It is often desirable to slow down a solenoid to avoid a crash or high impact on closure. The Airpot tunes the solenoid to obtain the fastest motion possible without noisy impact or damage to components.
In electronics assembly equipment (as shown below) a pull damping Airpot controls a solenoid which positions the grippers. The Airpot significantly reduces gripper impact.
In automatic diagnostic equipment it controls the travel of solenoid actuated dispensers and positioners as samples move from one station to another.
In silicon wafer transport mechanisms it prevents bounce and overshoot as solenoids lift wafers into position.