Groove-feed or smooth-bore screw barrel for HDPE PE100 pressure pipe lines. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
PE100 pressure pipe tolerates no unmelted particles or pressure surges. Our PE pipe screws deliver a fully homogenised melt at high output with a gentle, stable melt temperature — available in groove-feed (for high-output HDPE) or smooth-bore layouts to match your feed housing.
Built for pipe diameters from 16 mm to 1600 mm on extruders from Ø45 to Ø150. Tell us the pipe standard you run (PE80 / PE100, SDR class) and we size the compression and mixing sections accordingly.
Quote within one business day. We reply with a matching proposal, delivery date and price — no generic catalogue PDF.
Standard range shown. Every dimension below can be changed to your machine, resin and output — custom manufacturing is our daily business.
| Screw diameter | Ø45–150 mm |
|---|---|
| L/D ratio | 28–33 for pipe grades |
| Feed section | Groove-feed or smooth-bore, to match housing |
| Melt stability | ±1–2 °C at line speed |
| Material | 38CrMoAlA nitrided / bimetallic for recycled feed |
| Output gain | Typically +15–25% vs worn GP screw |
| Lead time | 30–40 days |
The honest answer depends on your resin, not on price. Here is how we advise customers.
| Gas Nitrided (38CrMoAlA) | Bimetallic Alloy Lining | |
|---|---|---|
| Best for | Unfilled PE, PP, PS, ABS, virgin PVC | Glass-filled, mineral-filled, recycled, corrosive |
| Surface hardness | HV 900–1020, depth 0.45–0.7 mm | Alloy layer 2–5 mm, metallurgically bonded |
| Typical service life | Baseline | 3–5× baseline on abrasive resin |
| Cost | Lower | Higher, recovered through fewer stoppages |
| Certification | MTC with heat number | MTC + hardness records, third-party on request |
Groove feed gives higher output and better pressure stability for PE100, but needs a cooling jacket and torque headroom. Smooth bore is gentler and cheaper to retrofit. Send your extruder model and we recommend honestly.
Yes — send the lining brand or hardness spec if you have one; otherwise we select from our standard alloy range based on your resin and filler load.
Yes, with a bimetallic barrel and a mixing section tuned for contamination — recycled feed is where nitrided barrels die fastest.
Complete set for PE/PP pipe, film, sheet and pelletizing extrusion lines.
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Degassing barrel with vent port for LDPE/HDPE with moisture or volatile content.
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Grooved feed section for high-output HDPE pipe extrusion.
View Details →Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
