Metal Seals are used in extreme service applications where soft rubber lip seals fail. They perform for thousands of maintenance-free hours as they permanently seal in lubricating oil and keep out damaging abrasives such as dirt and sand. Caterpillar offers an expanded line of Duo-Cone and DF Seals ranging in size from 3 to 37 inches in diameter.
Typical applications are mining and construction equipment as well as ag machinery.
Both seal types consist of two metal sealing rings, precisely machined to close tolerances, which are held in consistent contact to one another by two elastomeric load rings. Each design has certain advantages for specific applications. Our representatives can help you find the best possible design for your application. We help you avoid costly machine teardowns encountered in the event of unexpected failures. Our extensive tests can prove your new design specifications before production.