pump jack_APrecision offers a broad variety of jacks, including power-seaters and double-acting jack systems. Our 20-ton PTJ-5S jack system comes complete with jack, hydraulic pump, hose, gauge, jack grippers and gripper handle. This jack is a twin cylinder open-throat jack with a 10″ stroke and can pull up to 1/2″ strand. Smaller sizes can be pulled by simply changing the jack grippers to match the size of strand to be pulled.