Haldex is both an industry pioneer and market leader in air brake actuators. Many of the designs and features you have come to expect are Haldex innovations. Haldex offers a complete family of actuators designed and built to the same high standards. The GoldSeal family includes 13 different sizes ranging from the popular 3030 2.5 stroke to the 1624 2.25 stroke and 3636 3.0 stroke. The only truly sealed double diaphragm spring brake on the Market. Ice melts, rain dries, but corrosion never takes a day off. In time, water, de-icers, oils and other elements eat away at your actuators. LifeSeal+ ® 2.5 and 3.0 stroke models are engineered smart, built strong, and road-tested tough for dependable, durable performance that outlasts ordinary spring brakes.