Factors to consider when applying actuators


Service


Light Load - Heavy Load -
consider weight of load and distance from actuator shaft.

Bearing Loads -
heavy radial loads without external bearing support.

Shock Loads -
consider dropped loads or mechanical failure of associated equipment. Also start - stop - jog and other non mechanical contact, hydraulic shock loads.

Rate of Oscillation -
time to move load thru required angle. Also consider small angle - high rate applications.

Cycle Frequency -
how often actuator is cycled. One cycle per minute, one cycle per week, etc.

External Stops -
external stops should be used to limit angular travel as the actuator abutments (shoes) are not designed as mechanical stops.

Operating Press -
should not exceed rated pressure of actuator.


Environmental


Temperature -
Hot example - foundry applications.
Cold example - cryogenic equip, outdoor equip.

Dirt -
Examples, foundries, construction equipment

Caustic -
Examples, valve operators, mixers plating tanks

Humidity -
marine applications, outdoor

Vibration -
machine tools, test equipment

Radiation -
nuclear energy plants

Electricity -
welding equipment

Clean -
food processing, medical equipment


Maintenance


Lubrication -
consult factory

Filter Maintenance -
especially foundry and construction type applications

Shaft Alignment -
close tolerance alignment or flexible couplings

Proper Mounting -
rigid support, tight bolts, good coupling fits

Long Term Storage -
fill with compatible oil

External Stops -
tightness and proper location

Fluid Media Conditioning -
water separators, lubricators, oil coolers

Fittings and Hoses -
tightness and general condition

Protective Shielding -
for high temperature or excessively dirty applications