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

Ways to reduce the abrasion of the barrel and screw Apr 16

Ways to reduce the abrasion of the barrel and screw

In order to reduce the wear of the barrel and screw, we have taken corresponding measures in the design and manufacturing process. Through continuous improvement, the barrel and screw design can adapt to different, updated and higher requir...

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Reasons for brittle failure of pvc pipes in use Apr 09

Reasons for brittle failure of pvc pipes in use

1. The influence of air hammer: When using PVC-U pipes, the air in the pipeline cannot be exhausted or the exhaust valve is set improperly. When there is gas in the pipeline, it is easy to cause airbags in the pipeline. It cannot directly c...

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What is the reason for the long service life of PE pipes? Apr 02

What is the reason for the long service life of PE pipes?

My country's plastic pipes are developing rapidly and their quality is getting better and better. The current plastic pipes are mainly PVC-U pipes, PE pipes, and PP-R pipes. Because of its excellent performance, PE pipes can be used for urb...

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What is the difference in the nature of the pipe production line? Mar 26

What is the difference in the nature of the pipe production line?

There are many plastic pipe equipment, including pipe production line, its composition: plastic pipe equipment is composed of control system, extruder, die, shaping cooling system, tractor, planetary cutting equipment and turning frame. Eac...

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Structural characteristics of barrel screw Mar 19

Structural characteristics of barrel screw

1. The structure difference between conventional, low-filling and high-filling (1) Geometry and matching relationship of thread rib and thread groove Less CaCO3: larger between screw and screw Large calcium carbonate content: In order to in...

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The difference between PVC pipe and stainless steel pipe Mar 12

The difference between PVC pipe and stainless steel pipe

Stainless steel pipes have a longer service life. Although today’s PVC pipe production lines have advanced technology, their performance still cannot surpass stainless steel pipes. It should be known that the tensile strength of stainless s...

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Plastic crusher classification Mar 05

Plastic crusher classification

1. Hard plastic crusher 1. ABS, PE, PP board and other boards are crushed and recycled. 2. The rectangular feeding port is uniquely designed for the crushing of plate materials, which facilitates the crushing of long-striped plates and impr...

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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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