HEATLESS AIR DRYERS

Additional Details

SAI Pneumatic's Compact Heatless Air Dryers are advanced, energy-efficient solutions designed to deliver dry and clean compressed air by removing moisture through a regenerative desiccant system. These dryers operate on the principle of adsorption, using activated alumina as the desiccant medium. Moisture-laden compressed air passes through a desiccant-packed tower where water vapor is adsorbed, resulting in air with a dew point as low as -40°C.

The system consists of twin towers operating alternatively—while one tower is drying, the other undergoes regeneration using a portion of the dried purge air. This continuous cycle ensures uninterrupted delivery of dry air and maintains consistent system efficiency.

The dryers feature a compact and space-saving design, making them suitable for installations with limited space. High-quality components such as electronic control timers, long-life pneumatically operated pilot valves, and multi-stage filtration (including pre-filters, oil-removing filters, and after-filters) ensure high performance, durability, and air purity up to 5 microns.

With minimal pressure drop and reduced purge loss, these dryers significantly lower operating costs. Ideal for applications where consistent dry air is critical—such as CNC machining, painting, pharmaceutical manufacturing, food processing, and electronics—SAI’s Compact Heatless Air Dryers guarantee reliability, efficiency, and cost-effectiveness.

Technical Specifications

• Operating Principle: Absorption using desiccant media; regenerative process through purging

• Cycle Time: Typically 10 minutes; adjustable based on specific requirements

• Pressure Drop: Minimized through low bed velocities and uniform desiccant packing

• Purge Loss: Optimized to reduce operating costs

• Safety Features: Compressor safety maintained through low/high constant pressure

Applications

• Automobile Industries

• Cement Industries

• Chemical Plants

• CNC Machine Shops

• Foundries

• Food Processing Units

• Garment Units

• General Engineering

• Pharmaceuticals

• Painting Units

• Paper Mills

• Packaging Units

• Power Coating Units

• Pet Bottle Units

• Rice Mills

• Sugar Industries

• Textile Processing Units