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  #1  
Old 10-08-2009, 07:39 PM
joebass joebass is offline
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Default Hydraulic valve questions....

I'm going to make a sheet metal corner notcher. I have a Haldex hydraulic unit and cylinder. Not sure on a valve though. Looking through northern tool I found these....

http://www.northerntool.com/webapp/w...ssearch=201305

I want to hook it up to a foot switch. Does this look right?

This is the power unit I have...

http://www.grainger.com/Grainger/wwg...=38&submit.y=1
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Old 10-08-2009, 07:54 PM
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Default Valve

Joe, I don't see why that valve won't work. That notcher will be real handy. I think if you put limit switches on the cutting arm so it will return after each notch it will be good. The tandem center will be good to for this appclation too. There's a notcher at work and thats how its set up too. Kevin
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Old 10-08-2009, 09:11 PM
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I'm way out of my league here but I think I'd be inclined to look for a low voltage solenoid, 12 or 24 volts.
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Old 10-08-2009, 10:12 PM
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I dont know, here's a site you may like for parts.
Surplus Center.

https://www.surpluscenter.com/sort.a...c&keyword=HDSD
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Old 10-08-2009, 10:29 PM
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I don't see a problem with the valve itself other than you will have to have separate votage sources for the HPU and the valve control circuits or add a step down transformer for the controls circuit.
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Old 10-09-2009, 10:27 AM
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You gots 3 phase power for your hyd unit??? Lucky dude...... 3 phase power out where I'm at is exorbitantly expensive.

The only issues with the solenoid I see is 110V switch gear is more $ and for me, harder to find and there is a bit more of a safety concern with higher voltages. You will have to work out where to get the 110 single phase switching power though. Maybe 2:1 step down off a single 3 phase leg. IIRC, 220/480 gives 220 v from any phase to neutral and 480 v phase to phase?? Bin a long time since I dealt with power circuits
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Old 11-17-2009, 12:49 AM
joebass joebass is offline
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I ordered the valve and have all the steel. Just need to find a notcher assembly. Any ideas in limit switches? What about a foot pedal? http://www.ssccontrols.com/homepage-heavyduty.htm
Can't I tap off one of the three pase legs for 120 V?

Heres what I'm going for....
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Old 11-17-2009, 01:20 AM
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Quote:
Originally Posted by joebass View Post
Can't I tap off one of the three pase legs for 120 V?
Not likely so easy; look what Cam posted to you:

Quote:
Originally Posted by camdigger View Post

You will have to work out where to get the 110 single phase switching power though. Maybe 2:1 step down off a single 3 phase leg. IIRC, 220/480 gives 220 v from any phase to neutral and 480 v phase to phase?? Bin a long time since I dealt with power circuits
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Old 11-17-2009, 09:53 AM
joebass joebass is offline
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I have 220V 3 phase, not 480V. I know that I can plug my single phase 220V welders in a three phase outlet by using a pigtail that only uses two hots and a ground.
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Old 11-17-2009, 01:18 PM
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Hey Joe PM me I'm going to send you something that might help you with the notcher. Thanks Kevin
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