National No. 7 ½ Max. 1800 Ton

National Heavy Duty Upset Forging Machine
Mdl No. 7 ½
New 1941

SPECIFICATIONS:
Rated Bar Diameter………………………………………………………………………… 7 ½”
Upsetting Force………………………………………………………………………. 1800 Ton
Gripping Force………………………………………………………………………….. 900 Ton
Stroke……………………………………………………………………………………………… 22”
Strokes Per Minute (approximate)………………………………………………….. 25
Stock Gather…………………………………………………………………………………… 11 ½”
Hold………………………………………………………………………………………………… 6 ¼”
Grip Opening………………………………………………………………………………….. 9-7/16”
Length x Height of Die Space………………………………………………………… 28” x 36”
Motor………………………………………………………………………………………….150 HP
Floor Space L-R, F-B………………………………………………………………19’5” x 18’5”
Approximate Weight……………………………………………………………… 350,000 lbs