Piercing Mill Gearbox

The piercing mill is used to pierce out and roll the mother tube out of original billet. The single input, double output, two-stage gearbox drives this mill. This is a three metre tall and robust gearbox with a base of 2.8/1.4 meters and weighing around 18 tons.Technical specifications :Input power : 1250 kW @ 750 rpm, A.C.motor Reduction ratio : 5.6875:1 Axial thrust : 1,80,000 N on each output shaft The gears are made from high tensile carburizing alloy steel, 17 CrNiMo6 as per DIN 17210, case hardened to 60