Monday, June 25, 2007

Hydraulic Pumps for Injection Molding Machines

Even though it is an accepted fact that Variable displacement pumps are far more energy efficient than conventional fixed displacement pumps, for same exact specification of a given machine, how much power reduction is possible? In some of the applications like on Battenfeld and Demag machines, we have seen a difference of only 20% power saving between fixed and variable displacement pumps.
Can anyone come online and give some specific case studies and results?

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