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Airpot Corporation is the world's leading manufacturer of ultra low friction, super-responsive pneumatic piston and cylinder motion dampers and actuators. Their unique seal-less construction and combination of materials allow unsurpassed longevity, high cycle rates without lubricants, smooth operation at extreme temperatures, and instrument quality performance for low to medium force and energy levels.
Airpot Corp. manufactures two basic families of pneumatic actuators (shown below). Both employ our unique combination of a Pyrex® glass cylinder and graphite piston and have similiar performance properties with respect to friction, cleanliness, and temperature range.
semiconductor & IC processing equipment
web/wire/filament tension controls
test & measurement instruments
automated medical analyzers
dispensing & vending machines
high capacity mail & cash handling equipment
customized uses for our pistons & cylinders
why use them?
APPLY A PRECISE FORCE
Provide a precise, repeatable motive or counterbalancing force
Apply a gentle or precise holding or squeezing force (as low as a few grams)
ACTUATION WITH UNIFORM MOTION
Move something slowly and smoothly-even over distances less than 0.1 inch
Cycle at very high speeds - up to 100 cps
Force is the primary consideration for dashpot configurations and all applications involving vibration, time delay, and velocity control.
Limits based on damping direction. Force always relates to the net load which is pushing or pulling on the dashpot. Typically, force will dictate the unit's size when the Airpot is used in the dashpot configuration.
At rest, the dashpot is a passive device and has no force output. In motion, the dashpot offers a resisting force which rises to equal the force of the input load, achieving a zero net force. This results in zero acceleration and constant velocity.
Some combination of any of these properties for a mechanism that you have an idea for:
Friction less than 1 gm
Thermal stability over an extreme temperature range
Very low mass
Cycle life that can range into the billions
No deterioration or change in performance due to age or non-use
Ability to respond to exceedingly low forces and pressures
Ability to run at ultra-high speeds
Ability to move linearly and rotationally simultaneously
Airpot components have been used as bearings, vacuum pickups, rate of climb indicators, earthquake sensors, spool valves, flow meters, pressure sensors, and many other uses that fall outside the normal scope of our Airpot Dashpots, Acutactors, or Airpel Anti-Stiction Air Cylinders.