Refrigerated Air Dryers
+3°C dew point16 bar600–24000 L/min
Pure air. Reliable performance.
The Dynamik RD Series refrigerated air dryers deliver reliable moisture removal and clean compressed air for industrial applications. Built for high efficiency and low pressure drop, every unit holds a stable +3°C pressure dew point for years of dependable service.
Fifteen models from 600 to 24000 L/min pair with every compressor in the Dynamik range — premium components at a competitive price, backed by technical support from the UNITECH IKK network across Saudi Arabia.
- Dew point+3°C stable
- Max pressure16 bar
- Capacity range0.6–24 m³/min
- ControllerDMC35 digital
- Condensate drainAutomatic
- Heat exchangerHigh-efficiency aluminium
- +3°C PDP
- 16 bar
- 15 models
- Auto drain
- Low pressure drop

Dynamik RD range
Fifteen models in three cabinet sizes. Rated flows are at 7 bar, 25°C ambient, 35°C inlet and +3°C dew point — use the sizing guide below to correct for your site.
| Model | V / Ph / Hz | L/min | m³/min | CFM | Max bar | Connection | L×W×H (mm) | Weight (kg) | Details |
|---|---|---|---|---|---|---|---|---|---|
| Compact series · RD6–RD32 | |||||||||
| RD6 | 230/1/50-60 | 600 | 0.6 | 21 | 16 | 1/2" | 360×430×770 | 16 | |
| RD9 | 230/1/50-60 | 900 | 0.9 | 32 | 16 | 1/2" | 360×430×770 | 18 | |
| RD12 | 230/1/50-60 | 1200 | 1.2 | 42 | 16 | 1" | 360×430×770 | 35 | |
| RD18 | 230/1/50-60 | 1800 | 1.8 | 64 | 16 | 1" | 360×430×770 | 36 | |
| RD25 | 230/1/50-60 | 2500 | 2.5 | 88 | 16 | 1" | 360×430×770 | 38 | |
| RD32 | 230/1/60 | 3200 | 3.2 | 113 | 16 | 1" | 360×430×770 | 45 | |
| Standard series · RD43–RD105 | |||||||||
| RD43 | 230/1/60 | 4300 | 4.3 | 152 | 16 | 1 1/2" | 535×580×910 | 53 | |
| RD52 | 230/1/60 | 5200 | 5.2 | 184 | 16 | 1 1/2" | 535×580×910 | 73 | |
| RD63 | 230/1/60 | 6300 | 6.3 | 223 | 16 | 1 1/2" | 535×580×910 | 73 | |
| RD80 | 230/1/60 | 8000 | 8.0 | 283 | 16 | 1 1/2" | 535×580×910 | 83 | |
| RD105 | 230/1/60 | 10500 | 10.5 | 371 | 16 | 1 1/2" | 535×580×910 | 85 | |
| High-capacity series · RD135–RD240 | |||||||||
| RD135 | 230/1/60 | 13500 | 13.5 | 477 | 16 | 2" | 535×580×910 | 106 | |
| RD168 | 230/1/60 | 18000 | 18.0 | 636 | 16 | 2" | 905×686×1077 | 123 | |
| RD190 | 230/1/60 | 19000 | 19.0 | 671 | 16 | 2 1/2" | 905×686×1077 | 140 | |
| RD240 | 380/3/60 | 24000 | 24.0 | 848 | 16 | 2 1/2" | 905×686×1077 | 178 | |
RD240 runs on 380 V / 3-phase / 60 Hz (KSA spec). All other models run on 230 V / 1-phase.
Explore moreBuilt for pure, dry air
+3°C pressure dew point
Stable dew point across the full load range — ISO 8573-1 Class 4 air quality.
16 bar working pressure
Heavy-duty construction handles any standard plant-air system pressure.
DMC35 digital controller
Digital display with dew-point monitoring, alarms and energy-saving mode.
Aluminium heat exchanger
High-efficiency exchanger with low pressure drop, so the compressor works less.
Automatic condensate drain
Removes condensate automatically — no manual draining.
Energy efficient
The refrigerant circuit cycles to match demand and draws power only when drying is needed.
Compact design
Footprints from 360 × 430 mm fit beside the compressor in any plant room.
Easy maintenance
Front-access service points and a washable condenser filter cut service time.
How to size your dryer
Heat and high inlet temperatures reduce what a dryer can handle. Correct the compressor flow with the factors below, then pick the first model that covers it.
Compressor FAD
Take your compressor's free air delivery in L/min.
PLUS 22-10 → 3000 L/minApply site factors
Divide the FAD by F1 × F2 × F3 × F4 for your pressure, ambient, inlet and dew point.
3000 ÷ (1.05 × 0.79 × 0.67 × 1.00) = 5398Pick your RD model
Choose the first model whose rated flow is equal to or above the result.
5398 L/min → RD63
- Value
- 4
- 5
- 6
- 7
- 8
- 10
- 12
- 14
- Factor F1
- 0.77
- 0.86
- 0.93
- 1.00
- 1.05
- 1.14
- 1.21
- 1.27
- Value
- ≤25
- 30
- 35
- 40
- 45
- Factor F2
- 1.00
- 0.95
- 0.88
- 0.79
- 0.68
- Value
- ≤30
- 35
- 40
- 45
- 50
- 55
- Factor F3
- 1.11
- 1.00
- 0.81
- 0.67
- 0.55
- 0.45
- Value
- 3
- 5
- 7
- 10
- Factor F4
- 1.00
- 1.11
- 1.19
- 1.38
RD18 = 1800 · RD25 = 2500 · RD32 = 3200 · RD43 = 4300 · RD52 = 5200 · RD63 = 6300 · RD80 = 8000 · RD105 = 10500 · RD135 = 13500 · RD168 = 18000 · RD190 = 19000 · RD240 = 24000 L/min
Air dryer questions, answered
Compressed air leaves the compressor hot and saturated with moisture. As it cools in pipes and tanks, water condenses — causing rust, damaged tools, spoiled paint jobs and contaminated products. A refrigerated dryer removes this moisture before it reaches your air lines.
It is the temperature at which moisture starts to condense in your air lines. A +3°C PDP (ISO 8573-1 Class 4) means no liquid water as long as the pipework stays above 3°C, which suits general industrial applications.
Usually, yes. Hot plant rooms and high inlet temperatures reduce dryer capacity, so correct the compressor FAD with the sizing factors above. In hot Gulf summers with plant rooms at 45°C or more, add extra margin.
After the air receiver and before filtration and the point of use, with clean, cool intake air and space around the cabinet for ventilation. Keep it away from direct sun and hot equipment.
Not sure which dryer fits your compressor?
Tell us your compressor model or air flow and our engineers will confirm the right RD size and installation layout, with a same-day response.