I'd love to see some other tool holders tested like milling chucks, an SK collet setup, and a hydraulic holder with a sleeve to dee the difference (or lack thereof) compared to a non-sleeved grip. Thanks for making this video!
Hi Sanjay, The meter that does the measuring is from Gedore, a German torque tool manufacturer. The unit being used in this video can be found at the following link: bit.ly/3HgfP0f. As for the worm-gear drive used to turn the tools, that was produced by our team in Switzerland. They have an identical unit they use for their own testing. We liked it so much we purchased one from them for our own use! As David mentions in the video, we clamp a test pin with a hex head in the toolholder. This hex head interfaces with the Gedore meter. When David turns the wheel it turns the holder, which forces the hex head of the pin to turn the meter interface and increase the value shown. The meter stops recording the value once the pin in the toolholder "slips" and spins within the toolholder. What that means is that gripping force was lost at the recorded torque, showing the value at which the tool slipped.
I'd love to see some other tool holders tested like milling chucks, an SK collet setup, and a hydraulic holder with a sleeve to dee the difference (or lack thereof) compared to a non-sleeved grip. Thanks for making this video!
This is amazing!!!
Amazing ! Would like to know ,how the torque is measured. What is this equipment
Hi Sanjay,
The meter that does the measuring is from Gedore, a German torque tool manufacturer. The unit being used in this video can be found at the following link: bit.ly/3HgfP0f. As for the worm-gear drive used to turn the tools, that was produced by our team in Switzerland. They have an identical unit they use for their own testing. We liked it so much we purchased one from them for our own use!
As David mentions in the video, we clamp a test pin with a hex head in the toolholder. This hex head interfaces with the Gedore meter. When David turns the wheel it turns the holder, which forces the hex head of the pin to turn the meter interface and increase the value shown. The meter stops recording the value once the pin in the toolholder "slips" and spins within the toolholder. What that means is that gripping force was lost at the recorded torque, showing the value at which the tool slipped.
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