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Pneumatic rotary actuators often require
special lubrication due to their specific operating conditions and
requirements.
Most pneumatic rotary actuators use air as
the working medium, and the internal moving parts, such as pistons, racks,
pinions, and shafts, are prone to wear and tear due to friction. Special
lubricants are designed to reduce this friction, ensuring smooth operation and
prolonging the service life of the actuator. These lubricants usually have good
anti - wear and anti - corrosion properties to protect the components from
damage caused by air - borne contaminants and moisture.
Moreover, the lubricants for pneumatic
rotary actuators need to be compatible with the materials of the actuator,
including seals and O - rings, to prevent any chemical reactions that could
lead to leakage or component failure. They also should be able to withstand the
pressure and temperature variations within the actuator's operating range.
In addition, some special - purpose
pneumatic rotary actuators, such as those used in the food and beverage
industry or in clean - room environments, require lubricants that meet specific
hygiene and cleanliness standards. These lubricants are often food - grade or
free from contaminants that could affect the product quality or the cleanliness
of the environment.
In summary, using the appropriate special
lubrication is crucial for the reliable and efficient operation of pneumatic
rotary actuators, helping to maintain their performance and reduce the need for
frequent repairs and replacements.
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