Municipal Water Supply
Reliable PVC-U pipe production for demanding infrastructure projects.
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Product Details
20~63mm Dual-Head PVC Pipe Extrusion Line is specially designed for producing PVC-U electrical conduit, water supply pipe and agricultural irrigation pipe. Equipped with a single conical twin-screw extruder matched with dual extrusion die heads, the line extrudes two pipes simultaneously, doubling production capacity while reducing investment, floor space and labor cost compared with two separate single-outlet lines. Independent dual-channel vacuum sizing, traction and cutting keep both pipes precise, stable and smooth.
Finished Products & Applications
20-63 mmPipe Range
80-120 kg/hOutput Capacity
PVC-UPipe Application
50-60 kWTotal Power
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Applications
Drainage & Sewer
Reliable PVC-U pipe production for demanding infrastructure projects.
Construction Plumbing
Reliable PVC-U pipe production for demanding infrastructure projects.
Cable Protection
Reliable PVC-U pipe production for demanding infrastructure projects.
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Core Advantages
Double Outlet Capacity
Stable output supports efficient continuous production.
Lower Investment Cost
Precise control keeps product quality stable.
Dual-Channel Downstream
Precise control keeps product quality stable.
20-63mm Pipe Coverage
Covers key pipe sizes for flexible production.
High-Calcium PVC Processing
Optimized screw design improves plasticizing stability.
Chip-Free Cutting
Precise control keeps product quality stable.
PLC Intelligent Control
Reliable drive control keeps operation stable.
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Machine Video
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Production Process
01
Raw Material Loader
02
Conical Twin-screw Extruder
03
Extrusion Die Head
04
Vacuum Calibration Tank
05
Haul-off Machine & Cutting Machine
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Pipe Stacker
07
The Production Line Consists Of
Screw Loader
1 PCConical Twin-screw Extruder Machine
1 PCExtrusion Die Head
1 PCVacuum Calibration Tank
1 PCHaul-off Machine & Cutting Machine
1 PCStacker
1 PC08
Technical Parameters
| Model | Pipe Range | Extruder Model | Main Motor Power | Max. Line Speed | Max. Output |
|---|---|---|---|---|---|
| BQS40-2 | 16~40 | SJZ51/105 | 18.5 KW | 10 m/min. | 120 kg/h |
| BQS63-2 | 20~63 | SJZ65/132 | 37 KW | 15 m/min. | 250 kg/h |
| BQS63 | 20~63 | SJZ51/105 | 18.5 KW | 15 m/min. | 120 kg/h |
| BQS160 | 50~160 | SJZ65/132 | 37 KW | 8.0 m/min. | 250 kg/h |
| BQS200 | 63~200 | SJZ65/132 | 37 KW | 3.5 m/min. | 250 kg/h |
| BQS315 | 160~315 | SJZ80/156 | 55 KW | 2.0 m/min. | 350 kg/h |
| BQS630 | 315~630 | SJZ92/188 | 110 KW | 1.2 m/min. | 600 kg/h |
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Factory Strength
20+Years Experience
20MAnnual Sales
72hPre-delivery Test
CE & ISOCertified Machines
Integrated factory and exporter with independent R&D, mould machining, complete machine inspection, and overseas commissioning support.
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Delivery & Container Loading
Polestar Machinery arranges machine packing, container loading checks, and export delivery coordination for plastic extrusion lines and auxiliary equipment.
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Customer Projects
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Frequently Asked Questions
Q1: Unstable extrusion output, fluctuating pipe diameter & wall thickness
Reasons: Blocked feeding system, uneven mixing of raw materials, worn screw/barrel, unstable main motor frequency. Solutions: Clean the feeder; check mixing formula; repair or replace worn screw; calibrate VFD parameters.
Q2: Poor plasticization, crystal dots & fish eyes on pipe surface
Reasons: Improper heating temperature, wet raw materials, mismatched screw speed, unmelted resin particles. Solutions: Dry raw materials fully; adjust barrel temperature curve; optimize screw rotation speed.
Q3: Material yellowing, black burnt spots & decomposition lines
PVC is heat-sensitive and decomposes easily under local overheating. General causes: Long material residence time, damaged temperature sensors, degraded recycled materials. Solutions: Lower overheated zone temperature; clean mold dead zones; add qualified heat stabilizer for PVC formula.
Q4: Extruder overload & high motor current alarm
Reasons: Low barrel temperature, blocked screen pack, foreign objects inside barrel, excessive filler content. Solutions: Raise temperature moderately; replace screen mesh; clean foreign debris; adjust filler proportion.
Q5: Vertical scratches & streaks on pipe inner/outer surface
Reasons: Scratched mold inner cavity, accumulated impurities, worn die lip, precipitated lubricant residues. Solutions: Polish mold surface; disassemble & clean die regularly; replace damaged die lip.
Q6: Severely uneven pipe wall thickness
Reasons: Offset mold center, unbalanced heating rings around die, partial blocked melt channels. Solutions: Re-center the mandrel; check and replace faulty heating bands; clear blocked flow paths.
Q7: Melt leakage from mold joint gaps
Reasons: Loose clamping bolts, aging sealing gaskets, uneven thermal expansion of die components. Solutions: Retighten bolts evenly; replace damaged gaskets; balance mold heating temperature.
Q8: Spiral ripples inside finished pipes
Reasons: Unbalanced melt flow inside mold, unreasonable mandrel structure, unstable melt pressure. Solutions: Optimize internal mold flow channel design and stabilize extruder output pressure.