Our rotary air lock is built in Canada and is designed to efficiently transfer non-stringy materials from one air system component to another, ensuring maintenance of a required vacuum or to prevent pressurization.

The air lock maintains a tight, positive air seal by keeping a maximum of the six flexible neoprene steel backed wipers in full contact with the interior housing at all times.

The neoprene wipers are bolted to the vanes of the rotor tips for ease of maintenance.

The rotors are open-ended. The rotor housing is heavy-duty steel construction with a removable side plate to provide easy access and maintenance of the rotor.

The MacDonald Steel rotary air lock is manufactured in Canada, in a range of sizes. All packages are supplied complete with drive motor package to suit your displacement requirements. Optional zero-speed sensor package is also available.