Dry Heat Sterilizer
Dry Heat Sterilizer Introduction: The Dry Heat Sterilizer is a technologically advanced apparatus designed for the effective decontamination and sterilization of heat-stable items through the application of controlled, high-temperature dry air. Unlike steam sterilization (autoclaving), this process eliminates microbial life, including spores, solely via oxidative degradation under elevated dry temperatures, typically ranging from 160°C (320°F) to 250°C (482°F) or higher, depending on cycle parameters and load requirements.
Principle & Process: Sterilization is achieved by exposing items to uniformly distributed, high-temperature air within an insulated, sealed chamber constructed from corrosion-resistant materials (e.g., 304/316 stainless steel). Precise electronic controls manage critical parameters: temperature ramp-up, holding time (dwell period), and controlled cooling. Validated cycles ensure the required Sterility Assurance Level (SAL) of 10^-6 is consistently met.
Key Features & Specifications:
- Temperature Range: Wide operating range (e.g., Ambient +10°C to 300°C) with high uniformity (±1°C to ±5°C typical).
- Chamber: Robust stainless steel construction, often with forced air convection (gravity or mechanical) for optimal heat distribution.
- Control System: Programmable Logic Controller (PLC) or microprocessor with digital display, data logging (cycle records), multiple pre-set/validatable cycles, and password protection.
- Safety: Comprehensive safety interlocks (door, over-temperature), alarms, and independent temperature monitoring.
- Validation: Supports Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) protocols. Documentation package available.
- Compliance: Manufactured and tested in accordance with relevant international standards, including but not limited to ISO 20857 (Sterilization of health care products - Dry heat), EN 285 (Large Steam Sterilizers - principles apply partially), cGMP (21 CFR Part 820), and CE/IEC safety standards. RoHS compliant.
Primary Applications: Essential for sterilizing items incompatible with steam or moisture, including:
- Laboratory glassware (pipettes, flasks, bottles)
- Surgical and dental metal instruments (especially those with sharp edges or lumens)
- Pharmaceutical powders, oils, ointments, and glass containers
- Components in medical device manufacturing
- Certain anhydrous electronic components
- Wrapping materials (paper, foil)
Advantages:
- Eliminates corrosion and dulling of instruments associated with steam.
- Suitable for moisture-sensitive materials (powders, oils).
- Effective for penetrating dry materials and sealed containers.
- Generally simpler chamber design and operation than pressurized steam autoclaves.
Target Sectors: Pharmaceutical Manufacturing, Biotechnology Research & Development, Medical Device Production, Hospitals & Dental Clinics (Central Sterile Services Departments - CSSD), Academic & Quality Control Laboratories, and Electronics Manufacturing.





