Under funding from DOE Award DE-FE0031148, Mohawk Innovative Technology, Inc. (MITI) has successfully developed, integrated and tested a prototype ultrahigh speed oil-free blower for use as an Ultra High Temperature Anode Recycle Blower (UHT-ARCB) in a 100 kWe Solid Oxide Fuel Cell (SOFC). MITI?s recycle blower design is hermetically sealed, and features a completely encapsulated permanent magnet motor, which allows it to handle the steam-rich anode recycle gas mixture. At the SOFC?s nominal operating condition, the MITI ARCB rotates at approximately 55000 rpm, raises the pressure of the incoming 621 �C gas from 104 to 112 kPa, and uses less than 1.2 kWe at a rate of approximately 30 g/s. The UHT-ARCB?s thermal management uses the incoming natural gas supply for the SOFC as cooling medium for bearings, seals and motor magnet, along with a water jacket for motor housing cooling to prevent the high temperature gas from affecting the bearing/motor assembly. MITI?s development of this UHT-ARCB will contribute to a reduction of cost and overall balance of plant (BOP) of SOFC systems. The UHT-ARCB recirculates a fraction of the depleted anode exhaust to the fuel-cell inlet. Direct recycling of anode off-gas takes advantage of the water already present in the stream to assist the methane reforming process and inhibit carbon deposition, without the need for an external water supply.