| | | Step 1: Fill out the Application Worksheet. Step 2: In most applications, a constant actuation force over the stroke is not required and sizing should begin with Single Convolute Bellows Type Air Springs. However, if a constant actuation force over the stroke is required, consider only the Sleeve and Rolling Lobe Type Air Springs. Step 3: Refer to the Selection Chart under Actuation Specifications. In the Force lbs. @ 100 psi @ A Stroke Of: Data Table choose the column that is equal to or exceeds the Stroke Required (S) (i.e., if a stroke of 2.5 in. is required, refer to the 3.0 in. column). Identify the first Air Spring model that will generate a force equal to or greater than the Corrected Force (FC) required. This is the Enidine Air Spring that will best serve your application. Select a model that includes an internal bumper if one is needed in the application. Availability of internal bumpers can be found under the Features table for each Air Spring. Step 4: Verify the Envelope Dimensions of the selected Enidine Air Spring to ensure that the Air Spring will fit the application. Allow a 2 in. clearance on the diameter to prevent abrasion of the flex member. Select the Model Number that provides the Features and Mounting Dimensions required for the application. | | A 3,200 lb. conveyor manufacturer carrying an 1,200 lb. package needs to be lifted 1.8 in. to transfer the package to another conveyor. There will be four Actuators utilized and the industrial warehouse has air lines with 50 psi. A constant actuation force is not required. Ambient temperature is 68°F. There is a 12 in. square space to house each Air Spring. Compression and extension stops are provided. Any Air Fitting Port and End Retainer Style would be acceptable. Step 1: From the completed Application Worksheet, we know: • Corrected force per actuator is 2,200 lbs. • Stroke required is 1.8 inches • An internal bumper is not required • A constant actuation force is not required • Working temperature is 68°F Step 2: A constant force is not needed. Therefore, all Air Spring types are considered, beginning with Single Convolute Bellows. Step 3: In the 2.0 in. column under the Force lbs. @ 100psi @ A Stroke Of: Data Table, identify an Air Spring that can generate 2,200 lbs. of force. No internal bumper is required. Model YI-1B8-550 is selected. Step 4: The maximum diameter of a YI-1B8-550 is 8.7 in. Therefore, we need a 10.7 in. diameter space to house the Air Spring. A 12 in. square space will easily house the Air Spring. Any Air Fitting Port and End Retainer Style would be acceptable. Model YI-1B8-550 is selected. | | |