Zhangjiagang Kangju Machinery Co., Ltd.
KANGJU MACHINERY is a professional manufacturer of plastic extrusion machinery, located in Zhangjiagang City, Jiangsu, China. We focus on R&D, production and sales of plastic pipe extrusion lines, WPC door & wall panel production lines, plastic profile extrusion lines, sheet extrusion lines and auxiliary equipment.
Our main product range includes:
PE / PVC / PPR / OPVC / COD pipe extrusion machines
WPC & PVC door board, wall panel extrusion production lines
Plastic profile extrusion lines (WPC, PVC, PE, PP, PA66 thermal break strips)
PC / PET / PVC sheet & hollow board extrusion lines
Auxiliary machines: high speed mixer, plastic crusher, pulverizer, haul-off & cutting machine
With rich experience in plastic extrusion industry, we can provide standard machines and customized solutions according to customers’ requirements. All our machines are strictly tested before delivery. We support factory inspection and machine test run for clients.
Our machines have been exported to Saudi Arabia, India, Poland and many other countries. We provide reliable after-sales service, including installation guidance, operation training and spare parts supply.
If you are looking for high quality plastic extrusion machine, welcome to contact us and visit our factory.
Our Services
- Pre-sale Service We provide professional technical consultation according to your production requirements. Our team will recommend suitable plastic extrusion line and auxiliary machines, offer layout plan and quotation. You are welcome to visit our factory to test the machine.
- After-sale Service We send engineers for machine installation, commissioning and operator training overseas if needed. We supply long-term technical support to solve your production problems.
- Spare Parts Supply We provide original spare parts with favorable price for all our machines. Fast delivery ensures your production runs smoothly.
- Customization Service Customized extrusion lines are available for different raw materials, product sizes and output requirements.
KingJoy provides one-stop plastic extrusion machinery solutions. We customize PVC, PPR, PE, WPC and SPC production lines for pipe, profile, wall panel
Our Company History
Zhangjiagang Kangju Machinery Co., Ltd. (Brand: KingJoy) was founded in 2015, located in Leyu Town, Zhangjiagang City, Jiangsu Province, China. We are a professional manufacturer of plastic extrusion machinery with independent import and export rights.
In the early stage, we mainly focused on the R&D and manufacturing of plastic pipe extrusion equipment, including PVC, PE and PPR pipe production lines. We relied on the mature plastic machinery industrial cluster in Zhangjiagang to continuously optimize machine structure and control system.
In 2019, we expanded our workshop and product range. We started to develop WPC & PVC door and wall panel extrusion lines, plastic profile machines and sheet extrusion equipment. Meanwhile, we absorbed advanced European extrusion technology and developed our own EIR SPC stone plastic production technology.
Over the years, our product portfolio keeps growing, covering various extrusion lines and auxiliary machines such as mixers, crushers and pulverizers. Our machines have been exported to more than 60 countries and regions, including Saudi Arabia, India, Poland and other markets.
Up to now, we have accumulated rich experience in customized extrusion solutions. We keep improving our quality control system and after-sales service system to support global customers.

We have rich experience in developing and produc
Our Team
Our team consists of experienced R&D engineers, skilled production technicians, professional foreign trade sales and after-sales engineers.
Our core technical engineers have more than 15 years of experience in plastic extrusion machinery. They are proficient in pipe, profile, WPC and sheet extrusion technology. They can design customized machine solutions according to different raw materials and output requirements.
Our production team strictly controls every processing step to guarantee machine precision and stable quality. Our foreign trade team is familiar with international trade rules and overseas market demands. We provide fast and professional communication for all customers.
Our after-sales engineers are ready to offer overseas installation, commissioning and operator training service. We work together to solve your production problems efficiently.

We believe a reliable team is the foundation of high-quality machines and long-term cooperation. Welcome to meet our team and visit our factory.