Complete set for PE/PP pipe, film, sheet and pelletizing extrusion lines. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
Extrusion output is decided in the feed section. We size the channel depth, compression and mixing to your polymer and your target kg/h, then machine the barrel to match, so the set delivers the throughput you actually paid for.
Supplied for single-screw lines from Ø20 to Ø250 mm, nitrided or bimetallic, with the flange and port layout machined to your line.
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 | Ø20–250 mm |
|---|---|
| L/D ratio | 20–38 |
| Material | 38CrMoAlA / 42CrMo / bimetallic |
| Hardness | HV 900–1020 nitrided |
| Barrel bore | Deep-hole bored + honed |
| Heater / cooling zones | Machined to your line layout |
| 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 |
Tell us the polymer, die and target kg/h and we size the screw for it. We will not quote a number without knowing your resin and head pressure.
Yes — see the vented two-stage barrel. Common for recycled and hygroscopic materials.
Yes. Send the machine nameplate and the old parts, or a drawing, and we build to it.
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.
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Mixing-head screw for blown film and cast film lines.
View Details →Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
