ASW Series - Terminal sterilization

The sterilization program using superheated water is used mainly for sterilizing large containers, although it can also be used for other types of loads.

The product is treated in counterpressure, in order to avoid deforming or breaking the container. The ASW Series offers a rapid, safe and effective terminal sterilization process for high product throughput.

Water is continuously circulated through the system and cascades over the load using spray nozzles, high capacity pump and large diameter piping to ensure high water flow rates.

Compressed air at overpressure is injected to compensate for the rising temperature and pressure that builds inside the products when heated. The cooling phase brings the product down to ambient temperature by continuously spraying the recirculating water over the load. To assist heat penetration, the load can be rotated during the complete cycle. 

Chamber volume
from 830 litres / 29 cu.ft
to 25.000 litres / 883 cu.ft


    • The machine body and jacket are completely made of AISI 316L stainless-steel.
    • AISI 316L stainless steel piping is connected with ASME tri-clamp connections.
    • The machine body is insulated with ceramic material and with an external cladding of stainless steel.
    • This system ensures the seal of the door in any condition of operation.
    • Energy saving with recirculation water cooling system
    • Flexible RTDs.
    • Equipment is provided with a grounding lug for proper static grounding and seismic compliance if required.
    • The front loading side the machine is provided with the connection ports required for the validation tests.
    • The control system PLC is capable of storing and executing preprogrammed cycles and performing all self-diagnostics cycles.


    Versatile loading/unloading systems and automation: Steelco can provide a range of automated solutions including integration with robotic systems.

    Useful combined solution
    Steelco Group designs combined/modular systems sterilization, where heating and sterilization phases are carried out with saturated steam, like a normal sterilizer, or with a mixture of steam and air in the same autoclave.

    Compliance and guidelines:

    European Directives: 2006/42/EC; 2004/108/EC; 2006/95/EC; 97/23/CE; ATEX 94/9/CE. European Standards: EN 12100-1-2, EN 13857, EN 349, EN 61000-6-II-IV, German version EN 61000-6-4; EN 55011 (ISM); EN 61000-4-II-IV (IEC); AD 2000; EN 60204-1 (IEC 204.1); EN ISO 11135; EN 1422. North American Standards: OSHA; NFPA (when applicable: FDA; UL; ASME). Canadian Standards: CSA; CRN. Russian Standards: GOST.

    Software is developed in compliance with current coding rules and programming and according to standard ISA 88, ISA 95, IEC 61131-3 standard & GAMP 5.

Video Corporate - Steelco

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