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Micro-Heat Compressed Air Dryer with Pressure-Swing Adsorption Technology

1.Air delivery: 34~65m3/min 1202-2298cfm
2.Working Pressure:0.5-4MPa/5~40bar/72.5-580psi
3.Input Power: 9.0-18KW
 
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What It Is

This dryer combines pressure swing adsorption (PSA) with a built-in low-power heater to improve regeneration efficiency. One tower removes moisture from the compressed air while the other regenerates using a small amount of purge air and controlled heat. The result: much less purge air loss than a heatless dryer, with a steady pressure dew point down to -40°C.

Technical Parameters

                                                      SRD Series Heated desiccant air dryer
Model

Air Delivery

 (m3/min)

Voltage
(V/HZ)
Power (kW)Inlet/Outlet
(PT)
Dimension (mm)Weight (Kg)
L*W*H
SRD-3034.00380V/50HZ9DN801700*955*24101328
SRD-4045.00380V/50HZ12DN1001950*1000*25501674
SRD-5055380V/50HZ15DN1002010*1170*26502100
SRD-6065380V/50HZ18DN1252160*1470*27052707


Why Choose It

  • Less air waste – uses only 5–8% of rated flow for regeneration, compared to 12–15% for heatless designs

  • Low energy use – a small heater (typically under 2 kW) runs only during regeneration, keeping electricity costs minimal

  • Steady performance – maintains -40°C pressure dew point even when inlet conditions vary

  • Saves space – smaller vessels than heatless dryers for the same capacity

  • Dependable – built for operations that need both energy savings and consistently clean, dry air


Where It's Used

  • Laser cutting – keeps optics clean and beam quality stable

  • CNC machining – prevents moisture damage to spindles and precision parts

  • Pharmaceuticals – meets high purity standards

  • Food & beverage – protects hygiene and product quality

  • Electronics – avoids oxidation and moisture-related defects

  • Automotive painting – delivers flawless finishes by keeping spray lines dry


Common Questions

Q1. How is this different from a heatless dryer?
A micro-heat dryer adds a small heater during regeneration, which cuts purge air consumption to 5–8% instead of 12–15%. That makes it a better fit for medium to large systems where efficiency matters.

Q2. How much power does it draw?
Very little. The heater runs only during regeneration cycles, and total power is typically under 2–3 kW depending on the model—much lower than heated blower dryers.

Q3. What dew point can I expect?
A consistent -40°C pressure dew point, which meets the requirements of most industrial applications that demand dry air.

Q4. Can it handle high-pressure systems like 16 bar?
Yes. It's available in both standard and high-pressure configurations, including models rated for 16 bar and above.

Q5. What does maintenance involve?
Routine checks include pre-filters, heater and valve inspection, and desiccant replacement every 2–3 years—depending on operating conditions.

Q6. When should I pick a micro-heat dryer over a heatless one?
Go with a micro-heat dryer when you want to cut down on purge air loss and energy costs—especially for continuous operation or systems with flow rates above 2–3 m³/min.

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