What Do I Need To Consider When Order A Rubber Bellows To Protect The Jack Lifting Screw?

When a rubber bellows is ordered for a jack, the closed height dimensions may change. When ordering a rubber bellows for an inverted jack, need to consider the closed height of the rubber bellows and structure thickness. Usually, under fully retracted, the rubber bellows closed height =0.13* travelling strokes. For example, upright mounting, request 1000mm stroke, plus rubber bellows closed height 0.13*1000=130mm. So need to order at least 1130 mm stroke with rubber bellows.