Product Overview
UHMWPE Wear Pads are finished polymer components used at sliding, guiding, supporting, and wear-contact points in industrial equipment. Unlike flat sheet stock, machined wear pads can be supplied with the required dimensions, profiles, mounting holes, slots, grooves, steps, countersinks, and counterbores. Parts can be produced from drawings, specified dimensions, or existing samples.
Specifications
|
Property |
Standard Range / Specification |
|
Material Grade |
UHMWPE (3 Million - 9 Million Molecular Weight) |
|
Density |
0.93 - 0.95 g/cm3 |
|
Shore Hardness |
60 - 68 Shore D |
|
Tensile Strength |
20 - 25 MPa |
|
Elongation at Break |
Greater than 300% |
|
Compressive Strength |
20 - 30 MPa |
|
Dynamic Coefficient of Friction |
0.10 - 0.20 (Dry vs. Steel) |
|
Water Absorption |
Less than 0.01% |
|
Continuous Operating Temp. |
-80°C to +80°C |
|
Melting Point |
130°C to 136°C |
|
Standard Machining Tolerance |
ISO 2768-m (or as per drawing) |
Key Performance Advantages
High Abrasion Resistance: Outperforms conventional metals and standard plastics under continuous sliding wear, extending equipment maintenance cycles.
Low Coefficient of Friction: Delivers a self-lubricating sliding interface that minimizes mechanical drag, wear on mating parts, and operational noise.
Exceptional Impact Strength: Absorbs heavy dynamic loads and structural vibration without cracking or permanent deformation.
Corrosion and Chemical Resistance: Near-zero moisture absorption ensures dimensional stability and long-term durability in wet, chemical, or outdoor environments.
Lightweight Efficiency: At roughly 1/8th the weight of steel, components simplify installation, reduce dead weight, and lower shipping costs.
Industrial Applications
Conveyors & Packaging Lines: Guide rails, chain support tracks, wear strips, slide plates, and bottle handling guides.
Chutes, Hoppers & Bins: Impact pads, protective liners, and discharge sliding pads that promote smooth bulk material flow.
Material Handling & Automation Equipment: Feeders, transfer tables, robotic palletizer guides, and overhead crane slide blocks.
Heavy Machinery & Earthmoving Equipment: Outrigger pads, telescopic boom wear pads, slide bearings, and scraper blades.
Marine & Port Facilities: Dock fender pads, rubbing strips, boat davit guides, and marine pile protection.
Standard and Custom Configurations
Pads and Plates
Rectangular, square, stepped, and profiled wear surfaces.
Guides and Strips
Sliding strips, chain guides, wear tracks, and guide blocks.
Rotary Shapes
Discs, rings, washers, and cylindrical bushings.
Precision CNC Machining Capabilities
Fastener Machining
Through holes, slotted holes, countersinks, and counterbores for flush fastener installation.
Surface Profiles
CNC milling of grooves, recesses, steps, chamfers, and radiused edges.
Custom Contours
Full 3D surface machining according to technical CAD models.
Material & Engineering Selection Guide
Load & Pressure Assessment: Calculate static and dynamic contact pressures (Contact Pressure = Load / Effective Contact Area) to verify optimal pad thickness and grade.
Sliding Speed & Thermal Limits: Ensure continuous surface temperatures do not exceed 80°C (176°F) under high-speed sliding friction.
Environmental Exposure: Select FDA-compliant virgin grades for food processing, carbon-filled grades for anti-static environments, or MoS2-enhanced grades for high-load sliding applications.
Quality Control
100% Drawing Compliance: Verification of overall length, width, thickness, hole-center distances, countersink depths, and flat tolerances against CAD specifications.
International Tolerance Standards: All machining operations conform to ISO 2768-m standards or strict customer-defined tolerances.
Traceable QA Process: Raw material batch verification, in-process CMM/caliper dimensional checks, and final visual inspections prior to packaging.
Custom Ordering Guidelines
To receive a formal quotation, please provide the following details:
Engineering Drawings
2D (PDF/DWG) or 3D (STEP/IGES) files, or physical samples for reverse engineering.
Material Specifications
Required molecular weight, color, or special additives (ESD, UV, MoS2).
Operating Conditions
Estimated loads, continuous operating temperatures, and mating surface materials.
Commercial Details
Order quantity, target delivery timeline, and specific packaging requirements.
Frequently Asked Questions
Q: Can you manufacture wear pads directly from our CAD drawings?
A: Yes, we process 2D files (PDF, DXF, DWG) and 3D models (STEP, IGES) with complete precision regarding hole patterns, countersinks, and edge profiles.
Q: Can you manufacture parts from a worn physical sample without a drawing?
A: Yes. You can send us a physical wear sample. Our engineering team will measure critical dimensions, create a 2D/3D CAD drawing, and confirm all specs with you prior to production.
Q: How do I choose between Virgin, Recycled, and Modified UHMWPE?
A: Virgin UHMWPE offers superior wear, impact toughness, and FDA food compliance. Recycled grades provide a cost-effective solution for standard mechanical applications. Modified grades (MoS2, Anti-Static, Glass-Filled) are tailored for specialized friction, static discharge, or load environments.
Q: What machining tolerances can you achieve?
A: Our standard machining tolerance complies with ISO 2768-m. Tighter custom tolerances can be achieved based on part geometry and drawing requirements.
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