Product Categories:

Wait, don't go!
Before you leave, we have a special offer just for you!
Get 20% off your next purchase.
$3,000.00
Atlas Copco SMD 2-55 membrane air dryers remove water and oil particles, reducing the risk of corrosion and preventing costly downtime. By delivering clean, dry air, they lower energy costs, minimize leaks, and protect the quality of your final products from moisture-related contamination.
Atlas Copco SMD 2-55 membrane air dryers remove water and oil particles, reducing the risk of corrosion and preventing costly downtime. By delivering clean, dry air, they lower energy costs, minimize leaks, and protect the quality of your final products from moisture-related contamination.

If you’re looking for effective, ow-maintenance air drying performance, the Atlas Copco SMD 2-55 membrane air dryers is your ideal solution. Thanks to its simple design, our membrane dryer is quiet, efficient and easy to operate. It has no moving components, which makes it 100% maintenance free. With its low pressure drop and purge air use, the Atlas Copco SMD 2-55 membrane air dryers provide real energy savings without compromising on drying effectiveness.
Advanced drying technologyCompared to conventional membrane dryers, the SMD’s unique coating increases separation efficiency with a low air leakage and purge air loss to give you maximum energy efficiency. A choice of membranesSMD dryers come with two types of membranes, each offering a different pressure dew point suppression level. This ensures that regardless of your production environment and demands, there are Atlas Copco SMD 2-55 membrane air dryers to meet your needs. Low air resistance saves energyDue to the simple design of the SMD, the compressed air travels straight through the dryer – ensuring minimal pressure drop and maximum drying efficiency |
![]() |
SMD 3-32 up to SMD 35-32:
PDPS of 32˚C at reference conditions.
SMD 2-55 up to SMD 23-55:
PDPS of 55˚C at reference conditions.
The dryers come configured as standard with optimized purge nozzle for 3 pressure variants:
7 bar(e)/101.5 psig, 10 bar(e)/145 psig, and
13 bar(e)/188 psig
| Variant | PDPs | Capacity | Pressure | Membrane dimensions | Horizontal installation | Vertical installation | Inlet filter | Connections | ||||||||||||||||||
| A | B | C | D | E | F | Type | G | Inlet | Outlet | |||||||||||||||||
| ℃ | °F | l/s | m³/h | cfm | bar | psi | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | G | NPT | G | NPT | ||
| SMD 2-55 | 55 | 131 | 2 | 5 | 3 | 7 | 102 | 73 | 3 | 325 | 13 | 500 | 20 | 300 | 12 | 565 | 22 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 2-55 | 55 | 131 | 2 | 7 | 4 | 10 | 145 | 73 | 3 | 325 | 13 | 500 | 20 | 300 | 12 | 565 | 22 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 2-55 | 55 | 131 | 3 | 9 | 5 | 13 | 189 | 73 | 3 | 325 | 13 | 500 | 20 | 300 | 12 | 565 | 22 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 4-55 | 55 | 131 | 4 | 13 | 7 | 7 | 102 | 73 | 3 | 478 | 19 | 653 | 26 | 300 | 12 | 718 | 28 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 4-55 | 55 | 131 | 5 | 16 | 10 | 10 | 145 | 73 | 3 | 478 | 19 | 653 | 26 | 300 | 12 | 718 | 28 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 4-55 | 55 | 131 | 6 | 20 | 12 | 13 | 189 | 73 | 3 | 478 | 19 | 653 | 26 | 300 | 12 | 718 | 28 | 246 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 6-55 | 55 | 131 | 6 | 22 | 13 | 7 | 102 | 100 | 4 | 541 | 21 | 690 | 27 | 303 | 12 | 782 | 31 | 253 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 6-55 | 55 | 131 | 8 | 29 | 17 | 10 | 145 | 100 | 4 | 541 | 21 | 690 | 27 | 303 | 12 | 782 | 31 | 253 | 10 | UD7+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 6-55 | 55 | 131 | 10 | 36 | 21 | 13 | 189 | 100 | 4 | 541 | 21 | 689 | 27 | 303 | 12 | 783 | 31 | 253 | 10 | UD15+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 9-55 | 55 | 131 | 9 | 32 | 19 | 7 | 102 | 100 | 4 | 618 | 24 | 765 | 30 | 303 | 12 | 855 | 34 | 226 | 9 | UD15+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 9-55 | 55 | 131 | 12 | 43 | 25 | 10 | 145 | 100 | 4 | 618 | 24 | 765 | 30 | 303 | 12 | 855 | 34 | 226 | 9 | UD15+ | 106 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 9-55 | 55 | 131 | 15 | 54 | 32 | 13 | 189 | 100 | 4 | 618 | 24 | 765 | 30 | 303 | 12 | 855 | 34 | 226 | 9 | UD15+ | 116 | 4 | 1/2″ | 1/2″ | 1/2″ | 1/2″ |
| SMD 13-55 | 55 | 131 | 13 | 47 | 28 | 7 | 102 | 126 | 5 | 602 | 24 | 764 | 30 | 315 | 12 | 856 | 34 | 239 | 9 | UD15+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 13-55 | 55 | 131 | 18 | 65 | 38 | 10 | 145 | 126 | 5 | 602 | 24 | 764 | 30 | 315 | 12 | 856 | 34 | 239 | 9 | UD15+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 13-55 | 55 | 131 | 23 | 83 | 49 | 13 | 189 | 126 | 5 | 602 | 24 | 764 | 30 | 368 | 14 | 911 | 36 | 239 | 9 | UD25+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 17-55 | 55 | 131 | 17 | 61 | 36 | 7 | 102 | 126 | 5 | 602 | 24 | 764 | 30 | 368 | 14 | 911 | 36 | 239 | 9 | UD25+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 17-55 | 55 | 131 | 22 | 79 | 47 | 10 | 145 | 126 | 5 | 602 | 24 | 764 | 30 | 368 | 14 | 911 | 36 | 239 | 9 | UD25+ | 106 | 4 | 1/2″ | 1 2″ | 1″ | 1″ |
| SMD 17-55 | 55 | 131 | 28 | 101 | 59 | 13 | 189 | 126 | 5 | 602 | 24 | 764 | 30 | 368 | 14 | 911 | 36 | 239 | 9 | UD25+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 23-55 | 55 | 131 | 23 | 83 | 49 | 7 | 102 | 126 | 5 | 602 | 24 | 764 | 30 | 368 | 14 | 911 | 36 | 239 | 9 | UD25+ | 106 | 4 | 1/2″ | 1/2″ | 1″ | 1″ |
| SMD 23-55 | 55 | 131 | 35 | 126 | 74 | 10 | 145 | 126 | 5 | 602 | 24 | 830 | 33 | 421 | 17 | 956 | 38 | 236 | 9 | UD45+ | 135 | 5 | 3/4″ | 3/4″ | 1″ | 1″ |
| SMD 23-55 | 55 | 131 | 45 | 162 | 95 | 13 | 189 | 126 | 5 | 602 | 24 | 830 | 33 | 421 | 17 | 956 | 38 | 236 | 9 | UD45+ | 135 | 5 | 3/4″ | 3/4″ | 1″ | 1″ |
Notes:
For higher flows, please contact your Atlas Copco sales representative.
For lower ambient temperatures down to -20°C/-5°F, please contact your Atlas Copco sales representative.
Reference conditions:
Air inlet temperature: 35°C
Air ambient temperature: 25°C
Inlet relative humidity: 100%
Inlet pressure: variant dependent (7, 10 or 13 bar)
Operating limits:
Maximum compressed air inlet pressure: 13 bar(g)
Minimum compressed air inlet pressure: 4 bar(g)
Maximum ambient temperature: 60°C
Minimum ambient temperature: 1°C
Maximum compressed air inlet temperature: 60°C
Minimum compressed air inlet temperature: 1°C
• For pressures other than the ones mentioned above, correction factors give the correct flow
• Pressure dew point suppression of 15ºC (27ºF) to as much as 95ºC (171ºF) is possible. Correction factors give the correct flows
• The performance of the SMD membrane dryer range is independent ofambient temperature and inlet temperature, it is only dependent ofinlet dew point.
Atlas Copco SMD Membrane Air Dryers Brochure-EN
| Weight | 2.00 kg |
|---|---|
| Dimensions | 70 × 15 × 15 cm |
| PDPs (°C) | 55 °C |
| PDPs (°F) | 131 °F |
| Capacity (l/s) | 2 – 45 l/s |
| Capacity (m³/h) | 5 – 162 m³/h |
| Capacity (cfm) | 3 – 95 cfm |
| Pressure (bar) | 7 – 13 bar |
| Pressure (psi) | 102 – 189 psi |
| Country of Origin | BE |
| Lead Time | 12-16 Weeks |
| MOQ | 1 Unit |
| Packaging | Wooden Crate |
| Product Quality | 100% Genuine, 100% Original, Brand New |
| Transaction Mode | CFR, CIF, CIP, CPT, DAP, DDP, EXW, FCA |
Sajad –
Good quality
We’ve run the Atlas Copco SMD 2-55 membrane air dryer for six months with zero issues. No moving parts means virtually no maintenance, and it holds a consistent dew point reliably. The low pressure drop helps cut energy waste, and quiet operation lets us mount it right beside our production line without extra noise control.
Umer –
Trustworthy Supplier~
Great choice for our electrical-free, explosion-safe workstation. The SMD 6-55 needs no power supply and fits neatly in our tight piping layout. Moisture removal stays steady even with fluctuating ambient temperatures. Simple setup and dependable dry air protect our pneumatic tools from rust and water damage daily.
James –
Well worth from Sekes.
Upgraded from an older membrane dryer to the Atlas Copco SMD 2-55 and immediately noticed lower purge-air loss. It delivers clean, dry compressed air consistently, safeguarding our sensitive spray and test equipment. Solid build quality, straightforward installation, and predictable performance make it well worth the investment.