Radial fans

S-ESZ (for high temperature)

Its task is to transfer clean air free from aggressive, abrasive and explosive components of max. 250 ℃ temperature. The fans are to be installed in the air heating and ventilation devices of painting systems.

Common fields of application:

S-ESZ M / S-ESZ H type fans, inlet fans are used in the pre-treatment units, water dryers, annealing furnaces etc. of painting systems produced by our company.

Their task is exhausting and, in the air heater units, transfer of the air.

The fans are produced with only one method of drive installing the impeller directly on the shaft stub of the electric drive motor. The impeller is of backward blades in a welded carbon steel structure. In order to provide vibration free running, the impeller is balanced both statically and dynamically. The rotating part is fixed on the shaft of the motor with washer, screw and security plate. The motor is of flanged design and is fixed to the spiral house through a washer plate. At transferring hot air (air of temperature over 60 ℃) the cooling of the bearings needs to be provided. The cooling of the bearings of the units (electric motors) is provided by cooling discs. In order to maintain appropriate operation of the cooling discs and that of the motor in the environment of the units the temperature cannot exceed 40 ℃. The spiral house is of a welded structure, on which the fan inlet can be installed on one side and the suction cone on the other side with the same connection size. At transferring explosive medium, an aluminium suction cone and explosion-proof motor are applied.


It is a product family of fans providing high pressure with small volume air transfer and with front direction blades. They can be applied for general or industrial ventilation purposes and can be installed in exhaust units and can be operated in both open and closed spaces. Their great advantage is the small space demand; they can be well applied for transferring mediums containing sticking powder.

It is a product family of direct drive.

In the basic design, it is appropriate for transferring normal air. However, it can also be well-applied for transferring mediums containing sticking powder.

In the basic design, it is appropriate for transferring mediums in the range of -20 ℃- +60 ℃ temperature. In special design, this value is subject to change.

VHf, NVH, KNV (direct-driven fans)

Members of the radial fan product family operate in the pressure ranges of small-medium air transfer and medium-large air transfer. Their air transfer falls in the range of 0.01-3 m3/s, while their compression increase falls in the range of 210-7600 Pa. All units can be equally well-applied for industrial purposes, for the supply of technology processes of smaller equipment as well as for all general ventilation purposes. While KNV and NVH types are mainly appropriate for the first function, for general ventilation purposes, rather the VHf types are more suitable. The fans can equally be installed in rooms indoor as well as in open air environments. Units operating in open air are recommended to provide with protective cover in order to prevent the direct exposure to precipitation.

These units are often installed in rather dusty environments or in areas where the temperature of the transferred medium is subject to changes or the moisture content is too high so the accumulation of dust or condensed moisture in the units may be significant. Therefore, the fans are equipped with check-cleaning doors as well as condensed water discharge opening.

These single-gear radial fans exhausting from one of the sides are designed with impeller directly mounted on the motor shaft. The motor support stand is built together with the fan. The spiral housing is undivided; the impeller can be accessed and repaired through the slot on the side of the spiral housing (on the back side with VHf and on the suction side with the rest of the types). All units are equipped with flanges and framework as well as suction and pressure stubs.

VH, NVH (belt-driven fans)

The belt-driven fans complete the range of direct-drive basic units. The belt-driven fans play role in reaching higher volume flow and spreading pressure to a lower extent.

These radial fans can be used for industrial and technological tasks as well as for general ventilation and building mechanical engineering purposes. For industrial purposes of for larger air technology systems e.g. those with separators rather the NVH type, whereas for mechanical building engineering purposes the VH type is more appropriate. The advantage of the belt-driven type is that the units can be easily and quickly adapted to any currently changed systems; it is only the belt that needs to be replaced. With these changes, it needs to be considered that the necessary driving performance will change in a sensitive balance with the change of the cycle.

The belt-driven fans are of single gear radial fans with suction from one side only. The air enters from the direction of the shaft through the suction stub. Since the fan is of direct drive, it is connected to the spiral in a bent method. With standard design of the motor, the motor is located on the opposite side to the pressure stub of the spiral housing. The fans are of belt drive; the coupling is generated between the belt disc mounted on the electric motor and the belt of the drive. The belt drive and the shaft are equipped with protective cover.

TVN (transport fan)

The TVN type of transport fan, thanks to its special design, makes it possible that the medium to be transferred and mixed with air go through the blades. These special purpose units are therefore appropriate for providing such pneumatic and fluid technological tasks, whereas the task is to carry airy powder material or that of air or chippings mixtures. Therefore, the medium to be transported, going from the place of feeding through the exhaust pipe and getting through the pressure pipe reaches its destination. The transport fan therefore is appropriate for transferring e.g. sawdust, wood chippings, and paper as well as textile industrial and agricultural wastes, chopped and fibered materials by means of air.

The impeller of the fan is of blades without front plate, is welded of sheets, reinforced in design and dynamically balanced. The spiral housing is of special design with its side plates being square-shaped. The fan is of belt drive, whereas the drive motor is located beside the fan mounted on a separate plate.