PU Elastomer Raw Material
For PU Screens & Mining Parts
High-performance polyurethane elastomer systems for vibrating screens, mining screen panels, hydrocyclone liners, chute liners, and heavy-impact wear parts. Engineered for ultra-high abrasion resistance and impact tolerance in harsh mining environments.
PU Elastomer Materials for Mining & Mineral Processing
Blendpolyol supplies polyurethane elastomer raw material systems for manufacturing vibrating screen panels, hydrocyclone liners, transfer chute liners, slurry-pump components, dewatering screens, and heavy-impact wear parts used in mining, mineral processing, and aggregate operations.
Our formulations deliver:
- Abrasion resistance 20–40 mm³ (DIN 53516) — 3–8× longer life than rubber
- Impact tolerance under repeated material drop (drop-test verified 1,000+ cycles)
- Hardness range Shore A 60–95 for tunable cushioning vs cut-through resistance
- Hydrolysis resistance for wet processing (polyether systems)
- Chemical resistance to mild acids / alkalis used in mineral flotation
Typical Applications
Vibrating Screen Panels
Open-area customized for specific cut sizes (0.5 mm – 100 mm aperture).
Hydrocyclone Liners
Slurry-handling cyclone underflow / overflow protection.
Transfer Chute Liners
Impact + sliding wear protection for ore transfer points.
Slurry Pump Components
Impeller covers, suction liners, dispatch components.
Dewatering Screen Panels
High open-area for fine-particle dewatering operations.
Mill Liner Inserts
Polyurethane composite mill-liner systems for AG / SAG mills.
Vibrating screen panel — Shore A 60-95 cushion + cut
Hydrocyclone / sieve bend installation
Typical Technical Parameters
Actual parameters customizable according to formulation design and application requirements.
Compatible Production Processes
Vacuum Casting
For precision parts requiring void-free casting.
Open Mold Casting
Suitable for large parts and simple geometries.
Centrifugal Casting
Used for cylindrical components requiring uniform density.
Automated Casting
Compatible with PU casting machines and automated dispensing.
One-Stop PU Elastomer Solution
Besides polyurethane raw materials, Blendpolyol also provides matched equipment and tooling — making us a complete production-line partner, not just a chemical supplier.
- PU elastomer casting machines (manual, semi-auto, fully-automatic)
- Metering and mixing systems (low-pressure & high-pressure)
- PU molds (steel / aluminum, custom design)
- Heating systems (drum heaters, mold heaters, oven systems)
- Complete production line solutions with engineering support
We support customers from raw material selection → equipment matching → process optimization → mass production.
Frequently Asked Questions
How does PU compare to rubber for screen panels?
PU screen panels typically run 3–8× longer service life than NR/SBR rubber under same conditions. Higher upfront cost but lower total cost per ton processed. PU also gives consistent aperture stability — no aperture creep over service life.
What grit size can your hardest formulation handle?
Our Shore D 65–75 hot-cast TDI systems handle hard-rock crushing applications (granite, basalt, iron ore). For ultra-hard ore (e.g., taconite, magnetite), we can supply ceramic-loaded composite systems.
What hardness range can you provide?
We provide formulations from soft elastomer systems (Shore A 60–70) to ultra-hard industrial materials (Shore D 70–75). Specific hardness is tuned via prepolymer NCO content + chain extender ratio.
MDI vs TDI systems — which is right for me?
MDI systems provide higher load-bearing performance and lower toxicity (no free TDI vapor) — preferred for indoor casting. TDI systems offer better elasticity, rebound, and abrasion resistance — preferred for dynamic-load and high-wear applications.
Can you customize formulations?
Yes. We customize hardness, rebound, abrasion resistance, chemistry resistance, and processing characteristics. Custom formulation MOQ is typically 1,000 kg; development cycle 3–5 weeks including bench testing and customer-site trial.
Do you provide complete production solutions?
Yes. We supply raw materials, casting machines, mixing systems, custom molds, heating systems, and production line engineering support. End-to-end onboarding from formulation selection to mass production typically takes 3–4 months.
Talk to Our Elastomer Team
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