SMC CDLA2L40-690-P-G5BAL MSRP: Now: $601.05 Was: The Cla2 Cylinder Acts As An Air-Operated Brake With Spring-Backup. When External Position Feedback Sends A Signal To An Air Valve, The Brake Is Actuated And Fast-Acting Shoes Grab The Actuator Shaft... CDLA2L40-690-P-G5BAL