NorthWoodsDiver
Contributor
So I embarked on a journey to build a tank tumbler for a pair of tanks, this due to getting a screaming deal on a pair of used steel tanks which after paying for I found some rust and pits.
I have found a couple 1/4hp electric continuous duty motors with 1750 RPM rating. For tank tumbling I need like 40-70 RPM so I will need to use a pulley system and maybe a jack shaft setup. However its been a while since I have done even basic math and I fall way short of knowing how to calculate what size pulley will lead the proper RPM. can anyone point me to some simple way of estimating this. I will be tumbling mostly steel 72's but eventually aluminum 80's, 63's, 40's, and who knows maybe even some smaller tanks. I know that RPM will drastically change for different Diameter tanks but the whole system will be adjustable for tanks from 4" to 8" diameters with the standard 7.25" being most commonly used.
I figured the best way to do such a variety of tanks would be to add a radiostat but I have heard thats not possible on AC motors, which is what I am going to use. is there any other option for making RPM adjustments?
Thanks
I have found a couple 1/4hp electric continuous duty motors with 1750 RPM rating. For tank tumbling I need like 40-70 RPM so I will need to use a pulley system and maybe a jack shaft setup. However its been a while since I have done even basic math and I fall way short of knowing how to calculate what size pulley will lead the proper RPM. can anyone point me to some simple way of estimating this. I will be tumbling mostly steel 72's but eventually aluminum 80's, 63's, 40's, and who knows maybe even some smaller tanks. I know that RPM will drastically change for different Diameter tanks but the whole system will be adjustable for tanks from 4" to 8" diameters with the standard 7.25" being most commonly used.
I figured the best way to do such a variety of tanks would be to add a radiostat but I have heard thats not possible on AC motors, which is what I am going to use. is there any other option for making RPM adjustments?
Thanks