SIZING VACUUM PUMPS AND RECEIVER TANKS
Correctly sizing vacuum pumps and receiver tanks for specific applications is critical to proper function. Vacuum pumps generate the vacuum level within a defined volume that is the receiver tank. Vacuum level is measured in relation to ambient atmospheric pressure and reported in units such as Torr, inches of mercury (“Hg), Pascals (Pa) or millibar (mb).
The critical feature of the pump is the speed at which it can evacuate a volume of air down to a particular vacuum level as measured by average cubic feet per minute. If the pump is too small, it will not be able to achieve sufficient vacuum within the shot cycle. If the tank is too small, it will not provide a sufficient reservoir to evacuate air from the cavity. Midland Technologies can calculate the required pump and tank size for your specific casting application.