulations. They are strong and breathable. They are also...

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Twin-screw extruders feature positive displacement capability Nov 11

Twin-screw extruders feature positive displacement capability

Extruders are built with a variety of different components, and the design of the screw plays a crucial role in determining the output quality. The screw design plays a crucial role in determining the plasticization characteristics of the m...

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The Screw Barrel and Its Importance for Granulation Nov 03

The Screw Barrel and Its Importance for Granulation

The temperature distribution inside the barrel is important for the proper granulation of powder mixtures. Typically, the temperatures of the inlet and outlet of the screw barrel are approximately the same. However, the temperatures near th...

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A conical twin screw barrel is widely used in the processing of PVC products Oct 28

A conical twin screw barrel is widely used in the processing of PVC products

A Conical twin screw barrel is used for extruding plastic materials. The screw clearance is an important parameter that must be considered when purchasing a barrel. If it is too small or too large, the product shear rate will be low and the...

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How to design a granulation screw barrel? Oct 20

How to design a granulation screw barrel?

A granulation screw is a machine for the production of powdered pharmaceuticals. This machine has two feeders: one for the API and one for the filler. It feeds the API and filler in different ratios to achieve proper agglomeration. The desi...

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A three-dimensional printer screw is an alternative to threaded inserts Oct 14

A three-dimensional printer screw is an alternative to threaded inserts

A three-dimensional printer screw is an alternative to threaded inserts. These screws deliver high accuracy, repeatability, and performance. These self-tapping plastic screws have no threads and are suitable for use with 3D-printed parts. A...

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Injection molding screw parts can be made with side-action cores Oct 09

Injection molding screw parts can be made with side-action cores

Injection molding screw parts are necessary for plastic injection molding. They provide the proper mixing of molten plastic before tip assembly. During this process, plastic is introduced to the screw and barrel, and then slides on the insi...

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High Alloy Corrosion and Wear Resistant Metallurgy for Twin Screw Extruders Sep 30

High Alloy Corrosion and Wear Resistant Metallurgy for Twin Screw Extruders

If you're in the medical device industry, you've likely heard of the twin screw extruder. Unlike the single-screw extruders, twin-screw extruders can be configured for specific processes and a wide variety of materials. These extruders have...

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