Dodge Posted August 31, 2007 Share Posted August 31, 2007 I thought, when I put this together, I might need a bigger motor. I am sure of it now I'm getting ready to buy a motor and I see terms like "compressor duty", "farm duty", "industrial/commercial duty", "general purpose". What kind of motor do I want for a tool such as a belt grinder? I was looking at these:Harbor Freight Tools - Quality Tools at the Lowest PricesHarbor Freight Tools - Quality Tools at the Lowest Prices Pros? Cons? (other than "it's from HF" lol) p.s. sorry for the poor quality pic attachments, cell phone cam with cracked lens Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted August 31, 2007 Share Posted August 31, 2007 You sure don't want the one in that thumbnail---all those openings to feed grit and metal into the innerds of the motor---ugh! In general for a good sized belt grinder you want a 1.5 to 2 hp continuous duty sealed motor. I'd suggest talking to the local motor repair shop and see if they have a good one to sell you rather than an HF one. Quote Link to comment Share on other sites More sharing options...
Dodge Posted August 31, 2007 Author Share Posted August 31, 2007 I didn't think about the dirt factor. Thanks TP Quote Link to comment Share on other sites More sharing options...
irnsrgn Posted August 31, 2007 Share Posted August 31, 2007 farm duty are usually fairly decent motors, fully enclosed for weatherproofing and made for tough jobs where you just turn it on and leave it. Quote Link to comment Share on other sites More sharing options...
Dodge Posted August 31, 2007 Author Share Posted August 31, 2007 Jr would that stand up to the constant but intermittent load put on a grinder? Quote Link to comment Share on other sites More sharing options...
plain ol Bill Posted September 1, 2007 Share Posted September 1, 2007 I reccomend a 2 HP for your grinder. I also reccomend using some step pulleys so you can have different speeds. The finer the grit the slower you want to run. If possible a vari speed motor set up will have you falling in love w/ it very shortly. plain ol BillBill's Blades Home Quote Link to comment Share on other sites More sharing options...
Bear Posted September 1, 2007 Share Posted September 1, 2007 Hi dodge, How big is that belt? What voltage is in your shop? 2hp will pull 24-25 amps on 110 v half that for 220. industrial duty motors are better at continuous duty, farm duty are water proof(or at least rain proof). You might be better of looking at your local scrap place for a used motor- or especially at yard/garage sales. I picked up 2 baldor motors for $5 at a garage sale- a 1hp industrial and a 1/3 farm duty- if you can find a baldor it will usually run no matter how rusty or gunked up it is. depending on your belt size i think 2 hp( read that as 2hp and not 2hp developed) might be overkill- 1- 1.5 should be fine. i actually have a 1/2 hp on my foley belsaw belt grinder and it doesnt bog down easily. Sean Quote Link to comment Share on other sites More sharing options...
Dodge Posted September 1, 2007 Author Share Posted September 1, 2007 The belt is 2" x 72". The 1/2 hp I'm using is easily bogged down. I have considered a 1.5 hp as well. It just depends on what I can find with the green I have in my pocket. LOL Quote Link to comment Share on other sites More sharing options...
Bear Posted September 1, 2007 Share Posted September 1, 2007 That is a big belt. 1.5hp should do it . saw a 2 hp baldor industrial go for $40 at auction today(ironfever auction). It draws 24 amps at 110v. My foley uses a 1" x 42"( i think) belt so it can use a smaller motor. Sean PS. happy birthday Quote Link to comment Share on other sites More sharing options...
irnsrgn Posted September 1, 2007 Share Posted September 1, 2007 what you need is one of them Pink Motors Dodge, they take a licking and keep on ticking, Leah may have a spare. LOL Quote Link to comment Share on other sites More sharing options...
Daryl Posted September 1, 2007 Share Posted September 1, 2007 If you are going to get a 2HP motor, consider wiring it for 220. It makes life easier for the the motor, especially on startup, and your overall power bill will be less. Quote Link to comment Share on other sites More sharing options...
Bear Posted September 1, 2007 Share Posted September 1, 2007 Hi daryl, That would be really great but some of us do not have 220 in our shops! Sean- who wishes his shop had 220v Quote Link to comment Share on other sites More sharing options...
Dodge Posted September 1, 2007 Author Share Posted September 1, 2007 Thanks one and all for the greatly appreciated input. I'm on my way to go motor shopping, armed with this info I will probably shoot for 2 hp 220 volt for the amp savings. May be a little over kill, but as Tim "the Tool Man" Taylor says, "Errr Errr Arrrrrrrh!" Quote Link to comment Share on other sites More sharing options...
Glenn Posted September 1, 2007 Share Posted September 1, 2007 Call on places that have used motors, or repair motors. New motors are fine, but you can get an old motor at twice the size for maybe the same price. Quote Link to comment Share on other sites More sharing options...
Ten Hammers Posted September 4, 2007 Share Posted September 4, 2007 Scott, TEFC ( totally enclosed fan cooled ) Dayton motors work really good for me. they used to be about hundred dollars a horse locally but I saw that a 1 1/2 horse was up to about $ 185.- a while back. Good luck. Quote Link to comment Share on other sites More sharing options...
Jmercier Posted September 4, 2007 Share Posted September 4, 2007 I would recomend a good name brand Baldor, Leeson or Dayton single phase 1.5 horse TEFC motor. It's worth the extra money to get a good name brand motor which will last a long time. I'm driving my 2x72 belt grinder on a 1HP Baldor, and while I can bog it down if I try, mostly it's pefectly fine for everything I'm doing. I dont tend to do a lot of reall hard push hogging on a belt, I'd rather use a stone bench grinder or an angle grinder for that. Quote Link to comment Share on other sites More sharing options...
rthibeau Posted September 5, 2007 Share Posted September 5, 2007 what you really need Scott is a 318 2bbl with auto trans from 1972 that you can hook up to a line shaft and go to town with every tool you can find and a smile on your face...:) Quote Link to comment Share on other sites More sharing options...
Dr Dean Posted September 5, 2007 Share Posted September 5, 2007 Dodge I might be able to come up with a motor that you could try out before you spent good money on something that doesn't work for you. Quote Link to comment Share on other sites More sharing options...
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