Adsorption Dryer
Compressor Systems

Desiccant Air Dryer
Technical Specification
Model: DSD Series
1. Product Overview
A Desiccant Air Dryer works on the twin-tower alternating adsorption/regeneration principle: a desiccant (activated alumina or molecular sieve) adsorbs moisture from the compressed air, lowering the pressure dew point to -40°C or -70°C to meet the most demanding industrial drying requirements. While one tower adsorbs moisture, the desiccant in the other tower is regenerated by heat or without heat, and the two towers switch over automatically on a timer to deliver a continuous air supply. A Desiccant Air Dryer is essential equipment for obtaining ultra-dry compressed air in the pharmaceutical, electronics and coating industries.
Key Features
- Dew point -40°C/-70°C
- Twin-tower continuous operation
- Heatless/Heated/Blower purge regeneration
- Flow 0.5–100 m³/min
- PLC automatic switching
- Desiccant life 3–5 years
2. Working Principle
Adsorption Drying
Regeneration Methods
3. System Classification
By Regeneration
By Dew Point
4. Detailed Technical Parameters
Basic Parameters
Parameters
5. Core Component Selection
Adsorption Tower
Desiccant
Switching Valves
Regeneration System
Control System
6. Typical Application Fields
Pharmaceutical
Electronics
Coating
Instrumentation
7. Design Standards & Certifications
Compliant with standards
1. GB/T 10893-2015
2. ISO 7183
3. ISO 9001/14001
4. CE
8. Custom Optional Configurations
| Option | Details |
|---|---|
| Flow | 0.5–100 m³/min |
| Dew Point | -40°C/-70°C |
| Regeneration | Heatless/Heated/Blower |
| Desiccant | Alumina/Molecular sieve |
| Pressure rating | 0.4/0.8/1.0/1.5MPa |
| Dew Point Monitor | Online (optional) |
9. Warranty Terms
| Status | Warranty | Scope |
|---|---|---|
| New | 12 months | Tower, valves, controls |
| Refurbished | 6 months | Valves, controls |
10. Packaging & Delivery
| Item | Packaging |
|---|---|
| Main Unit | Anti-rust, wooden crate |
| Desiccant | Sealed packaging |
Lead time: New 15–30 working days.
11. Information Required for Inquiry
Please provide:
Flow
Pressure
Dew point (-40°C/-70°C)
Regeneration method
Inlet temperature
Desiccant preference
Voltage/frequency
New/Refurbished
Delivery terms and port of destination