Barrel body with flanged ports, deep-hole bored and honed. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
Two bores, parallel to a few hundredths of a millimetre, with the centre distance held exactly. We deep-hole bore both, hone them, then verify centre distance and bore roundness before the barrel leaves the shop.
Suitable for new builds and as a replacement body, with the port and flange layout machined to your drawing.
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 | Ø45–150 mm |
|---|---|
| Max machining diameter | Ø300 mm |
| Bore process | Deep-hole boring + honing |
| Centre distance | Machined and verified to drawing |
| Ports | Feed, vent and vacuum ports to layout |
| Material | 38CrMoAlA / bimetallic lining |
| Lead time | 35–45 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 |
Centre distance and bore roundness are measured and recorded. We supply the inspection sheet with the barrel.
If the body is sound, yes — we can reline with a bimetallic layer and re-bore. We measure first and tell you if it is not worth it.
Ø300 mm is our in-house limit. Above that we will tell you straight away rather than subcontract it silently.
For PVC pipe, profile and WPC extrusion on parallel twin-screw lines.
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Flight-profiled, match-marked pair for even plasticising.
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Alloy-lined barrels for calcium-filled and recycled PVC formulations.
View Details →Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
