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Product Description
PVC pipe looks simple — a round section, a wall thickness, a socket. In production it is anything but: the material is heat-sensitive, the powder must be plasticized evenly, the melt must be shaped before it sags, and the finished pipe must hold pressure for fifty years. Five decisions define whether a pipe line pays back or becomes a maintenance burden.
PVC, UPVC and CPVC all degrade when they overheat or dwell too long. A screw that cannot plasticize gently at controlled temperature produces burn marks, weak welds at the socket and rejected pipe.
Response: the line is built on a conical double screw extruder (SJSZ51/105 through SJSZ92/188) with air-cooled ceramic heater bands, a high quality gearbox and distribution box, better gearbox cooling and an advanced vacuum system. According to different formulations, Chenxing supplies different screw designs to ensure good plasticizing effect and high capacity.
A processor rarely makes a single diameter. Without quick die changes, every new size means downtime and scrap.
Response: the extrusion die head uses a bracket structure with each material flow channel placed evenly, heat treated, mirror polished and chromed so the material flows smoothly. The die head is modular design, easy for changing pipe sizes, assembling, dismantling and maintenance — and it can produce single layer or multi-layer pipe.
Wall thickness variation is where pipe profit disappears: extra grams per meter on every pipe, plus pressure-test failures.
Response: calibration and haul-off work together. The advanced vacuum system locks the outside diameter immediately after the die, while the haul-off unit pulls at a matched speed — and the whole train is available as a complete PVC pipe extrusion solution.
PVC pipes are socketed. If the cut end is not chamfered, the joint is difficult to insert and prone to leaking.
Response: the cutter is controlled by Siemens PLC with chamfering function, working together with the haul-off unit for precise cutting, with an aluminum clamping device, advanced hydraulic system and dust collection system. The customer can set the length of pipe they want to cut.
A scratch on the pipe surface is a visible defect that buyers reject — and it usually happens at the end of the line.
Response: the stacker uses a stainless steel pallet to prevent scratch of pipe surface, with the pipe falling into the collection area automatically. Length: 6000 mm.
The UPVC PVC CPVC Pipe Manufacturing Machine is a complete twin screw pipe extrusion plant that converts PVC powder into pressure pipe, drainage pipe and CPVC hot-water pipe — from 16 mm up to 630 mm outside diameter, in single-layer or multi-layer construction, matched to the pipe family covered by Chenxing's pipe extrusion line range and the wider pipe extrusion line solution.
Extruder type: conical double screw extruder
Motor brand: Siemens Beide
Inverter brand: ABB
Material of screw and barrel: 38CrMoAlA
Temperature controller: Ormon
Relay: Delixi
Industrial voltage: based on customer requirement
Customization: available
Warranty: 12 Months
PVC powder + additive → high speed mixing → conical twin screw extruder → extrusion die head → vacuum calibration & cooling → haul-off → PLC cutter with chamfering → stacker
| Model | Pipe diameter (mm) | Extruder | Max. Output (kg/h) | Max. speed (m/min) |
|---|---|---|---|---|
| PVC-50X2 | 16-50 | SJSZ51/105 | 150 | 6 |
| PVC-110 | 50-110 | SJSZ51/105 | 150 | 6 |
| PVC-160 | 63-160 | SJSZ65/132 | 300 | 5 |
| PVC-250 | 110-250 | SJSZ80/156 | 400 | 3.5 |
| PVC-315 | 160-315 | SJSZ80/156 | 400 | 3 |
| PVC-450 | 250-450 | SJSZ92/188 | 700 | 1.5 |
| PVC-630 | 315-630 | SJSZ92/188 | 700 | 0.9 |
The same extruder platform serves several pipe ranges, so a processor can start with a small diameter line and step up in capacity without changing technology.
Both conical twin screw extruders and parallel twin screw extruders can be applied to produce PVC pipe. With the latest technology, the machine lowers power consumption while ensuring capacity. Quality screw and barrel, air cooled ceramic heater, high quality gearbox and distribution box, better cooling of gearbox and an advanced vacuum system are standard.
The extrusion die head applies a bracket structure, with each material flow channel placed evenly. Each channel is heat treated, mirror polished and chromed to ensure material flow smoothly. The die head is modular design, easy for changing pipe sizes, assembling, dismantling and maintenance, and can produce single layer or multi-layer pipe.
Downstream of the die, the calibration and cooling sections set the final dimensions of the pipe while the advanced vacuum system keeps the roundness and wall thickness within tolerance. This is the stage that decides whether the pipe passes the pressure test.
The haul-off pulls the pipe at a speed matched to the extrusion rate, keeping wall thickness stable from the first meter to the last. For upstream material preparation, the corresponding stages are the mixing unit and powder suction machine that feed the extruder.
Aluminum clamping device, advanced hydraulic system and dust collection system. The cutter is controlled by Siemens PLC with chamfering function, working together with the haul-off unit to have precise cutting — and the customer can set the length of pipe they want to cut.
Stainless steel pallet to prevent scratch of pipe surface, with the pipe falling into the collection area automatically. Length: 6000 mm.
Every line is delivered with the control brands that keep the process repeatable:
| Component | Brand / Specification |
|---|---|
| Motor | Siemens Beide |
| Inverter | ABB |
| Screw and barrel material | 38CrMoAlA |
| Temperature controller | Ormon |
| Relay | Delixi |
| Industrial voltage | Based on customer requirement |
| Certification | CE, ISO9001:2008 |
| Warranty | 12 Months |
PVC/UPVC water supply pipe — pressure pipe for municipal and rural water networks
PVC drainage pipe — soil and waste pipe for buildings, also produced on the plastic drainage pipe machine platform
CPVC hot water pipe — high-temperature service pipe for hot water distribution
Electrical conduit — rigid PVC conduit for cable protection
Irrigation pipe — agricultural water distribution in field applications
Multi-layer pipe — co-extruded structures with a functional core or outer layer
Adjacent pipe families share the same engineering approach: see the HDPE pipe production line, the PPR pipe extrusion line solution, the corrugated pipe extrusion line solution and the other type pipe extrusion line solution.
Chenxing machines carry CE and ISO9001:2008 certification, with condition new and 12 months after-sales service. Each line is packed in wooden case with PE film protection for the sea freight, and the detailed packing and shipping plan is confirmed with the quotation for the specific model and destination port. High quality, good service and competitive price have made Chenxing machines a long-term choice for pipe producers.
Zhangjiagang Chenxing Machinery Co., Ltd. is a professional factory for plastic machinery with more than 20 years of experience, located in Zhangjiagang City, Jiangsu Province, China, exporting to many countries around the world — including Egypt, Thailand, Malaysia, India, Russia, Turkey, Zambia, Algeria and Indonesia. High quality, good service and the reasonable price of our machines have impressed customers and built long-term relationships.
The Chenxing family covers double-screw and single-screw extruders, PVC/PE/HDPE/PPR pipe lines, the 3-layer high speed PE/PPR/HDPE pipe line, ABS pipe production line, PVC WPC and window profile lines, PVC and ABS sheet machines, PVC foaming machines, PP/PE pelletizing lines, waste plastic recycling lines and auxiliary machines such as crushers, mixers and pipe belling machines. Explore solutions, company information on About Us, or browse the full catalog on Products.
Chenxing supplies double-screw extruders, single-screw extruders, PVC/PE/HDPE/PPR pipe lines, PVC WPC and window profile lines, PVC and ABS sheet machines, PVC foaming machines, PP/PE pelletizing machines, and auxiliary machines such as crushers, mixers and pipe belling machines. This PVC/CPVC pipe line belongs to the complete pipe extrusion portfolio and the profile extrusion line solution.
We have our own factory in Zhangjiagang, and you are welcome to visit at any time to see a pipe line running.
Yes. Our experienced mechanical designers provide customized design — send your pipe diameter range, layer structure and raw material formula, and we will configure the extruder, die head and downstream equipment to match.
We have an experienced R&D team that ensures the feasibility of the product before it is put into production, and professional quality inspectors who inspect raw materials before production, conduct patrol inspection during production, and carry out re-inspection before delivery.
We provide high-quality machines with a 12 Months warranty service, factory-direct pricing and responsive after-sales support from the engineers who build the line. The same team also builds our HDPE pipe line solution and PE/PP film recycling washing line.
Yes. Our engineers will guide the machine installation and train your workers on operation, die changeover and maintenance.
We accept T/T, L/C, Western Union, etc., confirmed in the formal quotation according to the project value.
We can provide technical support such as plant planning according to your requirements, including layout of the mixing, extrusion, calibration and packing stages. For more questions, visit the FAQ list or reach us from the contact page.
Tell Chenxing the pipe diameters you sell, the layer structure you need and the output you target; the engineering team will confirm the extruder model, die head set, downstream equipment and delivery schedule in a written proposal.
Nicole — Email: ceo@cxsljx.com | Tel WeChat WhatsApp: +86 159 5118 7228
Send us your pipe specification sheet, and we will reply with the recommended line configuration within 24 hours. To compare the working stations and layout in more detail, view more machine details. For the latest machine news and technical documents, see Company News and Downloads.
