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Product Description
Get your customized pipe line quotation with factory layout drawing within 24 hours — Send Inquiry →
This complete pipe extrusion line is engineered for HDPE water supply pipes, PE gas pipes, MPP (Modified Polypropylene) power cable conduits, and ABS/PE core pipes across the full diameter spectrum from 16 mm drip-irrigation tubing to 1600 mm municipal water mains. Nine pre-configured line packages match each diameter range to the optimal extruder, die head, vacuum sizing tank, cooling system, haul-off, and cutting module — delivering a plug-and-produce solution with output capacities from 120 to 1500 kg/hr.
Every line includes a Chenxing SJ series single screw extruder with 33:1 L/D ratio, a vacuum calibration and spray-cooling tank, a planetary or rotary cutter, an automatic stacker, and a Siemens PLC control system. Optional ultrasonic online wall thickness measurement and gravimetric dosing provide closed-loop quality control for pipe manufacturers supplying ISO 4427 (water) and ISO 4437 (gas) certified products. Lines handling 710–1600 mm large-diameter pipes use a co-extrusion configuration with two extruders feeding a single multi-layer spiral mandrel die for uniform melt distribution and color-stripe capability.
| Pipe Diameter (mm) | Extruder Model | Drive Power (kW) | Max Output (kg/hr) | Typical Wall Thickness (mm) | Line Speed (m/min) |
|---|
| 20–63 | SJ-65/33 | 37 | 120 | 2.0–5.8 | 2–15 |
| 20–110 | SJ-65/33 | 55 | 180 | 2.0–10.0 | 2–12 |
| 75–250 | SJ-75/33 | 110 | 330 | 4.2–22.7 | 1–8 |
| 110–315 | SJ-75/33 | 132 | 380 | 6.6–28.6 | 0.8–6 |
| 160–450 | SJ-90/33 | 160 | 450 | 9.5–40.9 | 0.5–4 |
| 315–630 | SJ-120/33 | 280 | 750 | 18.7–57.2 | 0.3–2.5 |
| 400–800 | SJ-150/33 | 355 | 900 | 23.7–72.6 | 0.2–1.8 |
| 710–1200 | SJ-120/33 + SJ-90/33 | 280 + 160 | 1200 | 42.2–109.0 | 0.1–1.0 |
| 1000–1600 | SJ-120/33 + SJ-90/33 | 280 + 160 | 1500 | 59.3–145.5 | 0.05–0.6 |
Need help selecting the right configuration? Contact our engineering team — provide your target pipe diameter range, material grade (PE80, PE100, PE100-RC, MPP, ABS), and monthly output in meters or tons.
The die head uses a spiral mandrel distribution system — multiple melt channels spiral around a central mandrel, merging into a uniform annular flow before the die land. This design eliminates weld lines and delivers circumferential wall thickness variation under ±2% for pipe diameters up to 800 mm. For 710–1600 mm lines, the co-extrusion dual-extruder configuration feeds melt into the same spiral mandrel die through two inlet ports — the primary extruder supplies the pipe body while the secondary extruder applies a co-extruded color stripe (yellow for gas, blue for water, red for MPP conduit — per ISO color code standards). For manufacturers also running PVC twin-screw lines or single wall corrugated pipe lines, the HDPE line adds the complementary large-diameter smooth-wall pipe capability.
Pipe sizing and cooling follow a three-stage process. Stage 1: The hot extrudate enters a vacuum calibration tank where external vacuum (—0.03 to —0.06 MPa) pulls the pipe surface against water-cooled brass sizing sleeves — locking the outer diameter to within ±0.5 mm tolerance. Stage 2: The pipe passes through a multi-compartment spray cooling tank where high-velocity water jets (15–25°C, recirculated through a chiller) cool the pipe wall uniformly to below 40°C. Spray nozzle positioning is staggered to prevent longitudinal cooling stripes that cause residual stress and warping. Stage 3: For pipes above 315 mm diameter, an additional immersion cooling tank provides gradual temperature equalization across the thick wall section — preventing internal voids and crystalline structure non-uniformity in PE100 pipe.
A gravimetric hopper loader doses HDPE granules, carbon black masterbatch (2.0–2.5% for UV-stabilized pipe), and color concentrate into the extruder feed throat at a weight-controlled rate. This eliminates the throughput variation (±5–8%) common with volumetric screw feeders and ensures consistent pigment dispersion — critical for gas pipe manufacturers where color uniformity is a certification audit point. The dosing system integrates with the line PLC: if the weigh-hopper detects a ±2% deviation from target feed rate, screw speed is automatically adjusted to compensate.
An ultrasonic transducer ring mounted after the vacuum calibration tank measures pipe wall thickness at 4 to 8 circumferential points in real time — without contacting the pipe surface. Measurement accuracy is ±0.01 mm on pipes from 20 mm to 1600 mm diameter. The data feeds into the PLC, which adjusts haul-off speed and vacuum pressure to maintain wall thickness within tolerance. For manufacturers targeting ISO 4427 (water) and ISO 4437 (gas) certification — which mandate minimum wall thickness at every point — this closed-loop control eliminates the 2–3% material over-consumption typical of manual thickness adjustment and provides an audit-ready data log for every meter of pipe produced.
Pipes from 315 mm to 1600 mm are sectioned by a planetary rotary cutter — the saw blade orbits around the stationary pipe while simultaneously rotating, producing a clean, square cut with no internal burr and minimal HDPE dust. This is a practical requirement for gas pipe: internal burrs create flow turbulence and mask defects during pressure testing. For 20–250 mm pipes, a guillotine or rotary blade cutter provides faster cycle times (under 3 seconds per cut). The automatic stacker collects cut pipes on a tilting rack — operators are not needed at the cutting station.
PE100 or PE80 granules are delivered to the extruder via vacuum loader with integrated gravimetric dosing. For colored pipes, 2.0–2.5% carbon black masterbatch (black pipe), or yellow/blue/red color masterbatch is dosed simultaneously. For MPP electrical conduit, modified polypropylene compound with flame-retardant and anti-static additives is fed directly. Material drying is not required for HDPE — but for ABS pipe production, a dehumidifying dryer (—40°C dew point) must be added upstream of the hopper.
The 33:1 L/D single screw extruder plasticizes HDPE at a melt temperature of 200–230°C. The barrier screw design with a Maddock mixing section ensures gel-free melt — any unmelted particle in PE100 gas pipe is a potential slow-crack-growth initiation point. Melt pressure at the die entry is maintained at 15–25 MPa, and a melt pump (recommended for 315 mm and above) provides pulsation-free die flow regardless of screw speed fluctuations.
The homogeneous melt enters the spiral mandrel die and exits as a tubular parison. The parison is immediately drawn into the vacuum calibration tank, where it contacts water-cooled brass sizing sleeves under vacuum. For thick-wall pipes (SDR 11 and below), two or three sequential sizing sleeves with progressively smaller internal diameters provide stepped diameter reduction — preventing the inner wall from collapsing before the outer wall has solidified.
The sized pipe passes through spray cooling tanks where water at 15–25°C cools the wall to a uniform temperature. A multi-cleat belt haul-off (20–315 mm) or caterpillar haul-off (315–1600 mm) pulls the pipe at precisely controlled speed — synchronized with extruder output to maintain target wall thickness. The planetary or rotary cutter sections the pipe to preset lengths (typically 6, 9, or 12 meters), and the automatic tilting stacker collects finished pipes.
| Application | Pipe Material | Typical Diameter (mm) | Standard |
|---|
| Municipal Water Supply | PE100 / PE80 | 63–1600 | ISO 4427, EN 12201 |
| Gas Distribution | PE100 / PE100-RC | 20–630 | ISO 4437, EN 1555 |
| MPP Power Cable Conduit | MPP (Modified PP) | 75–315 | IEC 61386, GB/T 13663 |
| HDPE Drainage / Sewer | PE100 / PE80 | 110–1600 | EN 13476, ISO 8772 |
| ABS Industrial Core Pipe | ABS | 75–400 | ISO 15494 |
| PE Silicon Core Tube | HDPE + Silicone Inner Layer | 32–63 | YD/T 841 |
| PPR Hot/Cold Water Pipe | PPR (Type 3) | 20–160 | ISO 15874 |
| PEX Underfloor Heating Pipe | PEX-a / PEX-b | 16–32 | ISO 15875 |
Producing PE pipe and want to recover production scrap? Pair this line with our shredder-extruder pelletizing system to grind off-spec pipe and edge trim into reusable PE pellets — reducing raw material cost by 15–20%. Our PET bottle washing line is also available for integrated recycling operations.
| Your Target Market | Recommended Pipe Range | Extruder | Key Add-Ons |
|---|
| Small-diameter water service / drip irrigation | 20–110 mm | SJ-65/33, 55 kW | Vacuum tank, guillotine cutter |
| Mid-range water / gas distribution | 75–315 mm | SJ-75/33, 110–132 kW | Ultrasonic thickness gauge, gravimetric dosing |
| Municipal water mains | 160–630 mm | SJ-90/33 to SJ-120/33 | Melt pump, planetary cutter |
| Large trunk water / sewer mains | 400–800 mm | SJ-150/33, 355 kW | Melt pump, planetary cutter, immersion tank |
| Extra-large water mains / sea outfall | 710–1600 mm | Dual extruder (SJ-120 + SJ-90) | Co-extrusion die, planetary cutter, multi-tank cooling |
| MPP electrical conduit | 75–315 mm | SJ-75/33, 110–132 kW | MPP screw configuration, spark tester |
The complete lineup covers 16–1600 mm across nine pre-configured packages. 20–110 mm lines for drip irrigation and service connections; 75–630 mm for municipal water and gas distribution; 400–800 mm for water mains; and 710–1600 mm twin-extruder lines for large-diameter trunk mains and sea outfall pipes.
HDPE PE80, PE100, and PE100-RC for water (ISO 4427) and gas (ISO 4437). MPP for power cable conduit (IEC 61386). ABS for industrial core pipe (ISO 15494). PPR for hot/cold water (ISO 15874). PEX for underfloor heating (ISO 15875). The extruder screw and die are configured per material at order.
MOQ is 1 complete production line configured for your target pipe diameter range and material. After the initial purchase, die heads, sizing sleeves, haul-off pads, and cutter blades can be reordered individually with no minimum quantity.
The production line is CE certified and manufactured under ISO 9001:2015. The line is capable of producing pipe certified to ISO 4427 (water), ISO 4437 (gas), and IEC 61386 (MPP conduit). Certification of the finished pipe depends on your raw material and process parameters — Chenxing provides process guidance for certification trials.
Standard delivery: 60–85 working days depending on line size. On-site installation and commissioning: 12–18 working days with Chenxing Machinery engineers. Free remote video support is available. We also provide operator training (5 working days) and production ramp-up support during the first week of commercial operation.
24-month warranty on the extruder, gearbox, vacuum tank, haul-off, cutter mainframe, and die head. 12-month warranty on electrical components, PLC, ultrasonic sensors, heating elements, and water pumps. Lifetime free online technical support. Paid on-site service within 7 working days globally.
FOB price depends on pipe diameter range, extruder model, automation level (basic PLC vs. closed-loop ultrasonic thickness control), and optional equipment. Contact our sales team with your target pipe diameter, material, and monthly output for a detailed quotation within 24 hours. Every quotation includes a CAD factory layout drawing.
Power: 37–440 kW at 380V/50Hz three-phase (60Hz available). Cooling water: 5–30 m³/hr recirculated through a chiller at 15–25°C. Compressed air: 0.6–0.8 MPa, 1–3 m³/min. Floor space: approximately 30 m × 8 m (20–110 mm line) to 80 m × 15 m (710–1600 mm line) plus raw material and finished pipe storage.
Yes. Gravimetric dosing adds color masterbatch (carbon black, yellow, blue, red) at the hopper. For gas and water pipes requiring a co-extruded color identification stripe, the 710–1600 mm twin-extruder configuration applies the stripe during extrusion via a secondary melt channel in the spiral mandrel die — no post-extrusion painting or taping required.
Two methods. Standard: manual micrometer measurement at pipe ends with operator adjustment of haul-off speed. Recommended: optional ultrasonic online thickness gauge measuring at 4–8 circumferential points in real time with ±0.01 mm accuracy — data is PLC-logged for certification audit trail and used for automatic closed-loop control of wall thickness.
The line runs a production trial at our Zhangjiagang facility using your specified pipe diameter, material grade, and SDR. Buyers attend in person or via live video. Test reports document: output rate, wall thickness uniformity, pipe ovality, melt pressure, and surface finish quality. Pipe samples are shipped with the line for your reference.
Lifetime free online technical support continues. Paid on-site service, spare parts, die heads, sizing sleeves, and process optimization consulting remain available globally. Many customers expand with Chenxing recycling systems or additional extruders — we support line expansion with CAD layout updates and material handling integration.
Chenxing Machinery has delivered complete pipe extrusion lines to water and gas pipe manufacturers in over 30 countries. Unlike suppliers who only build the extruder and outsource the downstream, Chenxing designs and manufactures the full line — die head, vacuum tank, cooling, haul-off, cutter, stacker — ensuring mechanical compatibility, consistent center height, and single-source warranty and support. Our engineering team has configured lines for PE100 pipe plants in Nigeria, MPP conduit factories in Egypt, and large-diameter water main producers in Saudi Arabia.
Your complete pipe line — extruder through stacker — is assembled and run at our Zhangjiagang facility. We produce pipe at your specified diameter, wall thickness (SDR), and material grade while you observe in person or via live video stream. The factory acceptance test report documents: output rate stability over a 4-hour run, wall thickness at 8 circumferential points per meter, ovality measurement, melt pressure and temperature, and haul-off speed consistency. The line is not disassembled for packing until you approve the test results.
Beyond equipment supply: CAD factory layout showing extruder line position, raw material storage, pipe storage racks, and utility connections; raw material sourcing recommendations with alternative suppliers in your region; English-language SOP manuals covering startup, operation, shutdown, die changeover, and troubleshooting for 20+ common production issues; 5 working days of on-site operator training during commissioning; and 1 week of production ramp-up support with remote engineering backup.
Follow Chenxing Machinery's news page for HDPE pipe market trends, PE100-RC material updates, and recycling technology developments relevant to pipe manufacturers.
Ready to launch or expand your pipe manufacturing operation? Here is the process:
You send your requirements — target pipe diameter range, material (PE100, PE80, MPP, ABS, PPR), desired wall thickness standard (SDR 11, 17, 21, 26), monthly output target, and local utility specifications
We deliver a customized proposal within 24 hours — including recommended line configuration, extruder model, die head specification, downstream equipment list, optional automation modules, FOB price, delivery timeline, and CAD factory layout
You review and refine — our engineers iterate the configuration until it matches your production goals, budget, and factory constraints
We build, test, and ship — with complete video documentation of the factory acceptance test and pipe samples from the test run included with shipment
Or email directly: ceo@cxsljx.com
Include your target pipe diameter range, material grade, and monthly output for the fastest quotation turnaround. We respond to all inquiries within 24 hours.
