Cat® Seals

Metal Face Seals that perform. Every day. Everywhere.

When you specify metal face seals for your equipment, you look for quality and reliability - for sealing solutions that work dependably over the long term.  And with good reason: seals are deeply integrated into the equipment or machinery system which means failure is not an option.

To ensure maximum uptime for your customers and equipment, metal face seals must perform as promised. Cat Duo-Cone™ and Heavy Duty Dual Face (HDDF) seals are designed to match the lifespan of the systems they protect.

Cat metal face seals perform everyday, around the world, in industries such as agriculture, construction, forestry, industrial, material handling, military, mining, petroleum, tunneling and waste.  Cat seals protect systems such as axles, drill heads, final drives, idlers, mobile track systems, mining equipment, pumps, rollers, tunnel boring cutters and undercarriages.  All kinds of applications in all kinds of conditions. And Cat seals legacy of innovation, improvement and protection spans decades.

Cat seals are sometimes referred to as Maintenance Free Seals, Face to Face Seals, Toric Seals, Mechanical Face Seals, Heavy Duty Seals, Lifetime Seals, Face Seals, Floating Seals, Duo Seals, DO Seals, DF Seals...

Designed for tough applications

Metal Face Seals

When you choose Cat Duo-Cone and Heavy Duty Dual Face (HDDF) seals, you choose a metal face seal supplier with equipment manufacturing experience—a supplier with first-hand experience of seals in a wide variety of applications.

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Metal Face Seals (Duo Cone Seals & Heavy Duty Seals)

A complete line of Cat seal sizes and designs makes your engineering and procurement work easier. Cat seals range from 25 mm to 940 mm (1 inch to 37 inches) plus we design and manufacture new metal face seals to address customers' needs.

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Engineering support - Problem Solver

Maintenance Free Seals

Experienced engineers are available to evaluate your sealing requirements, work with your engineering personnel and recommend the sealing solution to best address your application needs.

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Metal Face Seal

Cat Duo-Cone and Heavy Duty Dual Face seals come in a variety of materials to satisfy your application including our exclusive C6 seal ring material with superior corrosion resistance.

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Cat seals information, installation tool

Mechanical Face Seals

You've come to the right place for information about Cat metal face seals from design through installation.

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Choosing the right seal for the job starts with your equipment or machinery application. This information is critical to understand the demands of the system to be protected so the correct Cat seal is applied.

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