Horsepower for hoist or lifting device

[n8engr]

I was wondering if anyone has any experience with sizing of motors for lifting devices. I'm looking for a general rule of thumb, say, how many horsepower per ton of lift required. Nothing exact, just something to get an idea for electrical demands.

 

[dpc]

You might have better luck posting in the mechanical engineering forum. We're just dumb electrical engineers here.

 

[cbarn24050]

Hi, roughly (I cant be bothered to look it up) 500lb 1foot per second = 1 horsepower.

 

[nbucska]

75 meterkilogram/sec = 1HP = 736 W <nbucska@pcperipherals.com>

 

[GSI1]

A general rule of thumb would be 1 Hp per Ton, but it would depend on the hoist gearbox

 

[jbartos]

Suggestion: Try software:

http://www.dynamicdesignermotion.com/sw/ddmp/apps.htm

 

[jbartos]

Small encore: Visit

http://www.reliance.com/prodserv/standriv/appnotes/d7743.pdf

etc. for more info