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

The extruder barrel screw is a common part of 3D printers Aug 05

The extruder barrel screw is a common part of 3D printers

The extruder barrel screw is a common part of 3D printers. However, its design is not simple. Various factors affect the life of the screw, including the lubrication film and the Bimetallic screw. Extruders The extruder barrel screw is a cr...

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What factors need to be considered when choosing an injection molding barrel screw? Jul 22

What factors need to be considered when choosing an injection molding barrel screw?

When choosing an injection molding barrel screw, there are several considerations to consider. First, the feedthroat temperature must be adequate. Too cold and volatiles will condense inside the barrel. Too hot, and a melt film will form be...

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How many factors need to be considered when designing twin screw extruders and barrels? Jul 15

How many factors need to be considered when designing twin screw extruders and barrels?

Shear regions in a twin screw extruder The corotating twin screws of a twin screw extruder produce a self-wiping effect, which sequentially discharges a small volume of material. This effect leads to a uniform deformation history for the sc...

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What Are the Features of a Conical Twin Barrel? Jul 08

What Are the Features of a Conical Twin Barrel?

The features of a Conical Twin Barrel include: Detachable, Bimetallic, High temperature resistance, and Excellent plasticizing and mixing abilities. If you have been searching for a Conical Twin Barrel, here are some tips that will help you...

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What You Need to Know About a Twin Screw Barrel? Jul 01

What You Need to Know About a Twin Screw Barrel?

Characteristics Twin screw barrels are characterized by their double screw design. They can work in a variety of applications and are designed for high output with low wear. They can be used for higher filled formulations and regrind materi...

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How to choose an injection molding barrel screw? Jun 23

How to choose an injection molding barrel screw?

Here are some of the most important tips for choosing the best barrel screw. First, determine the type of material to be molded. Injection molding screws come in two main types: plastic and metal. The former is designed to convey the materi...

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What to Look For in a Blown Film Extruder Machine? Jun 16

What to Look For in a Blown Film Extruder Machine?

Bubble breathing occurs when the volume of air in the bubble changes periodically. This causes variations in the film's thickness. A solution for this problem is to increase the speed of the melt as it exits the die. Another problem is call...

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What are the advantages of blown film extruder? Jun 09

What are the advantages of blown film extruder?

A Blown Film Extruder Machine is a highly effective plastics processing machine, which consists of a series of heated and extruded cylinders. The film formed by this machine is transparent, opaque or hazy depending on the desired properties...

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How many types of parallel twin screw barrels are there? Jun 01

How many types of parallel twin screw barrels are there?

The Parallel Twin Screw Barrel has good performance, such as reasonable screw structure, high plasticizing effect, and stable extrusion. Its spiral surface is coated with double-alloy spray welding, which ensures high wear resistance. This ...

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