Desiccant Air Dryers
Industrial desiccant air dryers for very dry compressed air, including heatless, heated-purge, blower-regenerated and heat-of-compression designs. Standard catalog selection commonly targets pressure dew points around -20°C to -40°C depending on series and operating conditions. Lower or special dew-point requirements should be confirmed against the specific model, regeneration method and project data before quotation. Compare purge-air demand, heater/blower power, flow, pressure, inlet conditions and operating pattern before selecting a dryer. For a technical comparison, read our desiccant air dryer types guide, or use the Smart Equipment Selection Assistant for a catalog-backed first pass.
Desiccant Air Dryers
Zero Purge Compressed Heat Regeneration Adsorption Dryer
SMRZ heat-of-compression adsorption dryer uses available compressor discharge heat to regenerate desiccant and is designed for zero-purge operation under specified conditions.
Series
SMRZ Zero-Purge Heat-of-Compression Adsorption Dryer
SMRZ Zero-Purge Heat-of-Compression Adsorption Dryer
Catalog capacity range
37–300 Nm³/min
37–300 Nm³/min
Control power
0.25 kW across the listed series
0.25 kW across the listed series
Process connection
DN100–DN250 across listed models
DN100–DN250 across listed models
Regeneration mode
Heat-of-compression with zero-purge operation under specified catalog conditions
Heat-of-compression with zero-purge operation under specified catalog conditions
SMRZ
Desiccant Air Dryers
Heatless Adsorption Dryer
Heatless twin-tower adsorption dryer using dried purge air to regenerate the off-line tower while the other tower continues supplying dry compressed air.
Series
SMC Heatless Adsorption Dryer
SMC Heatless Adsorption Dryer
Catalog capacity range
3.8–100 Nm³/min
3.8–100 Nm³/min
Working pressure
0.6–1.0 MPa
0.6–1.0 MPa
Pressure dew point
-20°C to -40°C in the current standard catalog
-20°C to -40°C in the current standard catalog
Regeneration gas
14%–20% under catalog conditions
14%–20% under catalog conditions
SMC
Desiccant Air Dryers
Micro-heat Regeneration Adsorption Dryer
SMA micro-heat adsorption dryer combines electric heating with reduced dry purge air to regenerate desiccant, lowering purge demand compared with heatless drying.
Series
SMA Micro-Heat Regeneration Adsorption Dryer
SMA Micro-Heat Regeneration Adsorption Dryer
Catalog capacity range
3.8–100 Nm³/min
3.8–100 Nm³/min
Rated power across series
2–30 kW
2–30 kW
Connections across series
G1.5 / G2 / DN65 / DN80 / DN100 / DN125 / DN150
G1.5 / G2 / DN65 / DN80 / DN100 / DN125 / DN150
SMA
Desiccant Air Dryers
Blower-heated Regeneration Adsorption Dryer
SMB blower-heated adsorption dryer regenerates desiccant with heated ambient air, reducing dried compressed-air demand compared with heatless regeneration.
Series
SMB Blower-Heated Adsorption Dryer
SMB Blower-Heated Adsorption Dryer
Catalog capacity range
13.5–100 Nm³/min
13.5–100 Nm³/min
Rated power across series
8.2–64.5 kW
8.2–64.5 kW
Connections across series
DN50 / DN65 / DN80 / DN100 / DN125 / DN150
DN50 / DN65 / DN80 / DN100 / DN125 / DN150
SMB
Desiccant Air Dryers
Blower-heated Zero Purge Air Dryer
SMBZ blower-heated zero-purge dryer uses heated ambient air to regenerate desiccant without dried compressed-air purge during its specified regeneration cycle.
Series
SMBZ Blower-Heated Zero-Purge Adsorption Dryer
SMBZ Blower-Heated Zero-Purge Adsorption Dryer
Catalog capacity range
13.5–200 Nm³/min
13.5–200 Nm³/min
Rated power across series
11.6–190 kW
11.6–190 kW
Connections across series
DN50 / DN65 / DN80 / DN100 / DN125 / DN150 / DN200
DN50 / DN65 / DN80 / DN100 / DN125 / DN150 / DN200
SMBZ
Desiccant Air Dryers
Low Purge Compressed Heat Regeneration Adsorption Dryer
SMR low-purge heat-of-compression dryer uses compressor discharge heat for desiccant regeneration and reduces purge-air demand versus conventional heatless drying.
Series
SMR Low-Purge Heat-of-Compression Adsorption Dryer
SMR Low-Purge Heat-of-Compression Adsorption Dryer
Catalog capacity range
37–300 Nm³/min
37–300 Nm³/min
Control power
0.25 kW across the listed series
0.25 kW across the listed series
Process connection
DN100–DN250 across listed models
DN100–DN250 across listed models
Regeneration gas
Approx. 2%–4% under catalog conditions
Approx. 2%–4% under catalog conditions
SMR