Standard Dampers

The tube is filled with a mixture of oil and air, as the shaft is compressed the volume is taken up by compressing the air. This design works well in vertical or near vertical applications where the oil and air stay separated due to gravity. If these dampers are used horizontally the air and oil mix causing cavitation when the shaft is moved (thus Cavitating damper) resulting in irregular dampening forces throughout the travel. This would show up as a jerky movement of the shaft as it’s moved in and out.