The Alva Allen BT5-EGB Mechanical OBI Punch Press is a 5-ton mechanical OBI (one-blow-in) stamping press designed for compact, low- to mid-volume punching tasks. It features a 1-1/4" ram stroke and a 4" throat, with a bed area of about 6-1/2" by 10" and a shut height around 7", suitable for small parts on a bench or stand. Electrical configurations vary by unit, but common spec sets show a single-phase supply around 110–115 V and a motor in the 1/3 to 1/2 HP range, typically with a mechanical clutch and basic on/off controls. Weight is typically in the 460–500 lb range, reflecting its compact, bench-friendly footprint and manual/semi-automatic operation options.
