I'm trying to build a small pick and place system using a suction cup and a 12V vacuum pump. The problem I'm having is that I'm not getting a good enough seal between the cup and the object, and I read that it could be improved by increasing airflow. I've also read that placing pumps in parallel can increase airflow, but is there a limit to the number of pumps that can be placed in parallel? Would the pumps overheat as a result of using too many pumps in parallel? The pump I'm using has a datasheet vacuum pressure of -0.08Mpa and an airflow of 16L/min. The pump itself is composed of 2 pumps in parallel.
Any advice appreciated.