Geared Head Drill Press- Info and VFD help

[zeug]

Hi All,

I just picked up a geared head drill press by Bergman Borr from Sweden. It has a high low lever, but also gears that are manual change. The price was very good. I believe it is a model P12 (see pic below), but am struggling to find a manual for it. Any leads would be appreciated.

I am now in the process of finding a VFD since it is 3phase and I have only single in my garage. A VFD will also reduce or eliminate the amount of manual gear changing I will need to do. Win/Win. I had done my research and settled on a TECO L510-201-H1-U, but can't seem to find anyone with one in stock at a reasonable price <$200. So I may need to broaden my search. I am scared of the Chinese units on Amazon based on others comments, but have no real experience with them. What other quality brands should I be looking at that are comparable to the TECO?

 

[shawhite]

Kb drives, invertek, weg

 

[u3b3rg33k]

Have you tried wolf automation? that drive lists as 4.3A (CT), which leaves you very little headroom. I'd probably look at a 1.5HP drive just so you have a little extra capacity if you're going to run it slow.

 

[zeug]

Kb drives, invertek, weg

Thank you. I've seen those around and hate to roll the dice on an unknown. I've also seen Hitachi and other big names, but they are at least twice as much $$.

Have you tried wolf automation? that drive lists as 4.3A (CT), which leaves you very little headroom. I'd probably look at a 1.5HP drive just so you have a little extra capacity if you're going to run it slow.

Tried Wolf- ETA June. My thoughts on 4.3A is continuous and the rating on the motor is peak. That would almost never happen on a drill press unless I'm doing something wrong. If it was a lathe or mill, I would size up. Am I off base here?

 

[shawhite]

I have both KB and Invertek they both have been solid. KB has excellent customer service.

 

[u3b3rg33k]

Thank you. I've seen those around and hate to roll the dice on an unknown. I've also seen Hitachi and other big names, but they are at least twice as much $$.

Tried Wolf- ETA June. My thoughts on 4.3A is continuous and the rating on the motor is peak. That would almost never happen on a drill press unless I'm doing something wrong. If it was a lathe or mill, I would size up. Am I off base here?

4.3A @ 60HZ, @ 230V. I assume if you're going to run the motor slower you'll need the amps to make the torque. so we're not talking about power, we're talking torque.

I'd check the manual and see what it'll do on overload. not the peak overload but the 60s overload. I've got a few applications where I'll happily let a VFD "overload" if it's transient, or saves the process, vs erroring out at 100% current.

My go-to drives are Hitatchi (P1, WJ200), and invertek (mostly for the IP66 housings with local controls). very happy with both.
Personally, I'd upsize the drive slightly for < 60Hz use, and run it in vector mode.

here's a screen shot from the hitatchi specs. by default it'll allow 150% overload, but only for a minute. so it depends on what you're doing. vector mode can give you basically full torque down to almost 0 RPM. otherwise you're either in V/Hz mode, or some kind of manual torque boost.



this may be an option:

ODE-3-120043-1F12

www.driveswarehouse.com

or if you want 115V plug in (non-GFCI friendly)

ODE-3-110043-1012

www.driveswarehouse.com

 

[RTM]

I have a bunch of KB stuff at work running a few machine peripherals. Great stuff, still supported 25 years later.

 

[seber]

I have a Teco and a Fuji. If I ever need another it will be Fuji. No balance resister needed, no electronic noise. Runs stone cold. The Teco makes so much electronic disturbance my wife complains over 100 feet away. And that is with equalizer.

 

[nadogail]

Looks like a formidable machine. may you enjoy good health as it serves you for many years.

 

[Mohawk Dave]

Do you have all the gear sets?

 

[bl00]

I've had good luck with used ones from ebay. Two Fuji Frenic and one Delta. Both types are silent and the manuals were available online. So how does your drill work? The lever is for hi/low range and the other speeds are via removeable change gears or are there more levers on the other side of the head? Cool drill!

You could try this Swedish forum for info. They have a section with manuals too.

Verktyg och verkstadsmaskiner

Verktyg och verkstadsmaskiner

www.maskinisten.net

 

[zeug]

I have a Teco and a Fuji. If I ever need another it will be Fuji. No balance resister needed, no electronic noise. Runs stone cold. The Teco makes so much electronic disturbance my wife complains over 100 feet away. And that is with equalizer.

Hmm. Good feedback. What does that disturbance effect? TV?

Looks like a formidable machine. may you enjoy good health as it serves you for many years.

Thanks, I was looking for a DP with T-slot table and capacity for at least 5/8" in steel. For $350, seemed like a no brainer. I don't know about other parts of the country, but here in CO, everyone is hanging on to their machines, or asking big $$. Crazy times.

Do you have all the gear sets?

Yes.

So how does your drill work? The lever is for hi/low range and the other speeds are via removeable change gears or are there more levers on the other side of the head? Cool drill!

You could try this Swedish forum for info. They have a section with manuals too.

Verktyg och verkstadsmaskiner

Verktyg och verkstadsmaskiner

www.maskinisten.net

On the speed plate pic in first post, you can see the three sets of gears. They can be used with the smaller gear on the motor or spindle, thus giving 6 speeds. Combine that with the Hi / Low lever and you get 12. I think that is where the P12 model number comes from. I am assuming I will use a faster gear most of the time and dial down speed with the VFD as that will be more convenient. If Im drilling a lot of large holes, I can always re-gear. Gears are on the top under the dust cover and are stored on the back of the machine under another dust cover.

Thanks for the lead on the Swedish forum. I'll give it a shot.

 

[zeug]

Dust covers removed to show gears... Small are metal. Large are phenolic. Runs pretty
quiet and smooth.

 

[dutchgray]

These are nice drills.
Yes pick off gears are not as nice as a multiple range gearbox but they are still pretty quick and easy to change, you have the complete set and with the two speed box fitted you get a good amount and wide range of speeds.

I have used Invertek drives a couple times, they work well.

I would be very wary running it at slow speeds for heavy use or sustained periods of time, I would not go below 50% of normal or 30Hz at all, the motors in those are not a standard frame so you really do not want to hurt it by getting it too hot, over here the very few remaining motor shops are really not interested in rewinding small motors like that so it would probably be cheaper to buy another drill than fix the motor.

 

[u3b3rg33k]

These are nice drills.
Yes pick off gears are not as nice as a multiple range gearbox but they are still pretty quick and easy to change, you have the complete set and with the two speed box fitted you get a good amount and wide range of speeds.

I have used Invertek drives a couple times, they work well.

I would be very wary running it at slow speeds for heavy use or sustained periods of time, I would not go below 50% of normal or 30Hz at all, the motors in those are not a standard frame so you really do not want to hurt it by getting it too hot, over here the very few remaining motor shops are really not interested in rewinding small motors like that so it would probably be cheaper to buy another drill than fix the motor.

On that note, it might be wise to put a thermistor on the windings. then you can let the drive protect your windings. cheap protection.
I don't see how the motor gets cooled in the photos. you could always slap a fan on the motor and then not worry much about it.

 

[scooby074]

We had one at work that has the speed selector so no change gears. Same brand. It kicked ***. Will twist you up if youre not careful.

 

[dutchgray]

On that note, it might be wise to put a thermistor on the windings. then you can let the drive protect your windings. cheap protection.
I don't see how the motor gets cooled in the photos. you could always slap a fan on the motor and then not worry much about it.

I think these cool by absorbing the heat into the cast iron housing.

 

[u3b3rg33k]

I replaced some ancient Mitsubishi Freqrol Z200s with inverteks. fan application, ODP motors. with the Mitsubishis, those motors were hot to the touch at 10-15Hz (or any speed). at the same 10-15Hz on an Invertek, the motors are cold to the touch after 72hrs continuous operation. I do have the energy saving features enabled for both the VFD and motor.

 

[foghorn1966]

Weg. Thru Automation Direct... Good support.