Haas Super Mini Mill - Controlling the Coolant Blast

Hoppy · Nov 14, 2021

My Haas Super Mini Mill has the Programmable Coolant option. The problem is that in many cases the coolant ricochets of the part and carries chips up into the umbrella tool changer. Some of these chips stick to the tapers of the toolholders and prevent a proper fit into the spindle. I end up with erratic cut depths and tools that don't run on center. I end up having to constantly stop the machine to clean the toolholders and the spindle - what a waste of time! Has anyone else had this problem? Is there a way to decrease the coolant pressure?

plastikdreams · Nov 14, 2021

There should be a valve inline with the coolant assembly

D Nelson · Nov 14, 2021

Bring it around from the other side of the spindle
Don

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Hoppy · Nov 14, 2021

plastikdreams said:
There should be a valve inline with the coolant assembly

No valve on the discharge side of the pump except for a check valve to prevent backflow.

Hoppy · Nov 14, 2021

D Nelson said:
Bring it around from the other side of the spindle
Don

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Programmable coolant location is fixed and cannot be relocated without extensive modifications to the machine.

mmurray70 · Nov 14, 2021

Hoppy said:
No valve on the discharge side of the pump except for a check valve to prevent backflow.

Add a simple ball valve inline. Adjust it to get the flow you want.

D Nelson · Nov 14, 2021

Hoppy said:
Programmable coolant location is fixed and cannot be relocated without extensive modifications to the machine.

The end nozzle screws off put a piece of copper tube on it and bring it around
Don

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Hoppy · Nov 15, 2021

D Nelson said:
The end nozzle screws off put a piece of copper tube on it and bring it around
Don

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That will get it tangled with the tool changer.

D Nelson · Nov 15, 2021

Hoppy said:
That will get it tangled with the tool changer.

Stay above the tool changer height

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mhajicek · Nov 15, 2021

Ditch the P-Cool and use a fan shaped coolant nozzle. It'll spray the coolant in a line along the tool, effective for a wide range of tool lengths, and not spray so hard as to splatter chips up at the umbrella.

13engines · Nov 15, 2021

mmurray70 said:
Add a simple ball valve inline. Adjust it to get the flow you want.

This is thee answer and the simplest to install. I personally have never owned a machine tool that didn't have a ball valve installed in the coolant line somewhere. Be it right at the pump to right before the nozzle.

Programmable coolant nozzles are something I won't live without. Set once per tool and done. Don't let a little errant over-pressure ruin their effectiveness and your tool carousel... and your day. :-)

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Haas Super Mini Mill - Controlling the Coolant Blast

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