Ring blowers (also named: Regenerative blower, Side channel blower, Vortex blower) are suitable for all those applications requiring considerably higher pressures than that which can be achieved using centrifugal fans. Ring blowers are used in all those applications requiring an operating vacuum higher than the one achievable by a fan, but not as high as to require the use of a vacuum pump. The rotating parts of the blower are not in contact with the casing, there is therefore no friction during operation and thus no internal lubrication is necessary. The gas moving through the machine therefore remains uncontaminated and completely oil-free.

The use of ring blowers is common in machine-building as high pressure ventilator, vacuum pump, air pump, booster, low pressure compressor and oil-free compressor. The applications are unlimited like aireting, dust cleaning, vacuum lifting, vacuum tables, blowing off, pneumatic transport, cooling and vacuum molding.

Die cast aluminium ring blowers are robust units used for versatile applications. These blowers stand out for their durability, due to the robust aluminium design, which makes them highly resistant against corrosion.

Other advantages of High Pressure Ring Blowers ventilators include :

Ring Blower Applications :


For the three phase machines the tolerance is +/- 10% for fixed voltage range and +/- 5% for regular voltage range.The single phase machines are designed with a +/- 5% tolerance. If only 90% of the maximum allowed pressure will be used for continuous operation then the allowed voltage range adds up to +/- 10%. The frequency tolerance is maximum +/- 2%.

Specifications :

Model Frequency kW/hp Airflow/Capacity Vacuum Pressure Stage/Phase
GHBH 0D5 12 1R2 50 Hz 0.4kW/0.5hp 80m³/h / 47CFM -100 mabr 110 mbar Single-Stage/Single-Phase
60 Hz 0.5kW/0.5hp 98 m³/h / 58CFM -130 mabr 140 mbar
GHBH D73 12 1R3 50 Hz 0.55kW/0.73hp 100 m³/h / 59CFM -120 mabr 120 mbar Single-Stage/Single-Phase
60 Hz 0.62kW/0.73hp 120 m³/h / 71CFM -130 mabr 150 mbar
GHBH 001 34 2R2 50 Hz 0.7kW / 1hp 88 m³/h / 52CFM  -210 mabr 240 mbar Double-Stage/Three-Phase
60 Hz 0.83kW / 1hp 103 m³/h / 61CFM -250 mabr 250 mbar
GHBH 1D2 34 1R4 50 Hz 0.85kW / 1.2hp 145 m³/h / 85CFM -160 mabr 160 mbar Single-Stage/Three-Phase
60 Hz 0.95kW / 1.2hp 175 m³/h / 103CFM -160 mabr 160 mbar
GHBH 1D7 34 2R3 50 Hz 1.3kW / 1.7hp 110 m³/h / 65CFM -280 mabr 290 mbar Double-Stage/Three-Phase
60 Hz 1.5kW / 1.7hp 130 m³/h / 76CFM -300 mabr 400 mbar
GHBH 002 34 1R5 50 Hz 1.6kW / 2hp 210 m³/h / 124CFM -200 mabr 190 mbar Single-Stage/Three-Phase
60 Hz 2.05kW / 2hp 255 m³/h / 150CFM -220 mabr 210 mbar
GHBH 003 12 1R7 50 Hz 2.2kW/3hp 318 m³/h / 187CFM -190 mabr 190 mbar Single-Stage/Single-Phase
60 Hz 2.55kW/3hp 376 m³/h / 221CFM -190 mabr 200 mbar
GHBH 004 34 1R6 50 Hz 3.0kW / 4hp 265 m³/h / 156CFM -280 mabr 280 mbar Single-Stage/Three-Phase
60 Hz 3.45kW / 4hp 315 m³/h / 185CFM -260 mabr 270 mbar
GHBH 5D5 36 1R7 50 Hz 4.0kW / 5.5hp 318 m³/h / 187CFM -290 mabr 360 mbar Single-Stage/Three-Phase
60 Hz 4.6kW / 5.5hp 376 m³/h / 221CFM -320 mabr 310 mbar
GHBH 5D7 36 2R7 50 Hz 4.3kW /5.7hp 320 m³/h / 188CFM -360 mabr 380 mbar Double-Stage/Three-Phase
60 Hz 4.6kW / 5.7hp 385 m³/h / 124CFM -350 mabr 320 mbar
GHBH 7D5 36 1R8 50 Hz 5.5kW / 7.5hp 530 m³/h / 312CFM -300 mabr 300 mbar Single-Stage/Three-Phase
60 Hz 6.3kW / 7.5hp 620 m³/h / 365CFM -300 mabr 280 mbar
GHBH 010 36 1R8 50 Hz 7.5kW / 10hp 530 m³/h / 312CFM -320 mabr 430 mbar Single-Stage/Three-Phase
60 Hz 8.6kW / 10hp 620 m³/h / 365CFM -350 mabr 400 mbar
GHBH 011 36 1R9 50 Hz 8.5kW / 11hp 1050 m³/h / 618CFM -190 mabr 190 mbar Single-Stage/Three-Phase
60 Hz 9.8kW / 11hp 1250 m³/h / 735CFM -150 mabr 140 mbar
GHBH 015 36 2R8 50 Hz 11.0kW / 15hp 520 m³/h / 306CFM -430 mabr 600 mbar Double-Stage/Three-Phase
60 Hz 12.6kW / 15hp 620 m³/h / 365CFM -460 mabr 600 mbar
GHBH 017 36 2R9 50 Hz 12.5kW / 17hp 1110 m³/h / 653CFM -300 mabr 270 mbar Double-Stage/Three-Phase
60 Hz 14.5kW / 17hp 1310 m³/h / 771CFM -220 mabr 200 mbar
GHBH 020 36 2R8 50 Hz 15.0kW / 15hp 520 m³/h / 306CFM -460 mabr 670 mbar Double-Stage/Three-Phase
60 Hz 17.3kW / 15hp 620 m³/h / 365CFM -490 mabr 750 mbar
GHBH 022 36 2R9 50 Hz 16.5kW / 22hp 1110 m³/h / 653CFM -410 mabr 370 mbar Double-Stage/Three-Phase
60 Hz 19.0kW / 22hp 1310 m³/h / 771CFM -340 mabr 300 mbar
GHBH 025 36 AR9 50 Hz 18.5kW / 25hp 1370 m³/h / 806CFM -320 mabr 340 mbar Single-Stage/Three-Phase
60 Hz 21.3kW / 25hp 1650 m³/h / 971CFM -300 mabr 280 mbar
GHBH 027 36 2R9 50 Hz 20.0kW / 27hp 1110 m³/h / 653CFM -440 mabr 500 mbar Double-Stage/Three-Phase
60 Hz 23.0kW / 27hp 1310 m³/h / 771CFM -440 mabr 430 mbar
GHBH 034 36 BW9 50 Hz 25.0kW / 34hp 2050 m³/h / 1206CFM -310 mabr 280 mbar Double-Stage/Three-Phase
60 Hz 29.0kW / 34hp 2480 m³/h / 1459CFM -270 mabr 230 mbar

If possible, kindly suggest please send me your detailed requirements (power, pressure, airflow), then i can help choose the model accordingly! Waiting for your reply!