Model Specifications
The SMA catalog lists 14 micro-heat regeneration dryer models, covering 3.8–100 Nm³/min. Confirm capacity at your actual pressure, inlet temperature and required pressure dew point.
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| Model | Capacity (Nm³/min) | Listed Power (kW) | Weight (kg) | Connection | L × W × H (mm) |
|---|---|---|---|---|---|
| SMA038 | 3.8 | 2 | 350 | G1.5 | 960 × 600 × 1520 |
| SMA065 | 6.5 | 3 | 420 | G1.5 | 1010 × 600 × 1930 |
| SMA085 | 8.5 | 3 | 485 | G1.5 | 1120 × 600 × 1970 |
| SMA115 | 11.5 | 3 | 540 | G2 | 1120 × 700 × 1990 |
| SMA135 | 13.5 | 4 | 580 | G2 | 1230 × 700 × 1990 |
| SMA180 | 18.0 | 6 | 905 | DN65 | 1430 × 900 × 2450 |
| SMA220 | 22.0 | 6 | 1025 | DN65 | 1485 × 900 × 2480 |
| SMA250 | 25.0 | 8 | 1120 | DN80 | 1530 × 900 × 2495 |
| SMA320 | 32.0 | 10 | 1205 | DN80 | 1580 × 1000 × 2550 |
| SMA450 | 45.0 | 12 | 1525 | DN100 | 1835 × 1000 × 2655 |
| SMA550 | 55.0 | 20 | 2350 | DN100 | 2350 × 1105 × 2780 |
| SMA650 | 65.0 | 20 | 2950 | DN100 | 2460 × 1196 × 2800 |
| SMA850 | 85.0 | 24 | 4170 | DN125 | 2644 × 1366 × 3090 |
| SMA1000 | 100.0 | 30 | 4250 | DN150 | 2644 × 1366 × 3090 |
Catalog Operating Conditions
- Working pressure: 0.6–1.0 MPa.
- Inlet temperature: 0–45°C.
- Pressure dew point: −20°C to −40°C, depending on the selected configuration and operating conditions.
- Regeneration air: catalog range approximately 7%–11%; confirm the actual requirement.
- Inlet oil content: less than 0.1 mg/m³.
- Desiccant: alumina.
- Operating cycle: 2–8 hours.
Electric Heating and Purge Air
One tower dries compressed air while the off-line tower regenerates with electrically heated dry purge air. The towers switch automatically to maintain the air supply.
Heating reduces the purge-air requirement compared with the heatless catalog range of 14%–20%, but adds electrical consumption. Compare heater electricity and the compressor energy used for purge air together; lower purge demand alone is not proof of lower total energy use.
Filtration and Selection
The dryer removes moisture. Oil control depends on upstream separation and filtration; it does not by itself guarantee oil-free air.
- State the usable air flow required after the dryer and the compressor delivery.
- Provide working pressure, highest inlet temperature and target pressure dew point.
- Confirm available 380V / 50Hz / 3PH supply, duty cycle and installation space.
- Describe upstream water separation and oil filtration.
Original Catalog Documents
- Product construction and regeneration principle
- Operating conditions and controller configuration
- Original SMA model data sheet
Compare Heatless and Micro-Heat Drying
Send your flow, pressure, inlet temperature, target dew point and operating hours. We can check the model and regeneration requirements for your application.
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