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Product Description
The PPR/PPH high speed pipe production line by Chenxing Machinery is engineered for manufacturing polypropylene random copolymer (PPR) and polypropylene homopolymer (PPH) pipes ranging from 20 mm to 160 mm in diameter. PPR and PPH pipes are widely adopted in plumbing, heating, and industrial fluid transport systems due to their exceptional resistance to pressure, temperature, and corrosion. This extrusion line integrates the SJS series conical twin-screw extruder, vacuum sizing tank, haul-off unit, and cutter into a seamless production system, delivering outputs of 100–300 kg/hr with CE and ISO certification.
Designed as a turnkey pipe production solution, the line covers the complete process from raw material feeding to finished pipe stacking. The core SJS extruder features nitrided and bimetallic barrels with a tailored screw L/D ratio optimized specifically for PPR/PPH resins, ensuring homogeneous melt quality and stable output at sustained high-speed operation. For customers already running recycling systems, the line can be configured to accept reprocessed PPR/PPH regrind blended with virgin material at manufacturer-recommended ratios.
| Extruder Model | Pipe Diameter Range (mm) | Capacity (kg/hr) | Total Power (kW) |
|---|
| SJS/33 | 20–63 | 100–160 | 133 |
| SJS/38 | 20–110 | 100–200 | 195 |
| SJS/43 | 50–160 | 180–300 | 280 |
The SJS conical twin-screw geometry is purpose-designed for polypropylene random copolymer and homopolymer processing. The screw features a compression ratio of 2.2:1 to 2.8:1 with a specially lengthened metering zone that eliminates melt pulsation at high throughput. Barrel zones employ PID-controlled ceramic band heaters partitioned into 4 independent temperature zones (160°C–220°C), each with ±1°C precision, preventing thermal degradation — a critical factor for PPR resin stability. Unlike generic single-screw alternatives common in the market, this conical twin-screw configuration generates 40% less shear heat at equivalent output, preserving the polymer's long-term hydrostatic strength.
The vacuum sizing tank operates with a closed-loop water circulation system featuring dual vacuum pumps (each rated –0.03 MPa) and a precision spray cooling manifold with 24 individually adjustable nozzles. Sizing sleeves are CNC-machined from brass with surface roughness Ra ≤ 0.4 μm, ensuring the finished pipe achieves an outer diameter tolerance of ±0.1 mm at line speeds up to 15 m/min for 20 mm pipe. The rapid water-chilling circuit maintains cooling water at 15°C ± 2°C via an integrated chiller, critical for locking in dimensional stability.
The entire line is governed by a Siemens PLC with a 10-inch HMI touchscreen. Extruder RPM, haul-off speed, cutter stroke, and stacker timing are synchronized via closed-loop encoder feedback. The PLC stores up to 50 production recipes, allowing operators to switch between pipe diameters with a single tap—the system automatically adjusts all drive speeds, temperature setpoints, and cutter blade intervals. Real-time diagnostics display motor current, melt pressure (0–40 MPa sensor range), and per-zone temperature trends with data logging exportable via USB.
The caterpillar haul-off unit uses six pairs of polyurethane contact pads with pneumatic clamping force adjustable from 50–500 N. The downstream planetary cutter performs chip-free cutting with a carbide-tipped blade rotating at 600 RPM, producing burr-free end faces for pipes up to 160 mm OD with wall thickness up to 18.4 mm. Cut lengths are programmable from 0.5 m to 6 m, with an automatic stacker sorting finished pipes onto the products conveyor.
All motors are IE3 premium-efficiency class with ABB ACS580 variable frequency drives. The extruder main motor is a DC unit with thyristor control delivering constant torque across 10–150 RPM. Total installed power per model (133 kW / 195 kW / 280 kW) represents an industry-competitive figure for the rated output, achieved through optimized gearbox reduction ratios (20:1 to 28:1) that minimize transmission loss before the thrust bearing assembly.
The line executes six sequential stages under unified PLC supervision:
Raw Material Feeding — Vacuum auto-loader transfers PPR/PPH pellets plus masterbatch (typically 1.5–3% dosing) into the hopper with a gravimetric feeder maintaining ±0.5% blend accuracy.
Plasticizing & Extrusion — Material passes through the SJS conical twin-screw barrel's four temperature zones, progressing from solid conveying to fully molten state with a melt temperature of 195°C–210°C at the die entry.
Pipe Die Forming — The melt passes through a spiral mandrel die head (chrome-plated flow channels, Ra ≤ 0.2 μm), forming the tubular parison with uniform wall thickness distribution (eccentricity ≤ 0.05 mm).
Vacuum Sizing & Cooling — The hot pipe enters the vacuum tank where negative pressure draws it against the brass sizing sleeve while spray cooling solidifies the outer surface; the pipe exits at ≤ 35°C surface temperature.
Haul-Off & Diameter Monitoring — Caterpillar belts pull the pipe through a laser diameter gauge (OD accuracy ±0.02 mm) with real-time feedback to extruder speed for closed-loop OD control.
Cutting & Stacking — The planetary cutter trims pipes to preset lengths; the automatic stacker organizes finished pipes onto a storage rack for bundling and quality inspection.
| Application Sector | Typical Pipe Size | Downstream Integration |
|---|
| Hot & Cold Plumbing | 20–63 mm | Socket fusion tools, PPR fittings injection molding |
| Underfloor Heating | 16–32 mm | Manifold assembly stations, pressure test rigs |
| Industrial Chemical Transport | 50–160 mm | Butt fusion welding machines, flange adapters |
| Compressed Air Systems | 20–63 mm | Quick-connect coupling assembly |
| Rainwater Harvesting | 75–160 mm | Gutter connection fabrication |
For customers handling post-consumer PPR scrap, the line integrates upstream with a PET bottle washing and crushing line adapted for polypropylene regrind processing. All downstream tooling and auxiliary equipment can be sourced through Chenxing's complete solutions package.
| Your Requirement | Recommended Model | Rationale |
|---|
| Entry-level production, small diameters (≤63 mm) | SJS/33 | 100–160 kg/hr, lowest power consumption (133 kW), compact footprint |
| Mid-range production with diameter flexibility (20–110 mm) | SJS/38 | 100–200 kg/hr, covers the most popular residential plumbing sizes |
| High-volume industrial production (50–160 mm) | SJS/43 | 180–300 kg/hr, handles larger diameters for municipal/commercial applications |
All three models share identical auxiliary configurations (vacuum tank, haul-off, cutter) with dimension scaling adjusted per model. For customers anticipating future expansion to 160 mm, the SJS/38 can be specified with an oversized die head and extended cooling tank as a bridge configuration. Consult our news and updates for recent installation case studies in Southeast Asia and the Middle East.
The line covers 20–160 mm OD across three extruder models: SJS/33 (20–63 mm), SJS/38 (20–110 mm), and SJS/43 (50–160 mm). Wall thickness is adjustable from 1.9 mm to 18.4 mm per ISO 15874 standards. Each model ships with sizing sleeves for the customer-specified diameter range; additional sleeve sets are available for future expansion.
MOQ is 1 set per model. Chenxing Machinery manufactures each line to order based on the customer's specified pipe diameter range, output target, and local voltage/frequency requirements. Trial orders combining auxiliary equipment (mixer, chiller, air compressor) are welcome. Spare parts MOQ starts at 1 unit per SKU.
All lines are CE certified per Machinery Directive 2006/42/EC and ISO 9001:2015 quality management system audited. Electrical cabinets comply with IEC 60204-1. Individual components (motors, VFDs, contactors) carry CE/UL marks from ABB, Siemens, and Schneider Electric. Full certification dossiers are provided with each shipment.
Standard delivery is 45–55 working days from order confirmation and deposit receipt. Custom voltage configurations (e.g., 460V/60Hz for North America) add 7–10 days. Urgent orders can be expedited to 35 working days with a priority production surcharge. Sea freight transit time is additional, typically 15–30 days depending on destination port.
The line processes: virgin PPR (ISO 15874 grades), PPH, PP-B, and PP-RCT. Calcium carbonate (CaCO₃) filler up to 15% by weight is supported for non-pressure drainage pipe applications. Reprocessed PPR/PPH regrind at ≤25% blend ratio is permitted under manufacturer guidelines. Not recommended for PVC, PE, or ABS without screw and barrel reconfiguration.
24-month warranty from the bill of lading date covering all non-wear parts (extruder gearbox, motors, PLC, VFDs, electrical components). Wear parts (screws, barrels, sizing sleeves, cutter blades, haul-off pads) carry a 12-month warranty. Warranty claims are resolved via video diagnosis within 48 hours; replacement parts ship via DHL Express at Chenxing's cost.
Line pricing ranges from approximately USD 45,000 to USD 128,000 FOB Shanghai, depending on extruder model, auxiliary configuration, and automation level (manual vs. fully automatic stacking). A formal quotation including itemized BOM, factory layout drawing, and installation timeline is provided within 3 working days upon receiving your pipe diameter and output requirements.
The SJS/33 line requires approximately 28 m × 6 m (L × W), SJS/38 needs 35 m × 7 m, and SJS/43 needs 42 m × 8 m. Ceiling height minimum is 4.5 m for hopper loader clearance. Utilities: 380V/50Hz 3-phase (customizable), compressed air at 0.6–0.8 MPa (1.5 m³/min), and cooling water circulation at 8–12 m³/hr. A reinforced concrete foundation of 250 mm minimum thickness is recommended for the extruder base.
Select based on your target pipe diameter range and desired output. For residential plumbing pipes (20–63 mm) at ≤160 kg/hr, the SJS/33 is cost-optimal. For mixed production spanning plumbing through mid-size industrial pipes (20–110 mm), the SJS/38 offers the best flexibility. For dedicated high-volume production of 50–160 mm pipes at 180–300 kg/hr, the SJS/43 delivers the lowest per-kg cost.
Standard line configuration includes an inline laser OD gauge (±0.02 mm), melt pressure transducer (0–40 MPa), and per-zone temperature PID display. Recommended add-ons: hydrostatic pressure tester (for ISO 15874 long-term testing at 95°C), drop-weight impact tester, and DSC thermal analyzer for incoming resin QC. Chenxing can supply all QC equipment as a bundled package with on-site calibration training.
The standard configuration produces single-layer PPR/PPH pipes. Multi-layer capability requires an additional co-extruder (SJ25/25 or SJ30/25) for the outer layer, plus a multi-layer spiral die head. Fiber-reinforced middle-layer production adds a fiber-feeding unit. These upgrades are available as optional modules with full PLC integration. Contact our engineers for a customized multi-layer configuration.
Chenxing provides remote video-guided installation as standard, covering mechanical assembly, electrical wiring, PLC commissioning, and trial production of the first batch. On-site installation and training by a senior engineer (5–10 working days, customer covers round-trip airfare and local accommodation) is available at USD 200/day. Lifetime technical support via WhatsApp/WeChat/email at ceo@cxsljx.com with 24-hour response time. Spare parts depots are maintained in key markets: Egypt, Nigeria, Vietnam, and India.
Proprietary screw geometry developed from 18 years tracking PPR resin rheology across 40+ global feedstock suppliers — our L/D ratios and compression profiles are not publicly available from generic machinery catalogs.
Real factory, real traceability — every machine ships with a serial-numbered inspection report, third-party CE audit certificate, and photographic documentation of the factory acceptance test (FAT).
Proven export track record — 700+ extrusion lines installed in 60+ countries, with dedicated service hubs in Southeast Asia, the Middle East, and Africa where PPR plumbing demand is growing fastest.
Transparent pre-sales engineering — receive a dimensioned 2D factory layout drawing with utility point annotations before placing your order, eliminating installation surprises.
Ready to start or expand your PPR/PPH pipe manufacturing operation? Here is how we work with you:
Step 1 — Share Your Requirements: Email us at ceo@cxsljx.com with your target pipe diameter range (mm), desired hourly output (kg/hr), and local voltage/frequency. We respond within 24 hours.
Step 2 — Receive Custom Proposal: Within 3 working days, you receive a tailored quotation with an itemized bill of materials, factory layout drawing showing the line footprint, and a project timeline.
Step 3 — Factory Acceptance Test: Before shipment, we conduct a live production trial of your exact pipe specification and share video documentation. You or a third-party inspector are welcome to witness the FAT at our Zhangjiagang facility.
Step 4 — Installation & Production Launch: Our engineers guide your team through installation via real-time video call, commission the PLC, and supervise the first production batch to ensure pipes meet ISO 15874 dimensional and hydrostatic standards.
Contact us now for a quotation within 24 hours: ceo@cxsljx.com | +86 159 5118 7228 | Chenxing Machinery Home
