Omar Khalid
UHMW (ultra-high molecular weight polyethylene) is an extremely durable plastic with high abrasion and wear resistance. It is a popular material for industrial applications requiring durability, low friction, and chemical resistance. UHMW is easy to fabricate and machine and is often used to replace metal bearings and bushings. SOLIDWORKS, a software used for injection molding simulation, maintains a plastics material database that is regularly updated with new materials. SOLIDWORKS users can access the database to find information on various plastics, including UHMW, and use the data in their analyses.
| Characteristics | Values |
|---|---|
| Plastic type | Polyethylene |
| Plastic grade | Ultra-high molecular weight (UHMW) |
| Properties | Tough, abrasion-resistant, wear-resistant, low friction, chemically resistant, high strength, stiff, transparent, impact-resistant |
| Applications | Industrial, marine, food and beverage processing, replacement for metal bearings and bushings, lining chutes and hoppers |
| Supplier | Curbell Plastics |
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What You'll Learn
UHMW plastic's properties
UHMW (ultra-high-molecular-weight polyethylene) is an extremely tough plastic with high abrasion and wear resistance. It is a durable, versatile, low-cost plastic material with good impact resistance. UHMW is easy to fabricate and machine and is perfect for industrial applications that require durability, low friction, and chemical resistance. It does not swell when exposed to water, making it ideal for wet environments.
UHMW has a wide range of applications, including wear strips, chain guides, packaging machinery parts, and marine dock fender pads. It is also used to replace metal bearings and bushings. UHMW sheet is often used for lining chutes and hoppers to protect metal surfaces and keep solid materials moving smoothly.
Several grades of UHMW plastic are available, including grades with enhanced bearing and wear, and FDA compliance. For example, LubX® C is an FDA-compliant UHMW with a lower coefficient of friction, eliminating the slip-stick effect or backsliding. It is used for high-performance sliding in material handling applications.
UHMW has a relatively high coefficient of thermal expansion, which may make it difficult to hold tight tolerances on UHMW parts exposed to changing temperatures. Custom sizes and colours are available upon request, and it is also available as a tape.
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UHMW plastic's applications
UHMW plastic, or Ultra High Molecular Weight Polyethylene, is a versatile material with a wide range of applications. Its unique properties, including high abrasion, impact, and wear resistance, coupled with its lightweight nature, make it ideal for both commercial and industrial uses.
UHMW is commonly used in foodservice and food storage applications. Its ease of sanitization, ability to prevent mold and bacteria, and resistance to abrasive cleaners make it a popular choice. The material is also corrosion and chemically resistant, and its availability in various finishes make it easy to match to any color scheme.
In industrial applications, UHMW is used for wear strips, chain guides, packaging machinery parts, and marine dock fender pads. Its low friction coefficient and high impact strength make it suitable for high-stress applications, such as outrigger pads for cranes and boom trucks. UHMW's performance in wet environments is another advantage, as it does not swell when exposed to water.
The material is also an ideal choice for body armor due to its impact resistance and lightweight nature, which makes it comfortable to wear. Its ability to be bent and shaped also allows it to meet the requirements of various armor designs.
UHMW's versatility, durability, and regulatory compliance make it a popular choice for companies across different industries. Its machinability further adds to its popularity, as it can be easily formed and machined into a variety of applications.
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UHMW plastic's grades
UHMW plastic, also known as UHMWPE, is an extremely tough plastic with high abrasion and wear resistance. It is easy to fabricate and machine and is perfect for industrial applications that require durability, low friction, and chemical resistance. UHMW plastic is available in several grades, including:
- Virgin UHMW: This is an unfilled grade of UHMW that is relatively low cost, abrasion-resistant, impact-resistant, and chemically resistant.
- Reprocessed UHMW: This is an economical alternative to virgin UHMW for non-food applications. It is made partially from ground UHMW that is processed into new shapes. Reprocessed UHMW is not FDA compliant.
- Anti-static UHMW: This grade can move products more safely in potentially volatile environments and help protect against static discharge or keep dust and particles from building up on the product surface.
- FDA-compliant UHMW: Some grades of UHMW comply with one or more of the FDA's guidelines for direct food contact. For example, LubX® C is an FDA-compliant UHMW with a lower coefficient of friction, and Polystone® M XDT is an x-ray detectable grade FDA-compliant UHMW for food and beverage processing.
- Enhanced bearing and wear grades: These grades offer even higher wear resistance and better sliding properties than standard UHMW.
- Metal detectable UHMW: This grade meets the food industry's need for parts that are tough, FDA-compliant, and fully lot and batch traceable.
- Glass-filled, oil-filled, and x-ray detectable UHMW: These grades are also available and offer specific properties for different applications.
UHMW plastic's versatility and durability make it an excellent choice for a wide range of applications, from small gears and bearings to huge sprockets and marine construction.
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UHMW plastic's fabrication
UHMW, or Ultra-High Molecular Weight Polyethylene, is a versatile plastic with a wide range of applications. It is an incredibly dense linear polymer with a low coefficient of friction and excellent abrasion resistance. This makes it ideal for sliding applications, such as chain guides, slide pads, and bumpers, where it protects critical moving parts and reduces maintenance. UHMW is also chemically inert and moisture-resistant, making it suitable for use in wet or chemically aggressive environments.
UHMW is a popular choice for fabrication due to its durability and ease of machining. It can be fabricated into a variety of parts and products, including custom plating tanks, wet fume scrubbers, processing skids, and pipe fabrication. UHMW is also used in the automotive and heavy equipment industries for chain guides, slide pads, and bumpers. In water and wastewater treatment, UHMW's chemical inertness and moisture resistance make it ideal for slide components and guides.
In construction and infrastructure, UHMW is used for outdoor wear components, forming boards, protective liners, and outrigger pads. It is also a durable and impact-resistant material for recreation and amusement equipment, such as snowplow blades, playground slides, and guide rails. UHMW is even used in food processing machinery parts, as some grades comply with FDA guidelines for direct food contact.
UHMW can be fabricated using various methods, including CNC routing, milling, vacuum forming, and die cutting. It is available in custom cuts or cut-to-size sheets, rods, tubes, and films. With its high abrasion and wear resistance, UHMW provides a durable and low-friction solution for countless industrial applications.
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UHMW plastic's data in Solidworks
UHMW, or Ultra High Molecular Weight Polyethylene, is a durable and versatile plastic with high abrasion and wear resistance. It is easy to fabricate and machine and is often used in industrial applications that require durability and low friction. UHMW is also chemically resistant and has good impact resistance.
Solidworks is a software that provides a database of plastics materials and their properties. It is a useful resource for those seeking to learn more about different plastics and their potential applications. Solidworks collaborates with plastics material suppliers to ensure that customers have access to the most up-to-date and accurate plastics material data. The database is regularly updated, and new materials can be downloaded and imported for use in Solidworks analyses.
To access the UHMW plastic data in Solidworks, users can navigate to the "Find" dropdown menu on the 3D CONTENTCENTRAL homepage and select "INJECTION MOLDING MATERIALS". From there, they can browse the catalog of plastics materials, which includes information such as the material supplier, material family, trade name, grade, and a short description.
Once users have found the UHMW plastic entry, they can download the material data file and add it to the Solidworks Plastics User-Defined Database. This allows users to select and utilize the imported material data in their Solidworks analyses.
Solidworks also offers support for multi-point specific heat and thermal conductivity material data, as these properties vary with temperature. This feature further enhances the accuracy of Solidworks' plastics solvers and provides valuable insights for users working with materials like UHMW, which has a high coefficient of thermal expansion.
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Frequently asked questions
UHMW stands for ultra-high molecular weight polyethylene. It is a durable, versatile, low-cost plastic with high abrasion and wear resistance.
UHMW plastic is used in industrial applications that require durability, low friction, and chemical resistance. Examples include wear strips, chain guides, packaging machinery parts, and marine dock fender pads.
The grades of UHMW plastic include virgin, reprocessed, anti-static, FDA compliant, glass-filled, oil-filled, enhanced bearing and wear, metal, and X-ray detectable.
To find UHMW plastic properties in SolidWorks, you can access the SOLIDWORKS Plastics Material Database on 3D CONTENTCENTRAL. Navigate to the "Find" dropdown menu in the upper left corner, choose "INJECTION MOLDING MATERIALS", and you will see the catalog of plastics materials.
The SOLIDWORKS Plastics Material Database is updated regularly to include new materials from plastics suppliers. When new material grades become available, suppliers directly upload the data to 3D CONTENTCENTRAL, allowing SolidWorks users to download and use the data immediately.
