two-cylinder four-column hydraulic press - HARSLE
2021-8-4u2002·u2002The two hydraulic cylinders of the two-cylinder four-column hydraulic press shall respectively complete the automatic working cycles of rapid feed and rapid retreat. The circuit is an oil supply system with double pumps. One pump is a low-pressure high-flow pump, which delivers low-pressure oil for two-cylinder fast forward or fast rewind.
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