PWD Series – PCB Wet-Chemical R2R Developing

Roll-to-roll (R2R) developers of the PWD Series completely remove dry films, wet films or ink which have not been exposed. Our R2R-developers for the production of FPCs are matched with stripping and etching processes and comprise following process steps: winding and unwinding, developing, (descum) rinsing and drying.


  • Excellent resolution capability, no residue of dry or wet film
  • Equipped with automatic control systems to ensure longest uptime
  • Single-track or double-track conveyor can be selected according to production capacity and process requirements


  • Modularized design: tension or dancer rollers can be selected according to the process requirements to avoid deforming
  • Robust body structure to maintain parallel position of rollers during long term operation
  • Superior Edge Position Control (EPC) to ensure an even and straight rolling
  • Developing section disposes of excellent defoamer technology
  • Sloped-bottom and small-volume tanks for rinsing processes to improve tank replacement rate by 50 %


Specifications of substrates:

Panel width:

250 – 600 mm (can be customized for different sizes)

Panel thickness:

12.5 μm – 25 μm or thicker

Dia. of through hole:

min. 0.1 mm A/R 10:1

Dia. of blind hole:

min. 0.075 mm A/R 1:1

Resolution capability:

25/25 μm

R2R performance:

Normal operating time (uptime):

≥ 95 %

Mean repair time (MTTR):

4 h

EPC permissible edge alignment:

± 0.5 mm

Low-tension control:

5 N – 30 N


Additional data available on request.

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