SMC NCRB50-90 Actuator

SMC NCRB50-90 is a vane-type rotary pneumatic actuator in the NCRB family, delivering a fixed 90° rotation from a 50 mm bore. It converts compressed air into compact rotary motion for small indexing and positioning tasks in automation equipment, such as fixtures or transfer mechanisms that require a precise 90-degree sweep. The NCRB50-90 is designed for an air supply up to 1.0 MPa (approximately 145 psi) and weighs about 2.01 lb (0.91 kg). This model is documented as discontinued by the manufacturer, which can affect ongoing availability and aftermarket support. As a compact rotary actuator, it follows the mounting conventions used by other NCRB variants, enabling straightforward retrofits in systems that require 90-degree rotational actuation with a 50 mm bore.