View Full Version : p-5 pullmax motor size ?
11-17-2004, 05:43 PM
just added bare p-5 to my collection of tools ,motor plate not readable looks to be 3 phase .will be changing motor but too what size ,could use a manual for p-5 would pay for good copy,any info would be helpful.thanks you metalheads
11-17-2004, 06:30 PM
I'd guess around 2hp, maybe 1.5hp since the P3's have 1hp.
My question is why do you want to change the motor? I assume it's because you don't have three phase available. If that's the case put a VFD (inverter) on the machine and run off single phase.
The cost will be about the same as changing to a single phase motor, plus you won't have the hassle of trying to mount and align another motor.
With the VFD you'll have variable speed which is a big advantage on a Pullmax used in shaping. I use a VFD on my P3 and slow it down or speed it up to suit the job. After using the variable speed I would never go back to a fixed speed machine.
Another factor to consider is when machines are switched over to single phase motors you decrease the value in most cases.
11-17-2004, 07:21 PM
doug thanks , is the vfd speed controled by pedal or preset ,i was changing motor because new is new and the value of the machine is to save the bad nerve in my neck,i"m putting this bad boy on wheels so how high would you set die heigth compared to say my forarm ,you have a great idea ,i was thinking of a foot actived yoder system.how would my vfd search begin ,thanks ,tim
11-18-2004, 07:41 AM
My VFD has a knob to set the speed. The VFD is mounted close enough that I can reach over and tweak the knob to easily change speed while forming if needed. It also has a time delay to slowly ramp up to the set speed. If I'm working on something where I'll need both hads on the work I flip it "ON". In the time it takes to get up to speed I'm able to get that hand on the workpiece before the real action starts.
You can run a VFD off a foot pedal. Linemaster Company makes pedals specifically for VFD speed control use. Do a search for Linemaster. I've never tried foot control so I can't comment much on it.
I have thought about a simple ON/OFF by a foot pedal, maybe like a dead man switch, when you take your foot off the pedal the machine shuts down. A couple times I've been in a situation where the panel started vibrating badly and was kind of out of control so it would have been nice to shut the machine off while still having both hands on the work.
As to the height, that's something you'll have to experiment with. Mine came with a factory stand so I haven't given much thought to changing it.
To buy a VFD, search on ebay. You'll come up with names of a couple large outfits that'll sell direct for good prices.
12-17-2004, 09:01 PM
doug,thanks for you valuable ideas ,sorry to say but i had to change the motor, it has a strange voltage but i did stay with 3 ph. and will be installing vfd and pedal to control it.so i will have to build a new mount but thats half the fun.have mounted on casters and think i've set the heigth rigth , these p-5 are some heavy pups [1600 ]yes it was 2 hp .i should have running next year wasting to much time on these xmas thing. so if anyone can use a 2 hp 60 hz 330 ,550 volt 3 phase motor to save your pullmax i love to trade hell would just like to see it go to good use ,you ship its yours. later & best beating to you all, tim
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