Compressed Air Dryers
Refrigerant Compressed Air Dryer
Cycling Refrigeration Dryers
Energy Saving CDF-ES Series
High efficiency air treatment
The cycling dryer is designed to deliver the lowest cost solution by focusing on all of the cost contributors. In a typical compressed air dryer, the refrigerant compressor runs continuously regardless of demand. With a cycling dryer, circulating glycol cools the compressed air allowing the refrigerant compressor to turn-off during low demands, to save energy and cost
The cycling dryer is ideal for partial airflow demand, where the compressed air demand on the network goes up and down over time.
These all new dryers deliver consistent high performance along side optimised energy efficiency, increased environmental credentials and a lower total cost of ownership.
They are a step ahead of both the EU and the competition – supporting sustainability with low GWP refrigerants for ISO Class 4 (+3°C PDP) markets.
Compared to previous models, this next-generation of dryers deliver:
Reduced power consumption of up to 10%
Up to 27% lower pressure drop
Significant footprint reduction of up to 40%
Reliable and Simplistic Design
Microprocessor control and no-loss Smart Drain increase reliability, while dryer self-regulation, plug-and-play installation and readily available parts make for simple and easy maintenance.
Innovative Control Panel
With all the main functions you would expect to control and monitor the unit:
Anti freeze mode – shuts dryer off to avoid icing
Alarm display: Dew Point, high/low temperature, High ambient temperature
Remote ON/OFF optional up to CD160F-ES, standard from CD216F-ES
Alarm history
Condensate drain management
Ready for Industrial IOT with adoption of iConn, remote monitoring, preventive maintenance, free cloud portal
New 3-layer Heat Exchangers
Designed and developed in our laboratories to deliver the highest levels of performance with the lowest pressure drop. The adoption of the new CompAir heat exchanger has enabled the removal of the inlet and outlet headers.
A compressed air dryer is a device that removes water vapor from compressed air. When air is compressed, its temperature rises and moisture condenses into liquid water. Dryers remove this moisture before the air is used.
Common Types
Refrigerated dryers
Desiccant (adsorption) dryers
Membrane dryers
Deliquescent dryers
Industries like manufacturing, pharmaceuticals, food processing, and automotive plants commonly use them.
2. Refrigerant Compressed Air Dryer
A refrigerant compressed air dryer works similar to an air conditioner.
Working Principle
Hot compressed air enters the dryer.
Air passes through a heat exchanger.
A refrigeration circuit cools the air to around 3–5°C.
Moisture condenses into water.
A separator removes the water, and dry air exits.
Key Features
✔ Energy-efficient
✔ Low maintenance
✔ Dew point around +3°C
✔ Suitable for general industrial applications
Common Uses
Workshops
Manufacturing plants
Pneumatic tool systems
3. Cycling Refrigeration Dryers
A cycling refrigerated dryer is an advanced version of a refrigerated dryer designed to save energy.
How It Works
Instead of running continuously, the refrigeration compressor cycles ON and OFF based on the cooling demand.
Operating Process
Thermal storage (often glycol or a thermal mass) stores cooling energy.
When the temperature rises, the compressor turns ON.
When the required temperature is reached, the compressor turns OFF.
Advantages
✔ Energy saving (30–50%)
✔ Less wear on compressor
✔ Stable dew point
✔ Good for variable air demand
Typical Applications
Factories with fluctuating air consumption
Automotive plants
CNC machining shops
✅ Quick Comparison
Feature Refrigerant Dryer Cycling Refrigeration Dryer
Compressor Operation Continuous On/Off based on demand
Energy Consumption Higher Lower
Best For Constant load systems Variable load systems
Cost Lower initial cost Higher initial cost
💡 Simple Rule
Constant air demand → Standard refrigerated dryer
Variable air demand → Cycling refrigerated dryer
If you want, I can also explain:
Non-Cycling Refrigerated Air Dryers
Desiccant Air Dryers (-40°C dew point)
How to select the right air dryer for a compressor system.
