QINGDAO LONGCHANGJIE MACHINE CO.,LTD.(Before named as QINGDAO CHANGJIE MACHINE CO.,LTD)is located in the world-famous port and coastal open city - Qingdao,traffic transportation has three advantages in sea,land and air. During more than 15 years, changjie staff always absorb the professional technology from domestic and overseas,cooperate with domestic scientific research institution,devote our minds to research,development,design and manufacture kinds of extruding machineries,let our technology come up to the domestic and international advanced level.

Now our company has formed in Pipe production line/Plate production line/Profile production line three series of plastic extrusion line’s design, manufacture and development of comprehensive ability,meanwhile we can also provide customers the auxiliary equipment, various of molds and parts processing service!

Now our production line have sold to many countries of the world,in the north is Russia,Ukraine,Kazakstan,Mongolia,in the west is India, Iran, Egypt, Sudan,Libya, SouthAfrica,and also American,Vietnam,Singapore, Korean,Indonesia,Taiwan and so on. All these,thanks to our overseas customers’trust and support.

In order to protect our brand, “changjie”brand has been registered  in the China Industrial and Commercial Administration; In order to carry out scientific administration ,we have passed CE and ISO international quality system certificate;In order to improve the overall quality of enterprise management, we have implemented 7S on-site management standards ... ... All these for improving our product's quality, improving our company's efficiency and supplying better service to customers!

Sincere cooperation, customer first, forge ahead in unity to create a brilliant - this is our changjie staff's purpose of development! With the quality to win the market; With the management to create benefit; With innovation to pioneer development – this is our changjie staff's concept of development.

Changjie’s pursuit is common development with friends at home and abroad, mutual benefit, and creats a win-win situation! Chang Jie's goal is even higher! Even faster! Even stronger! ! General manager-Geng Yongchang, leading all the company’s staff sincerely welcome you! ! !

Our representative machines:

Our Machines CE certification:



Our Company Service: 

Pre-sale service:

•We provide presales service in various forms, for example, making investment budget,manufacturing,planning, etc. so that customers make a reasonable plan with less cost.

•Investment budgeting: We provide services of product profit analysis, recommendation of machine and auxiliary equipment and relevant budgeting, human resources allocation and budgeting.

•Plant Planning: We provide the mounting dimension of the equipment base,design of equipment layout, workshop ventilation, water transmission etc.

• Offer information of peripherals

In-sale service:

• Detailed design of lay-out that is the position of the procession

• Technological information of provided products

• Schedule about design,manufacturing and installation 

• Working & Producing progression

•Training course for the technician so that the installation is safe and standard

After-sale service:

•For customers buying our products, we provide them free training so that they can use and maintain the machine independently.

•We will answer customer's question on technology in time. If needed, we will offer on-site guidance and assistance.

•We can provide free technical guidance if customers need new equipment, add or rebuild equipment. 

• We will prioritize the product upgrade of former customers.

Our Overseas Customers:


Our Company Competitive Advantage: 

A. With 13 years specializing in producing plastic extrusion machines

B. Strong enterprise innovation, with groups of professional engineers and salesmen

C. Our high quality but low prices have gained market and public praise from domestic and overseas clients

D. We have very good and comprehensive after-sales service

E. We have no MOQ for clients and tailor-made to clients' request

F. We can also customize to your own plastic extrusion machine as long as you tell us how to do by idea, then we put your ideas into real products.