213 subject to alterations Nitrogen Die Cylinder Top Tool Ejector Pad/Stripper Piercing Punch Draw Ring Workpiece Pressure Ring Base Plate 10 mm stroke (die cylinder) Nitrogen Die Cylinder Installation Options: a) floating installation b) fixed with screws Drawing- and piercing tool For a 100-tonne SMG hydraulic drawing press with one gas spring. The gas spring used has an initial gas pressure of 130 bar and a corresponding initial spring force of 26 kN. The nominal stroke is 80 mm, while the working stroke 76 mm. The operating stroke rate is 14 rpm. Bottom ejector in progression compound tool Two gas springs with an initial 7.5 kN spring force, a 25 mm nominal stroke and a 10 mm working stroke are used. The actual working stroke is 10 mm. The tool is run at a speed of 150 SPM, with a ram stroke of 48 mm. Application examples
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