The latest HTR Series hydraulic rack and pinion rotary actuators from Parker Hannifin are suitable for use in production systems including those used in the mining, off-shore, power generation, automotive, commercial marine and metals processing sectors. HTR actuators convert fluid power into rotary motion by using the piston in a conventional tie rod cylinder to move an output shaft via a through-hardened, chrome-alloy steel rack and pinion. The entire unit is completely enclosed, avoiding the need for external protection and preventing contamination of moving surfaces. HTR rotary actuators are rated for working pressures up to 210bar, and are available in a range of sizes with output torque ratings of 100 to 68,000Nm. Shaft rotations of 90deg, l80deg and 360deg are available as standard while up to five full rotations or more are possible. Options include a choice of port positions, cushioning for progressive deceleration of piston speeds, different seal materials, feedback devices and position sensors.
