EDM [MH20M]
BETSA® Motorized Electric Discharge Machine
The Motorized EDM [MH20M] has been designed to drill the tiny holes in any conductive gasket material required by the operation of Diamond Anvil Cells (DACs).

Specifications
Drilling diameter from 20µm to 500µm.
Centring accuracy < 5µm.
Drills in any conducting material Stainless steel, rhenium…
Fast drilling dia. 40µm /minute for a dia. 200µm hole in a stainless steel gasket
Centering microscope (x 400) (x200)
Observation microscope (x 50) (x100)
Weight 12 kg
Size 19 cm wide., 33 cm deep., 42 cm high.
• Easy to operate
• Possibility to change the polarization and to tune both the voltage and the current: to optimize drilling performances as a function of gasket material, thickness and hole diameter.
• Motorized drilling: the voltage between the electrode and the gasket feeds back to control the movement of the vertical table.
Visualization during the drilling
No need computer or camera software have be update





Rotating head rotates 90 ° to change from centering visualization position to drilling

Abrasive tool for electrode used in MH20M spark eroder
Their deformation over time makes conical holes.
Our electrodes very easily repositionable can be sanded with this tool to improve the electrical contact plane and the shape of the cylindrical hole, easy no!
– The tungsten top of the electrode is guided in a Ø500µm hole.
– The electrode is always perpendicular to emery cloth.
– About 10 to 20 seconds to repair an electrode.
The abrasive tools have been designed to facilitate the repair (with emery cloth) of used and worn MH20M electrodes.
The quality of the repair does not depend on the dexterity of the user. There is no risk of destroying (folding or folding) the tungsten part of the electrode.





ELECTRODES
from 60μm to 530μm by controlling the electrode voltage.
A needle is used for drilling from 10μm to 50μm.
Electrode Needle radius 2µm.
Electrode Ø
