Economical ETA Series pneumatic linear actuators contain an internal linear-resistive transducer.
They are reportedly ideal for applications where traditional magnetic position sensing is not an option. The cylinders are also suited for applications requiring variable stroke and speed, or continuous position sensing. The units have 303-stainless- steel piston rods, 304-stainless tubes, and aluminum heads and caps. Five bore sizes range from 1.06 to 3 in., standard lengths from 6 to 24 in., and maximum pressure rating is 250 psi.
Enfield Technologies, 41 Monroe Turnpike, Trumbull, CT 06611, (800) 504-3334, enfieldtech.com