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Class N Gravity Autoclaves

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Class N gravity autoclaves represent the most basic and economical category of steam sterilizers. Classified under the EN 13060 standard, the 'N' designation signifies "Naked Solid Instruments Only." This means they operate using gravity displacement, relying solely on the pressure and density difference between steam and air to push air out of the chamber. Crucially, they lack a vacuum pump, making them unsuitable for sterilizing porous loads (like textiles) or hollow instruments (like dental handpieces or cannulas), as they cannot effectively remove the trapped air from these items. Class N units are typically small (under 18L) and are used for unwrapped, solid instruments only, where steam can easily reach all surfaces. While simple and reliable for their limited scope, their application in modern healthcare is restricted, often serving small practices with only basic, solid tools or as supplementary sterilizers.

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Specification

Sterilizer Class Class N (Gravity Displacement)
Air Removal Method Passive (Gravity Displacement Only)
Load Compatibility Unwrapped Solid Instruments Only
Sterilization Temp 121°C or 134°C
Chamber Capacity Small Benchtop Units (Typically 8L to 18L)
Drying Cycle Passive (Heat-Drying Only, Often Inefficient)
Controls Simple Digital or Electromechanical Control
Prohibition Not Suitable for Hollow Loads, Porous Loads, or Wrapped Items

Application

Class N gravity autoclaves are found in small, basic healthcare settings, such as small general practices, tattoo studios, and nail salons that primarily sterilize basic, unwrapped solid tools (e.g., forceps, scissors). They may also be used in non-medical laboratories for simple glassware sterilization. They are typically positioned in an area with a sink and power outlet. Their limited capacity and functionality mean they are generally not suitable for mainstream dental or surgical clinics due to the prevalence of hollow instruments and the need to sterilize packaged loads. In environments that do use them, the instruments must be used immediately after the cycle, as the lack of a drying vacuum and sealed packaging means the items cannot be stored as sterile. The low cost and simple operation are their main appeal for users with minimal sterilization demands.

Transaction Details

Class N autoclaves are high-volume, cost-competitive products. Payment terms are typically 100% T/T in advance for individual units, with competitive T/T deposit terms for bulk distributor orders. Due to their small size, air express shipping is a viable option for fast delivery, while sea freight is standard for cost-saving. Packaging is less complex than Class B, often relying on high-density foam within sturdy cartons. Lead times are short, typically 2-4 weeks due to high production volume. We offer the lowest price tiers for this category. Buyers must be clearly educated on the limitations of Class N autoclaves to ensure they meet their local regulatory requirements. The warranty is standard, covering basic components. We emphasize the necessity of using only distilled water to protect the heating element and pressure vessel from scale formation.

FAQ

  • Q: Can I put a packaged instrument in a Class N autoclave?
  • A: No. Class N is not validated to remove air from packaged items or porous materials (like the paper side of a pouch). The packaging would trap air, leading to sterilization failure. Only Class B or S is suitable for packaged loads.
  • Q: What is the primary risk of using a Class N unit?
  • A: The primary risk is the false assumption of sterility when processing unsuitable loads, particularly dental handpieces or other hollow/cannulated items, which will retain air pockets and not be sterilized.
  • Q: Can a Class N unit be used for liquids?
  • A: Yes, Class N can be used for liquids, but it requires manual operation to control the exhaust phase to prevent boil-over, and specialized laboratory autoclaves are generally preferred for bulk liquid processing.
Recommended LINS: Class N Autoclaves Class B Autoclaves Class S Autoclaves Class B Dental Autoclaves

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86-15728040705
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86-15728040705
86-18957491906