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Dry Heat Sterilizer

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Dry Heat sterilization is generally used for materials that tolerate high temperatures such as metal or glass. It is the method of choice whenever possible for Depyrogenation as the glass surface, being in direct contact with the product, can be the origin of pyrogenic contamination and dry air is an effective agent for destroying pyrogens. It also has the advantage that the processed material emerges dry at the end of the cycle.

Operating Temperature :
  • It employs higher temperatures up to 300°C and requires exposure time up to 2 hours, depending upon the temperature employed.

Applications :
  • Glass Bottles, Vials, Ampoules, Containers
  • Stainless steel and aluminium containers
  • Powders like sulphonamides and talcum powder

Operation :
  • Load is arranged to ensure uninterrupted air flow.
  • DHS may be pre- heated for materials with poor heat conductivity.
  • The temperature is allowed to reduce up to 55°C-60°C prior to removal of sterilized material.

Design And Functional Features :
  • Chamber is manufactured in SS316L. Fully welded with round corners.
  • The doors are of hinged type, equipped with double edge seal gasket for maximum safety
  • For operation, control and data acquisition a PLC is provided. HMI facilitates interface between operator and equipment.
  • Equipments are available with single door as well as double door pass through arrangement.
  • Bio seal flange to seal the equipment into the building wall can be provided
  • HEPA filters are installed in the fresh air, recirculation and exhaust module. In addition, 0.5 micron “Micro B” filter is installed as a pre-filter to the Fresh Air HEPA
  • Three modules for air handling
    1. Fresh air (air intake)
    2. Recirculation
    3. Exhaust

A choice of quality

Sterile healthcare represents one of the most advanced and quality alternatives in the field of sterilization equipment under cGMP guidelines. To ensure Telstar equipment meets your requirements we work in partnership with you and a dedicated team follow your order as a unique project. We develop specific Quality Plan (DQ, IQ and OQ) and undertake factory acceptance testing (FAT).

Durability, Ease of Maintenance

All parts submitted to high temperatures are made of AISI 316L stainless steel, with an external cladding in AISI 304. Thermal insulation with rock wool achieves better yields and energy savings.

Ergonomic and Reliable Design

Standard models feature chamber dimensions designed to provide easy handling of the load and maximum air filtration area. The loading cart has to be sized for being transported by one person and the load should be fully processed under ISO-5 air flow.

Productivity, Monitoring, Operational Safety

A differential pressure transducer controls the chamber overpressure in relation to the surrounding room. A separate one will control the chamber filter pressure drop and provides an automatic warning in case the HEPA filters become blocked. There is a side port for Pt100 probes for validation purposes.

Control systems

The unit is supplied with our complete SCADA control system PharmaSter ®. This system includes an industrial PC with touch-screen colour display. The software allows not only for supervision and control of the process, but also compiling, storing and processing the whole information in a batch oriented mode. The system is fulfilling 21 CFR Part 11 guidelines.

Control systems

The unit is PLC controlled, which contains the operating software and parameters for creating and storing recipes or cycles. The control panel features:

  • Colour touch-screen that displays the main functions and performs as human machine interface (HMI).
  • Control lights: Locked doors, alarm, cycle running, end of cycle.
  • Push buttons: Open/close door, alarm acknowledgement.
  • Graphic register.