A standard feature of DYNAMIC BALANCING DEVICE is employed to counterbalance eccentric thrust generated from crankshaft rotation and slide movement, This may ensure better precision lamination and longer service life of high quality tools can therefore be secured because of substantial reduction of press frame vibration. A ground high quality alloy steel crankshaft has two wide con-rods closely supported by four main frame bronze bearings. The two con-rods allow the use of long tools with different operating stations and allow for off-center loading.