Cubic Ball Screw Jack - CAD Configurator
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For power rating of selected screw jack check the PDF Datasheet of model, after you have completed the 4 steps.

Consideration should be given to the following;

Power rating
Power rating governs the operating life time of the screw jack.
Operating life is governed by numbers of cycles, frequency of cycles and length of travel.
Power is a function of input torque and input speed.

Column stability
Column stability or buckling strength, should be considered when the lifting screw is loaded in compression and the column appears slender.
The end fixing arrangement affects column stability.

Critical speed
Critical speed should be considered where the lifting screw is slender.
Long travel screws can be influenced by the rotation speed setting up harmful vibrations.
The end fixing arrangement affects the critical speed.

The nominal travel is determined by the application

Travel speed is a function of the incremental distance travelled by one rotation of the input worm shaft and speed of rotation.

Having selected a travel speed be aware of the screw jack power rating, check PDF Datasheet for details, after completing step 4.

When the jack is installed according to the standard dimensions shown in the PDF datasheet, the travel is the distance that the load moves.
When the jack is installed with a non-standard closed height/and or bellows, the working travel should include an allowance for these features.
The PDF datasheet gives details of these dimensions.