Kneading Blocks — Dispersive and Distributive Mixing

Kneading elements for dispersive and distributive mixing. Machined in our own Henan workshop — to your drawing, or reverse-engineered from your worn parts.

18 Years Ø300 mm Max Diameter 4 + 4 Nitriding & Alloy Furnaces 30+ Countries
Kneading Blocks - Henan Xiwang Machinery
Segment Screw Barrel & Spare Parts

Kneading Blocks

Kneading blocks decide how hard you work the melt. Narrow discs with a steep stagger angle disperse fillers aggressively; wide discs with a shallow angle distribute without over-shearing. We machine both to your specification.

Hardened or wear-alloy edges depending on how abrasive your compound is.

Quote within one business day. We reply with a matching proposal, delivery date and price — no generic catalogue PDF.

Technical Data

Kneading Blocks Specifications

Standard range shown. Every dimension below can be changed to your machine, resin and output — custom manufacturing is our daily business.

Types30° / 60° / 90° stagger, custom
Disc widthTo specification
MaterialWear-resistant tool steel / alloy
Edge treatmentHardened or alloy-faced
Bore / splineTo your machine
SupplyIndividual or configured sets
Lead time25–40 days
Material Choice

Nitrided or Bimetallic — Which Bore Do You Need?

The honest answer depends on your resin, not on price. Here is how we advise customers.

 Gas Nitrided (38CrMoAlA)Bimetallic Alloy Lining
Best forUnfilled PE, PP, PS, ABS, virgin PVCGlass-filled, mineral-filled, recycled, corrosive
Surface hardnessHV 900–1020, depth 0.45–0.7 mmAlloy layer 2–5 mm, metallurgically bonded
Typical service lifeBaseline3–5× baseline on abrasive resin
CostLowerHigher, recovered through fewer stoppages
CertificationMTC with heat numberMTC + hardness records, third-party on request
Where It Runs

Applications for This Segment Screw Barrel & Spare Parts

Common Questions

Questions Buyers Ask About This Product

Which stagger angle do I need?

30° distributes gently, 60° is general purpose, 90° disperses aggressively. Tell us the compound and we advise.

How long do they last?

Depends on filler hardness and loading. On glass-filled compounds hardfaced edges last several times longer — we will give you a realistic figure for your material.

Can you match an existing configuration?

Yes, from a drawing or by measuring a sample set.

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Get a Quote for This Segment Screw Barrel & Spare Parts

Send your machine model, drawing or worn sample — we reply with a matching proposal and quotation within one business day.