Clean linear actuators come in three classes

HaydonKerk Motion Solutions' Haydon specialty Clean Linear Actuators are available in three different class levels. Designed for contamination sensitive applications and environments within systems under high vacuum, the motors limit contaminants and out-gassing in vacuum environments.
By STAFF Control Engineering July 9, 2009
Clean liner actuators come in three classes
HaydonKerk Motion Solutions’ Haydon specialty Clean Linear Actuators are available in three different class levels. Designed for contamination sensitive applications and environments within systems under high vacuum, the motors limit contaminants and out-gassing in vacuum environments. Provided that the motor operates below its rated maximum operating temperature, they will survive in a vacuum down to 10-8 Torr.

Clean Motors are constructed of non-volatile materials and vacuum-baked to extract contaminants. Available in three different levels, Clean Linear Actuators operate according to a class number which indicates the level of intensity in which the actuator will be cleaned.
www.HaydonKerk.com
HaydonKerk Motion Solutions