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Old 05-07-2012, 09:55 PM   #1
Pwaley
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Default Stahlwille vintage 793 torque wrench tester **

I'm trying to find more information regarding this early-mid '80s vintage Stahlwille torque tester good for 0-400nm. Any insight is greatly appreciated.

Last edited by Pwaley; 05-17-2012 at 12:40 AM.
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Old 05-07-2012, 09:59 PM   #2
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Default Re: Stahlwille vintage 793 torque wrench tester **

I have info.. Thats an awesome piece ! Looks brand new and probably worth a ton. How did you get it?
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Old 05-07-2012, 10:05 PM   #3
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Default Re: Stahlwille vintage 793 torque wrench tester **

How accurate is such a device? I have no idea on how the mechanism works as I am not an engineer nor can I read German

Last edited by Pwaley; 05-08-2012 at 04:15 AM.
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Old 05-07-2012, 10:06 PM   #4
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Default Re: Stahlwille vintage 793 torque wrench tester **

Holy shit its the holy grail of torque wrench testers! @_@
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Old 05-07-2012, 10:09 PM   #5
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Default Re: Stahlwille vintage 793 torque wrench tester **

I edited my first post. Based on the accuracy certification it's good for about 400nm! If the numbers are in fact true, the tester looks to be damn accurate.
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Old 05-08-2012, 10:58 AM   #6
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Default Re: Stahlwille vintage 793 torque wrench tester **

bump
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Old 05-08-2012, 11:05 AM   #7
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Default Re: Stahlwille vintage 793 torque wrench tester **

How does one calibrate the calibrator?
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Old 05-08-2012, 01:25 PM   #8
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Default Re: Stahlwille vintage 793 torque wrench tester **






Last edited by Pwaley; 05-17-2012 at 12:40 AM.
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Old 05-08-2012, 01:27 PM   #9
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Default Re: Stahlwille vintage 793 torque wrench tester **

nice tool
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Old 05-08-2012, 02:04 PM   #10
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Default Re: Stahlwille vintage 793 torque wrench tester **

Quote:
Originally Posted by Jagmandave View Post
How does one calibrate the calibrator?
Force * Distance = Torque. Apply a known weight to the drive at a known distance, and you know how much torque it should read. Move the silver block until you get the correct reading.

Here's a picture to illustrate:

Last edited by lametec; 05-08-2012 at 02:07 PM. Reason: Added picture
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Old 05-08-2012, 02:47 PM   #11
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Default Re: Stahlwille vintage 793 torque wrench tester **

Drool...
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Old 05-08-2012, 05:27 PM   #12
e30bradley
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Default Re: Stahlwille vintage 793 torque wrench tester **

Quote:
Originally Posted by Jagmandave View Post
How does one calibrate the calibrator?
thats what I was thinking when I looked at this yesterday
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