What are some differences in modules for your Nordson Applicator?
Do you need one that is air open/spring closed (AO/SC)? or
Do you need one that is air open/air closed (AO/AC)?
What is the difference?
It all depends on the speed of your application. If you need a quicker cut off because your substrate is moving at a high speed, you may need the AO/AC module. Air closes the piston needle much faster than a spring.
For standard case and carton sealing, the less expensive AO/SC will work.
Please let me know if you have further questions regarding the workings of our modules.