
Municipal Water Supply
Reliable PVC-U pipe production for demanding infrastructure projects.
01 PVC PIPE EXTRUSION LINE
Full automatic PVC-U pipe production for water supply, drainage and construction applications.
Energy-saving twin-screw extrusion, precise cooling and cutting, with intelligent PLC control.
Full auto 75–250mm PVC water/drainage pipe production line. Energy-saving twin screw extruder, precise cooling & cutting, PLC intelligent control. Stable output, low power consumption, customizable full-automatic configuration. Durable structure, high-quality finished pipes for municipal & construction projects.






Reliable PVC-U pipe production for demanding infrastructure projects.

Reliable PVC-U pipe production for demanding infrastructure projects.

Reliable PVC-U pipe production for demanding infrastructure projects.

Reliable PVC-U pipe production for demanding infrastructure projects.
Covers key pipe sizes for flexible production.
Stable output supports efficient continuous production.
Precise control keeps product quality stable.
Reliable drive control keeps operation stable.
Stable output supports efficient continuous production.
Global service supports installation and training.








| 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 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 m/min. | 350 kg/h |
| BQS630 | 315~630 | SJZ92/188 | 110 KW | 1.2 m/min. | 600 kg/h |
Integrated factory and exporter with independent R&D, mould machining, complete machine inspection, and overseas commissioning support.






Polestar Machinery arranges machine packing, container loading checks, and export delivery coordination for plastic extrusion lines and auxiliary equipment.












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.
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.
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.
Reasons: Excessive moisture in raw materials; cooling water seepage into un-solidified pipe. Solutions: Dry pellets before production; check sealing of sizing sleeve to stop water leakage.
Reasons: Worn rubber traction pads, uneven clamping pressure, unstable VFD control. Consequence: Fluctuating pipe size & wall thickness. Solutions: Replace aging rubber pads; adjust clamping force; recalibrate traction inverter.
Reason: Over-tight clamping force of haul-off tracks. Solution: Loosen traction pressure appropriately.
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