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Nom du matériau

UHMW-PE

Type de matériau

Plastique

Compatibilité des processus

Usinage CNC

Propriété Valeur
Propriétés mécaniques
Résistance ultime à la traction 38,6 - 48,3 MPa
Limite d'élasticité 21,4 - 27,6 MPa
Module de Young (module d'élasticité) 0,894 - 0,963 GPa
Allongement à la rupture 200 – 500 %
Dureté 3,4 - 8,3 HV
Propriétés physiques
Résistance aux UV Bon
Propriétés thermiques
Température de service maximale 80 - 110 °C
Coefficient de dilatation thermique 234 - 360 × 10-6/ºC
Conductivité thermique 0,19 - 0,197 W/(m⋅°C)
Propriétés électriques
Sécurité ESD Non
Applications courantes
Équipement de transformation des aliments Lignes de convoyage
Engrenages et roulements Pistons et soupapes
Équipements marins
métal pour le soudage

What Parts Are Commonly Made from UHMW-PE?

UHMW-PE (Ultra-High-Molecular-Weight Polyethylene) is widely used for industrial and engineering components that must resist friction, impact, and abrasive wear. Its self-lubricating behavior and outstanding durability make it one of the most reliable materials for high-movement, high-stress, and high-wear environments. 

Conveyor Guides, Wear Strips & Sliding Components

UHMW-PE is one of the best materials for low-friction sliding surfaces. It is commonly used for conveyor guide rails, wear strips, chain guides, star wheels, rollers, and sliding pads. Its ability to run silently and smoothly without lubrication makes it ideal for high-speed automation systems.

Gears, Sprockets & Industrial Motion Parts

Because of its excellent abrasion resistance and smooth movement, UHMW-PE is used for low-load gears, sprockets, bushings, cams, and pulleys. These parts operate with minimal noise and reduced wear, extending equipment lifespan in manufacturing and processing environments.

Chutes, Liners & Hopper Plates

Material handling equipment frequently uses UHMW-PE liners to prevent sticking, clogging, and abrasion. It is commonly installed in hopper walls, chute surfaces, container linings, and bulk material transportation systems. The material’s resistance to impact and abrasion makes it ideal for harsh industrial operations.

Marine Dock Bumpers, Fender Pads & Impact Shields

UHMW-PE performs exceptionally well in marine environments due to its toughness, low moisture absorption, and resistance to saltwater corrosion. It is used for boat dock bumpers, fender pads, sliding plates, and protective impact panels.

Food Processing & Packaging Equipment Components

Food-grade UHMW-PE is non-toxic, FDA-compliant, and resistant to cleaning chemicals, making it perfect for food contact components. Examples include cutting boards, processing plates, product guides, machine rails, and low-friction transfer parts.

Medical Components & Device Parts

In the medical field, UHMW-PE is used for joint replacement bearing surfaces, orthopedic device components, biocompatible sliding elements, and laboratory equipment. Its extremely low wear rate and compatibility with sterilization environments make it valuable for long-term applications.

Custom Industrial Blocks, Sheets & Machined Profiles

UHMW-PE is also used to create custom blocks, machined profiles, impact plates, and structural panels for industrial machinery. XC Machining produces customized UHMW-PE parts tailored to client-specific shapes, tolerances, and load conditions.

How XC Machining Ensures Precision With UHMW-PE?

UHMW-PE is one of the most challenging plastics to machine. Its softness, flexibility, thermal expansion, and tendency to produce stringy chips make precision machining difficult for general shops. 

Sharp Carbide Tools and Polished Cutting Edges

UHMW-PE requires extremely sharp tools to avoid tearing, fuzzing, or rough surfaces. XC Machining uses polished carbide cutters specifically designed for soft polymers, allowing clean, smooth cuts that maintain surface integrity and reduce heat buildup.

Correct Feed and Speed Strategy for Dimensional Stability

UHMW-PE expands quickly under heat, making improper cutting parameters risk dimensional drift. XC Machining uses low-heat machining strategies with high feed rates and moderate spindle speeds. This approach prevents melting, minimizes thermal deformation, and maintains consistent tolerances.

Specialized Fixturing to Prevent Flexing or Distortion

Because UHMW-PE is flexible, it can warp or shift under cutting pressure. XC Machining uses custom fixtures, vacuum tables, and soft-jaw supports to hold the material securely without causing deformation. This ensures stability even when machining thin walls or long profiles.

Coolant Management to Control Heat and Surface Finish

Heat must be removed efficiently when working with UHMW-PE. XC Machining uses optimized coolant flow or controlled air blasts to dissipate heat, prevent melting, and improve surface clarity. This ensures the final part maintains its shape and dimensional accuracy.

Multi-Step Machining for Tight Tolerances

UHMW-PE often requires rough machining followed by a stabilization period before final finishing. XC Machining uses a multi-stage approach, roughing, relaxing, and final finishing, to achieve stable, consistent dimensions. This is crucial for components used in precise industrial assemblies.

Dimensional Inspection After Machining and Conditioning

Due to thermal expansion and flexibility, UHMW-PE parts must be checked after cooling. XC Machining performs dimensional inspection using calipers, gauges, and CMM verification when required. Parts are allowed to stabilize before packaging to ensure accurate final measurements.

Notre UHMW-PE capacités

XC Machining propose une gamme complète de services de fabrication de précision, adaptés aux besoins de diverses industries. De l'usinage CNC au prototypage personnalisé, nous fournissons des solutions de haute qualité avec précision et efficacité, en veillant à ce que chaque projet réponde à vos spécifications exactes.
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Questions fréquemment posées

UHMW-PE

  • Is UHMW-PE suitable for outdoor or marine environments?

    Yes. UHMW-PE performs exceptionally well outdoors and in marine conditions. It resists moisture, saltwater, chemicals, and corrosion better than many engineering plastics. UV-stabilized grades offer long-term resistance to sunlight as well. This is why UHMW-PE is commonly used for dock bumpers, fender pads, and marine impact surfaces. 

  • Is UHMW-PE suitable for food and medical applications?

    Yes. Virgin UHMW-PE is FDA-approved and widely used in food processing lines, cutting boards, conveyor components, and hygienic equipment. Medical-grade UHMW-PE is also used in orthopedic implants, bearing surfaces, and biocompatible device components due to its exceptional wear resistance and low friction. XC Machining sources certified, high-purity UHMW-PE materials to ensure compliance with food, pharmaceutical, and medical standards. 

  • Can UHMW-PE be glued, bonded, or painted?

    No. UHMW-PE has an extremely low surface energy, which makes it nearly impossible to glue, paint, or chemically bond using traditional adhesives or coatings. Mechanical fastening, such as screws, press-fits, inserts, or interlocking features is the recommended method for assembly. 

  • Does UHMW-PE warp or change shape under heat?

    UHMW-PE has a relatively low heat deflection temperature (typically around 80–100°C), which means it can soften or warp in high-heat environments. It is not ideal for applications involving elevated temperatures or direct heat exposure. XC Machining evaluates every application’s thermal requirements and may recommend alternative materials, such as Nylon, POM, or PTFE, if high heat stability is needed. 

  • How long does UHMW-PE last in high-wear applications?

    UHMW-PE is one of the longest-lasting wear materials in the industry. Its molecular structure provides excellent abrasion resistance, making it outperform materials like Nylon, HDPE, and even some metals in sliding or impact-heavy environments. In conveyor systems, chutes, or industrial wear plates, UHMW-PE can last many years with minimal maintenance. 

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