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.

Learn more from our FAQ

               

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 is the principle of a twin screw extruder? Nov 23

What is the principle of a twin screw extruder?

1. Co-rotating twin-screw extruder This type of extruder has low speed and high speed. The former is mainly used for profile extrusion, while the latter is used for special polymer processing operations. (1) Closely meshing extruder. The lo...

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What are the advantages of twin screw extruders? Nov 15

What are the advantages of twin screw extruders?

1. Intuitively understand the wear situation of wearing parts. It can create the wear level of the threaded components and the inner liner of the barrel at any time, and then carry out effective maintenance or replacement. It will not be di...

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What kind of steel is used for the screw of the twin-screw extruder? Nov 08

What kind of steel is used for the screw of the twin-screw extruder?

The twin-screw extruder is composed of many parts, among which the screw is a more critical part, and its quality directly affects the extrusion effect. So what kind of steel is used for the screw of the twin-screw extruder? What are the co...

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What is the situation of unstable discharge of twin-screw extruder? Nov 01

What is the situation of unstable discharge of twin-screw extruder?

The twin-screw extruder refers to a dispersion in which solid powder and liquid coexist and mainly solid phase, using the self-adhesiveness of the dispersion to force the basic particles of the solid powder to bond and increase each other. ...

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What are the common failures of the screw of the twin-screw extruder? Oct 25

What are the common failures of the screw of the twin-screw extruder?

When using a twin-screw extruder, we must pay attention to the use status of its accessories. The screw is a very important accessory. If it fails, we must learn to solve these problems. Common failures of the screw of twin-screw extruder: ...

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How to deal with the waste gas produced by the twin-screw granulator? Oct 22

How to deal with the waste gas produced by the twin-screw granulator?

During the operation of the twin-screw granulator, some waste gas may be generated. If the waste gas is not treated, it will have a great impact on the environment and the health of the operators. Then how should these waste gas be treated?...

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What are the application advantages of twin screw extruders? Oct 15

What are the application advantages of twin screw extruders?

There are many types of extruders nowadays, and ordinary extruders are also used by many users, but the twin-screw extruder is currently widely used. What are its application advantages? Mainly the advantages of wearing parts, reducing prod...

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What are the granulation skills of using twin screw granulator? Oct 09

What are the granulation skills of using twin screw granulator?

When using a twin-screw granulator, if you want the entire finished product to show a very good state, you need to learn to use some granulation skills. These skills are learning to listen to the sound, learn to look at the material, and lo...

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What are the functions of the filling modified granulator? Sep 30

What are the functions of the filling modified granulator?

The filling modified granulator adopts new technology and has many advantages compared with the traditional granulator. It has high carrying capacity, can realize the functions of self-cleaning, interchangeability and energy saving, and has...

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