Axle with a free vertical linear way

Accessories for milling spindles:
The milling and engraving spindles are supported by precision bearings which allow a vertical linear way. The tool fixing includes also a plastic sliding block which is sliding on the material. The vertical pressure is produced through itís own weight and can be increased or decreased by an additional spring. The engraving depth can be exactly adjusted by turning of a scale ring in a precision spread. The engraving needle is protruding from the plastic sliding block by as much as the adjusted measurement. The up and down movement of the tool is carried out by the Z-axle motor or pneumatically.
For this working process the use of dust suction is necessary.