The type A25 air starter is generally used for starting internal combustion engines of an approximate range of ratings of 220 to 1100kW (300 to 1500HP), although the suitability depends, in practice, on the engine capacity, number of cylinders and the ratio of the driving pinion to the flywheel ring gear.

The A25 is usually supplied with an external oil lubricator, pinion and flange.

They are successfully used in: emergency generating sets, motor pumps, auxiliary ship engines, forklift or other industrial vehicles.