The machine relies upon a vertical tube with an impeller at the bottom, which is immersed in the etching mordant. When the spray tube is rotated at speed the impeller induces the etching mordant to rise inside the tube. The sides of the tube are drilled to allow the etching solution to escape in a fine spray on to the surface of the plates to be etched, which rest against the inside walls of the machine.

The speed of etching depends upon the strength of the etching mordant and the force with which it hits the plate surface, as well as the time the plate is in the machine. The high speed of the spray tube ensures ideal etching conditions.

Optional Extras
Titanium Heater