Model number BSTA30 Year of manufacure 1979 SPECIFICATIONS: Capacity 30 tons Adjustable stroke .0629" to 1.57" Shut height, bolster plate to slide stroke down adjustment up 7-1/2" Speed 100 to 600 spm Bolster bed size 21.5" x 18.375" Bolster plate thickness 2.375" Electrics 220/3/60 Weight, approx. 6,500 lbs EQUIPPED WITH: Air clutch, Feeder, Control panel, Sound enclosure