Oilless Desiccant Dryers

Nitroxtec Oilless Desiccant Dryers deliver ultra-clean, oil- and moisture-free compressed air with a dew point down to -40 °C and oil content as low as 0.003 mg/m³. Featuring an integrated desiccant and activated carbon system, zero-loss condensate drainage, and automatic PLC control, the system operates continuously with only 10–15% purge air loss, making it ideal for critical industries requiring ISO 8573-1:2010 Class 1 oil and Class 2 moisture compliance.

Nitroxtec Oilless Desiccant Dryers

Oil-Free, Ultra-Dry Air for Critical Applications

Nitroxtec Oilless Desiccant Dryers are designed to deliver  ultra-clean, dry, and oil-free compressed air, meeting the demands of high-precision industries like pharmaceuticals, electronics, food processing, and clean manufacturing. With a combination of high-performance desiccant drying and activated carbon filtration, the system achieves ISO 8573-1:2010 Class 1 for oil and Class 2 for water—ensuring the highest levels of air purity.

These dryers provide dew points as low as -40 °C and outlet oil content as low as 0.003 mg/m³. Operating 24/7 with fully automatic PLC control, they regenerate desiccant efficiently while consuming only 10–15% purge air, helping to reduce operational costs. The system also features a zero air loss condensate drain, ensuring maximum compressed air utilization.


Key Features

Feature Benefit
0.003 mg/m³ Outlet Oil Content Ultra-clean compressed air exceeds standard industry requirements.
Dew Point Down to -40 °C Prevents condensation and corrosion, ensuring system integrity.
Purge Air Loss 10–15% Efficient regeneration minimizes energy waste and operational costs.
Integrated Desiccant + Activated Carbon System Dual-stage removal of water vapor and oil vapor.
Zero Air Loss Condensate Drain Prevents waste and protects overall system efficiency.
Automatic PLC Control Manages regeneration, dew point, and system logic in real time.
Optional Dew Point Sensor Enables adaptive operation and energy savings.
Color Touchscreen Display Provides real-time monitoring and alarm notifications.
24/7 Continuous Operation Stable and reliable for around-the-clock applications.
Max. Operating Pressure: 20 bar Suitable for demanding industrial compressed air systems.

Working Principle

The system operates in two filtration phases:

  1. Moisture Removal – Compressed air passes through a tower filled with activated alumina, which absorbs water vapor to achieve a dew point of -40 °C.

  2. Oil Vapor Removal – Air is then routed through an activated carbon module that captures residual oil and hydrocarbon vapors down to 0.003 mg/m³.

The desiccant is regenerated automatically using purge air, which accounts for 10–15% of the total air volume, and the process is managed by a PLC for precision timing, dew point control, and energy-saving modes. The system runs continuously, with the towers alternating between drying and regeneration.


Why Choose Nitroxtec Oilless Desiccant Dryers?

Meets ISO 8573-1:2010 Class 1 Oil & Class 2 Moisture
Efficient Operation – Only 10–15% purge air loss during regeneration
Zero-Loss Drain System – Prevents unnecessary compressed air discharge
Long Desiccant Life – High-quality alumina and carbon reduce replacement frequency
Remote Monitoring Options – Modbus-ready for integration with factory systems
Durable & Industrial-Grade – Designed for non-stop use in demanding environments


Applications

Pharmaceuticals & Cleanrooms – Oil- and moisture-free air for sterile processes
Electronics Manufacturing – Protects sensitive components from contamination
Food & Beverage – Compliant compressed air for packaging and processing lines
Paint & Automotive Finishing – Ensures surface quality and prevents defects
Precision Manufacturing – Clean, dry air for CNC and pneumatic machinery


Uncompromising Air Quality. Unmatched Efficiency.

With Nitroxtec Oilless Desiccant Dryers, you gain full control over air quality, energy efficiency, and long-term performance. Designed with high-purity filtration, smart automation, and low purge loss operation, these systems ensure that your critical processes remain protected, precise, and compliant.

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