About us
Bloom (Suzhou) Materials Co., Ltd. manufactures extruder screws, barrels, and twin-screw elements for plastics processors worldwide.
What we make
- Extruder screws — single screw and twin-screw, from general-purpose through barrier, vented two-stage, and application-specific geometries
- Barrels — nitrided and bimetallic, including nickel-alloy and tungsten-carbide-bearing liners
- Twin-screw elements — conveying, kneading, and mixing elements, built to configuration
- Rebuilding and reverse engineering — from your worn parts or drawings, including oversize screws matched to a honed bore
Materials and surface engineering
Our core capability is matching metallurgy to duty. We work in customized nickel-chromium and tungsten-molybdenum alloys, alongside nitrided 38CrMoAlA, hardfacing alloys, and carbide-bearing bimetallic constructions — because abrasion, corrosion, and high-temperature service are three different problems, and a screw specified for one will fail at another.
That means we’ll also tell you when you don’t need the expensive option. A standard nitrided screw on unfilled, non-corrosive duty is the right answer, and we’d rather say so than sell you protection you’ll never consume.
Industries we build for
Compounding and masterbatch · pipe, profile and sheet · blown and cast film · wire and cable (PVC, XLPE, LSZH) · fiber spinning and nonwovens · engineering plastics and high-temperature resins · fluoropolymers · medical tubing · lithium battery separator, dry electrode and packaging films · photovoltaic encapsulant film · recycling and WPC.
We publish technical guidance across all of these on this site — not marketing copy, but the working detail our engineers use: clearance limits, compression ratios, alloy selection, failure diagnosis. If you want to know how we think before you talk to us, read those.
Documentation with every part
Every screw and barrel we ship is accompanied by:
- Material certificate for the base steel and surfacing alloy
- Hardness and case-depth report
- Dimensional inspection record against the drawing
- Straightness (TIR) record
We publish a buyer’s inspection checklist so you can verify what we send. A manufacturer who measures can produce these reports; one who doesn’t, can’t produce them afterward. We’d rather you check.
How we work
- Tell us the duty, not just the dimensions — the material you process, filler content, temperatures, throughput, and what went wrong last time.
- We specify, and we explain why — geometry, base steel, and surface treatment, with the reasoning.
- We build to drawing, or reverse-measure your existing part — no drawing required.
- We document it — so it’s verifiable on arrival and repeatable on reorder.
Contact
Bloom (Suzhou) Materials Co., Ltd.
Email: kara@ttxalloy.com
WhatsApp: +86 139 1491 2658
Web: extruder-parts.com
