Ultra.dry compact the heatless- adsorption dryer

Why adsorption dryers?
Compressed air is used in almost all areas of industrial manufacturing as a source of energy or processing. The atmospheric air drawn in contains harmful substances, dirt particles and moisture in the form of water vapour, which condenses out in compressed air pipes and can lead to considerable costs (corrosion, freezing etc.). These costs are avoided by using the Ultra.dry compact. As a complete system, the Ultra.dry compact consists of a prefilter with automatic condensate drain, adsorption dryer and an integrated dust filter. The pre-filter retains solids and condensate up to a residual oil content of 0.03 mg/m3. The subsequent adsorption dryer removes moisture from the compressed air up to a pressure dew point of -40 ºC. Finally, the dust filter retains any particles resulting from the drying adsorbent.

ultra.dry compact - quality and security

Easy Installation:

ultra.dry compact is series produced and prepared for the widest variety of installation and applications. The multipart distributor enables the compressed air entry to be from left or right. The pre and after filters can be installed either beside, in front of or at the rear of the dryer. Integrated broadband for power supply 100–240 VAC, 12–24 VDC, 50–60 Hz.

Ultra.pure – the classic line of heatless adsorption dryers

Ultrafilter’s high-efficiency adsorption dryers remove moisture from the compressed air and therefore guarantee an efficient and secure production process. State-of-the-art technology and specially selected materials are essential for operational safety.

The Ultra.pure is equipped with a cutting edge control system, pre and after-filters, condensate drain and silencer, providing maximum efficiency and operational safety, coupled with low operational costs. With a diverse range of application areas, the Ultra.pure can be tailored to most individual requirements.

The time-controlled adsorption dryer, without capacity control, operates on a predetermined cycle, irrespective of whether the desiccant might be loaded to the maximum. The dryer’s requirement for regeneration air (energy consumption of compressed air) therefore remains constant.


The Ultra.conomy capacity control reduces the energy comsumption by 70% The water load of the dryer depends on the actual operational conditions. If the inlet conditions, airflow, pressure or ambient temperatures vary, the quantity of the water loading will also vary. With a continual dewpoint measurement at the outlet of the dryer, the newly developed “Ultra.conomy“ control will determine the actual amount of moisture that enters the dryer and will assess the optimum time when the dryer requires regenerating whilst maintaining a constant selected dewpoint.



This leads to considerable savings in regeneration air. The following example demonstrates this: a dryer designed for 100 m3/h, 35°C inlet temperature and 7 bar (g) operational pressure uses approx. 15 m3/h regeneration air during a fixed cycle. At an average compressed air requirement of 60%, an average inlet temperature of 30°C and average pressure of 7.2 bar the water load still only amounts to approx. 45% of the original value. On average the dryer is now only using 6.75 m3/h and is therefore saving 8.25 m3 per hour. According to the compressor type and condition this is equivalent to a power consumption of up to 1 kW. At a full cost price of 2 cents per m3 of generated compressed air and 8,000 operating hours per year the saving amounts to Euro 1320.