By virtue of its name, cleanrooms control the level of particle contamination present that can potentially degrade the products being manufactured. Cleanrooms are classified according to the number and size of the particles permitted per volume of air. For example, a Class 10 cleanroom denotes that no more than ten particles of 0.5 µm or larger and zero particles of 5.0 or larger are permitted per square foot of air. Contaminants can be generated by people, process, facilities and equipment. In order to control contaminants, the manufacturing cell and in many cases the entire room must be controlled. Robots used in this environment must meet stringent cleanroom certification requirements to prevent them for acting as a source of contamination.
Adept Viper 850CR: Six axis cleanroom robot
As a matter of practice, materials prone to particle generation are substituted or coated to eliminate the potential for contamination of the manufacturing area and ultimately the components being processed. Depending on your application, cleanroom robots can be linear, SCARA, six-Axis or delta/parallel-type robots but they all must meet strict cleanroom certifications.
External harness example