Adsorption Dryer — Heatless

Heatless adsorption dryers with regeneration via purge air (12–15% of capacity). Pressure dew point -20°C.

What is an adsorption dryer?

A heatless adsorption dryer dries compressed air to extremely low moisture levels (pressure dew point -20°C) using adsorbents such as activated alumina or molecular sieve. The technology is necessary when ordinary refrigeration drying is insufficient — for example in cold environments, cold storage or processes in the food and pharmaceutical industries where moisture can cause serious quality problems.

The system operates with two towers alternating between drying and regeneration. The heatless variant regenerates the desiccant by using a portion of the already dried compressed air (12–15% of capacity), providing a simple and reliable design without the need for external heating. Inlet oil content below 0.01 ppm is required for optimal performance.

With capacities from 1.2 to 130 m³/min there are models for everything from smaller installations to large industrial systems. The heatless adsorption dryer is the cost-effective choice when a pressure dew point of -20°C is sufficient and operational simplicity is a priority.

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Adsorption Dryer — Heatless — 1
Adsorption Dryer — Heatless — 2

Key Features

Pressure dew point: -20°C
Purge air: 12–15%
Adsorbent: Activated alumina or molecular sieve
Inlet oil content: <0.01 ppm
Cycle time: T=4–20 min

Certifications

CEISO 9001

Models & Specifications

Art.nrPressureCapacityWeightDimensionsPdp
31-110006–10 bar1.2 m³/min120 kg910×400×1620 mm-20°C
31-110006–10 bar2.4 m³/min145 kg910×400×1530 mm-20°C
31-110016–10 bar3.6 m³/min160 kg910×400×1860 mm-20°C
31-110036–10 bar6.0 m³/min245 kg1000×450×1860 mm-20°C
31-110046–10 bar10.0 m³/min405 kg1200×500×2020 mm-20°C
31-110066–10 bar15.0 m³/min560 kg1200×500×2420 mm-20°C
31-110076–10 bar20.0 m³/min620 kg1400×650×2560 mm-20°C
31-110086–10 bar30.0 m³/min1 170 kg1400×750×2630 mm-20°C
31-110106–10 bar40.0 m³/min1 460 kg1400×800×2750 mm-20°C
31-110116–10 bar50.0 m³/min1 820 kg1750×800×2800 mm-20°C
31-110126–10 bar65.0 m³/min2 020 kg2000×900×2850 mm-20°C
31-110136–10 bar80.0 m³/min2 410 kg2100×1050×2980 mm-20°C
31-110146–10 bar100.0 m³/min2 800 kg2300×1650×3300 mm-20°C
31-110156–10 bar130.0 m³/min4 020 kg2600×1650×3300 mm-20°C
31-110026–10 bar3.8 Nm³/min——-20°C
31-110056–10 bar10.7 Nm³/min——-20°C
31-110096–10 bar28.0 Nm³/min——-20°C
31-110166–10 bar130.0 Nm³/min——-20°C

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