Why does nobody talk about the actual power draw of coolant pumps?

I was looking at my shop's electric bill from last month and decided to check the specs on our main Haas mill's coolant pump. The manual says it pulls 3 horsepower, which is over 2,200 watts just for coolant circulation. I found that out while trying to figure out why our peak usage was so high during long cycle times. Anyone else ever actually look at their pump's energy use?

2 comments

2 Comments

butler.mark2mo ago

Yeah, "peak usage during long cycle times" is what got me too. I spent a whole afternoon trying to figure out why my home shop meter was spinning like a top during a four-hour job. I was checking the spindle drive and servos, feeling real smart. Turns out the little pump I'd forgotten about was just gulping power the whole time. Felt like a real genius after that.

dylanward2mo ago

Feeling real smart" is the universal first step.