Wedge Wire Screen For Sale – field notes from the factory floor
I’ve spent enough mornings in Hebei’s industrial corridors to know a solid screen when I see one. Originating from Hehuang Road, Anping County, Hengshui, this wedge wire—also called V-wire—has that tell-tale brightness after passivation and the oddly satisfying “ring” when you tap a well-welded cylinder. In fact, this is the unglamorous hardware that keeps breweries crisp, mines productive, and wastewater lines honest. If you’re hunting for Wedge Wire Screen For Sale right now, here’s the upshot of what buyers are asking in 2025 and what the better vendors are actually delivering.
What it is, and why the industry still loves it
Wedge wire screen is a profile wire (cross-section shaped like a wedge) resistance-welded onto support rods. That geometry makes it non-clogging: gaps widen inward, fines pass, fibers don’t wedge. It’s simple, tough, and efficient—three things plants can’t do without. Trends? Higher-spec stainless (316L, Duplex 2205) as chloride loads rise; finer slots (down to 75–100 μm) for lithium brines and craft filtration; and more third-party testing to satisfy ESG audits.
Typical specifications
| Parameter | Typical Value | Notes (real-world use may vary) |
|---|---|---|
| Material grade | SS304 / 316L; Duplex 2205 optional | ASTM A240 base coil; MTC EN 10204 3.1 |
| Slot opening | 0.05–3.0 mm; tol. ≈ ±0.03 mm | Slot-gauge verified per ISO 17824 |
| Open area | ≈30–60% | Depends on wire profile and pitch |
| Diameters / Length | 25–1200 mm / up to 6 m | Longer sections via flanged joints |
| Finish | Pickled & passivated | ASTM A967; hygiene per 3-A where needed |
| Collapse strength | ≈2.5–6.0 MPa | Geometry-led; verify with hydrotest |
| Ends | Weld rings, NPT, or ASME/ANSI B16.5 flanges | Gasket selection matters more than you think |
How it’s made (quick process flow)
- Materials: Stainless coils per ASTM A240; support rods to A276, batch-traced with 3.1 certificates.
- Forming: Profile wire rolled to V-shape; rods jigged; CNC winding controls slot pitch.
- Welding: Resistance welding; heat input tuned to avoid sensitization (especially on 316L).
- Finishing: Pickling/passivation to ASTM A967; optional electropolish for food-grade shine.
- Testing: Slot gauges (ISO 17824), hydrostatic collapse tests, salt spray (ASTM B117) for coatings, dimensional checks.
- Service life: Around 3–10 years; brine/chlorides shorten it, good CIP extends it.
Where it’s used (a few real cases)
• Mining: A lithium brine pilot in South America ran 100 μm cylinders; lab data showed 0.1 mm slots at ±0.02 mm, ΔP ≈ 8–12 kPa at 20 m³/h. After 9 months, only light scaling—citric CIP fixed it.
• Breweries: Lauter tun retrofits love the non-clogging profile; many customers say cleaning time dropped “by a shift” after switching.
• Wastewater: A coastal WWTP swapped perforated baskets for wedge wire bent screens; rag carryover fell visibly (not a pretty story, but a good one).
Advantages you actually notice
- Non-clogging geometry lowers downtime (you’ll hear maintenance cheer).
- High open area boosts throughput; energy savings aren’t huge, but real.
- Rigid and round—less ovality, fewer seal issues.
- Custom shapes: cylinders, sieve bends, cones, baskets, headers.
Vendor snapshot (what buyers compare)
| Vendor | Lead time | Certifications | Slot range | Typical price | Notes |
|---|---|---|---|---|---|
| MutoScreen (Anping, Hebei) | ≈ 10–20 days | ISO 9001; MTC 3.1 | 0.05–3.0 mm | $55–$95/m² | Strong on custom ends and Duplex |
| Local fabricator | 7–14 days | Varies | 0.2–2.0 mm | $70–$120/m² | Fast service, limited profiles |
| Import aggregator | 3–6 weeks | ISO claims—verify | 0.1–3.0 mm | $60–$110/m² | Broad sourcing; QC is the swing factor |
Testing, documents, and what to ask for
- Slot verification report (ISO 17824 gauges) and hydrotest numbers (collapse/ΔP).
- Passivation cert (ASTM A967) and optional salt-spray (ASTM B117) if coastal.
- Material traceability: EN 10204 3.1 with heat numbers; for sanitary, ask for Ra data.
If you need quick guidance on sizing, share flow rate, solids loading, target cut size, chemistry, and cleaning method. A decent vendor will translate that into slot, wire profile, rod spacing, and end connection—and yes, quote it fast. For immediate availability of Wedge Wire Screen For Sale, shortlisting by slot tolerance and welding consistency beats chasing the very lowest price.
References:
[1] ASTM A240/A240M – Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip.
[2] ISO 17824 – Petroleum and natural gas industries — Downhole equipment — Sand screens.
[3] ASTM B117 – Standard Practice for Operating Salt Spray (Fog) Apparatus.
[4] ASTM A967 – Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts.
[5] EN 10204 – Metallic products — Types of inspection documents (3.1).
