https://www.mrosupply.com/linear-motion/96709233_pa11-58b65-04ebhsx_thomson-linear/
Thomson Linear PA11-58B65-04EBHSX PPA Precision Linear Actuator 115 Vac 1500 lbf 4 in Stroke...
Thomson Linear PA11-58B65-04EBHSX PPA Precision Linear Actuator, 115 Vac, 1500 lbf, 4 in stroke, encoder feedback, 0.17 in/s travel rate.