KOSO TOR K系列是一种中等输出力、高性能的气动执行机构，分为双动作和单动作两种，与角行程调节阀组合使用，可用于调节和开关的场合。

该系列也可用于其它回转（90°）的场合。

KOSO TORK double acting and spring return pneumatic cylinder actuators are powerful, high-performance actuators that provide positive modulation or on-off operation for rotary stem motion type control valves and many other quarter-turn ( 90 ) rotating mechanims.