Technology · April 16, 2026 · 1 min read

Danfoss unveils an oil-free centrifugal compressor on R600a at MCE 2026

A cooling revolution: how Danfoss’s new oil-free compressor using the natural refrigerant R600a is changing the game for large air-conditioning systems and data centers.

Danfoss unveils an oil-free centrifugal compressor on R600a at MCE 2026

Premiere at MCE 2026

At the Mostra Convegno Expocomfort (MCE) 2026 exhibition in Milan, Danfoss, a corporate member of the International Institute of Refrigeration (IIR), presented the new Turbocor TNS385 centrifugal compressor, developed specifically for the R600a (isobutane) refrigerant. The development is intended for large-scale cooling systems—air-cooled chillers for comfort air conditioning with a rated capacity of 385 kW. For data center applications, capacity can increase up to 500 kW by raising the chilled water temperature.

Oil-free design with magnetic bearings

The compressor is equipped with magnetic bearings, ensuring fully oil-free operation. This approach provides several key advantages:

  • ✅ Minimizing friction
  • ✅ Reduced maintenance costs
  • ✅ Eliminating performance losses typical of traditional lubrication systems

Natural refrigerant and environmental focus

The design makes it possible to efficiently use a natural refrigerant with low environmental impact, underscoring the industry’s shift toward sustainable technologies. The development reflects growing regulatory pressure on synthetic refrigerants and interest in low-carbon alternatives, especially in sectors such as data centers.

Field trials and market launch

The compressor is currently undergoing field trials in a pilot project in Europe. The commercial launch of Turbocor TNS385 is expected in the fourth quarter of 2027.

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