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How much horsepower is really needed?
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Posted to rec.woodworking
Andy Dingley
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How much horsepower is really needed?
On 19 Nov 2005 09:03:04 -0800,
wrote:
Andy, what relevance is starting torque on a table saw (or any
woodcutting saw for that matter)?
It's not the "starting" torque on a saw, although it's hard to give a
simple phrase for it. A universal motor compared to an induction motor
has a torque curve that gives maximum torque at minimum speed, hence the
high starting torque for applications that need it.
In a sawbench, then the time you need torque is to avoid the blade
slowing in a heavy rip. Although you're not down to zero speed, you're
certainly into the range where a universal motor may well have more
torque than an induction motor that's nominally quite a bit more
powerful.
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