BECK electric actuators from Harold Beck & Sons quickly, accurately and consistently track the demand signal, allowing users to maximize a control system’s capabilities. They have a continuous-duty no-burn-out motor, and heaters and torque switches are not required for the actuator to operate at full efficiency. Wide-face spur gearing essentially eliminates wear-induced backlash and positioning inaccuracies. Since the gearing is permanently lubricated, the actuators require no scheduled maintenance. 215/968-4600; www.haroldbeck.com.