Rotary Airlocks are designed for maximum volumetric efficiency with low air leakage. Rotors are open ended to avoid jamming. Bearings mounted in outboard housings that are self centering type ensure repeat alignment during maintenance. Rotor tips are adjustable to get a longer effective rotor life. A number of combinations of casing / rotor material of constructions like MS/MS, CI/MS, SS/SS is offered to suit different applications.