Mechanical press 2DM-100

stampinghigh-speed blankingautomatic

Blanking presses are machines intended for high speed production, usually stamping flat blanks or parts with small folds, and thin or average material thickness. Balconi was the first Italian manufacturer of this type of presses, has acquired a long experience and has developed innovative technological solutions. Balconi is still today one of the few European press manufacturers capable to offer and make high quality, technical and cost-effective solutions for high speed blanking. Especially when using high tensile steel, during blanking a “breakthrough” phenomenon occurs generated by the instantaneous release of the elastic energy stored in the press frame. In this situation the various parts of the press, such as the frame, the crankshaft, the connecting rods are subject to a high load that generates an increase of vibrations, tool wearing and damages to the machine if it is not properly designed, dimensioned, welded and manufactured. Motors, electric and pneumatic components on the Balconi blanking presses are installed on shock absorbers to prevent possible untimely break-downs due to the high vibrations. In our blanking presses, clearances are strictly checked during all the manufacturing phases. In fact excessive clearances may increase the effects of vibrations and of the “breakthrough” phenomenon. The range of Balconi blanking presses is very wide and it includes machines up to 8.000 kN force HIGH SPEED BLANKING PRESSES FOR MOTOR LAMINATIONS High speed blanking of motor laminations requires machines with special stiff frames, to stand the high vibration effects generated during production.