High-output XPS screw barrel sized for 1200 mm board and heavy-duty lines. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.
Wide-board lines need volume and stability at once: the screw must deliver high, flat output so the board edges hold thickness. Our 1200-duty sets are sized for the heavier extruders these lines run, with cooling zoning tuned for wide-die pressure balance.
Send your extruder size, board spec and target output; we quote screws, barrel or matched set with the cooling layout your line uses.
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 | Ø130–250 mm typical |
|---|---|
| Duty | 1200 mm board, high-output lines |
| Design | Flat-output profile for edge thickness control |
| Material | Nitrided; bimetallic for recycled feed |
| Barrel | Multi-zone cooling to line layout |
| Lead time | 40–55 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 |
Start with output stability: a surging screw shows up first at the board edges. We will ask for output readings; if the screw is worn, the profile is the fix.
We build from drawings, nameplate data or the worn parts — including the cooling jacket layout.
Both; for a set we machine screw and barrel together and set the clearance ourselves.
Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.
