Page 439 - Hartner

The Coolant delivery

Every Multiplex holder is equipped with an internal coolant system guaranteeing an optimal delivery of the coolant or the
lubricant respectively to the cutting edges during horizontal as well as vertical drilling operations and subsequently improving
tool life. In addition, the coolant ensures an optimised chip evacuation from the hole.
The type of coolant delivery is dependent on the shank design:

Coolant delivery bore on the end face of the shank
For static and rotary tools:
Axial coolant delivery through the tool holder.
For straight shank holders and hole-Ø 10 to 102 mm.
Holder product no. 86612/86622/86624/86730/86740/86750
and extra length holders

Coolant delivery bore on the surface of the shank with delivery chuck
For rotary tools:
Radial coolant delivery through the coolant delivery chuck.
For straight shank holders and hole-Ø 10 to 102 mm.
Holder product no. 86612/86622/86624/86730/86740/86750
and extra length holders
Coolant feed chucks SK40/50 and Morsetaper MT4/5/6 to cyl.

Coolant delivery bore in tang
For static and rotary tools:
Axial coolant delivery through the tool holder.
For Morse taper holders and hole-Ø 10 to 25 mm.
Holder product no. 86630/86650

Lateral coolant delivery bore on Morse taper
For static tools:
Radial coolant delivery through the tool holder.
For Morse taper holders and hole-Ø 10 to 25 mm.
Holder on request

Lateral coolant delivery bore at seat of collar position
For static tools:
Coolant delivery via direct hose/pipe connection
with thread R1/4" and R1/2". For Morse taper holders with
seat for delivery collar for hole-Ø 25 to 102 mm.
Holder product no. 86670/86680 and extra length holders

Lateral coolant delivery bore at seat of collar position
For rotary tools:
Radial coolant delivery through the delivery collar. For Morse taper
holders with collar running face for hole-Ø over 25 mm.
Holder product no. 86670/86680 and extra length holders

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