- #1

Ranger Mike

Science Advisor

Gold Member

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## Main Question or Discussion Point

Ok fellow posters..

I am trying to compare two machine tools for economy of operation.

machine tool 1 uses 32 Nl/m air at idle (not moving) under power and moving uses 70 Nl/m

machine tool 2 uses 73.5 Nl/m air at idle (not moving) under power and moving uses 73.5 Nl/m

under power uses 70 Nl/m

the recommended air compressor should be 250 to 300 Nl/m

electricity cost 12 cents per KWH

the proposed machine tool would be under power and moving 5 out of 8 hours per day and idle the remaining time.

how do i calculate the cost savings of machine tool 1 over machine tool 2 based on air consumption at idle ?

any help is most heartily appreciated..

thank you

I am trying to compare two machine tools for economy of operation.

machine tool 1 uses 32 Nl/m air at idle (not moving) under power and moving uses 70 Nl/m

machine tool 2 uses 73.5 Nl/m air at idle (not moving) under power and moving uses 73.5 Nl/m

under power uses 70 Nl/m

the recommended air compressor should be 250 to 300 Nl/m

electricity cost 12 cents per KWH

the proposed machine tool would be under power and moving 5 out of 8 hours per day and idle the remaining time.

how do i calculate the cost savings of machine tool 1 over machine tool 2 based on air consumption at idle ?

any help is most heartily appreciated..

thank you