Changing a gas motor to electric on a mortar mixer

[BHD]

mortar mixer is not a cement mixer and a cement mixer is not a mortar mixer, there two different creators, a motor mixer is a brute force mixer, it needs horsepower, the concrete mixer is a drum that rotates, and only has to tumble the contents.

mortar mixer

concrete mixer, FOR A PERrrrrrrrrrrrrrrrrrrFECT MIX

 

[mx842]

I am puzzled by the electric motor horsepower you are considering. I had a concrete mixer for generations in my family and it had a fractional horsepower motor, off a 110 volt furnace fan I think. It was all open but tolerated getting splashed. We had a piece of tin over it as a deflector.
There is drive reduction in the V belt pulleysbetween the small motor pulley and the much larger pulley on the pinion and then a lot of gear reduction between the pinion and the main drum which it drives. You do not want it turning too fast or the mixing action will not happen.
How big it yours?
Dave M7040

Actually this isn't a concrete mixer it is a mortar mixer. With a concrete mixer you just turn the drum which doesn't take as much power as it does to spin the paddles in the drum. The gear reduction is needed because of the small HP engines they use on these things. Anywhere between 5 and 8 Hp are what is on most of them. To get the power to run the paddles you have to run the engine at high RPM's so you need to slow the output shaft down but maintain the power needed to mix the batch.

It take's about double the HP with a gas engine as it does if you go electric so if the mixer is sized with a 8 HP motor you can get by with a 4 hp electric motor and depending on what RPM's the electric motor turns will decide how it has to be geared. The motor I had was 5 hp and ran at 1750 RPM's so I didn't need to gear it down much and is why I thought I would use it.

That idea was scrapped though when I decided to use the Gravel as a power source. It took a little thinking and planning but I finally got it up and running. I want to post some pics of the end product but I haven't had the time to do so. Maybe in a day or two I'll get the pics on the computer so I can post them here.

OH SNAP!! I didn't see BHD's post up above that explained the difference. I'll try to do better in the future:drink: