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 is the Meltblown Extruder Screw Barrels? Jun 18

What is the Meltblown Extruder Screw Barrels?

Injection molding method uses solid materials and aluminum alloy, while direct injection method uses plastic or polystyrene materials. These two types of process produces barrels and screws that will be used in industries that are concerned...

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How to Choose the Right Barrel Screws For Your Foaming Project? Jun 11

How to Choose the Right Barrel Screws For Your Foaming Project?

Foaming barrel screws are made from a material called Diesteron, which is an oily compound that will harden when it is vulcanized. The screw will be surrounded by a hexagonal ring to make it even more durable. You can mount them right on to...

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Advantages of a Parallel Twin Screw Extruder Jun 04

Advantages of a Parallel Twin Screw Extruder

Parallel twin screw extruders are fastened together at their central shaft with a number of cross threads on both sides. They are generally used for fastening plastic fabrication work to a hard surface such as metal or wooden block. They ar...

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Maintenance and maintenance of high-speed mixer May 26

Maintenance and maintenance of high-speed mixer

When the high-speed mixer is in use, maintenance procedures should be formulated. In addition to the general equipment maintenance rules, the following matters must be noted: ①It must be carried out in accordance with the operating procedur...

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What are the functional uses of the plastic granulator? May 21

What are the functional uses of the plastic granulator?

Function: With special screw design and different configurations, it is suitable for the production of PP, PE, PS, ABS, PA, PVC, PC, POM, EVA, LCP, PET, PMMA and other plastics for recycling and color mixing granulation. The gearbox adopts ...

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Production method of twin screw extruder May 14

Production method of twin screw extruder

Our common twin-screw extruders are equipped with a double-wrist conjugate feeding system for feeding, so that large pieces of material can be directly put into the feeding hopper, and the material is forced through the double-wrist wheel. ...

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Type and cleanliness of twin screw extruder May 06

Type and cleanliness of twin screw extruder

Before using a twin-screw extruder, we must first understand what kind of extruder we need, because there are many different types of machines on the market according to our different needs, so what types of these machines are there? ? Ther...

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What are the three precautions for twin screw extruders? Apr 30

What are the three precautions for twin screw extruders?

1. Structural principles The basic mechanism of the extrusion process is a screw that rotates in the barrel, pushing the plastic forward. The spiral structure is a slope wound on the center layer, the purpose of which is to increase pressur...

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What are the technical characteristics of the twin screw extruder? Apr 23

What are the technical characteristics of the twin screw extruder?

1. Have a great safety factor Compared with the traditional production process, the automatic manufacturing technology of twin-screw extruder has a great safety factor when used. According to the setting of the development program, the tech...

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