Huatao Group-Vibrating Screen Technology Solution and Service for Quarry & Mining Industry Since 2008.
WS85 vs Trellex LS Screen Panels Compared
The Core Question
Which polyurethane screen panel is right for your plant? The answer starts with your existing deck, not with the product name.
WS85-style panels are customizable across dimensions, apertures, reinforcement, and fixing arrangements. Trellex LS is a modular screening-media system associated with Metso equipment, designed around specific module and fixing arrangements. POLYURETHANE SCREEN PANELS
Why Installation Structure Comes First
A panel can match on dimensions and still fail to fit. Differences that matter:
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Pin or ear configuration
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Retaining system
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Support rail design
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Panel thickness
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Locking geometry
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Underside reinforcement
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Module dimensions
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Deck layout
If the fixing structure does not match, the panel will not seat correctly — which changes deck slope, drainage path, and screening dynamics.
WS85 — Flexible and Customizable
WS85 can be considered when a plant needs customized polyurethane screening media. Typical applications include dewatering screens, tailings processing, fine wet screening, concentrate screening, coal and slime processing, aggregate screening, and high-abrasion mineral processing.
Customizable parameters: panel dimensions, aperture size, aperture shape, panel thickness, fixing structure, reinforcement requirements, polyurethane hardness, screening application.
Trellex LS — Modular and Standardized
Trellex LS is relevant when existing equipment already uses the Trellex LS modular installation structure. Individual modules can be handled and replaced, which simplifies maintenance and reduces the need to replace an entire screening surface when only certain modules are worn.
For plants operating multiple compatible screens, standardised modules simplify spare-parts management.
Can You Trust Wear Life and Material Claims?
"Polyurethane" alone does not define performance. Ask for:
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Polyurethane formulation
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Shore hardness
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Panel thickness
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Structural strength
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Wear resistance
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Impact resistance
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Wear and abrasion test data
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Previous applications with similar ore and conditions
Comparison Table
| Criterion | WS85 | Trellex LS |
|---|---|---|
| Installation structure | WS85-type fixing arrangement | Trellex LS modular system |
| Customization | High | Standardised modules |
| Deck compatibility | Non-standard and standard decks | Metso Trellex LS systems |
| Module replacement | Panel-level | Module-level |
| Spare-parts management | Panel-specific | Simplified |
| Best application | Custom and retrofit projects | Existing Trellex LS installations |
Total Cost Per Screened Tonne
Total Cost per Screened Tonne = Media Cost + Installation Cost + Downtime Cost + Production Loss ÷ Tonnes Screened During Service Life
A cheaper panel that fails early is the most expensive option on site. A higher-priced panel can deliver better economics through longer service life, stable aperture performance, easier replacement, and consistent screening efficiency.
Failure Analysis
| Problem | Possible Cause | Recommended Solution |
|---|---|---|
| Rapid abrasion | Wrong PU formulation or thickness | Re-specify material |
| Panel breakage | Impact loading, weak reinforcement | Review reinforcement and fixing |
| Blinding or pegging | Aperture shape, moisture | Review aperture and screen dynamics |
| Frequent replacement | Short service life | Compare cost per screened tonne |
| Poor fitment | Fixing geometry mismatch | Confirm deck structure first |
Case Study
Customer Type: Iron ore concentrator
Ore Type: Fine hematite slurry, abrasive
Operating Conditions: Wet screening, non-standard deck dimensions
Problem: Generic panels fitted poorly; panel movement; premature wear.
Solution: WS85-style panels manufactured to the exact deck drawing.
Result: Panel movement eliminated; service life increased by approximately 2×; screening efficiency stabilised.
FAQ
What is the difference between WS85 and Trellex LS?
Two installation structures, not two brands. WS85 is customizable. Trellex LS is a modular Metso-associated system.
Which one should I choose?
Start with your existing deck structure. Compatibility comes before performance.
Can a panel match dimensions but not fit?
Yes. Fixing geometry, locking design, and reinforcement must all match.
How do I verify material quality?
Request formulation, Shore hardness, thickness, reinforcement, wear test data, and prior applications.
How do I evaluate total cost?
Media + installation + downtime + production loss ÷ tonnes screened during service life.
Can HUATAO supply both?
Yes — polyurethane dewatering screen panels for both WS85-type and Trellex LS-type structures.
What information is needed before production?
Screen model, panel drawing, dimensions, fixing details, aperture specs, deck arrangement, application conditions.
Can I trial before a full deck?
Yes. Measure operating hours, tonnes processed, wear thickness, screening efficiency, blinding rate, and installation time.
Conclusion
WS85 and Trellex LS are two installation structures for polyurethane screen media. The correct choice depends primarily on the existing screen deck. Mechanical compatibility must be confirmed before wear life and screening performance can be meaningfully compared.
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Contact
Annie Lu
annie.lu@huataogroup.com
+86 18032422676 (WhatsApp / WeChat)