What taper is on this boring Erickson 50 boring head?

[rodm1]

Anyone have an idea what taper is on this Erickson 50 boring head or how to remove the adapter? I need to figure out a way to use this in a RongFu RF30.

 

[Janger]

Is there a screw down in there from the top? No idea what that is. It’s not cat40, cat50, R8. Is it a BT something? Before you commit how much are the inserts? It may not make sense to use it. Or does it hold boring bars? More pictures…

 

[rodm1]

No idea yet its in the mail I'm thinking a adapter may work or just turn it down. I hope it can be removed we will see. It must be removable according to the link.

ERICKSON No. 50 TENTHSET BORING HEAD mill milling bar holder tool 2 1/2 OD

boringbarholder.com

 

[Rauce]

Looks like an old quick change taper.

 

[kstrauss]

I have two Erickson tenthset heads (#37 and #50) and both have a screw shank with female threads in the head. A little torque and they easily unscrew.

 

[rodm1]

I have two Erickson tenthset heads (#37 and #50) and both have a screw shank with female threads in the head. A little torque and they easily unscrew.

How hard are they to take apart to clean?

 

[kstrauss]

I don't believe that I've had my #50 apart. The #37 requires removing two button head screws (#6-32 as I recall) that hold the bottom cap to the body. It then just comes apart. There are many small parts inside including several tiny springs so pay careful attention and maybe take some photographs!

 

[rodm1]

The tool holder is a MOOG Hydra-point.

 

[Janger]

How do you know that @rodm1? I looked that up and discovered yet another machine tool I’ve never heard of. Have you used one of those?

 

[rodm1]

How do you know that @rodm1? I looked that up and discovered yet another machine tool I’ve never heard of. Have you used one of those?

I stumble across the tool holder on Ebay with the name of the mill that it fit. Never used one but have used some very old relics. I think most of these machines are dead but the tooling still lives at least on Ebay.