Barrel for XPS foaming extruder with temperature-control design. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
Foaming is temperature-sensitive to a few degrees. An XPS barrel has to remove heat efficiently and evenly along its length, so we build in the cooling circuit the process needs rather than a generic jacket.
Flanges and ports machined to your line; bimetallic lining available.
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.
| Bore diameter | Ø65–300 mm |
|---|---|
| Design | Temperature-control, zoned cooling |
| Material | 38CrMoAlA nitrided / bimetallic |
| Flange | Machined to your line |
| Zones | Per your process layout |
| Finish | Honed bore |
| Lead time | 35–50 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 |
Foaming needs a precise temperature profile along the barrel. One uniform jacket cannot hold it.
Yes — send the drawing or dimensions, including flange and port layout.
Only if you run recycled PS or mineral additives. Virgin PS is fine on nitrided.
Big-format XPS screw sets, max machining diameter Ø300 mm in-house.
View Details →Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
