Overview
The DS-200 adsorption air dryer is designed to remove moisture from compressed air systems using advanced pressure swing adsorption (PSA) technology. It provides a stable and continuous supply of dry air with a dew point as low as −40°C, ensuring reliable performance in precision and industrial environments.
Its compact dual-tower structure makes it ideal for integration into laboratory equipment, automation systems, and OEM machinery where space and air quality are critical.
Model Comparison
Swipe across the table to compare models.
| Model | DS-200 | DS-500 |
|---|---|---|
| Flow Rate | 200 NL/min | 500 NL/min |
| Dew Point | ≤ -40°C | ≤ -40°C |
| Working Pressure | 5–8 bar | 5–8 bar |
| Power Consumption | 15 W | 20 W |
| Voltage | 220V AC | 220V AC (110V optional) |
| Connection Size | G1/4″ | G1/2″ |
| Regeneration Air Consumption | — | 6–10% |
| Dimensions | 230 × 89 × 361 mm | 315 × 125 × 580 mm |
| Recommended Use | Compact systems / OEM integration | Higher flow industrial systems |
Technical Specifications
| Parameter | Value |
|---|---|
| Model | DS-200 |
| Voltage | 220V AC |
| Current | 0.1 A |
| Power | 15 W |
| Flow Rate | 200 NL/min |
| Dew Point | ≤ -40°C |
| Working Pressure | 5-8 Bar |
| Inlet Connection | G1/4″ |
| Outlet Connection | G1/4″ |
| Max Inlet Temperature | ≤30°C |
| Ambient Temperature | Room Temperature |
| Regeneration Time | 30 – 999s (Adjustable) |
| Re-pressurization Time | 0 – 999s (Adjustable) |
| Tube Diameter | Φ6.5 mm |
| Dimensions | 230 × 89 × 361 mm |
Dimensions & Installation
Key Components
1. Pressure Gauge
Displays internal pressure of the adsorption tanks
2. Display Panel
Shows operating status and system parameters
3. Silencer
Exhausts purge air during regeneration
4 & 5. Adsorption Tank
Contains desiccant for moisture adsorption
5. Solenoid Valve
Outlet for condensate discharge.
6. Air Inlet/Outlet Ports
Connections for compressed air input and output
Installation Requirements
Proper installation is essential to ensure optimal performance and long-term reliability of the desiccant air dryer.
– Install the unit in a dry and well-ventilated indoor environment.
– Avoid exposure to high temperatures, direct sunlight, or corrosive conditions.
– Place the unit on a stable and level surface or mount securely inside equipment.
– Ensure the inlet air temperature does not exceed 30°C for optimal drying performance.
– Connect to the correct power supply (220V AC) and ensure proper grounding.
– Install a pre-filter upstream to remove oil, water, and particles before the dryer.
– Check all air connections for leaks before operation.
– Allow sufficient space around the unit for maintenance and heat dissipation.
– The system typically reaches a stable dew point after a short startup period.
Applications
The DS-200 is suitable for applications requiring clean and dry compressed air:
– Laboratory instruments and analytical equipment
– Automation and control equipment
– Medical and dental equipment
– Precision manufacturing and electronics
– Laser cutting and optical devices
Typical compressed air system configuration
Air Compressor → Pre-filter → Refrigerated Air Dryer → Desiccant Air Dryer(this product) → Fine Filter → End Application
The DS-200 is the desiccant drying stage in the example above. Select upstream filtration and any pre-drying equipment to suit the inlet air conditions. For a higher rated flow, compare the 500 NL/min DS-500 heatless desiccant dryer.
Why Use a Desiccant Air Dryer?
Moisture in compressed air can cause serious issues in industrial systems, including corrosion, equipment damage, and reduced product quality.
In applications requiring high air purity, standard refrigerated air dryers are often not sufficient. A desiccant air dryer is required to achieve ultra-low dew points and ensure reliable system performance.
The DS-200 is designed to provide a stable dew point of ≤ −40°C, making it suitable for precision applications where dry air is critical.
How It Works (PSA Technology)
The DS-200 uses Pressure Swing Adsorption (PSA) technology to remove moisture from compressed air.
Moisture is adsorbed by molecular sieve desiccants inside the adsorption towers. The system operates with two towers alternating between:
- Adsorption Phase – drying compressed air
- Regeneration Phase – removing moisture from the desiccant
During regeneration, a portion of dry air expands to atmospheric pressure, becoming even drier and extracting moisture from the saturated desiccant.
This continuous dual-tower cycle ensures a stable supply of dry air without the need for external heating.
Project support
CE certified. Used by universities and industrial clients. OEM / ODM customization available.
Need Bulk Pricing or Custom Solutions?
For larger orders, custom requirements, or project-based applications, please contact our team for a tailored quotation and technical support.
Frequently Asked Questions
What pressure dew point can the DS-200 achieve?
The DS-200 is designed for pressure dew points down to -40°C under specified operating conditions.
What is the rated flow of the DS-200?
The rated flow is 200 NL/min for compact point-of-use compressed-air applications.
How does the heatless drying cycle work?
Twin desiccant columns alternate between drying and regeneration using pressure swing adsorption, without an external heater.
Can the DS-200 be integrated into OEM equipment?
Yes. It suits analyzers, laboratories and moisture-sensitive equipment. Review the OEM air-dryer selection guide.
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