carbide platen

lukusamongus said:
There was a thread here last month that went a few pages about carbide platens. The carbide platens are 2in x 8in x 3mm thick. You put a couple pins or some kind of ledger at the very bottom of your existing platen to take some of the strain and then attach the carbide platen using double sided tape. Everybody says the tape works great, but I would really want to put a couple holes in the carbide for #6 or #8 machine screws. Besides never having to worry about tape holding, you'd get better heat transfer from the carbide with direct contact.

My belt grinder is an old Burr King that's been apart for the last couple weeks for refurb (new bearings, motor capacitor, etc.). Will probably be another week or two to get it back together. Haven't ordered a carbide platen yet because I want to make sure I can make it work with the burr king design first. I have looked for a local machine shop (Austin, TX) that does EDM, but no luck so far. Don't really want to spend as much or more than the platen itself for a couple flat head screw holes.

Here's the thread:
Tom Lewis

Thread 'carbide platen'

I have had a lot of experiences with platens. I sold my first knife in 1980 and at that time used the steel platen that came with the Square Wheel Grinder. Sometime after that I started using a graphite type material on the platen. That worked well but didn't last very long. Then I heard of tempered glass and have used that with great satisfaction. Then I heard of the carbide platen and decided to try that.
I am really impressed. I use the flat platen to taper tangs and to sand blade flats. I have tapered several tangs on the carbide platen and it cuts faster, smoother, and with...
  • Like
Click to expand...
So far i already sold a couple hundred of platens with the 3m tape.
So far only like a handfull that have failed and let loose.
I think those failed because they just got way too hot, or did not degreased them good when mounting the platen.

The setscrews underneath will hold the platen in place in case of the platen come loose and for making sure not all the force will be on the platen/tape.

What length is you platen on your burr king?
If its 8” you can get a carbide for it and whenever you upgrade to a better grinder you can put the carbide on the new grinder aswell.
Most common length of platen is 8”.
 
You must log in or register to reply here.
Back
Top