20 years of R&D and production experience of plastic extruder machines.

PRODUCTS
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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!

800mm Large Diameter HDPE/MDPE Water Supply and Gas Supply Pipe Extrusion Machine
800mm Large Diameter HDPE/MDPE Water Supply and Gas Supply Pipe Extrusion Machine
Performance and advantages: The HDPE/MDPE water supply pipe and gas pipe production line independently developed by Changjie Company has a unique structure, high degree of automation, convenient operation, stable and reliable continuous production. The pipeline produced by this production line has moderate rigidity, strength, good flexibility, creep resistance, environmental stress crack resistance and good thermal welding performance. It has become the first choice for urban gas pipelines and outdoor water supply pipes.
110mm PE Pipe Extrusion Production Line
110mm PE Pipe Extrusion Production Line
110mm PE Pipe Extrusion Production Line is mainly used in the production of water supply and drainage pipes , which used for agriculture and construction , cable coating and other fields , the complete line is consisted of extruder , vacuum calibrator , hauling machine ,cutter and tipping rack , hauling machine unit has come ways of hauling , such as caterpillar type, three-claw type , four-claw type , six-claw type and so on . there are also knife-lifting cutter and planetary cutterWith this extrusion line you can produce high quality water supply and gas supply pipes with excellent hardness and flexibility.
16-63mm PE/PP Pipe Extrusion Making Machine
16-63mm PE/PP Pipe Extrusion Making Machine
1. The PE pipe production line adopts DC/AC motor, and Eurotherm DC/AC digital converter and high efficiency screw to ensure high efficiency extrusion.2. This PE pipe machine adapts basket type composite die head, which ensures not only the uniformity of high speed extrusion but also the stable performance of tubular goods.3. This PE pipe making machine adopts high efficiency double chamber vacuum calibrating technology and spray cooling bath to improve the rate of finished products of tubular goods and meet the demand of high-speed production. The vacuum bath and cooling bath adopt stainless steel.4. This PE pipe production line adopts multi-caterpillar haul-off and ensures the synchronization.5. The cutting machine adopts special saw blade with low noise, equipped with chip collector.6. The whole pipe line adopts PLC control system and large liquid crystal screen, which makes the operation very convenient.
PE/PP/PVC Single Wall Corrugated Pipe Extrusion Production line
PE/PP/PVC Single Wall Corrugated Pipe Extrusion Production line
PE/PP/PVC Single Wall Corrugated Pipe Extrusion Production lineDescription:PE PP PVC Single Wall corrugated pipe production line also called single wall corrugated pipe extruder, single wall corrugated pipe extrusion line, single wall corrugated pipe machine, single wall corrugated pipe equipment, single wall corrugated pipe extruder machine.ectThis pipe production line consists of Extruder, Mold Blocks, Corrugated Forming Machine, Cooling Equipment,Counting Machine and Auto winding system. It can continuously produce many kinds of diameter single wall corrugated pipe in high speed.We developed the mahcine on the basis of traditional structure, we give new designing on the forming table, we adopt SJ45, SJ65,SJ90,SJ120 to produce different range pipe diameter. our machine easy to operate, stable running, we provide long term after sell service.Applications:This machine can be used to produce single-wall or one wall corrugated pipe of PE,PP,PVC,EVA continuously, as well as PA corrugated pipes.plastic single-wall corrugated pipes have features of high temperature resistance, resistant to corrosion and abrasion, high intensity, good flexibility, etc. They are widely using in many fields, such as auto wire, electric thread-passing pipes, circuit of machine tool, protective pipes of lamps and lanterns wire, tubes if air condutioner and washing machine,etc...Molding corrugation pipe with smooth inside and outside surface,and even ripple at one time by corresponding die; Used as wire and cable passing pipe ,washing machine drain pipe,dust collector pipe and ventiduct; Small size corrugation pipe of 4-6.7 are used in car.
CASE
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All these for improving our product's quality, improving our company's efficiency and supplying better service to customers!

500MM HDPE THREE LAYER CO-EXTRUSION LINE WORKING IN OUR TAIWAN CUSTOMER'S FACTORY
500MM HDPE THREE LAYER CO-EXTRUSION LINE WORKING IN OUR TAIWAN CUSTOMER'S FACTORY
THIS 500MM HDPE THREE LAYER CO-EXTRUSION LINE HAVE WORKED IN OUR CUSTOMER'S FACTORE MORE THAN 5 YEARS, IN HIS COMPANY ALSO HAVE OTHER PIPE EXTRUSION LINES SUPPLIED BY US, HIS COMPANY ALSO IS ONE OF THE BEST PIPE MANUFACTURERS IN TAIWAN.
High Quality HDPE GEOCELL SHEET EXTRUSION MACHINE WORKING IN CUSTOMER'S FACTORY Wholesale - 青岛隆昌捷机械有限公司
High Quality HDPE GEOCELL SHEET EXTRUSION MACHINE WORKING IN CUSTOMER'S FACTORY Wholesale - 青岛隆昌捷机械有限公司
HDPE geocell sheet extrusion machine working in customer's factory more than 7 years, the machine make the sheet width 1.5m, also can according different moulds to make different patterns.The grid is widely used for reinforcing mad bed of expressway municipal road, railway and airport runway; reinforcement of reinforced earth on both side of road, railway and rover; strengthening the dyers of river and sea; enclosing wall of orchard, vegetable plot, domestic animal and land. The grid is made of high polymer first extruded by extruder and then drew longitudinally. The grid with high drawing strength is suitable for all kinds of soil. Its all functions and indexes surpass the earthwork net which not be drew, so it is the best ideal reinforced material. As the set is characterized by high output, good benefit, even quality and easy operation, so it is the best choice for earthwork material and plastic products manufacture to develop new products.-To stable the railway bed-To stable the highway bed-To fix the loading capacity of the dikes and the walls-Used in the river regulation-To support the pipeline and drains-To avoid the landslide and used in composite walls to support gravity loading-Used in independent wall, boatyard and river bank and so on-Used in the tidy-up of the desert, beach, river bed and the river bank
PVC board/sheet production line  working good in our customer's factory
PVC board/sheet production line working good in our customer's factory
PVC sheet production line working in our Poland customer factory,This equipment has been in operation in the customer’s factory for more than three year. Since these years, the equipment has been running smoothly without major problems. At the same time, it has created objective benefits for customers and has been recognized by customers.
HDPE three layers co-extrusion pipe production line working in customer's factory
HDPE three layers co-extrusion pipe production line working in customer's factory
This PE pipe production line has been in operation in the customer’s factory for more than 2 years. the equipment has been running smoothly without major problems. At the same time, it has created objective benefits for customers and has been recognized by customers.During 6 years, until now this customer have bought our 6 pipe lines, we have build long and good business relastionship.
ABOUT US

QINGDAO LONGCHANGJIE 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. It was founded in 2001.

During more than 20 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! ! !

IF YOU HAVE MORE QUESTIONS, WRITE TO US
Just tell us your requirements, we can do more than you can imagine.