Traditionally, turbomachinery has been the domain of large devices and installations, characterized by installed power levels ranging from several megawatts upwards. Smaller devices are characterized by higher rotational speeds, which pose a technical challenge and set a number of new design and technological requirements. Thanks to the application of in-house solutions in the field of aerodynamics and structural mechanics, oil-free bearings, and the use of state-of-the-art power electronics and high-speed drives, we have been able to meet these challenges.

Our devices, unlike the most commonly used positive displacement machines, belong to the group of turbomachinery, which has tangible and positive effects on operational and economic characteristics. High rotational speeds of the rotors result in very high power density, small device sizes, and quiet and vibration-free operation.

In addition, an important feature of turbomachinery is their wide operating range, which results in excellent control properties, which, in the target systems, provide excellent efficiency at partial loads, i.e. in conditions in which these devices often operate most of the time (e.g., air-conditioning or heat pumps). Furthermore, due to the lack of components that rub against each other (as in a piston compressor) or roll over each other (in a screw compressor or scroll type), turbomachines are much more durable, have significantly less wear of working components, and are consequently cheaper to operate.

High-speed, oil-free and hermetic turbomachinery

We design and deliver comprehensive solutions for high-speed centrifugal compressors and turbines for industrial applications in chillers, heat pumps, waste energy recovery, compression, and expansion of process gases.

Hermetic design

Oil-free technology

Gas bearings

Liquid bearings

High-speed motors

High frequency inverters

Application of 3D printing

Shape optimization of the blades

Rotordynamics optimization

Thermal optimization

In-house design tools

Remote control and diagnostics

Basic design

The flow paths of our devices are designed based on our own computational methods developed in a series of R&D projects. In the design calculations, the working fluid is treated as a real gas, whose equation of state differs significantly in properties from an ideal gas (especially near the saturation line).

Mechanical design

The rotors of our machines are supported on oil-free bearings, which use the working medium of the target system (e.g., hydrocarbons or refrigerants such as R134a, R1234ze, R1233zd, etc.) as the lubricating agent.
The casings of our machines are fully hermetic. The oil-free design ensures the purity of the working medium.

In the smallest devices, we use gas bearings, including compliant foil bearings. For larger compressor powers and heavier shafts, we are able to utilize lubrication with the working fluid in the liquid phase.


We are able to develop a high-speed turbomachine tailored to the user’s needs and imposed parameters (e.g., inlet steam pressure and temperature, outlet pressure, mass flow). We carry out the process of building a new machine comprehensively – from developing the design to manufacturing and conducting tests (unless the Client has different requirements).


When developing a new machine, it is important to accurately understand the client's needs (e.g., whether the machine should be optimized for efficiency, intended for continuous operation, whether remote monitoring is needed, etc.)

Design and Production Process

After determining the Client's exact expectations, we proceed to design the machine, typically starting with the flow path. Subsequently, we analyze the dynamics of the rotating system, prepare the assembly design, and create the manufacturing documentation. The next step is to order the production of parts and assemble the machine.


Even if we manufacture a machine based on existing documentation (e.g., another copy), it is necessary to perform bench tests, which are essentially a component of quality control.

Installation and Startup at the Client's Site or Delivery of the Finished Product

After conducting bench tests, the machine is ready for installation under operational conditions. We carry out this task together with the Client in such a way as to verify the device's performance and not disrupt any ongoing processes.