Used secondhand 4000t open-die forging press with 4 columns and underfloor drive (high horizontal stiffness). Fully automatic with SIEMENS S7 controller (approx. 7 years old). Accessories: - Sliding table with 3 stations - 2 swivel arms - Block centering device - Manipulator for automatic slug removal - Modern water-hydraulic drive for the main function (press drive and table displacement) - Secondary functions oil-hydraulic. There are many spare and wear parts available (cylinders, part-turn actuators, valves, retraction plungers, etc.). The press was regularly maintained and modernized. The main control was completely renewed about 10 years ago, the electrical system about 7 years ago. The max. stroke is about 2400mm. Extensive documentation with drawings and descriptions is available. The press is still connected and can be demonstrated in action.
Parts that can be made on the press: • General forgings • Turbine disks made of high-temperature alloys as well as blank flanges up to 2m in diameter (additional turntable required) • Ready-forged railway wheels up to 650mm diameter • Tram wheels up to 650mm diameter • Railway wheel blanks up to 1300mm diameter
Since the company has a central water pressure supply, we can only get one pump. Further pumps must be bought by the customer. One pump has a connected load of 200kW. With three equal pumps it would be 600kW. The press can of course be operated with one pump but then only with a speed of 33mm/s. The whole system is extremely modern and runs with proportional valves and in automatic mode. The pumps deliver the water in storage tanks. The press is served from the storage bottles and the pumps have to pump the water into the bottles. If the customer wants to buy larger pumps, he can certainly achieve a faster pressing speed but in forging is usually worked with 50 to 60mm/s, which is usually sufficient for most forgings. The 100mm/s are very comfortable.
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