| 摘要 |
A hydraulic press of the type having at least one hydraulic pump driven by a rotary shaft and a hydraulically operable ram is provided with an improvement comprising a flywheel connected to the pump shaft. According to another aspect, the ram is reciprocated between retracted and extended positions by rotating the pump shaft and the flywheel at a predetermined rotational speed so as to operate the pump(s) and deliver fluid to the hydraulically operable ram.
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