Products

Heatless Air Dryer

Desiccant Compressed Air Dryer for Ultra-Dry Air Applications

Athena Instruments introduces the ATHD Series Heatless Air Dryer, a robust and precision-engineered desiccant compressed air drying system specifically designed to remove moisture from compressed air and deliver ultra-dry air for critical industrial and instrumentation applications. Built with a twin-tower adsorption design and filled with high-quality Activated Alumina or Molecular Sieves, the dryer ensures reliable moisture removal, continuous operation, and consistent compressed air quality. Utilizing Pressure Swing Adsorption (PSA) Technology, the ATHD Series is widely used across pharmaceutical, automotive, food & beverage, spray painting, powder coating, process instrumentation, hospitals, and general manufacturing industries where moisture-free compressed air is essential.

Available in multiple flow capacities from 5 CFM to 500 CFM, the ATHD Series is designed to achieve a pressure dew point of −40°C while operating within a working pressure range of 4–12 Bar. The system incorporates a 0.1-micron coalescing pre-filter , 20-micron inbuilt post filter, automatic tower changeover, and external purge control to ensure dependable drying performance with low power consumption and minimal maintenance. Designed to deliver compressed air quality in accordance with ISO 8573-1 Table 3, Class 2 / Class 3, the ATHD Series provides a reliable solution for demanding industrial compressed air systems.

Product Models & Specifications

Model

Flow Capacity (CFM)

Connection (BSP-F)

Dimensions (H × L × D) mm

Approx. Weight (kg)

ATHD-05 5 ½" 570 × 240 × 100 12
ATHD-10 10 ½" 670 × 240 × 100 15
ATHD-20 20 ½" 990 × 240 × 100 20

ATHD-30

30 ½" 900 × 350 × 150 31
ATHD-40 40 ½" 1100 × 350 × 150 35
ATHD-70 70 ¾" 1530 × 590 × 220 100
ATHD-100 100 1" 1650 × 800 × 800 130
ATHD-150 150 1" 1850 × 800 × 800 300
ATHD-250 250 1½" 2100 × 1225 × 800 800
ATHD-300 300 1½" 2100 × 1225 × 800 800
ATHD-400 400 2" 2000 × 1200 × 800 800
1500

500

2" 2500 × 1400 × 800

ATHD-500

Model

Flow Capacity (CFM)

Working Pressure Range 4 to 12 Bar
Working Temperature Range 5°C to 45°C
Pre Filter 0.1 Micron (Coalescing Type)
Post Filter 20 Micron (Inbuilt)
Purge Loss 10 to 12%
Pressure Dew Point -40°C
Voltage Range 90V to 260V, 50 Hz, Single Phase

Key Features

Pressure Swing Adsorption Technology
Utilizes twin desiccant towers filled with Activated Alumina or Molecular Sieves to achieve efficient moisture removal and a pressure dew point of −40°C.
High-Efficiency Filtration
Incorporates a 0.1-micron coalescing pre-filter and 20-micron inbuilt post filter to remove dust, oil, bulk liquids, and residual contaminants from the compressed air stream.
Automatic Tower Regeneration
Features automatic tower changeover with external purge control for continuous drying performance and efficient desiccant regeneration.
Low Power Consumption
Engineered with an energy-efficient control system that minimizes operating costs while maintaining reliable dryer performance.
Compact & Reliable Construction
Compact, lightweight design with corrosion-resistant metallic tubing for easy installation and dependable long-term operation.
Superior Compressed Air Quality
Delivers compressed air quality conforming to ISO 8573-1 Table 3, Class 2 / Class 3 for critical industrial and instrumentation applications.

Applications

Pharmaceutical Manufacturing
Provides ultra-dry compressed air for pharmaceutical production, packaging, and clean process applications.
Automotive & Engineering
Supplies moisture-free compressed air for pneumatic tools, assembly lines, and industrial automation systems.
Spray Painting & Powder Coating
Prevents moisture contamination during painting and coating operations, ensuring high-quality surface finishes.
Food & Beverage Processing
Delivers dry compressed air for food processing, beverage production, and packaging applications.
Instrumentation & Industrial Utilities
Suitable for hospitals, process instrumentation, tool rooms, and general industrial compressed air systems requiring low-moisture air.

Additional Technical Highlights

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Drying Technology

Pressure Swing Adsorption (PSA) system with twin desiccant towers for continuous moisture removal.

check-mark

Desiccant Media

High-quality Activated Alumina or Molecular Sieves for efficient water adsorption.

check-mark

Pressure Dew Point

Delivers a pressure dew point of −40°C for critical compressed air applications.

check-mark

Filtration System

Equipped with a 0.1-micron coalescing pre-filter and 20-micron inbuilt post filter.

check-mark

Automatic Regeneration

Timed automatic tower switching with external purge control for uninterrupted operation.

check-mark

Compressed Air Quality

Designed to achieve compressed air quality in accordance with ISO 8573-1 Table 3, Class 2 / Class 3.

check-mark

Industrial Construction

Compact, corrosion-resistant design suitable for continuous industrial operation.

Why Choose Athena's Heatless Air Dryer?

Reliable Moisture Removal

Achieves a pressure dew point of −40°C for applications requiring ultra-dry compressed air.

Continuous Dry Air Supply

Twin-tower adsorption system ensures uninterrupted compressed air drying.

Energy-Efficient Operation

Low power consumption and optimized purge control reduce operating costs.

Compact & Easy Installation

Space-saving construction with simple installation and low maintenance requirements.

Wide Capacity Range

Available in flow capacities from 5 CFM to 500 CFM for a variety of industrial applications.

Industrial Reliability

Engineered for dependable long-term operation in pharmaceutical, automotive, food processing, and instrumentation industries.

Trusted Performance, Certified Quality

Athena’s ATHD Series Heatless Air Dryers are engineered to deliver reliable moisture removal and consistent compressed air quality for critical industrial applications. Designed with proven Pressure Swing Adsorption technology and high-quality desiccant media, they provide dependable performance, energy-efficient operation, and long service life for demanding compressed air systems.

Need help finding a solution?

Share your requirements

    Products

    Heatless Air Dryer

    Desiccant Compressed Air Dryer for Ultra-Dry Air Applications

    Athena Instruments introduces the ATHD Series Heatless Air Dryer, a robust and precision-engineered desiccant compressed air drying system specifically designed to remove moisture from compressed air and deliver ultra-dry air for critical industrial and instrumentation applications. Built with a twin-tower adsorption design and filled with high-quality Activated Alumina or Molecular Sieves, the dryer ensures reliable moisture removal, continuous operation, and consistent compressed air quality. Utilizing Pressure Swing Adsorption (PSA) Technology, the ATHD Series is widely used across pharmaceutical, automotive, food & beverage, spray painting, powder coating, process instrumentation, hospitals, and general manufacturing industries where moisture-free compressed air is essential.

    Available in multiple flow capacities from 5 CFM to 500 CFM, the ATHD Series is designed to achieve a pressure dew point of −40°C while operating within a working pressure range of 4–12 Bar. The system incorporates a 0.1-micron coalescing pre-filter , 20-micron inbuilt post filter, automatic tower changeover, and external purge control to ensure dependable drying performance with low power consumption and minimal maintenance. Designed to deliver compressed air quality in accordance with ISO 8573-1 Table 3, Class 2 / Class 3, the ATHD Series provides a reliable solution for demanding industrial compressed air systems.

    Product Models & Specifications

    Model

    Flow Capacity (CFM)

    Connection (BSP-F)

    Dimensions (H × L × D) mm

    Approx. Weight (kg)

    ATHD-05 5 ½" 570 × 240 × 100 12
    ATHD-10 10 ½" 670 × 240 × 100 15
    ATHD-20 20 ½" 990 × 240 × 100 20

    ATHD-30

    30 ½" 900 × 350 × 150 31
    ATHD-40 40 ½" 1100 × 350 × 150 35
    ATHD-70 70 ¾" 1530 × 590 × 220 100
    ATHD-100 100 1" 1650 × 800 × 800 130
    ATHD-150 150 1" 1850 × 800 × 800 300
    ATHD-250 250 1½" 2100 × 1225 × 800 800
    ATHD-300 300 1½" 2100 × 1225 × 800 800
    ATHD-400 400 2" 2000 × 1200 × 800 800
    1500

    500

    2" 2500 × 1400 × 800

    ATHD-500

    Model

    Flow Capacity (CFM)

    Working Pressure Range 4 to 12 Bar
    Working Temperature Range 5°C to 45°C
    Pre Filter 0.1 Micron (Coalescing Type)
    Post Filter 20 Micron (Inbuilt)
    Purge Loss 10 to 12%
    Pressure Dew Point -40°C
    Voltage Range 90V to 260V, 50 Hz, Single Phase

    Key Features

    Pressure Swing Adsorption Technology
    Utilizes twin desiccant towers filled with Activated Alumina or Molecular Sieves to achieve efficient moisture removal and a pressure dew point of −40°C.
    High-Efficiency Filtration
    Incorporates a 0.1-micron coalescing pre-filter and 20-micron inbuilt post filter to remove dust, oil, bulk liquids, and residual contaminants from the compressed air stream.
    Automatic Tower Regeneration
    Features automatic tower changeover with external purge control for continuous drying performance and efficient desiccant regeneration.
    Low Power Consumption
    Engineered with an energy-efficient control system that minimizes operating costs while maintaining reliable dryer performance.
    Compact & Reliable Construction
    Compact, lightweight design with corrosion-resistant metallic tubing for easy installation and dependable long-term operation.
    Superior Compressed Air Quality
    Delivers compressed air quality conforming to ISO 8573-1 Table 3, Class 2 / Class 3 for critical industrial and instrumentation applications.

    Applications

    Pharmaceutical Manufacturing
    Provides ultra-dry compressed air for pharmaceutical production, packaging, and clean process applications.
    Automotive & Engineering
    Supplies moisture-free compressed air for pneumatic tools, assembly lines, and industrial automation systems.
    Spray Painting & Powder Coating
    Prevents moisture contamination during painting and coating operations, ensuring high-quality surface finishes.
    Food & Beverage Processing
    Delivers dry compressed air for food processing, beverage production, and packaging applications.
    Instrumentation & Industrial Utilities
    Suitable for hospitals, process instrumentation, tool rooms, and general industrial compressed air systems requiring low-moisture air.

    Additional Technical Highlights

    check-mark

    Drying Technology

    Pressure Swing Adsorption (PSA) system with twin desiccant towers for continuous moisture removal.

    check-mark

    Desiccant Media

    High-quality Activated Alumina or Molecular Sieves for efficient water adsorption.

    check-mark

    Pressure Dew Point

    Delivers a pressure dew point of −40°C for critical compressed air applications.

    check-mark

    Filtration System

    Equipped with a 0.1-micron coalescing pre-filter and 20-micron inbuilt post filter.

    check-mark

    Automatic Regeneration

    Timed automatic tower switching with external purge control for uninterrupted operation.

    check-mark

    Compressed Air Quality

    Designed to achieve compressed air quality in accordance with ISO 8573-1 Table 3, Class 2 / Class 3.

    check-mark

    Industrial Construction

    Compact, corrosion-resistant design suitable for continuous industrial operation.

    Why Choose Athena's Heatless Air Dryer?

    Reliable Moisture Removal

    Achieves a pressure dew point of −40°C for applications requiring ultra-dry compressed air.

    Continuous Dry Air Supply

    Twin-tower adsorption system ensures uninterrupted compressed air drying.

    Energy-Efficient Operation

    Low power consumption and optimized purge control reduce operating costs.

    Compact & Easy Installation

    Space-saving construction with simple installation and low maintenance requirements.

    Wide Capacity Range

    Available in flow capacities from 5 CFM to 500 CFM for a variety of industrial applications.

    Industrial Reliability

    Engineered for dependable long-term operation in pharmaceutical, automotive, food processing, and instrumentation industries.

    Trusted Performance, Certified Quality

    Athena’s ATHD Series Heatless Air Dryers are engineered to deliver reliable moisture removal and consistent compressed air quality for critical industrial applications. Designed with proven Pressure Swing Adsorption technology and high-quality desiccant media, they provide dependable performance, energy-efficient operation, and long service life for demanding compressed air systems.

    Need help finding a solution?

    Share your requirements