Power Chuck Recommendation for Hardinge Cobra 42

StickShifter · Jan 28, 2020

Greetings,
I recently acquired a 1997 Hardinge Cobra 42 that is great shape. The original owner only used it for small parts and only used collets. While that worked well for him, I think I will need a chuck for some of the odd ball stuff I want to make.

So, are there any recommendations for a chuck that won't break the bank? This is my first CNC lathe and not sure what features, brands, or styles I should be looking for. I do know that it is an A2-5 mount. The Hardinge recommended chucks are HM-306 and HM308-5. Is it worth it to get the 8" over the 6"?

Thanks,
Kevin

Hardplates · Jan 28, 2020

Depends on there work you are doing but I general try to run the smallest chuck that I can. Almost all my chucks are Kitagawa, no complaints.

SDConcepts · Jan 29, 2020

if you do a lot of 8" work, the cobra won't have enough torque to really push in harder metals at the large diameter. I've stalled my spindle plenty of times. 6 in and under works pretty well on the cobra

StickShifter · Jan 31, 2020

Thanks. Not a production shop so no need to push too hard. 90% of the work will be in aluminum. Just thinking the 8" would allow more holding options.

Do I need to find a specific chuck style that will work with the Hardinge draw tube?

Ox · Feb 4, 2020

For lack of anyone else piping up:

I would think that you would likely need to make some sort of adaptor to mate the two - no matter what'chew git.

Just so long as it doesn't have a stem sticking out the back that is too big to fit in the spindle bore and not be able to be removed is all.

----------------------

Think Snow Eh!
Ox

Search

Largest Manufacturing Technology Community on the Web

Search

Power Chuck Recommendation for Hardinge Cobra 42

StickShifter

Plastic

Hardplates

Stainless

SDConcepts

Stainless

StickShifter

Plastic

Ox

Diamond

Similar threads