Reverse Tonnage

High, unabated reverse tonnage and the shock and vibration that accompany it can destroy dies and presses, crumble floors, crack foundations, shake building structures or even cause health problems for operators and other personnel working in the area.

Have you ever walked into a metal stamping facility and heard an operation that sounded like a shotgun blast every time the press passed through the bottom of its stroke? If so, you were witnessing the destruction of a press caused by reverse tonnage. Reverse tonnage, often referred to as "snap through", is the undesirable result of cutting operations. When a punch breaks through the metal during a cutting or perforating operation, a negative force results.

High, unabated reverse tonnage and the shock and vibration that accompany it can destroy dies and presses, crumble floors, crack foundations, shake building structures or even cause health problems for operators and other personnel working in the area.

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