Cleanroom Passboxes/ Pass through hatches
Pass box is a kind of facility, which is located in the partition walls of cleanroom or adjoining walls to the cleanroom. Its function shall be a buffer area for transferring goods between inside and outside of cleanroom so that to prevent any disturbance of airflow and air pressure in cleanroom, which caused by the door opening for goods transferring i.e. it is installed on the wall between two rooms to minimize contamination during transportation of materials. Furthermore, it can reduce the time for operators moving in and out, to prevent any dust coming from the out regions. That’s why there is one interlock guard system controlled the inlet and the outlet of passbox not to be opened at the same time, in order to prevent cross-contamination. Air Shower Pass Box Clean Auto Pass box consists of double automatic sliding doors, Hepa Filter, fan, and roller conveyor. Transportation of materials can be done automatically by these units from one room to another.