Aerzen
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19 model Air blowers
Filter & sort
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Comparison of 4 Air Blower Technologies
Side-channel · Roots · Screw · Turbo — select by flow rate, pressure, and operating environment. Click to view brands.
| Technology | Mechanism | Max Pressure | Flow Rate | Select When |
|---|---|---|---|---|
| Side-Channel (ring blower) | Side-channel impeller, non-contact rotor, oil-free air, very quiet operation | Low · vacuum up to -500 mbar | Small | Aeration for shrimp/fish ponds, small tanks, light vacuum — FPZ |
| Roots (3-lobe) | Positive displacement, two 3-lobe rotors, external compression, simple, cost-effective | up to ~1.000 mbar | 30 – 15.000 m³/h | Wastewater treatment aeration 24/7, pneumatic conveying, biogas — Aerzen, Robuschi |
| Screw | Internal compression, high efficiency, energy saving at high pressure | up to 3.500 mbar | 100 – 15.000 m³/h | High pressure, continuous operation, energy savings required — Aerzen Delta Hybrid / Delta Screw |
| High-Speed Turbo | High-speed centrifugal, non-contact bearings, low maintenance | 200 – 1.000 mbar | 360 – 18.000 m³/h | Very high flow rates, base load for large wastewater plants — Aerzen Turbo, Haus |
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Định nghĩa · Spec · Cách chọn cấu hình
Select correctly Air Blower
Từ định nghĩa, dải thông số đến 3 bước chọn model — tất cả trong một mạch.
Air blower generates high-volume airflow at low pressure by displacing air volume through rotors (3-lobe Roots or screw), centrifugal acceleration (turbo), or using a side-channel impeller (ring blower). Unlike high-pressure air compressors, air blowers are optimized for high flow rates at low pressure and 100% oil-free air in the working gas path.
Classification by technology: side-channel / ring blower (side-channel impeller, low flow, very quiet, non-contact rotor requiring virtually no maintenance — suited for pond aeration and light vacuum); Roots (3-lobe, simple, low cost, pressure up to ~1.000 mbar); screw (internal compression, high efficiency, energy saving at high pressure, up to ~3.500 mbar); turbo (high-speed centrifugal, very high flow rates). Many models can also operate in vacuum mode (up to -500 mbar).
1
Determine Flow Rate & Pressure
Required air flow rate (m³/h) and discharge pressure (mbar) — or vacuum level — at the point of use determine the unit size. Deeper aeration tanks require higher pressure.
2
Select Technology: Side-Channel / Roots / Screw / Turbo
Low flow requiring quiet operation (pond aeration, light vacuum) → side-channel; low pressure + compact budget → Roots; high pressure + continuous operation requiring energy savings → screw; very high stable flow rate → turbo. Refer to the 4-technology comparison table below.
3
Select Configuration & Brand
Oil-free air, variable frequency drive (VFD), noise level, and protection class per environment. Choose Aerzen (Germany), Robuschi (Italy), or FPZ side-channel (Italy) based on standards and CO-CQ requirements; TKT engineers advise on configuration.
Roots or Screw Air Blower?
Two widely used blower technologies for aeration and pneumatic conveying. Compare by pressure, efficiency, and cost to decide. (For low flow with quiet operation → consider a side-channel blower.)
| Criteria | Roots (3-lobe) | Screw |
|---|---|---|
| Max Pressure | ~1.000 mbar | up to 3.500 mbar |
| Efficiency at High Pressure | Lower | Higher (energy saving) |
| Capital Cost | Low | Higher |
| Flow Range | Wide | Wide |
| Noise Level | Higher | Lower |
| Maintenance | Simple | Simple |
| Suitable For | Low pressure, compact budget | High pressure, continuous operation |
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Wastewater Treatment Aeration
Air supply to aerobic tanks (aeration) — a common application for air blowers, operating 24/7.
Aquaculture
Aeration for shrimp/fish ponds to increase dissolved oxygen — side-channel blowers for quiet and durable operation, or Roots for high flow rates, continuous operation.
Pneumatic Conveying
Transporting cement, powder, and plastic pellets using low-pressure compressed air (pneumatic conveying).
Cement & Bulk Materials
Silo aeration, fluidization, and dry material conveying.
Food & Beverage
100% oil-free air for aeration and clean ingredient conveying.
Industrial Vacuum
Clamping, packaging, moisture extraction — side-channel or Roots blowers operating in vacuum mode.
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Questions frequently asked
An air blower generates high-volume airflow at low pressure (typically up to ~3.500 mbar) or vacuum, whereas an air compressor produces high pressure (multiple bar). Air blowers are used for aeration, pneumatic conveying, and vacuum applications, with the working gas path 100% oil-free.
A side-channel blower (also called a ring blower) uses a side-channel impeller to generate low-volume airflow at low pressure or vacuum, operating very quietly and requiring virtually no maintenance due to the non-contact rotor. Commonly used for aeration of shrimp/fish ponds, small tanks, and light vacuum in packaging, printing, and medical applications. TKT distributes genuine FPZ (Italy) side-channel blowers. See also: what is a side-channel blower.
Side-channel blowers deliver low flow, very quiet operation, and low maintenance — suited for pond aeration and light vacuum. Roots (3-lobe) is simple, low-cost, with pressure up to ~1.000 mbar. Screw blowers use internal compression for higher efficiency and energy savings at high pressure, up to ~3.500 mbar. Turbo (high-speed centrifugal) delivers very high flow rates with good efficiency under stable load conditions.
Air blowers supply air to the distribution system at the bottom of aerobic tanks to enable microorganisms to break down organic matter. Flow rate and pressure are selected based on tank volume, submersion depth, and oxygen demand; blowers typically run 24/7, making energy efficiency critical. See details: air blowers in wastewater treatment.
Yes. In side-channel, Roots, screw, and turbo industrial blowers, the working gas path does not contact lubricating oil, so the output is 100% oil-free — suitable for water treatment, food processing, and environments requiring clean air.
Typical range: flow rate approximately 30 to 15.000 m³/h, discharge pressure up to ~3.500 mbar (3,5 bar) and vacuum up to -500 mbar, power 7,5 – 500 kW. Specific figures vary by model — see the brand page or contact a TKT engineer.
Yes. Many side-channel and Roots/screw blower models can operate in vacuum mode (up to approximately -500 mbar) for clamping, packaging, moisture extraction, and conveying applications. Vacuum requirements should be clearly specified when selecting a unit.
Estimate air demand by multiplying tank volume by the specific aeration rate (m³ air per m³ tank per hour) to get flow rate (m³/h); select pressure based on submersion depth of the diffuser disc/pipe (each 1 m water column equals approximately 100 mbar) plus pipe losses. Typical range: 30 – 15.000 m³/h, pressure up to 3.500 mbar. Send tank volume, depth, and oxygen demand to a TKT engineer for a proper sizing calculation.
Cost depends on technology (side-channel / Roots / screw / turbo), flow rate, pressure, brand, and configuration (VFD, materials, motor). Since blowers typically run 24/7, total cost of ownership (energy, maintenance) should be considered alongside the purchase price. Contact TKT for a quotation based on your specific requirements.
TKT distributes genuine Aerzen (Germany) air blowers — Roots (Delta Blower), hybrid, screw (Delta Screw), and turbo — together with Robuschi (Italy) and FPZ (Italy — side-channel ring blowers), with CO-CQ documentation and spare parts. See the brand page or call 0941.400.488.