Jet-Blast holes in regular and shrink fit end mill holders

[?Mark]

I'm ordering a package of 150 tools...I'm leaning towards getting them all with jet-blast holes...

20k cat40 spindle

Anyone has anything NEGATIVE to say about this coolant delivery system?

http://www.gohpi.com/Tool-Holders/end-mill-holders

 

 

Again...any and all opinions are welcome

 

TIA

[GoetzInd]

We have some regular HPI EM holders with jetblast and have had good luck with them. No experience w/ shrink though.

 

Mike

[robk]

Nothing negative about it IMO.

We have been using Techniks shrink fit CoolBLAST for quite some time.

http://www.techniksusa.com/metal/pthsf_coolant_c50.htm

[The Cathedral]

We use the Techniks holders as well. Love 'em. Really, once you have them you'll wonder why you ever did without.

[specv]

If you have 1000 psi they work  great, we only have 300psi in our older machines and the coolant fans out at high rpm. It actually hinders the coolant from around the spindle from getting to the tool.

[cincy k]

HPI set screws in their end mill holders suck. The holders themselves are nice. You'll want to replace the screws. 

 

Are you using all end mill holders at those higher RPM?

[?Mark]

Cincy,

I might end up using few regular holders in smaller diameters at high rpm, but mostly shrink fit will be dedicated for max rpm...

Having said that, I've been running their regular holders at 14k for a long time with no issues. I'm extremly happy with them.

They (hpi) used to make lyndex/nikken tooling for years...

[jeff]

If you have 1000 psi they work  great, we only have 300psi in our older machines and the coolant fans out at high rpm. It actually hinders the coolant from around the spindle from getting to the tool.

We have 500psi... zero issues.

They work great

[?Mark]

All good info, Thanks everyone!

 

<cheers>

[cincy k]

Mark,

 

Cool. With the addition of our 20k spindle I have noticed a substantial difference from an end mill holder to shrink particularly roughing at those higher RPM with small tools. (5/16 and below) I just finished a run of aluminum parts where I ran a 1/4" roughing tool in various different holders to see where the differences might be. The clear winner was shrink. Ran a Pioneers SX, Fahrion ER, Lyndex EM holder and Haimer shrink.

[?Mark]

Thanks!

I'll be playing with the exact machine you have very soon...

[dstryr]

HPI set screws in their end mill holders suck. The holders themselves are nice. You'll want to replace the screws. 

 

Are you using all end mill holders at those higher RPM?

I agree with this. The smaller ones are crap. Might as well throw them away as soon as you take the holder out of the tube.

[?Mark]

cicni,

what pull studs did you pick? I'm between command and pioneer/hpi

 

tia

[cincy k]

For a 20k Matsuura use the reccomended one from JM Performance products!!!!!!!!!!!!!!!! Their high torque version. It is ground to a tighter tolerance than normal versions of that stud and what Matsuura highly reccomends. Look in the pre installation paperwork for it. JM51023HT.

[?Mark]

51023HT is $46.18

51023 HI TORQUE HI STRENGTH is $58.18

 

Ouch!

 

Darn it...I forgot, James recommended JM as well

[cincy k]

That's waaaaay more than I pay for them.