PWS Series – PCB Wet-Chemical R2R Stripping

Roll-to-roll (R2R) strippers of the PWS Series remove the remaining dry or wet film photoresist on the circuits. Our strippers are matched with developing, etching and tin stripping processes and comprise following process steps: unwinding and winding, stripping, water and acid rinsing as well as drying.


  • Equipped with automatic control system to guarantee stable process parameters
  • 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 even and straight rolling
  • Excellent design of residue filter unit to minimize film residue leftover
  • Sloped-bottom tanks for chemical processes to minimize solution leftovers and load on wastewater treatment after rinsing


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

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.

Back to overview