These blowers made by KUBICEK are devices which deliver compression of a gas media, using two three-lobe rotors (rotary pistons).


The parallel rotors are located in a horizontal position within the blower box, and rotate in opposite directions. The movement of the rotary pistons causes the media to be sucked in through the intake port of the device, transported to the destination, and compressed. The system is fitted with a synchronizing gear mechanism with ground spur gears to provide accuracy and fluency in rotor movement. Furthermore, it also serves to limit the no-contact space allowance for rotor operation. These rotors do not need any lubrication, which prevents oil contamination of the media. This is also one of the reasons why ROOTs blowers made by KUBÍČEK have found their use in such a vast number of industries.

Blower aggregates

KUBÍČEK company is currently producing 21 sizes of ROOTs blowers.




  • Aeration of WWTP tanks
  • Washing of sand filters for drinking water treatment plants
  • Pneumatic conveying
  • Transport and compression of non-explosive and nonaggressive gases
  • Aeration of fish breeding tanks and swimming pools
  • Transport of combustion air into the blast furnaces
  • Desulphurization
  • Transport of drying and blowing air in technology

Features & Benefits

Total conception of arrangement of the aggregate is designed with emphasis on maximum reliability and functionality, easy checking, maintenance and accessibility of individual components of the unit in the acoustic cover
  • Low operating costs
  • User friendly design
  • Minimum built up area
  • Low noise
  • No need of using additional ventilator for cooling of acoustic cover
  • Long service life

Scope of delivery

  • ROOTs blower
  • Unit frame
  • Flexible pads
  • Inlet silencer with filter
  • Discharge silencer
  • Safety or integrated safety and start-up valve
  • Backflow valve
  • Flexible connection on outlet
  • Electromotor
  • V-belt drive with protective cover
  • Oil filling
  • Anchoring material

Optional equipment

  • Acoustic cover for indoor and outdoor environment, including suction and discharge gauge
  • Frame for vertical placing of two units (for size 3D19 – 3D38)
  • Connection for external suction


Working pressure ∆P = 0 - 1000 mbar
Volumetric flow rate Q = 706 – 706.000 cf/h
Motor power P1 = 0,335 - 670 HP
Discharge connection DN = 2 – 16 “

Gas blower aggregates

Gas blowers are designed for suction, compression and transportation of flammable, explosive and corrosive gases. They meet the requirements EU Directive 94/9/EC - ATEX called.

Construction of blower is resistant to internal explosion and will not allow its transfer to the surrounding area. Units are equipped with safety features and relevant measuring elements for measuring and monitoring of operational parameters. In combination with the corresponding control system, these units can work in automatic mode with remote data transmission.


  • Mine gas exhaust stations
  • Increasing the pressure of dry ammonia
  • Transport of coke oven gas
  • Exhaustion of biogas and landfill gas
  • Filling of cogeneration units
  • Extraction of exhalations
  • Increasing pressure of propylene
  • Evaporators
  • Mobile exhaust stations
  • Autonomous container units


Working pressure:
Over pressure ∆P = 0 - 1000 mbar
Low vacuum - basic version ∆P = 0 to -400 mbar rel.
Deep vacuum - with intercooler ΔP = -400 to -800 mbar rel.
Volumetric flow rate Q = 706 – 706.000 cf/h
Motor power P1 = 0,335 - 670 HP
Discharge connection DN = 2 – 16 “