DLCNC logo of Chengdu Jindali TechnologyPCB Drilling and Routing
Industry Application

Solder Mask Exposure

Solder mask exposure decides how the finished board looks and how well it survives assembly. The exposure unit is often the oldest machine on the line and the first place energy cost shows up.

UV LED exposure machine for PCB solder mask photographed at the DLCNC factory

Industry Pain Points

  • Long exposure time holding back the throughput of the whole wet process line
  • Energy consumption and lamp replacement cost on traditional light sources
  • Uneven exposure energy across a large frame causing localised scrap
  • Different ink colours needing different exposure setups

What Buyers Ask For

  • A cold light source that does not need warm up time
  • Energy uniformity high enough to treat the whole frame as one
  • Double side exposure to avoid a second pass
  • PLC control with a touch screen the operator can actually use

Typical Application Scenarios

Mixed ink colour production

White green blue and black ink are all listed for mass production on this machine.

Thin and thick board handling

PCB thickness from 0.075mm to 3.2mm on the same machine.

Fine line solder mask

Line resolution of 50μm with energy uniformity above 92 percent.

Energy reduction projects

LED lamps imported from America are power saving with a long service life and a three year warranty.

Solution Process

Confirm the frame size

E760D E1200D and E1500D cover different frame formats. Give us the largest panel you expose.

Confirm the optical stack

Mylar and glass or glass and glass depending on the work.

Check the utilities

AC 220V 20A three phase four wire with room temperature at 20°3°C and humidity at 55°5 percent.

Install and validate

Exposure energy is validated against your ink and film before the line is released.

Delivery Capability

  • ISO-9001 quality certificate obtained in 2012
  • National High Tech Enterprise approved by Sichuan provincial authorities
  • Patented auto pin insert function for PCB routing machines granted November 2019
  • Joint Intellectual Equipment Technology Research and Develop Center with Xihua University
  • Three service stations covering South China East China and North China
  • Member of HKPCA exhibiting at the Shenzhen international circuit exhibition
Open The Trust Center
Questions and Answers

Solder Mask Exposure FAQ

Is this a single or double side machine
Double side with a double exposure frame and double exposure mode.
What line resolution is supported
50μm.
How is the machine cooled
Air condition cooling which also reduces the cooling time between cycles.
What environment does the room need
20°3°C and 55°5 percent relative humidity.
Next Step

Send Us the Process Not Just the Machine Name

Describe the operation you are trying to hold and the numbers you have to hit. We will come back with the machine and the specification that supports it.

CAD and drawing files are accepted on request through WhatsApp or email. No form to fill in.