M8 and M12 cable assemblies can be utilized in a wide variety of applications and oftentimes in harsh and rugged environments. One factor that allows M8 and M12 cable assemblies from MJM Industries to withstand environmentally harsh conditions is the proper selection of the outer cable jacket material. Cable jackets protect the internal components from abrasions, heat damage, moisture, flame, chemicals, and other harsh environmental conditions. It is crucial to have the correct jacket type for each application based on the condition of use and environmental factors.
MJM Industries offers both polyvinyl chloride (PVC) and polyurethane (PUR) cable jacket types for our M8 and M12 product line. We are frequently asked which cable jacket type is right for a particular application. The answer, of course, depends on several factors, however, understanding the basic differences between PVC and PUR cable jacket types can get you started in the right direction.
Polyvinyl Chloride or PVC is known for its versatility and is a popular material because of its durable physical properties. PVC can resist oils, acids, abrasions, sunlight, heat, moisture, and even salt water. PVC is not halogen-free and is less expensive to produce, so it tends to be the more economical choice whenever conditions merit. Due to its flame resistance and chemical structure, it is often used in general automation, lighting, packaging, food and beverage, and general control cables.
Polyurethane or PUR is very elastic and has high flex properties, making it ideal for applications where continuous cable flexing is required. Cable jackets made with PUR also have excellent resistance to extreme temperatures, chemicals, oil, sunlight, oxidation, and environmental strains. This jacket type is also a halogen-free thermoplastic elastomer and is therefore self-extinguishing and will not emit toxic fumes if exposed to fire. Due to its flexibility and fire and temperature resistance, PUR cables are often used in outdoor, high-movement, medical, robotics, and other demanding applications.
MJM Industries overmolds the connector in the same material as the cable jacket to obtain the best mechanical bond between the components, helping to ensure a minimum IP67 rating.
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PUR
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- Comparing PVC and PUR, PVC is the more affordable option.
- PVC can become brittle in extremely low temperatures, making PUR the better option for a cold environment
- PVC and PUR are both abrasion-resistant
- Some PVC products aren’t oil-resistant
- PUR products may have limited flexibility
MJM Industries is a global leader in the design and manufacture of custom over-molded cable assemblies, wire, and cable assemblies, as well as flat flex and co-axial cable assemblies. Some of our value-added services include laser wire stripping for holding ultra-tight tolerances and 3-D modeling for all markets. From concept to finished product, the MJM Industries staff works to ensure that all parts are manufactured to exacting standards.
For more information, contact MJM Industries at 440-350-1230 or visit our website at www.mjmindustries.com