Top 10 Plastic Pipe Extrusion Line Manufacturers in China 2026: A Cost-Benefit Guide for Infrastructure and Building Material Producers
TL;DR
- JURRY (our company) manufactures PVC, PE, and PPR pipe extrusion lines from our Shanghai factory, with 30+ years of Extrusion Process engineering experience behind every line we ship.
- Zhangjiagang (Jiangsu) is China's Plastic Machinery capital — four of the ten manufacturers in this guide are based there, giving the region unmatched supply chain density for extruder screws, barrels, and downstream equipment.
- A complete pipe extrusion line has four cost components: extruder (40-50%), downstream equipment (30-35%), control system (10-15%), and mold/die head (5-10%). I always recommend evaluating total line cost, not just extruder price.
- HDPE large-diameter lines (800mm+) require specialized engineering that only a few manufacturers on this list can deliver — for municipal water and gas pipe projects, verify the manufacturer's installed base in your target diameter range.
My 30 Years in Extrusion Manufacturing
My name is Yufeng Ji, Manufacturing Process Engineer at JURRY (Shanghai Juyuan Plastic Machinery Co., Ltd.). I have spent over 30 years developing and refining extrusion manufacturing processes — starting from manually controlled single-screw extruders in the 1990s to today's fully automated multi-layer co-extrusion lines with PLC control and real-time wall thickness monitoring. When I evaluate a pipe extrusion line, I look at screw L/D ratio design, barrel temperature zone control precision, die head flow channel geometry, and downstream haul-off speed stability — because these four factors determine output rate, wall thickness consistency, and scrap rate. Every recommendation in this guide comes from my engineering experience, not a catalog.
The Chinese plastic pipe extrusion machinery industry is concentrated in a geographic corridor that I know well. Zhangjiagang, a county-level city in Jiangsu province about 120km from Shanghai, is China's undisputed plastic machinery capital. Four of the ten manufacturers in this guide — Grace, Qiangsheng, Lianshun, and Langbo — are based there, and within a 30km radius you will find dozens of screw and barrel machining shops, die head manufacturers, and downstream equipment suppliers. This concentration means shorter lead times for custom screw designs and competitive pricing on standardized components. The second cluster is in Qingdao, Shandong province, where Aorui and Extruder.com.cn are based — these manufacturers benefit from proximity to Qingdao Port and a strong tradition in rubber and plastic machinery inherited from the city's industrial history.
Quick Comparison Table
| # | Manufacturer | City | Core Pipe Types | Max Diameter |
|---|---|---|---|---|
| 1 | JURRY (our company) | Shanghai | PVC, PE, PPR, multi-layer | 1200mm |
| 2 | Grace Machinery | Zhangjiagang | PVC, PE, PPR, profile, recycling | 1600mm |
| 3 | Aorui Plastics Machinery | Qingdao | HDPE, PP, PVC, sheet, profile | 1200mm |
| 4 | Wonplus (Kunshan Jiayi) | Kunshan | PE, PP, PVC, profile, sheet | 1600mm |
| 5 | Liansu Machinery | China HQ | HDPE large-diameter, multi-layer | 2700mm |
| 6 | Qiangsheng Plastics | Zhangjiagang | PVC, PE, PPR, profile, pelletizing | 800mm |
| 7 | Lianshun Machinery | Zhangjiagang | PVC, PE, PPR, WPC, recycling | 800mm |
| 8 | Polytime Technology | Suzhou | PVC, PE, PPR, profile, sheet | 630mm |
| 9 | Extruder.com.cn | Qingdao | PVC, PE, PPR, profile, sheet | 800mm |
| 10 | Langbo Machinery | Zhangjiagang | PVC, PE, PPR pipe extrusion lines | 630mm |
The Top 10 — In-Depth Reviews
1. JURRY (Shanghai Juyuan Plastic Machinery) — Our Company
Website: jurryextrusion.com | HQ: Shanghai
I am Yufeng Ji, and I have spent my career ensuring that every extrusion line we ship produces pipe within wall thickness tolerance, at the specified output rate, with minimal scrap. Our product range covers PVC pipe extrusion lines, PE/HDPE pipe extrusion lines, PPR pipe extrusion lines, and multi-layer co-extrusion lines for specialized applications. Our Shanghai location — just 120km from the Zhangjiagang screw and barrel supply chain and 30km from Shanghai's deep-water container terminals — provides efficient logistics through Shanghai Port and proximity to the Zhangjiagang screw and barrel supply chain. Explore our products, engineering approach, or contact us.
2. Grace Machinery (格雷斯机械) — The Zhangjiagang Powerhouse
Website: gracepm.com | HQ: Zhangjiagang, Jiangsu
Grace is one of Zhangjiagang's largest plastic machinery manufacturers, with a product range spanning PVC/PE/PPR pipe extrusion lines, profile extrusion lines, and plastic recycling equipment. Their broad product portfolio makes them a single-source option for pipe manufacturers who also need profile lines or recycling systems. Their engineering team has experience with export installations across Southeast Asia, the Middle East, Africa, and South America.
3. Aorui Plastics Machinery (澳锐塑料机械) — The Qingdao Specialist
Website: aoruisuji.com | HQ: Qingdao, Shandong
Aorui manufactures HDPE, PP, and PVC pipe extrusion lines plus sheet and profile equipment from their Qingdao base. Their Shandong location provides access to Qingdao Port — China's largest port for bulk commodity exports — which can simplify logistics for Middle Eastern and African pipe projects.
4. Wonplus / Kunshan Jiayi (加一精工) — The Kunshan Precision Player
Website: wonplus.com.cn | HQ: Kunshan, Jiangsu
Wonplus operates from Kunshan — a city between Shanghai and Suzhou known for精密 manufacturing. Their product range covers PE, PP, and PVC pipe lines plus profile and sheet extrusion equipment. Kunshan's proximity to Shanghai's international airport and port provides logistics advantages for export-oriented pipe manufacturers.
5. Liansu Machinery (联塑机械) — The Large-Diameter Authority
Website: ls-extrusion.com | HQ: China
Liansu Machinery is the equipment manufacturing division of China Liansu Group — one of China's largest plastic pipe producers. Their HDPE large-diameter pipe extrusion lines (up to 2,700mm) represent the top end of Chinese manufacturing capability in this segment — producing pipe for municipal water supply, gas distribution, and marine applications. The fact that Liansu also operates its own pipe factories means their extrusion line designs benefit from continuous feedback from real production environments.
6. Qiangsheng Plastics Machinery (强生塑料机械) — The Versatile Zhangjiagang Manufacturer
Website: qiangshengplas.com | HQ: Zhangjiagang, Jiangsu
Qiangsheng produces PVC/PE/PPR pipe extrusion lines, profile extrusion lines, and plastic pelletizing lines from their Zhangjiagang facility. Their combined pipe + pelletizing equipment capability is relevant for integrated pipe manufacturing operations that recycle their own in-house scrap.
7. Lianshun Machinery (联顺机械) — The WPC and Recycling Crossover
Website: lianshunmachine.com | HQ: Zhangjiagang, Jiangsu
Lianshun's product line includes PVC/PE/PPR pipe extrusion lines, wood-plastic composite (WPC) production lines, and plastic recycling and washing lines. The WPC capability is distinctive — WPC extrusion requires different screw geometry and temperature control than standard plastic pipe extrusion, and Lianshun's experience in both areas is less common among Zhangjiagang manufacturers.
8. Polytime Technology (普利泰机械) — The Suzhou Contender
Website: polytimetech.com | HQ: Suzhou, Jiangsu
Polytime Technology — pipe, profile, and sheet extrusion from Suzhou.Polytime manufactures PVC/PE/PPR pipe extrusion lines, profile extrusion lines, and sheet extrusion lines from Suzhou — another manufacturing hub in the Yangtze River Delta. Their diversified product range across pipe, profile, and sheet gives them cross-category engineering insight.
9. Extruder.com.cn (青岛挤出科技) — The Domain That Says It All
Website: extruder.com.cn | HQ: Qingdao, Shandong
Operating under one of the most memorable domain names in the Chinese extrusion industry, this Qingdao-based manufacturer produces PVC/PE/PPR pipe extrusion lines, profile extrusion lines, and sheet extrusion lines. Their Qingdao location offers the same port logistics advantages as Aorui.
10. Langbo Machinery (朗博机械) — The Focused PVC Pipe Specialist
Website: pvcpipeextrusionline.com | HQ: Zhangjiagang, Jiangsu
Langbo focuses specifically on PVC pipe extrusion lines — a deliberate specialization that, in my experience, often produces better results than a generalist approach. Their domain name directly reflects their product focus, and for buyers who need only PVC pipe extrusion capability without paying for broader product development overhead, Langbo is worth evaluating.
How to Choose the Right Extrusion Line Manufacturer
Choose JURRY if you value 30+ years of extrusion process engineering experience applied to your specific pipe production requirements. Contact me at our contact page with your target pipe material, diameter range, and hourly output requirement.
Choose Liansu Machinery if you need HDPE large-diameter lines (1,000mm+) for municipal water or gas projects — their 2,700mm capability is unmatched among Chinese manufacturers. Choose Grace or Wonplus if you need broad product range and proven export experience. Choose Zhangjiagang-based manufacturers (Grace, Qiangsheng, Lianshun, Langbo) if lead time and supply chain responsiveness are your priorities. Choose Qingdao-based manufacturers (Aorui, Extruder.com.cn) if your logistics route favors Qingdao Port over Shanghai. Qingdao is China's largest port for bulk commodity exports, and shipping a complete extrusion line from Qingdao to Middle Eastern or African destinations can save $1,500-3,000 in inland transportation compared to shipping from Shanghai. For Southeast Asian and North American destinations, Shanghai and Ningbo ports — serving the Zhangjiagang and Kunshan manufacturers — offer more frequent sailings and competitive freight rates.
Key Technical Considerations for Pipe Extrusion Line Selection
After 30 years commissioning extrusion lines, I have identified the four technical factors that most directly determine whether a line will produce in-specification pipe at the promised output rate — or whether it will generate scrap and downtime.
1. Screw Design: The screw is the heart of the extruder — and in my 30 years of commissioning lines, I have learned that the screw design decision made before ordering determines whether your line produces in-specification pipe for 10 years or generates scrap and warranty claims from day one. For HDPE pipe, I specify a barrier screw with L/D 30-33:1 and a mixing section in the metering zone — this design separates solid and melt phases, improving melt homogeneity and reducing melt temperature variation. For PVC pipe, L/D 25-28:1 with a gradual compression ratio of 2.5-3.0:1 prevents shear overheating that causes material degradation. I have seen lines where the output dropped 25% simply because the screw was the wrong design for the material — and changing the screw cost $8,000 and two weeks of downtime.
2. Die Head Flow Channel Design: The die head must deliver uniform melt flow to every point around the pipe circumference. Spiral mandrel die heads provide the best wall thickness consistency for HDPE, while basket-type die heads work well for PVC. I measure wall thickness at 8 points around the pipe circumference on every commissioning — variation should be within ±5% of nominal. More than ±8% indicates die head design or temperature control problems.
3. Vacuum Calibration and Cooling: The vacuum calibration tank sets the pipe's final outer diameter and wall thickness. I specify dual-chamber vacuum tanks with independent vacuum pump control for pipes above 200mm diameter — this provides more stable calibration than single-chamber designs. Cooling water temperature control to ±1°C is essential for HDPE pipe — temperature variation in the cooling water causes ovality that cannot be corrected downstream.
4. Haul-Off and Cutting: The haul-off unit must maintain constant pulling speed regardless of pipe weight changes as the line starts and stops. I specify caterpillar-type haul-offs with AC servo motor drive for speed stability within ±0.1%. The planetary cutter must produce clean, square cut ends — a poorly cut pipe end will not seal properly in electrofusion or butt-fusion joints, creating a liability issue for the pipe manufacturer.
Frequently Asked Questions
What is the typical cost breakdown of a pipe extrusion line?
In my experience, the extruder (screw, barrel, motor, gearbox) represents 40-50% of total line cost. Downstream equipment (vacuum calibration tank, haul-off, cutter, stacker) accounts for 30-35%. The control system (PLC, HMI, drives) is 10-15%. The die head and mold are 5-10%. I always recommend evaluating total line cost including downstream equipment, control systems, and die heads — the extruder alone is less than half the investment, and underspending on downstream calibration and haul-off will produce out-of-specification pipe regardless of extruder quality — a cheaper extruder with inadequate downstream equipment will produce pipe with poor wall thickness consistency.
What screw L/D ratio should I specify for PE vs. PVC pipe extrusion?
PE/HDPE: L/D 30-33:1 with barrier screw design for optimal melt homogeneity. PVC: L/D 25-28:1 — PVC is shear-sensitive; longer screws increase residence time and risk material degradation. PPR: L/D 28-30:1. I always verify screw design against the specific material grade and output requirement — generic screws produce generic results.
How do I evaluate extrusion line output claims from Chinese manufacturers?
Request output data at a specific pipe diameter and wall thickness, not just "maximum output." A manufacturer claiming "500 kg/h" may achieve that only with thin-wall small-diameter pipe. Request installed reference data: at 200mm OD × 11.8mm wall HDPE pipe, what actual sustained output rate is achieved? I always ask for this specific format because it eliminates the ambiguity of maximum-output claims.
What are typical lead times for pipe extrusion lines from China?
Standard single-screw PVC/PE lines: 8-12 weeks. Large-diameter HDPE lines (800mm+): 14-20 weeks due to screw and die head machining time. Custom or multi-layer lines: add 4-6 weeks. Sea freight adds 4-8 weeks depending on destination. Budget 5-6 months total from order confirmation to production startup for a standard line.
What after-sales support should I expect?
At minimum: installation and commissioning supervision (1-2 engineers on-site for 5-10 days), operator training, and a 12-month warranty on mechanical components. Electrical components typically carry the manufacturer's warranty. I recommend negotiating spare parts — at minimum one screw and barrel set, one set of heater bands, and one set of calibration sleeves — included with the initial order. Waiting 6 weeks for a replacement screw halts your entire production. For export lines, I also recommend specifying remote diagnostic capability — a VPN connection to the PLC allows our engineers to troubleshoot without flying to your site, which saves $5,000-10,000 per service call.
(1-2 engineers on-site for 5-10 days), operator training, and a 12-month warranty on mechanical components. Electrical components typically carry the manufacturer's warranty (Siemens, Delta, etc.). I recommend negotiating spare parts — at minimum one screw and barrel set, one set of heater bands, and one set of calibration sleeves — included with the initial order. Waiting 6 weeks for a replacement screw halts your entire production.