Royal TH-Series hydraulic cylinders are Linear Positioner cylinders providing a feedback electronic signal which offers complete control of cylinder position and speed. The design is based on our proven H-Series NFPA cylinders. Royal offers two designs for mounting a position sensor; the common external threaded housing design - T3H, and the internal plug design with remote electronics housing mounted directly to the cylinder - T4H. Non-contact position sensing transducers from manufacturers such as MTS Temposonic or Balluff are typically used. Customers supply and install the sensor for T3H or send for factory installation for T4H (recommended). Sixteen mounting styles are available in standard tie-rod construction. Available bore sizes are from 1 1/2" to 6". For other sizes or custom cylinders please contact the factory.