Motor for belt grinder

**grump** · 06-12-2012, 06:02 PM

A quick question for those who have built a belt grinder, 2 x 72.

Would a Dayton, 2 hp, 1725 rpm 115/230v motor be suitable with step pulley's?

I ran across one at a rummage sale that is currently powering an old table saw.

**Trenton** · 06-12-2012, 06:04 PM

Sounds prefect, and use the step pulleys.

**hig789** · 06-12-2012, 07:52 PM

I would say the horse power is great for a heavy duty belt grinder. I have a homemade buffer thats 1725rpm and I think its the perfect speed. The first thing I am doing when we move is making one of these, so if you could share your build with us it would be greatly appreciated.

**jeness** · 06-13-2012, 12:02 PM

Definitely, 2hp is even enough for knives. I am running a 3 phase 1hp with step pulleys ATM and it works perfect, I couldn't even slow it down.

**Alum of Potash** · 06-13-2012, 01:38 PM

Why not contact Grainger, the folks that market the Dayton motor in question? I have found that 3/4 hp 1725 rpm with a Viel 1x42 belt sander is more than enough (1/2 hp is normal). 2x72 with step pulleys is heavier. Grizzly's 2x72 belt sander for knives is 1 hp, without the step pulleys, and is probably underpowered to keep costs down.