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Gold Line

A4 STONE is a milling machine equipped with a set of accessories for the finishing of primary elements made of ceramic materials (sintered zirconia, zirconia implants, alumina, metal free all-ceramic).
A turbine with water cooling, to avoid micro-fissures in the ceramic materials, and an innovative water collect system allow to work safely protecting all the elements of the machine.

 Why choose A4 STONE
  • To leave doors open to the future in case the exigencies of working traditional materials would become more pressing.
  • For its water collecting system that avoid any possible damage of the structure

Allowed techinques
  • free hand ceramic milling
  • ceramic elements finishing 

Air turbine with feeder
A turbine with water cooling, to avoid micro-fissures in the ceramic materials. Provided witn pneumatic pedal allowing an easy start and stop of the turbine engine.


TAP draining model holder
Draining model holder provided with three protecting rings that avoid the water's spillage.

Mandrel for attachments assembly and surveying
Accessory incorporated in the movable arm of the machine and coaxially positioned to the micro motor. This makes the attachments assembly and the surveying simultaneous and precise.


Adjustable supporting table
Support of the working plane with high excursion that allows working also on high models.


MULTI-PIN draining plate
Provided with special holes that grant a simple and effective water collection.

Integrated spotlight Adjustable lighting system of the machine that improves the tri-dimensional perspective of the model without shadows. Being not reflective it is less tiring.

Air turbine with spray
Hydro pneumatic feeder
Draining model holder TAP
• Pneumatic pedal
• Universal mandrel
• Complete porta-chuck nut ø 1,6 mm
• Protection rings
• MULTI-PIN draining sliding plate
• Water draining pipe
• Water collecting vessel
• Water draining pipe
• Accessories holder
• Slideways oil



A4 IRON set
A set of eccessories including an electrical micro motor (with complete porta-chuck nuts ø 2,35 – 3 – 1,6 mm), digital electronic feeder with adjustable speed, electrical pedal, lockable model holder to allow all workings on traditional materials.

Led lamp
Stand-alone device for a shadow-free illumination.

A4 STONE - Gold Line

Worked materials
Zirconia ***
Technical data
Machine dimensions (mm) 320x300x470
Machine Weight (kg) 24
Dimensions hydro pneumatic feeder (mm) 220x170x210
Weight hydro pneumatic feeder (kg) 3,5
Turbine speed (rpm) 0÷300.000
Turbine pressure (bar) 2,8÷3,2
Turbine air consumption (l/min) 40
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