From Mitsubishi EDM/Laser
Many shops are taking a closer look at the cost of operating a machine tool. How much energy does it consume? Does it create excessive heat, making the shop air conditioning work harder? Does it stretch the life of cutting tools and consumables?
Mitsubishi EDM (Wood Dale, Illinois) has been adding features and capabilities to its wire and ram EDM units to reduce operational costs. As the price of energy and raw materials edges up, every type of machine tool will have to be scrutinized for similar economies and cost-saving strategies.
Its FP80V power supply has a power regeneration circuit that reduces power consumption by 20 percent compared to the FP60EA power supply it replaced. The regenerative power supply "saves excess energy from one spark and adds it up until enough energy is stored to make another spark."
The FP80V reduces power consumption by 50 percent when machining carbide, compared to the older power supply, which had an optional SP circuit for machining carbide. The new supply unit does not require a special circuit for carbide cutting.
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