Isringhausen's ISRI 6500/575 seat for construction machines features a pneumatic suspension system optimized for vibration isolation according to ISO 7096 Class 3 and 4. Its structure meets all current DIN and EN safety requirements for construction machines. A variety of adjustments includes those for standard height and rake (and optional weight) to ensure a proper driving position with minimal fatigue. For vehicles without an air-pressure supply, Isringhausen offers the same product with an integrated air compressor as model ISRI 6500 KM/575. That model has a horizontal adjustment of 180 mm (7 in.) and is continuously adjustable for weights up to 130 kg (285 lb). Stroke is 100 mm (about 4 in.), with height and rake being adjustable up to 65 mm (2.5 in.). Two seat-belt fixing points correspond to the latest standards. Options include adjustable and tilting armrests, 12/24-V heating elements in the cushion and back, pneumatic lumbar, automatic safety belt, head restraint, and seat contact switch.