Gas powered grinder

buckmaster96

buckmaster96

Joined
Jan 6, 2012
Messages
794
i am wanting to build a grinder and looking for a cheap motor. then i got to thinking:eek:. what if you took a kmg or nwg style 2x72 grinder and hooked it up to a gasoline powered motor. i mean you would get more horsepower for the money.(imagine an 8 or 10 hp belt grinder) and if you hooked it up to a foot peddle of some sort then you would have better speed control. anyone done this or think it will work? if i get enough positive answers then once i get it built ill post a thread here about it
 
I think it would work, but gas isnt cheap electricity is.

Love the idea of a foot pedal for speed control though.
 
i dont think the cost will be increased by much. i figure if i can go all day, all out on my quad 350cc yamaha warrior on 2.5 gallons then you could run the much smaller engine all day on a half gallon or so of gas
 
Many grinders in the third work are run by small gas motors. There was a video clip on this forum a few years back of a real primitive shop setup.
 
Then there would be competition for the best gas powered grinder and we would have fuel injected V8s with dual exhaust.
 
Exhaust fumes and noise are the teo biggest problems that come to mind. If you work outdoors these are a bit less of a concern... but working indoors (even with the garage doors wide open) this would not be a viable solution.
 
As others have mentioned the exhaust would be a problem. The other one I see, which probably can be worked around, is maintaining the gas pedal while you grind. I know for myself I tend to "rock" when I do grind a knife. I keep my hands and upper body as stationary as possible and kinda use my whole body to move the blade. So I'm shifting my weight from one side to the other. Trying to maintain a consistent pressure on a foot pedal when doing that would seem like it would be difficult (at least for me). You might be better off rigging it up like a lawn tractor or a mower where you have a lever to control the throttle.
 
I love it. Rabbit for hogging out, and turtle for finish work.
You can always port the exhaust outside, but the noise will always suck.
 
If I was an off the grid type and had to do it without electricity then gas would also be scarce and I'd try to use water or wind power.

Even then I'd be converting that to electricity


But If I was stuck on using a gas engine I'd use it to drive a hydraulic pump and leave those outside.
Then I'd plumb hydraulic lines inside and run the motor with a hydraulic motor.


You would have variable speed with a flow controller and also have a power source for a hydraulic press
 
one thing to consider is that it will take a five horse power gas motor to replace 1.5 horse power electric motor. this is because of the more linear torque horsepower curve of the electric motor.
 
I say do it, document it, then make a guide ;)

Exhaust will be easy, fix, just port it out of the garage, think dryer vent style. The noise will suck, but have you noticed grinders arent exactly quiet I always grind with earbuds anyways.
 
In the right location, it could work. Set it outside where fumes aren't an issue, run a pulley to a line shaft, then you'd be in business.
 
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