Why MAS Air Systems
MAS Air Systems, LLC, is a full service fan manufacturer with a complete array of centrifugal fan designs and a specialized line of high temperature axial propeller fans. We excel at custom fan applications involving high temperature, corrosion, alloy construction, erosion, gas tight construction, high tip speeds or special configurations.

MAS is highly skilled in the repair and retrofitting of our own or competitors equipment.

Our staff has over thirty years of design, engineering and manufacturing experience in the fan and steel fabricating industries. Our expertise, size and facilities allow us to manufacture quality fan equipment at competitive prices to suit your particular needs. We manufacture fans from 8” diameter up to 150” diameter, in 5-ton and 10-ton capacity bays having up to 20 feet under hook.

Our facilities are fully equipped to fulfill all fabricating and machining needs. Our state of the art plasma burning table with oxy/acetylene has an adjustable water level, cut alloy, and stainless thru 1" thick and carbon steel thru 4" thick. The air scribe and arc writer allow us to accurately layout details on burned parts and code our materials. Press brake, 1/2” shear, heavy duty power rolls, dynamic balancers, laser alignment and portable balancer, sand blasting equipment along with all the related welding and forming equipment round out the inventory of equipment.

MAS follows a custom in-house Quality Control program proven efficient through years of experience, and has been approved by many MAS customer inspectors. We have AWS D14.6 certified welders and documented weld procedures that are used on all MAS fans, not just when specified by customers. NDT checks such as dye penetrant, mag particle, x-ray, ultrasonic and Helium mass spectrometer leak tests are routinely performed by both in-house personnel and independent testing services. Fans are constructed from mild steel, high strength alloy steels, aluminum, 300 series stainless steels, inconel and incoloy, hastalloy, titanium and most exotic alloys. Special paints and coatings like rubber lining and epoxy are no problem for MAS.

MAS offers a full service Field Service Department for fan startup and trouble-shooting. We also have the flexibility to repair or rebuild any fan manufacturer's equipment. Our trained personnel can field measure a fan, or we can arrange to have a unit sent to our shop for duplication, and in turn provide completed assembly drawings to our customer.

When rebuilding or repairing, fans can be upgraded for higher capacity, improved efficiency or longer life with less erosion or corrosion.