Industrial Utility Efficiency    

Mann+Hummel Introduces StarBox Series of Air/Oil Spin-on Separators

Clean air, energy and resource efficiency, reduced operating costs and predictive maintainance through digital components. These are the benefits offered by the new technologies presented by the filtration specialist MANN+HUMMEL. The focus of the developments in the industrial business is on filtration, systems competence and proximity to customers worldwide.

Mann Hummel Star Box

The StarBox² is designed for low pressure drop

StarBoxXT and StarBox2 are the new spin-on separators from MANN+HUMMEL for air/oil separation of compressors. The separator series ensures clean compressed air and at the same time reduces the energy consumption of the plants. The new series are

  • StarBoxXT for superior separation efficiency and
  • StarBox² for particularly low pressure drop

Both separators are designed for a wide flow range in order to make their advantages available over the entire working area even in compressors with a Variable Speed Drive (VSD). 

The StarBoxXT is the new standard series. It offers a stable and reliable function in different operating ranges as well as a reduced oil consumption by approximately 30 percent. Energy-saving compressors with variable drives are also optimally supported. MANN+HUMMEL has developed a new sealing concept for a secure maintenance. Scratching of sealing surfaces with subsequent leakage or shearing of sealing elements during filter replacement is excluded by the design. The new StarBoxXT series can be used directly on existing compressors and is immediately ready to perform with all its advantages. 

The innovative StarBox2 offers decisive advantages in relation to energy consumption. MANN+HUMMEL developed the spin-on separator series especially for stationary and mobile compressors up to a performance of approximately 55 kilowatts. The StarBox2 reliably separates the oil from the compressed air while managing to reduce the power consumption. This allows StarBox2 to impress in comparison to other spin-on separators with a pressure loss which is up to 25 percent lower. This is made possible by an improvement in the flow characteristics in the connection area and a new sealing concept. At the same time they improve the assembly safety. 



MANN+HUMMEL is the leading global expert for filtration solutions. The company group with its headquarters in Ludwigsburg, Germany, develops solutions for motor cars, industrial applications, clean air in interior spaces and the sustainable use of water. In 2018 the group achieved sales of approx. 4 billion euros worldwide with more than 20,000 employees at more than 80 locations (preliminary figures). The products manufactured by the group include air cleaner systems, intake manifold systems, liquid filter systems, plastic components, filter media, cabin filters, industrial filters and membrane filters.  Further information about MANN+HUMMEL is available at