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 classification of screw extruders and common problems? Jul 30

What are the classification of screw extruders and common problems?

The screw extruder mainly processes plastic products to produce products that meet the requirements. There are many types of this equipment, divided into different types according to different categories. When using the equipment, choose th...

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What is the structure classification and cleaning method of twin screw extruder? Jul 23

What is the structure classification and cleaning method of twin screw extruder?

The twin-screw extruder is mainly used in plastic factories. It is a widely used equipment that can effectively process plastic products. There are many types of this equipment, and it needs to be cleaned properly after use, so as to ensure...

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What are the characteristics of twin screw extruders? Jul 16

What are the characteristics of twin screw extruders?

In the application field of extruder, twin-screw extruder is definitely a topic that cannot be avoided, because the application of this kind of machine has been very extensive, basically as long as it involves workshops and companies in the...

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What is a Screw Barrel of Injection Moulding Machine? Jul 09

What is a Screw Barrel of Injection Moulding Machine?

Injection moulding is a manufacturing process that involves the filling of cavities with liquid or semi-solid material, usually plastics, and then implanting the moulds into a workable object. The cavities are usually made from either soft ...

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What applications are the conical twin-screw barrels suitable for? Jul 02

What applications are the conical twin-screw barrels suitable for?

Conical Twin Screw Barrels, sometimes also referred to as gun barrels, is a common component of many types of ammunition. The term "conical" is derived from the fact that the inner surface, or conical area, of a barrel is cylindrical in cro...

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A Guide to Barrel Injection Mold Containers Jun 25

A Guide to Barrel Injection Mold Containers

The Barrel Injection Mold, or BIM, is one of two common processes for creating molds with plastic. The other process is the Dry Molding, which is commonly used for producing a wide range of household items. The main advantage of the BIM pro...

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What is the Meltblown Extruder Screw Barrels? Jun 18

What is the Meltblown Extruder Screw Barrels?

Injection molding method uses solid materials and aluminum alloy, while direct injection method uses plastic or polystyrene materials. These two types of process produces barrels and screws that will be used in industries that are concerned...

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How to Choose the Right Barrel Screws For Your Foaming Project? Jun 11

How to Choose the Right Barrel Screws For Your Foaming Project?

Foaming barrel screws are made from a material called Diesteron, which is an oily compound that will harden when it is vulcanized. The screw will be surrounded by a hexagonal ring to make it even more durable. You can mount them right on to...

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Advantages of a Parallel Twin Screw Extruder Jun 04

Advantages of a Parallel Twin Screw Extruder

Parallel twin screw extruders are fastened together at their central shaft with a number of cross threads on both sides. They are generally used for fastening plastic fabrication work to a hard surface such as metal or wooden block. They ar...

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