Z axis unit

Microlab ISO 40 spindle cartridge.

Model NPRG4 8000 RPM ISO grippers dual bearings.


The spindle unit is ordered with a surrounding coolant unit.

This means that the coolant is sprayed from all directions to the toolholder.

The spindle has a redesigned blocking mechanism now with a 4 edged disc.
With a 608 bearing pushed in the slot, you can lock it.
If you lock it while turning, it can jump out without any damage. 

The new Z Axis assembly designed in Alibre Design Pro.

First impressions of the Z axis assembly.

Lenze motor with the fins shortened and rear axle fan part shortened.

Lenze motor with coolant jacket test fitted.

Key slot milled with the Saarloos/Eding Macro's

(basic Marco to be downloaded on the CNC area)

The key installed

Perfect fit!


Pre assembly of the milled parts before heat treatment.


Making the backplate flat on the machine.


Overview of the welds.


Close-up of the welds


Leveling and grinding manually.


Finished grinding.

   To be continued...