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


Qingdao Lonchangjie Machine Co.,Ltd.Which have more than 20 years' experience of design and manufacture all kings of plastic extrusion lines, we have got CE, SGS, BV, IOS9001, etc.also can be provided according to client's customized requirement.

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.
Multi-Layer Pipe Plastic Extruder Machine HDPE SJ-120
Multi-Layer Pipe Plastic Extruder Machine HDPE SJ-120Performance and advantages: According to the special needs of users, we can provide 2-layer/3-layer/5-layer and multi-layer solid-wall plastic pipe production lines. Multiple extrusion plastic extruders can be unified and synchronized speed adjustment, and multiple meter weight control system can be selected , It is controlled by the main control console PLC to realize the quantitative extrusion of each extruder; The multi-layer spiral mold designed according to different layers and the thickness ratio of each layer.The reasonable distribution of mould cavity runners to ensure uniform layer thickness of the pipe and plasticizing better effect of the layer.
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.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 -
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
Professional Soft and hard PVC co-extrusion plastic machine manufacturers
Professional Soft and hard PVC co-extrusion plastic machine manufacturers.The product features the desired durability. Made of very sturdy materials, its inner circuit board can stand up harsh weather, shocks, vibrations, and abrasion.
PE PP masterbatch pelletizing line recycling granulator machine
The PE/PP strand pelletizing production line consists of five units: plastic extruder, cooling water tank, blow dryer, pelletizer. The total length is about 12 meters. It is suitable for PVC, PP, PE, ABS, PS, etc. Granulation of other engineering plastics. The PE/PP strand pelletizing production line adopts a special screw design and different configurations, which is suitable for the production of PP, PE, PET, PS, ABS, PA, PVC, PC, POM, EVA, PMMA and other plastics for recycling and color mixing. grain. The main engine gearbox adopts a high-torque design to achieve low noise and stable operation. After special surface treatment, the screw and barrel have the characteristics of abrasion resistance, good mixing effect and high output. The design of vacuum exhaust and natural exhaust port can remove moisture and exhaust gas during the production process, so that the output is more stable, the rubber particles are more dense, and the excellent quality of the product is guaranteed. The hob-type pelletizer has the characteristics of stable rotation, uniform rotation, energy saving and power saving, and safe operation. Its special mold design makes the particles more uniform. The unique design and hardening treatment of the cutter make the equipment life longer.
High Quality PVC WPC Pelletizing line/Plastic granulator machine Wholesale - 青岛隆昌捷机械有限公司
High Quality PVC WPC Pelletizing line/Plastic granulator machine Wholesale - 青岛隆昌捷机械有限公司. is manufactured in a dust-free casting and molding workshop with high-technology advanced 3D modeling equipment, to improve its productivity and mold precision.
800mm Large Diameter HDPE Water and Gas Supply Pipe Extrusion Machine
800mm Large Diameter HDPE/MDPE Water Supply and Gas Supply Pipe Extrusion Machine.The product features good heat dissipation. Front vents promote front-to-back airflow keeps it stay cool, helping keep it running smoothly.
PPR fiberglass pipe making machine/PPR pipe production line
The PPR fiberglass pipe making machine is composed of two extruders co-extrusion, a mold, a vacuum water tank, a spray water tank, a tractor, a cutting machine, and a discharge frame.The PPR pipe production line produce the glass fiber reinforced PP-R (FR/PP-R) pipes are high-performance pipes produced at low temperature and high speed through special processes and equipment using multi-layer co-extrusion.The fiber glass pipe advantages:1. The linear expansion coefficient is only about 20~30% of ordinary PP-R products; it completely solves the problem of plastic pipe expansion and contraction.2. The rigidity of the pipe is increased to prevent the pipe from sagging, and at the same time, the density and number of fixed support points are reduced, thereby reducing the overall cost of the project.3. The pressure rating is higher, and the service life is longer under the usual design tremor.4. Better high temperature resistance and obvious energy saving and consumption reduction effect; FR/PP-R is used in hot water system, and the normal use temperature can reach 95~100℃, which not only increases the temperature of the medium used, but also reduces the heat preservation material Thickness, its overall cost is lower.5. Large water flow: Under the same level of pressure, the wall thickness of FR/PP-R pipe is thin, which increases the inner diameter of the pipe, thereby increasing the water flow (increase by 20%).6. The oxygen permeability problem of the pipeline is solved, and the inner surface directly in contact with water has good sealing performance and will not form sphagnum moss. The composition of the middle layer of the FR/PP-R pipe reinforced by glass fiber completely isolates the outside air from penetrating into the pipe, thereby inhibiting the growth of algae and keeping the water quality fresh and pure
PP Strap Making Machine
PP Strap Making Machine.Applications:This PP strap band production line is used to produce mechanical or manual bands with 100% PP recycled granules as materials, if raw materials, it will be better. This kind of band is widely used in the packing of kinds of fields such as mines, general merchandise, weaving, electrical equipment, apparatus, architecture, medicine, etc.
China PVC Corner Bead/Tile Trim/Corner Angle Production Line Extrusion Machine manufacturers -
PVC corner bead production line also called PVC tile trim extrusion machine consists of a conical twin-screw extruder,  double head die, vacuum setting platform, double tractor, double punch machine, double punching die, double cutting machine, and double-station unloading rack.PVC corner angle is a new type of decoration material for the construction of wall corners, door side strips and window corners. Its strength and toughness have enabled people to safely replace steel, wood, aluminum and other traditional building materials. The current corner construction process in China has followed decades of traditional construction methods, which are very inefficient and cumbersome, and the corners of the completed buildings are very vulnerable to damage during use: on the one hand, it is due to the contact frequency of the corners. On the other hand, because the corners are not strong enough, and the damaged external corners are not repaired by maintenance personnel, the quality of the project is reduced, especially the corners of doors and windows. Family houses generally use edge wrapping, but this This kind of decoration method not only wastes a lot of wood, but also wastes a lot of money for the decoration, causing a lot of pollution. At present, the internationally used PVC corner protectors are made of high-strength polyvinyl chloride raw materials, which have the advantages of environmental protection and corrosion resistance.