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

Can the energy consumption in the production process be reduced by using WPC parallel twin-screw barrel? Feb 23

Can the energy consumption in the production process be reduced by using WPC parallel twin-screw barrel?

In today's production environment that pays attention to energy conservation and environmental protection, reducing energy consumption is an important issue faced by every manufacturing enterprise. With its advanced design and technology, W...

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How does the WPC parallel twin-screw barrel cope with plastic processing in high temperature and high pressure environments? Feb 16

How does the WPC parallel twin-screw barrel cope with plastic processing in high temperature and high pressure environments?

During plastic processing, especially when producing WPC (wood-plastic composites), it is often necessary to deal with high-temperature and high-pressure environments. In this environment, choosing the right production equipment is crucial....

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What is the self-locking performance of the left and right conical rubber twin screws? Feb 10

What is the self-locking performance of the left and right conical rubber twin screws?

The self-locking performance of the left and right conical rubber twin screws means that in the event of a power outage or shutdown, the screw system can effectively prevent its own uncontrolled movement and maintain the current positional ...

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Why do the left and right conical rubber twin screws have greater load carrying capacity? Feb 03

Why do the left and right conical rubber twin screws have greater load carrying capacity?

The large load carrying capacity of the left and right conical rubber twin screws is mainly due to their unique design structure and material selection. The following are the key factors that explain the larger load carrying capacity of the...

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How to shorten the mixing time of the screw barrel of high speed Rubber Machine Screw Barrel? Jan 26

How to shorten the mixing time of the screw barrel of high speed Rubber Machine Screw Barrel?

The mixing time of the high speed Rubber Machine Screw Barrel during the rubber mixing process is directly related to production efficiency and cost. Therefore, taking measures to shorten the mixing time is crucial to improving the overall ...

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What is the importance of barrel flange connectors in industrial applications? Jan 19

What is the importance of barrel flange connectors in industrial applications?

Barrel flange connectors are important in industrial applications, mainly in the following aspects: Security and stability: The design of barrel flange connectors focuses on structural strength and material durability, and can withstand ext...

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What are the functions of the pitch, groove depth and other parameters of the rubber machine screw barrel? Jan 12

What are the functions of the pitch, groove depth and other parameters of the rubber machine screw barrel?

The rubber machine screw barrel is a key piece of equipment in the rubber processing process, and its parameters such as pitch and groove depth directly affect the mixing and processing effects of rubber. This article will delve into the ro...

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Why is the conical barrel screw designed to be conical ? Jan 05

Why is the conical barrel screw designed to be conical ?

The conical barrel screw plays a vital role in modern industrial production, and its conical design is one of its unique features. To gain insight into why a conical design was chosen, this article will explore the reasons for the conical d...

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What effect does surface coating have on conical barrel screws? Dec 29

What effect does surface coating have on conical barrel screws?

In modern industrial production, conical barrel screws, as key processing components, play an important role in plastic processing, injection molding and other fields. Among them, surface coating, as a key technology to improve the performa...

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