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...

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...

Where are your main exports?

Our products are mainly exported to Southeast Asia, Europe, South America and other countries.

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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

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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Twin-screw extruders have high speeds and torque Sep 22

Twin-screw extruders have high speeds and torque

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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What is the effect of the injection barrel screw with temperature? Sep 15

What is the effect of the injection barrel screw with temperature?

An injection moulding barrel screw is used to transfer material between barrel and mold during the general injection molding cycle. This cycle includes filling the barrel with material, plasticizing the material, and then holding the cushio...

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How many types of screw extruders are there? Sep 08

How many types of screw extruders are there?

Screw barrels play an integral role in the plastic extrusion process. Proper assembly and maintenance are crucial for their longevity. Several factors must be taken into account when selecting the correct screw barrel for the job. These fac...

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What are the different types of parallel twin screw barrel systems? Sep 02

What are the different types of parallel twin screw barrel systems?

A parallel twin screw and barrel system is ideal for manufacturing PVC profiles and pipes. This system is also great for extrusion foaming products. Its hardness ranges from 65-68 HRC and is made from EN41B steel. In addition, these barrels...

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How to choose a gearbox for a screw extruder? Aug 26

How to choose a gearbox for a screw extruder?

When choosing a Gearbox for a Screw Extruder, you need to take the material's weight into account as well as its type, feed rate and geometry. In order to accommodate this load, there are two types of bearings: radial and thrust. Thrust bea...

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What are the applications of Meltblown Extruder Screw Barrel? Aug 19

What are the applications of Meltblown Extruder Screw Barrel?

Cold feed screw extruder The cold feed screw extruder from Meltblown is an excellent choice for the manufacture of plastics. The screw design enables it to process a wide range of materials. The barrel structure and screw shape can be custo...

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What is a screw extruder gearbox? Aug 12

What is a screw extruder gearbox?

What is a screw extruder gearbox, how does it work, and what are the common types of failures. Gearboxes are an integral part of a Screw Extruder. These devices are used to drive the screw to impart torque in order to overcome the friction ...

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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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