Main benefits
  • 100% oil-free, environmentally friendly and safe
  • High efficiency, low life cycle costs
  • Wear-free, low maintenance costs
  • Real-time monitoring secures the trouble-free operation
  • Vibration-free, low machine noise
  • Advanced liquid cooling system enables energy recovery
  • Easy installation due to compact package
  • No gears, no oil and no mechanical bearings means that all maintenance is clean, efficient and predictable
  • Healthier working environment and reduced carbon footprint
Main applications

Suitable for providing oil-free compressed air in the following industries:

  • Pulp, paper and board
  • Food and beverage
  • Chemical processing
  • Pharmaceutical and medical
  • Electronics manufacturing
  • Textile manufacturing
Totally oil-free HSR turbocompressor – built to last for a long time
Totally oil-free HSR turbocompressor – built to last for a long time
Main design features
High-speed HSR turbocompressor  with magnetic bearings – additional saving potential through heat recovery
  • Totally oil-free
  • High-speed, premium-efficiency motor
  • Digitally controlled magnetic bearings ensure optimal mechanical clearances
  • Small dimensions for easy installation
  • Speed control offers the widest operating range at a good efficiency
  • Built in heat recovery and real-time monitoring
Key characteristics
2-stage version 3-stage version

2 - 5 bar (g)
30 - 70 psig

5 - 9 bar (g)
70 - 130 psig
Volume flow

max. 52 m3/min
1’840 cfm

max. 56 m3/min
1’980 cfm
Input power 115 - 265 kW
154 - 355 hp
145 - 325 kW
194 - 436 hp
Input voltage 380 - 480 V 350 - 480 V
Input frequency 50 - 60 Hz 50 - 60 Hz
Protection class IP33D IP33D
Max. noise level 80 dB 80 dB
Performance range
High-speed HSR turbocompressor. 2-stage products(2 to 4.5 bar)
High-speed HSR turbocompressor. 2-stage products (2 to 4.5 bar)
High-speed HSR turbocompressor. 3-stage products (5 to 9 bar)
High-speed HSR turbocompressor. 3-stage products (5 to 9 bar)
Case Studies
  • HSR turbocompressor for truly oil-free air
    A leading European food company has been manufacturing and selling various types of high-quality pork, beef, poultry and lamb products. A few years back, the production processes of the client were improved by the installation of a high-speed turbocompressor in one of the meat factories. It delivers 100% oil-free compressed air for the distribution network.

  • Magnetic vs. air foil bearings
    The turbocompressor has become a mainstay of modern water treatment technology, offering a mechanically simple design, reliability and good energy efficiency. Ideally suited for the production of large volumes of compressed air at relatively low pressure, they rely on bearings that can spin at high speeds with minimal resistance and for extended periods. Today, the market is dominated by two rival technologies: air foil bearings and active magnetic bearings.

  • HST™ and HSR high-speed turbocompressors for truly oil-free air
    Today, we are increasingly concerned about the environment and sustainable development. Industries are looking for solutions that reduce both energy consumption and carbon footprint – and at the same time increase equipment efficiency and reliability. When it comes to the production of compressed air, all this can be achieved with Sulzer’s centrifugal air turbocompressors driven by an electric motor. Sulzer’s product range includes turbocompressors for both low-pressure industrial applications (HST) and industrial compressed air supply networks (HSR).

  • High-speed compressors for industrial applications ─ HST™ and HSR
    Sulzer, well known for pumping and mixings solutions for several industrial applications, has made great strides to supply air compression equipment to the industries that the company serves. It started with the addition of the renowned HST line of low-pressure compressors (blowers) 20 years ago. With the addition of the HSR compressor for oil-free compressed air, the range is now quite complete when it comes to pressures normally required in industrial processes.

  • Case studies
    Wherever fluids are pumped, mixed, controlled or applied, we are there. See how our solutions create value for customers and learn how we can make your pumping and mixing processes more efficient and profitable, safeguarding your production and ensuring lasting reliability.
  • Pulp, paper and board
    Sulzer is the world leader in innovative, reliable, and proven pumping, agitation and mixing solutions for the pulp and paper industry. Our deep process and application knowledge is based on long-term close co-operation with the producers, machinery suppliers and engineering companies.

  • Food and beverage
    Food and beverage production relies on our pumping and mixing solutions. Special pumps and agitators have been developed for sugar, starch, and sweetener production. Separation equipment is often used in beverage manufacturing and our process technologies support purification and concentration.

  • Sugar, starch and sweeteners
    Efficient production of sugar, starch and sweeteners puts high demands on the processing equipment. Thanks to many years of experience and comprehensive process know-how, Sulzer offers a wide portfolio of innovative process pumps, special pumps, mixers, agitators, compressors and aerators for these industry sectors.

  • Chemical processing
    Our solutions for the chemical processing industry include pumping, separation and mixing, as well as services for rotating equipment and infrastructure. We offer experience in classical chemical, plastic, and pharmaceutical production as well as in processing renewable materials.

  • Fertilizers
    Our pumps, mixers and agitators provide durability and reliability for fertilizers production as well as for corrosive and abrasive liquids and high gas content. Our specific industry experience also includes separation processes and servicing of pumps, compressors, turbines, and motors.
Related links
  • HST™ turbocompressor
    The modern and silent HST™ turbocompressor features an advanced design with proven magnetic bearing technology and a high-speed motor driven through a built-in frequency converter.

  • Sulzer and Tamturbo join forces in high-speed compression
    March 07, 2019
    Sulzer and Tamturbo will together bring the benefits of high-speed technology in air compression to customers that need intrinsically safe oil-free air. The target is to replace existing technologies such as oil-free screw compressors in these applications. The global agreement between the companies covers sales to all industries, focusing on Sulzer’s key industries such as pulp and paper, food, metals, mining and chemical processing.

  • Sulzer launches the high-efficiency HSR turbocompressor
    December 05, 2018
    The new HSR line of high-speed turbocompressors is designed for the production of oil-free pressurized air in applications where contamination of the air must be avoided.
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