VR and VRX series air-driven coolers

VR / VRX SERIES coolers are the most modern solution for cooling with compressed air based on the Vortex Tube principle. Excellent flow and generated ΔT performance, design, fasteners that make them extremely versatile for mounting, and the possibility to combine them in a patented system with air boosters (to use the flow of hot air), offer customers an innovative, efficient and low-cost solution for cooling metal and plastic parts, electrical and electronic control cabinets and mechanical applications. All this with a simple connection to the compressed air distribution.

  • ∆t compared to supply air temperature, up to -40 °C for cold air flow and +60 °C for hot air flow
  • Easy installation using flanges or neodymium magnet
  • Patented hot air recovery system in combination with AM series amplifiers
  • Made of corrosion-resistant material
  • No moving parts and therefore not subject to wear and tear
  • No electricity or chemical products are required
  • No sparks or interference
  • Immediate operation
  • Reliable and maintenance-free

Description of vortex tubes

A Ranque-Hilsch tube, better known in the industrial sector as a "vortex tube", is a device that splits a stream of compressed air into 2 separate streams: one cold air and the other hot air. The core of the system is a vortex chamber, which is connected to 2 opposing tubes, one of which has a valve. When compressed air is injected tangentially into the chamber, it causes a rotational movement of the air towards one of the outlets. This vortex rotates at high speed and impinges on the inside of the tube, increasing the temperature; the valve located at the outlet of the hot air allows part of it to be removed. The remaining part returns, creating a low-pressure vortex moving towards the second exit and transferring heat to the first vortex. So this current is much cooler. The generated ΔT is inversely proportional to the flow volume. Temperature differences are significant and can reach -40°C for a cold stream and 60°C for a hot stream. In the industrial field, Vortex tubes have been used for a long time and have found various applications where they offer great added value. They have great cooling performance, are very easy to install and have instant operation, they have no moving parts and are therefore maintenance free. In addition, they do not require electricity, so they are suitable for hazardous environments and wet areas. If the application allows them, they are more cost-effective than electric coolers. SERIES VR and VRX coolers, in addition to superior performance compared to other products on the market, were designed to be easily adapted to customer requirements.

Cooler air saving – patented system

VR series coolers and AM series amplifiers are used together to draw cold air and extract warm air from the electrical cabinet simultaneously using a single compressed air supply line.

  • Effective ventilation of the electrical cabinet
  • Reduction of compressed air consumption
  • Optimized cooling results

Regardless of how much cool air is pumped into the electrical cabinet, cooling efficiency and effectiveness will never be optimal unless the warm air generated by the electrical components is properly vented at the same time. By ventilation, we mean both the creation of convection currents inside the cabinet, which effectively distribute the air around the components, as well as the removal of warm air from the cabinet itself.

By using Simian Project's patented Cooler Air Saving system, two results were achieved:
The first - with the use of VR series coolers, there is a quick and precise cooling of the components that heat the case the most, thanks to the flexibility of the installation (brackets and magnets) and the fact that the flow of cold air to the main heat sources can be precisely directed (with the help of adjustable nozzles);
The second - is the proper ventilation of the electrical box due to the suction and blowing power generated by the air flow amplifiers of the AM series, fed directly by the air flow discharged from the radiator.

A system for storing components inside the electrical distribution box

The VRX-500 cooler (Fig. 1) is powered by externally compressed air; the flow of cold air is directed by means of special adjustable nozzles to the electrical components that give off the most heat, while the exit of warm waste air is guided by the red pipe (Fig. 3) and fed to the amplifier of the AM series;
The amplifier (Fig. 2) is mounted in the upper right part of the distribution box; the through fitting enables air intake and exhaust from the cabinet; in the schematic example, its position at the top of the cabinet ensures that the extraction takes place where the most hot air accumulates and that even the electrical components located on the opposite side from the direct source of cold air remain at a temperature suitable for optimal operation

Even where through-mounting is not possible (for example, in installations in cabinets where IP protection must be guaranteed), mounting the amplifier inside the cabinet ensures forced air recycling, eliminating the concentration of warm air in the area furthest from the sources of cold air .

The patented system also works well together with industrial air conditioners in electrical cabinets with the following features:

  • Large electrical cabinets in which the cold air generated by the air conditioner has difficulty reaching all parts of the cabinet;
  • Electrical cabinets with electrical components arranged in such a way that airflow around the components is difficult;
  • Electrical cabinets in which heat is generated by several components that are located far from the area where the air conditioner draws cool air;

Note: Cooler Air Saving works with VRX-300, VRX-500 and VRX-1000 coolers along with AM-20 and AM-40 amplifiers


Slavomír Brath

Tel: +421 37 7777 950
Mobile: +421 903 282 393
Fax: +421 37 7777 969