Emili Sunyé is an Applications Engineer at EPIDOR and has more than 15 years of experience as a sealing expert. Specialized in failure analysis in industrial applications, he brings his technical knowledge to optimize the performance and reliability of the systems.
In the engineering design phase of an installation, the largest number of scenarios in which the installation will have to operate are usually considered and the possible problems that may arise in each of them are analyzed.
The sealing of electric and hydraulic motors is not guaranteed at 100% when conventional seals are used. It is an attractive solution in terms of cost and performance, but these types of seals have limitations in terms of the maximum speed and pressure they can withstand and sometimes make it necessary to change the seal system.
When the customer is faced with the problem of sealing between components that move against each other at will; the easiest, safest and most effective solution is to use an inflatable gasket or pneumatic gasket.
Characteristics of inflatable gaskets
Inflatable seals expand with the injection of compressed air and regain their shape when the inflatable seal valve releases the compressed air. Operation is simple.
Inflatable seals meet temperature ranges from -65°C to +315°C, depending on the elastomer formulation. The materials most in demand are...
Hydraulic systems often operate under severe and even extreme conditions. Sealing materials must ensure reliable operation regardless of the conditions in which they operate, including climate aspects such as relative humidity in a tropical environment with regard to the hydrolysis of polyurethane seals and gaskets.
Even seals that meet these requirements, it is common for them to wear out due to sudden changes in temperature or inadequate maintenance. A particular case is the rental of heavy machinery, where...
Our in-house manufactured rotary joints for hydraulics, the DR115 and DR116, are designed to work in rotary or oscillating motion. They consist of a toroidal section tension ring and a Teflon grooved sliding ring, with various possible loads or polyurethane.
The star applications, where we can mount this type of rotary joint for hydraulics, are hydraulic distributors and machine tools, achieving a high performance and a low friction coefficient due to the different possible materials.
Types...
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