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 production characteristics of the PE pipe production line Feb 27

What are the production characteristics of the PE pipe production line

The rapid development of the plastics processing industry is the main driving force for the rapid development of my country's plastics machinery, which brings two favorable premises to the development of my country's plastics machinery indu...

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Common materials and material requirements of barrel and screw Feb 20

Common materials and material requirements of barrel and screw

Common materials for barrel and screw: Nowadays, the most commonly used and common barrel and screw materials in my country are No. 45 steel, 40Cr, nitride steel and 38CrMOAl. The following describes the performance requirements of these ma...

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How to extend the life of the film blowing machine screw Feb 07

How to extend the life of the film blowing machine screw

When we use the screw of the film blowing machine, there will be more or less wear, but if we use the correct method or proper maintenance, we can extend the life of the film blowing machine screw. In the process of daily use, we need mater...

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How to choose the extruder barrel screw? Jan 30

How to choose the extruder barrel screw?

There are many factors that affect the choice of extruder barrel screw. If the extruder barrel screw is not selected properly, it will lead to insufficient work intensity and shorten its working life. Let's analyze how to choose the extrude...

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Performance characteristics of PE pipe Jan 23

Performance characteristics of PE pipe

1. Non-toxic and sanitary: The pipe material is non-toxic and belongs to the green building material, does not corrode, and does not scale. 2. Corrosion resistance: Polyethylene is an inert material. Except for a few strong oxidants, it can...

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Reasons for screw wear of pipe extruder Jan 16

Reasons for screw wear of pipe extruder

1. Every plastic has an ideal plasticizing temperature range, and the processing temperature of the barrel should be controlled to make it close to this temperature range. Granular plastic enters the barrel from the hopper and first reaches...

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Features of PE water supply pipe production line Jan 09

Features of PE water supply pipe production line

Strong resistance to external pressure: The outer wall has a ring-shaped corrugated structure, which greatly enhances the ring stiffness of the pipeline, thereby enhancing the resistance of the pipeline to soil loads. The performance of HDP...

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The difference between twin screw extruder and single screw extruder Dec 31

The difference between twin screw extruder and single screw extruder

The extruder screw is suitable for ordinary plastics, PA, PP, PC, PE, ABS, AS, PS, PVC, PMMA, LCP, PBT, PET, PPC, PPS, PAR, PO, magnetic powder, ceramic powder, aluminum magnesium powder, Engineering plastics such as iron powder and bakelit...

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What is the production process of the twin-screw granulator? Dec 26

What is the production process of the twin-screw granulator?

1. Dry cutting process of twin screw granulator Dry pellet production means that after extruding the strips in the plastic pelletizer, the rotating blades immediately cut them into uniform-length pellets, and then send the pellets to the co...

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