Geiger g25 in Sweden (english)

[dithes]

Hi! I´m Edward from Sweden.
I bought a geiger g25 this summer from an old closed down furniture factory here in south Sweden.
It is the first one I have seen for sale in Sweden but seems like they are very common in Germany.
Unfortunately there is zero info outside Germany about this machines.
Luckily I found this forum.

I´m doing a full restoration on the machine, I have taken everything apart and repainting it.
I have also ordered some new bearings and a new belt.

I have some questions that I hope you could help me with.

1 - I got some schematics with it when I bought it but no manual or service manual, is those available? (english or german)
2 - I like to use my Oneway Stronghold chuck with it, do the 1½x6 adapter work with some modifications?
3 - The tool rest seems to be a od size? 32mm? I was thinking maybe a brass sleeve 32mm to 1 inch? Or is there 32mm tool rests available?
4 - Is there a way to see how old the lathe is?

There is most likely be more questions done the line

Here is some pictures:

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IMG_20191108_152011.jpg (102.6 KiB) 6799 mal betrachtet

IMG_20191121_091240.jpg (143.25 KiB) 6799 mal betrachtet

IMG_20191122_132405_1.jpg (111.98 KiB) 6799 mal betrachtet

I hope its ok that I write in English! Like I said its really hard to find info on these machines outside Germany.
If you want to answer in German that is fine, google translate works ok

Thanks!

[schwede]

Hy dithes,

you have received an email!

[Jurriaan]

The toolrest may be either 32 mm or 1 1/4" (which is close, but not quite the same). You'd need to measure with a caliper to be sure.
In the first picture I even see the optional outboard turning bed. Nice!

[dithes]

The toolrest may be either 32 mm or 1 1/4" (which is close, but not quite the same). You'd need to measure with a caliper to be sure.
In the first picture I even see the optional outboard turning bed. Nice!

Oh ok! I will check next time I´m in the workshop. There was a lot of accessories with it (outboard bed and copy carriage) but only one tool rest
unfortunately :( I think they did run it as a copy lathe in the factory. It even has a dowel accessory that bolts on to the carriage.

[Wolaruna]

2 - I like to use my Oneway Stronghold chuck with it, do the 1½x6 adapter work with some modifications?

Ad far as i know, there ist a insert available for the Stronghold chuck. https://drechslershop.de/gewinde-einsat ... ber=ow0358

[dithes]

2 - I like to use my Oneway Stronghold chuck with it, do the 1½x6 adapter work with some modifications?

Ad far as i know, there ist a insert available for the Stronghold chuck. https://drechslershop.de/gewinde-einsat ... ber=ow0358

I think I emailed them and the said that that is just the standard 1½x6 from oneway, not with the 40mm register at the back?

[herosseveros]

Hy dithes
I only have this brochure from this machine.

Greetings Peter

gei_g25.pdf

(536.26 KiB) 372-mal heruntergeladen

[dithes]

Thanks for the manual! Do anyone know if there is a service manual also?

[der Kirner]

Servus beinand,
ich dachte immer, Forumssprache ist Deutsch???????????

Gruß Hans

[schwede]

Servus Hans,

Servus beinand,
ich dachte immer, Forumssprache ist Deutsch???????????
Gruß Hans

Hier im Forum gibts aktuell 279691 Beiträge.
Es sind wohl alle in mehr oder weniger gutem Deutsch verfasst.
Lies einfach diese Beiträge.
Hier hat jemand um Hilfe gebeten, und ihm wird geholfen.
So soll das auch sein.
Auch mir wurde schon auf der ganzen Welt geholfen,
wenn ich jemanden freundlich um Hilfe gebeten habe!
Meist war ich auch der Landessprache nicht mächtig!

Nix für unguat!

[finn2012]

Edward,

hopefully these are the documents you are looking for.

Best regards

Uli

Geiger G25 Schmierplan 3.jpg (198.58 KiB) 6342 mal betrachtet

Geiger G25 Schmierplan 2.jpg (135.99 KiB) 6342 mal betrachtet

Geiger G25 Schmierplan 1.jpg (103.6 KiB) 6342 mal betrachtet

Geiger G25 Bedienungsanleitung 6.jpg (227.43 KiB) 6342 mal betrachtet

Geiger G25 Bedienungsanleitung 4-5.pdf

(541.17 KiB) 159-mal heruntergeladen

Geiger G25 Bedienungsanleitung 1-3.pdf

(1.63 MiB) 349-mal heruntergeladen

[der Kirner]

Servus Markus,
ich entschuldige mich
Ich lese fast alle Beiträge hier im Forum, weil ja auch das meiste interessant ist.
Wenn dann so ein Beitrag dann in -für mich- Fremdsprache erscheint, bin ich geliefert
Dithes hats ja auch geschrieben, dass der Beitrag in englisch erscheint, daher hätt ichs auch gar nicht anschauen müssen.

Gruß Hans

[Holzpeter]

Hallo Hans,

wenn Du mal nichts verstehst, weils in ausländisch ist (ich hab' da auch meine Probleme) probier's mal da mit:
https://www.deepl.com/de/translator
...einfach Text ins linke Feld rein kopieren und warten, was passiert....

Hölzerne Grüße
Peter

[dithes]

hopefully these are the documents you are looking for.

Thanks!

ich dachte immer, Forumssprache ist Deutsch???????????

Sorry for writing in english Hans! But like I said there is literary zero info about these machines outside germany.
I´m to old to learn german now

[dithes]

I was in the workshop today and measured the tool post, it was 32mm spot on.
Is there any 32mm tool rest available or is a sleeve / bushing the only option?
I only find 30mm on google.

Painted the bed and did reassemble the tail stock today.

IMG_20200225_155728.jpg (140.92 KiB) 6083 mal betrachtet

IMG_20201107_113052.jpg (178.69 KiB) 6083 mal betrachtet

[dithes]

No body knows if 32mm tool rests exists? What do other g25 users do?

Some progress:

IMG_20201109_145525.jpg (168.24 KiB) 5956 mal betrachtet

IMG_20200225_155750.jpg (139.82 KiB) 5956 mal betrachtet

IMG_20201107_113017.jpg (118.89 KiB) 5956 mal betrachtet

Found some damage on the motor pulley, luckily they made an OK job fixing it:

IMG_20201107_125100.jpg (116.82 KiB) 5956 mal betrachtet

[Albuser]

https://www.stadler-geiger-maschinen.de ... d-apparate

[chris_11]

Hello,

I would run the motor over a frequency inverter. Then you do not need the damaged pulley and can use the smaller diameter pulley. It makes live much easier if you can set any RPM. Be happy that you have a 32mm tool-rest. You can easy adapt smaller diameters but the larger diameter gives more stability.

BR
Christian

[Mue]

Hi Edward,

Stadler may be a source for toolrests but you can also ask our colleage and forum member Jockel. His toolrest are well known and appreciated for strength and usability.

His homepage is only in German as fas as I see but he may be able to help you also in English.
You can find his custom made toolrests here: http://jmader.de/entwicklungen/handaufl ... timierung/

He might also be a good source for especially adapted frequency changers.

Vänliga Hälsningar
Manfred

[dithes]

Stadler may be a source for toolrests but you can also ask our colleage and forum member Jockel...

I did actually email standler about a month ago with the same questions I have asked here. Manual, spare parts and so on.
Never got an answer

Those Jockel tool rests looks very nice! I will contact him.
Exactly what I was looking for, thank you very much!

I will probably upgrade to a frequency drive in the future but I want to run the lathe a bit first.
When you install a frequency drive on a g25 do you have to remove the break?

[Mue]

Hi Edward,

I am not a Geiger specialist but as far as I know the brake is activated with a lever. You may also be able to set , adjust or activate/deactivate the brake ramp on the VFD.

So you could use either the mechanic or VFD brake, but I do not know if their could be an interference. In this cases I am sure Jockel is the one to ask. VFDs on Geigers are common and it should be no rocket science.

Regards,
Manfred

[chris_11]

Hello,

typical you use a ramp in the FU to increase and decrease/Stop the RPM. However this might require an additional break resistor on the FU. You can still leave the manual brake on the machine but you will not need it often.

br
Christian

[dithes]

Thanks guys!

I have a new question. I forgot to look how the front bearing was mounted (7212) when I removed it.
I checked the skf website how they recommend installing it,
I´m i correct that the arrow should be to the front of the lathe?

Untitled-1.jpg (31.35 KiB) 5589 mal betrachtet

[dithes]

Been a while since I last posted here.
Almost done with the rebuild now, only small stuffs to do.

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How do you other geiger owners level your lathe?

[Oglinchen]

Hi
You did an very nice Job. Place the small Lathe on an concrete base and srew it tightly.
Or Level it with screws and nuts on a first base, and then cast with concrete the final base.
with greets, Oggi