FRONT TO BACK DIMENSION INCLUDES TWO 8” REMOVABLE EXTENSIONS ON CROWN AND SLIDE. NOMINAL PLATEN SIZE WITHOUT EXTENSIONS IS 30 ½” L to R X 24 ½” F to B. DISTANCE BETWEEN POSTS: 31 ¾” L to R X 10 ½” F to B. POST DIAMETER 3 ½”. MAIN RAM: 12” DIAMETER, SINGLE ACTING, RATED AT 2700 PSI, 1 ½” NPT PORTS, APPROX 36” STROKE. ADJUSTABLE DAYLIGHT FROM 45” TO 71”. FULLY GUIDED SLIDE WITH 5” BUSHINGS. TWO DOUBLE ACTING BREAK-AWAY CYLINDERS: 3 ½” BORE, 1 ¼” ROD, APPROX 11” STROKE, ½” NPT PORTS. OPERATOR HEIGHT 60 ½”. OVERALL DIMENSIONS: 48” L to R X 48” F to B X 145” TALL. APPROX WEIGHT: 15,000 LBS. SOME DRAWINGS. (ITEM #286)