203-846-2021
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35 Lois Street, Norwalk, CT 06851
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  • Home
  • Company
    • About
    • Quality
  • Product Lines
    • Low Friction Air Cylinders
    • Dashpots and Shock Absorbers
    • Piston Cylinder Sets
    • Airpel – FFR (Filter-Filter Regulator)
    • GramForce® Grippers
    • Position Sensors
  • Applications
    • Damp Motion
    • Actuate with Air or Vacuum
    • Piston Position Sensing
    • Apply a Precision Force
    • Pump or Pulse Air
    • Sense / Indicate / Relieve Pressure
    • Make Your Own Low Friction Device
    • Filter & Regulate Air Supply
    • Ventilators
  • Support
    • Terms Of Sale
    • Engineering Guides
    • Videos
    • FAQs
    • Decipher Part Number
  • Contact
    • Airpot
    • Distributors
Home / Applications / Damp Motion / Velocity Control of Falling Mass
  • Low Friction Air Cylinders
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VELOCITY CONTROL OF FALLING MASS

Machine designs commonly require damping a falling mass to prevent damage, noise, or shock, or to impart a desired time delay to the action. Airpot dashpots are a simple mechanical means of obtaining repeatable controlled velocity and easy fine tuning ability.

Application Examples

In vending machines (as shown below) a pull damping Airpot slows the descent of the protective access door after the coffee cup has been removed. This prevents potential injury to the user and eliminates repeated impact that could damage the door. The low friction and low mass of the Airpot’s moving parts allow the door to be raised by hand easily and then freely descend by gravity when released.

In precision testing equipment the Airpot is used to slow the descent of test probes and sensors, preventing damage to the probes and the test sample.

In assembly fixtures the Airpot controls the lowering of sensitive subassemblies as their carriers settle on hard mating surfaces.

velocity control falling mass

QUICK SELECTOR
To View the Best Model’s Data Sheet: In the chart below CHOOSE a Damping Direction and CLICK on a Model that offers a force equal to or greater than the mass or Force in your application.

FORCE CAPACITY GUIDELINES**
Model 2K56 2K95 2K160 2K240 2K325 2K444
Bore (in) 0.22 0.366 0.627 0.945 1.281 1.75
Pull Damping Direction (lbf)
(Starting from fully retracted position)
0.5 1.4 4 9 17 30
Push Damping Direction (lbf)
(Starting from fully extended position)
0.35 1 3 7 13 24
**Note: Best performance for each model will be achieved at or below input forces shown above. Maximum force capability is higher and is based on % of available volume displaced.
TIME DELAY CAPABILITY AT FORCES SHOWN ABOVE
Pull Damping Direction
(seconds/inch) of travel
(Starting from fully retracted position)
1.0 1.4 1.3 3.3 2.4 1.3
Push Damping Direction
(seconds/inch) of travel
(Starting from fully extended position)
1.4 2.0 1.7 4.3 3.1 1.7
Damping Coefficient Range
Force/Velocity: lb/(in/sec) 0-0.5 0-2 0-5 0-30 0-40 0-40

MORE DETAIL

Click here to learn more about Damping Direction.
Click here to learn more about Force.
Click here to learn more about damping coefficient.
Click here to see specifications summary for all models.

Airpot offers four product families in our line of customizable pneumatic actuator.
GET FREE SAMPLE
Get a free sample

CONTACT

sales@airpot.com
203-846-2021
Airpot Corporation 35 Lois Street, Norwalk, CT 06851, US

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Airpot®, Airpel®, Airpel Plus®, Airpel-AB®, and Gramforce® are registered trademarks of Airpot Corp.

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