Side Channel Blower

Side Channel Blowers / side channel pumps can be used as vacuum pumps or compressors and are a highly efficient dry running technology for numerous applications. These contact free machines are virtually maintenance-free and can operate up to 40,000 hours without being serviced. Noise levels are extremely low which makes them a favorite for noise-sensitive applications.


The impellers are mounted directly on the motor shaft for contact free compression. Maximum operational reliability, even at high differential pressures, is ensured by the arrangement of the bearings outside the compression chamber. The gas is taken in through the inlet. As it enters the side channel, the rotating impeller imparts velocity to the gas in the direction of rotation. Centrifugal force in the impeller blades accelerates the gas outward and the pressure increases. Every rotation adds kinetic energy, resulting in further increase of pressure along the side channel. The side channel narrows at the rotor, sweeping the gas off the impeller blades and discharging it through the outlet silencer where it exits the pump.



Side Channel Blower
Side Channel blowers are the first choice in many automation projects for applications requiring large volumes of clean, dry air at low pressures and vacuums. The RE Range side channel blowers are available in single and three phase with pressures or vacuum up to 400 mBar and flow rates up to 550 m3 per hour. RE Side channel blowers have the added benefits of low noise operation(64-88db) and are compact, virtually maintenance free design.Three-dimensional blower blades enable the air between blades to accelerate along the blade and diameter directions due to rotations. The air is forced to return back to the bottoms of the blades due to pressure difference when entering the blower paths and then accelerates again. This kind of air running movement repeats again and again to result in compression and pressure intensification due to the spiral movement of the air in the blower paths. When the air moves toward the outlet, it will be forced to expel.
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