Barrel set configuration for masterbatch lines — side-feed to vacuum vent layout. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
Masterbatch quality is dispersion quality: the barrel layout between side-feeder and vent decides whether pigment agglomerates survive. We build barrel sets matched to your formulation — from the feed throat through kneading to vacuum — with bores that stay round where filler flows.
Tell us the carrier resin, pigment/filler loading and your machine model; we propose the segment configuration and supply it, nitrided or bimetallic.
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 | Ø20–135 mm typical |
|---|---|
| Configuration | Side-feed, kneading, vent layout to formula |
| Lining | Nitrided; bimetallic for TiO₂/filled MB |
| Cooling | Jacketed segments to match layout |
| Material | 45# / alloy steel, precision bored |
| Lead time | 30–45 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 |
Yes: worn bores hang up pigment-rich melt that carbonises and sheds specks. A re-bored or re-lined barrel plus sharp elements usually clears it.
At high loadings TiO₂ is abrasive; bimetallic lining in the melting and kneading zones is the safer investment.
Yes — send the formulation and machine model; we propose feed, kneading and vent positions before quoting.
Conveying, kneading and mixing elements for co-rotating twin-screw compounders.
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Modular barrel segments with bimetallic lining for compounding lines.
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Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
