Drive power of hydraulic presses
29.4
The ram movement is generally generated by a double-acting hydraulic cylinder. The drive power P results from the following relationship:126786
Eqn. 1
Eqn. 2
| Performance | P | = | kW |
| Flow rate pump | QPth | = | l/min | |||
| System pressure | p | = | bar | |||
| Overall efficiency | ηges | = |
Calc 1
Total efficiency η tot of an internal gear pump: 0.6 … 0.9
12
Tschätsch, H. / Praxis der Umformtechnik / Vieweg / Wiesbaden / 2003 / 7. Auflage
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Wagener, H.-W., Pahl, K.-J. / Mechanische und hydraulische Pressen / VDI Verlag / Düsseldorf / 1992 / …
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Schweizer / http://www.schweizer-fn.de/hydraulik/hydraulik.php / … / … / … / …