Side Channel Blowers

The G‑Series Side Channel Blowers from Elmo Rietschle use innovative technology to provide reliable, contact‑free compression for industrial applications. G‑Series Side Channel Blowers deliver dependable vacuum and compression solutions for industrial processes – featuring dry‑running, contact‑free compression, high differential pressures, and a wide performance range. Depending on model and configuration, they typically achieve volume flows up to 3,000 m³/h and differential pressures up to 1,100 mbar. Side Channel Blowers are also referred to as regenerative blowers; terminology varies by industry. The G‑Series motors support flexible voltage ranges (50/60/87/100 Hz), high protection classes (IP55 and above), and ATEX certification for use in hazardous environments. With their robust design and virtually maintenance‑free operation, Elmo Rietschle Side Channel Blowers offer reliability and versatility for decades of trouble‑free performance.

Efficient and versatile, our Side Channel Blowers meet the requirements of a wide range of industrial environments and provide reliable vacuum and compression performance. Yes, Side Channel Blowers are commonly used for both pressure and vacuum applications (depending on configuration and connection direction).They are particularly suitable when a continuous, low‑pulsation airflow is required and the vacuum level lies in the low to medium vacuum range. Ideal applications include:

Limits & selection notes
• Vacuum level vs. flow rate: Side Channel Blowers excel at high flow rates and moderate vacuum. If very high ultimate vacuum levels are required, the technology must be selected accordingly.
• Clean, dry gases preferred: For long‑term performance, inlet conditions (filters, particle protection) should be properly designed.
• Speed control (VFD) for variable load: Frequency converters are used to adapt speed and performance to changing load conditions, especially when suction demand or differential pressure fluctuates.

Quick comparison
When an application requires moderate vacuum plus high flow rate, a Side Channel Blower is often a very robust solution. For applications requiring very high vacuum levels or other specific process demands, alternative vacuum technologies may be more appropriate depending on the boundary conditions.

Problem: In large plastics production environments, conveying distances and material throughput can vary significantly (e.g., depending on machine, formulation, granulate, and pipe lengths). At the same time, energy consumption and noise levels must remain low.

Solution: A leading provider of continuous raw‑material handling systems integrated Elmo Rietschle Side Channel Blowers and vacuum pumps into a fully automated, centrally monitored material conveying system. With speed‑controlled, energy‑efficient Side Channel Blowers (inverter technology), the airflow is adjusted precisely to the required material throughput.

Result:

• The performance range of the frequency‑controlled Side Channel Compressors was expanded up to 22 kW — enabling flexible conveying requirements.
• Example calculation: €3,900 savings over 20,000 operating hours when a frequency‑controlled 11 kW Side Channel Compressor uses just 10% less energy (at €0.13/kWh).
• Sound‑pressure levels can be significantly reduced through modern sound engineering — important for noise‑sensitive production environments.

FAQ – Side Channel Blowers (G‑Series)