Why are most MBA blast cabinets built standard with only one door?
There are three very good reasons. Repeated observations over the last thirty years show that nearly all blast cabinet operators use the right side door only for loading and unloading. The exceptions are usually operations that require a pass through system to another workstation. The second reason stems from the general physical characteristics of people. About 90% of the world’s population is right handed. Therefore, it is safe to assume that about 90% of blast cabinet operators are right handed, too. Right-handed blast operators typically blast with the nozzle angled (more or less) towards the left. If there is a door on the left side of the cabinet, extreme stress is placed on the door seals. In a relatively short period of time, the door seal will fail. Abrasive and dust will escape from the cabinet through the failed door seal. This problem is usually alleviated by frequent replacement of the door seal, duct taping the door to prevent dust and abrasive release or welding the door
