Profile: Q T R C O, Inc. fabricates turn racks & gear actuators for control of valves, dampers and machinery. Our turn rack & gear actuator includes offset cylinders, roller type rack supports, rack guide rails, pressure balanced shafts, massive shaft bushings and captured springs. We offer linear spring return actuators, which operate with pressures from 40 to 120 psig. Our omega brackets feature a two-piece construction to save time and frustration when mounting an actuator to a valve.