The Karl Tränklein USM 900 is a used perforator — sometimes referred to as a punching machine or die-cutting press — designed to cut clean, precise holes and shapes through a variety of sheet materials including paper, cardboard, and plastic. Karl Tränklein is a German manufacturer known for specialised punching and perforating equipment used in packaging, print finishing, and light industrial processing applications.
The machine is built around three principal structural components: a base frame, a tool slide, and a support table. This construction provides a stable, repeatable punching action across the full working area. The table measures 900 × 480 mm, offering a generous working surface suited to sheet and board formats typical in packaging and print production. Stroke actuation is handled via an electric foot switch, leaving both hands free to position material, and the stroke height is adjustable to accommodate different die shapes and material thicknesses. The maximum stroke travel is 100 mm, and the machine accepts material stacks up to 80 mm high, which is particularly useful when punching multiple sheets in a single pass.
One of the machine's practical strengths is its tool system: it can be fitted with numerous interchangeable punching tools, allowing a single unit to handle a wide variety of punching tasks without lengthy changeover times. Waste produced during the punching cycle is channelled away from the working area through two side chutes and can be collected in containers placed beneath them, keeping the workspace clear.
Power is supplied by a gear brake motor rated at 1.5 kW, running on 400 V, three-phase, 50 Hz — a standard industrial supply throughout continental Europe. The machine has a net weight of 350 kg and requires a floor footprint of approximately 100 × 95 cm, with an overall height of 140 cm. This machine is located in Germany.
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