What is a Side Channel Blower and How is it Used

By Rich Carter


A reliable piece of equipment used to move gas and mixtures of gas and air through systems that must have consistent and flawless service is the side channel blower. This blower type typically runs with less noise than other vacuum pumps and compressors. In addition to that, they are generally made in single or double models with dual capabilities in pressure and vacuum style systems.

A side channel blower provides pulsation-free gas flow that is suitable for high differential pressure situations. There are numerous industries that use these blowers, such as paper making, printing, plastics manufacturing, beverage bottling, food processing, wood pressure treating, environmental technology, and pneumatic conveying. Some things that are made possible with these blowers is aeration, heat and fume extraction, air knife applications, and process drying.

Over time, the flow rates that range as much as 550 cubic meters per hour mean that the majority of side channel blower designs allow them to consistently supply a steady flow of gas and gas-air mixtures, or clean filtered air. They are built to last and withstand continual use which is frequently at high temperature, sometimes providing steady performance and duration at 40 degrees Celsius.

The corrosion resistant materials used to create them are light weight and solid for quiet, maintenance free efficiency. Purchasers must be aware that there are ranges of motor classes in side channel style blowers which mean that they should make certain to match the motor output with their requirements when deciding on the correct model for their purposes.

The typical metals used in construction of side channel blowers are aluminum and aluminum alloy. These 50/60 Hz voltage motors are designed for international use, and can be mounted vertically or horizontally as required. There are even some three-phase versions that are being offered by some makers to provide the option for single, double, or triple phase action.

Most models require little to no maintenance. These units use kinetic energy to apply pressure to the gas or gas-air mixture, which is then released through the side channel. Just about any automation application that needs large volumes of clean dry air coupled with low pressures or vacuum levels will find the side channel style blower is ideal.




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