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.
Professional Plastic Pipe Making Machine manufacturers
Advantages of PVC pipes:1. Excellent in chemical corrosion, no rust;2. With self extinguishing and flame retardant;3. Excellent in anti aging, can be used 20years to 50 years between the temperature from subzero 15 to 60 degrees Celsius;4. Wall is smooth, inner wall surface tension, it is difficult to form scale, the fluid transport capacity of 43.7% higher than the cast iron pipe;5. The weight is light, easy to flaring, bonding, bending, welding, pipe installation workload is only 1 / 2 to the steel pipes, low labor intensity, short duration;6. Good electrical properties of resistance, volume resistance of 1 to 3 x 105Ω.cm, breakdown voltage 23 to 2kv/mm;7. The toughness of PVC pipe is low, linear expansion coefficient is high, operating temperature range is narrow.
High Capacity XPS Foam Board Machine with CE certification
XPS foam machine production line XPS extrusion polystyrene foam board, also known as the extruded polystyrene board (XPS), has a perfect obturator honeycomb structure, its density, water absorption, coefficient of thermal conductivity and so on steam permeability coefficient is lower than other types of tabular heat preservation material, thus has good intensity, light material, airtight, anticorrosion, aging resistance, low price, etc, are widely used in heat preservation and heat insulation construction, highway, railway, airport, square of the anti-freezing heat preservation, home decoration and other fields, is currently the market recognized the best thermal insulation material. Used for steel structure workshop, sheet metal housing and colour wave tile, have heat preservation effect; To make heat plate freezer, cold insulation, waterproof;
HDPE Large-Diameter Hollow Wall Winding Pipe Production Line
HDPE twin-wall helix pipe extrusion lineHDPE large diameter draining pollution pipe lineLarge diameter winding tube unitProjects conduit equipmentHollow wall HDPE winding pipe machine HDPE large diameter hollow wall winding pipes have been recognized as a substitute for cement pipes and cast iron pipes since it possesses many particular advantages. HDPE large diameter hollow pipes have big market potentiality. The line adopts two sets of single-screw extruders to ensure high speed and quality extruding; Unique design of composite die-head and forming by spiral rotation ensure high efficiency and quality; Advanced PLC Control system makes operation very convenient and operation very efficient; Special pipe fittings are adopted and connection is very convenient.Large-diameter hollowness winding pipe production lineThe Qingdao changjie machine Co.Ltd produce the large-diameter winding pipe production line for the fourth generation of product, the outlook design was already artistic, the automaticity is high, the operation is simple, the production pipe speed is quickest for the same profession. This product hits the product for the changjie Company hosts, its sales volume for this local same profession first. The present company produces the double wall winding pipe production line, only need replace the partial molds then to produce the single wall winding pipe, may save raw material to reach 40%, is suitable in the different use special demand, has made the enormous contribution for the energy conservation environmental protection!•The HDPE large –diameter hollowness winding pipe, is the country “15” the key science and technology research project. Our company through the introduction digestion overseas advance technology, has developed successfully the HDPE large –diameter hollowness winding pipe production line and puts in the market, may produce tubing caliber 200-3000mm the large pipe. This pipe is the substitution steel pipe, cement pipe's ideal draining water pollution discharge product.•The HDPE large –diameter hollowness winding pipe non-toxic, tasteless, the corrosion preventing, the anti-aging, Weather fastness is  good (-70~C to +80~C) to be possible in underground and the surface use. Widely applies in agricultural, the industry water distribution project.•This production line equipment operation is keen, the output is high, the product size is stable, the complete set production line provides the craft formula and “hands over the key” the project. 
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.
PP-H/PP large-diameter soild wall winding tank production line
The tank winding welding is to use PPH spiral extrusion winding machine to make PPH particles processed into the tank forming process. In the system, PPH particles are hot melted and extruded, and then wind into tanks on the molding mold.
HDPE large diameter hollow wall winding pipe production line
HDPE large diameter hollow wall winding pipe production lineThe HDPE large diameter hollow wall winding pipe production line is also called HDPE winding pipe extruder machine, which adopts two sets of single-screw extruders to ensure high speed and quality extruding; Unique design of composite die-head and forming by spiral rotation ensure high efficiency and quality; Advanced PLC Control system makes operation very convenient and operation very efficient; Special pipe fittings are adopted and connection is very convenient.
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.
pp strapping band extruding machine/strap bandproduction line
PP Packing Straps For Carton machine supplierPP Strapping band production line
PVC Windowsill Board Production Line
Board width(mm): 180,240,300,600,900;Thickness: 20-40 mm
PVC Square Staff Production Line
My company production of concave line and Yang Angle line, solve the existing in the construction of external Angle is not straight, the rough, not beautiful, the corner is easy to damage, etc.

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