Schrader Bellows B181-1111-100 Hydro Check Cylinder

Schrader Bellows B181-1111-100 Hydro Check Cylinder is a standard-duty HydroCheck pneumatic actuator from Schrader Bellows (Parker Schrader Bellows). Identified by model B181-1111-100, this compact cylinder is listed with a 1-3/8 in bore and a 100 mm stroke, making it suitable for tight installations where precise linear motion is needed. The unit is described on seller listings as used and untested, with wear consistent with prior service. Classified as a pneumatic cylinder in Schrader Bellows’ HydroCheck family, it provides the hydrocheck-style architecture for controlled actuation in pneumatic circuits. Applications commonly align with automation and testing rigs that require a reliable, space-efficient actuator with backflow control characteristics typical of HydroCheck designs. The B181-1111-100 designation places it within Schrader Bellows’ legacy line of compact hydraulic/pneumatic actuators, manufactured under the Parker Schrader Bellows umbrella.