Photo Chemical Milling

Since the 90s, SCHMID has collected the required expertise for all types of etching applications. Combined with our high manufacturing standard this forms the basis for the highest quality and
precision of our systems – and this at the best price-performance ratio.


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Etching is a very important part in the PCM process. For instance, it needs to be considered how metals will be processed and which technical requirements are necessary according to the design and the application of the manufactured product. Furthermore, details as the type of chemicals, line speed, process time or transport system determine the advanced SCHMID etching machine layout.

High etching quality

The fine line spray manifold allows for a high etching factor with smaller tolerances. Precise etching results and a uniform spraying pattern are achieved.

Option: individualized module configuration

To create an individual process sequence the etching modules can be combined with modules of the entire line system in a customized configuration.

Additional Options:

  • Exhaust condensor system
  • Drip pan
  • Solution transfer tank for waste water
  • Different systems for process control (pH, redox, density and conductivity sensor etc.)
  • Advanced tank and dosing systems and continuous process control
  • Suitable for products with substrate on one side and a metal layer either on one side or both sides
  • Suitable for etching right through solid metal
  • Selective etching of structured surfaces with varying depth
  • Can be used with different types and thicknesses of metal
  • Various etchants are used, depending on the metal to be processed
  • Flexible transport systems which can be adapted to various panel materials and thicknesses to optimize the processing of sensitive surfaces
  • Transport system suitable for roll-to-roll applications and for use with a transport net
  • Gentle transport, special handling and adapted process support to ensure a consistent execution of the production process

Features:

  • Working width: 650 mm
  • Working height: 900 mm
  • Conveyor speed: 0.1 – 3.0 m/min (option: 0.2 – 6.0 m/min)
  • Transport system: Standard Transport (option: Flex Transport)
  • Panel thickness: 0.3 – 6.0 mm (option: 0.05 mm – 3.2 mm)
  • Panel size: max. 610 x 610 mm, min. 250 x 250 mm (option: min. 50 x 80 mm)
  • Spray manifold: 4-fold staggered, Oscillation spray manifold
  • Control system: PLC controlled
  • Dosing system: Process control based on various sensors available