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.
63mm PE three layer co-extrusion pipe plastic machine
63mm PE three layer co-extrusion pipe plastic machine
For the production of PE three-layer co-extruded and other pipes, a small amount of new materials can be used for the inner and outer layers, and a large amount of recycled materials can be used in the middle, which is economical and practical. The range that can be produced is 20-630mm, and two-layer or multi-layer co-extruded pipes can also be customized according to the actual requirements of customers. The production line uses the company’s special high-efficiency extruder for HDPE, PP, PPR pipes. The screw adopts a barrier and mixing head structure. Very stable.Spiral die head designed for HDPE and PP large-diameter thick-walled pipes. The die has the characteristics of low melt temperature, good mixing performance, low cavity pressure and stable production. The proprietary sizing and cooling system adopts water film lubrication and water ring cooling to meet the requirements of HDPE and PP materials to ensure the stable diameter and roundness of thick-walled pipes produced at high speed. The specially designed multi-stage vacuum sizing box with vacuum degree control ensures the dimensional stability and roundness of HDPE and PP pipes. The extruder and tractor are driven and controlled by imported brand-name governors, which have good stability, high precision and reliability. High sex.1. Co-extrusion with multiple low-energy, high-efficiency single-screw extruders.2. The extruder adopts a high-speed screw with a length-to-diameter ratio of 33:1, and the nitriding depth is over 0.08 mm.4. The mold can be customized according to the actual situation of the customer.
250mm HDPE Three-layer Pipe Co-extrusion Plastic Extruder Machine
250mm HDPE Three-layer Pipe Co-extrusion Plastic Extruder Machine
250mm HDPE Three-layer Pipe Co-extrusion Plastic Extruder Machine.PE PP pipe co-extrusion production line can make one or multi-layer pipe, which 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.
China Changjie HDPE geocell sheet production line manufacturers -
China Changjie HDPE geocell sheet production line manufacturers -
HDPE geocell sheet production line Description:plastic geocell production line SJ series plastic single direction drawing earthwork grid set is a new product developed by our company on the base of absorbing and digesting advanced technology from the world The line for the production of Geocell, the product is a thermoplastic sheet by ultrasonic welding method to connect the commencement of three-dimensional honeycomb-style geotextile products, geocell unique three-dimensional structure, with soil, sand, stone and other filler composition of different cohesion, different stiffening strength, different thickness of the cushion, the price used in railway, road embankment, slope protection, construction of defense walls and so on.Applications: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
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All these for improving our product's quality, improving our company's efficiency and supplying better service to customers!

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.