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Old 01-02-2010, 10:36 PM
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Default What kind of power supply for roller

I would like to add a power supply to my tubing roller. I would likely end up just biulding a new one at the time, but the manual roller is getting old fast. I had seen a couple that were adapted to run off of a Rigid 300 pipe threader drive, and that seems like a good idea until I priced those out. They seem to be listed for $900ish used around here, so too expensive for my tastes. I need it to be relatively slow/low geared and reversible. What type of motor and reduction would be good to use for something like this?
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Old 01-02-2010, 11:33 PM
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The Rigid 300 has a 1/2 hp gearmotor with 38 rpm output.

If you want a super compact drive, the gearmotor (motor + gearhead all in one piece) is the way to go. May be hard to find the right hp & ratio ... you'll need about 50:1 reduction using a 1725 rpm motor.

A somewhat larger package, but much easier to put together, would be a 1.5 - 2.0 hp 3ph motor (cheap & easy to find on Craigslist or eBay) + a VFD for fine speed control. Use about a 3" sheave on the motor & a 12" sheave on the roller drive, giving 4:1 reduction, which the VFD can then reduce another 10:1, giving 40:1 total reduction. That would produce about 43 rpm (and you can go slower) + reversing.

For the motor, something like this.

For the VFD, this or this would work fine.

About $100 for the motor (maybe less on Craigslist) + $200 for the VFD, + a couple of sheaves & a v-belt.

The reason that Rigid uses a 1/2 hp motor is that all the speed reduction is in the gearhead. To do the same with belts & a VFD means using the larger hp motor.
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Old 01-02-2010, 11:42 PM
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Maybe an old winch(12V), or an old hoist?...
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Old 01-03-2010, 12:04 AM
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Get Old Man to send you the gearbox off a circle sprinkler.
Maybe Randy could get it close.
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Old 01-03-2010, 12:08 AM
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If you could find something like this one. Right at the present I don't have any idea how slow it is but she is slow. It is a double reduction and uses 120 volts and will reverse.
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Old 01-03-2010, 12:45 AM
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You have anything with hydraulics you could run a hydraulic motor off of power pack, tractor, wood splitter, etc? Control valve and some plumbing+couplers and your set to jet.
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Old 01-03-2010, 01:54 AM
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Quote:
Originally Posted by Walker View Post
I would like to add a power supply to my tubing roller. I would likely end up just biulding a new one at the time, but the manual roller is getting old fast. I had seen a couple that were adapted to run off of a Rigid 300 pipe threader drive, and that seems like a good idea until I priced those out. They seem to be listed for $900ish used around here, so too expensive for my tastes. I need it to be relatively slow/low geared and reversible. What type of motor and reduction would be good to use for something like this?
90% gearmotor, 1/3 hp, 10/20 rpm out. available at Surplus Supply. Jerry.
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Old 01-03-2010, 10:48 AM
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Lu47Dan Lu47Dan is offline
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Lightbulb A HF solution.

Walker, I have this HF Electric Pipe Threader. You would have to make an adapter for it but for $150, it should power your roller.
Dan
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  #9  
Old 01-03-2010, 09:55 PM
bgott bgott is offline
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Keep your eye out for a mobile home anchor machine. Some guys use the Ridgid 300 but they make a dedicated machine. They sell new ones at Northern Tool. They are $900 or so new, I found mine for $75. I see them on Craigslist occasionally for under $150. These machines have a ton of torque, I've had anchors hang up and, when I had a good enough hold on the machine, twisted them into pretzels. If you are off balance when it grabs you are in deep shit, even if you can kill the power it takes a while to wind down.

I meant the 700 Ridgid...http://www.ridgid.com/Tools/700-Power-Drive

Last edited by bgott; 01-04-2010 at 09:46 PM.
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Old 01-04-2010, 01:55 PM
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It looks like a gear motor would be ideal. There is an old drill and clamp type press that was my grandfathers over at my dads house. As I recall it was super low geared and would twist your body in half if it stuck. I'll swing by there tonight and see if it is still around and would be a viable candidate.
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