Used for sterilizing various foods that are sealed and require high-temperature (115°C to 134°C) sterilization to achieve an extended shelf life, including but not limited to:
Counter-Pressure High-Temperature Autoclave
Primary goal
Prevent the rupture or deformation of sealed liquid containers due to differential pressure during the sterilization and, most critically, the cooling phases.
Counter-Pressure Principle
Inject and precisely control compressed air into the sterilization chamber. During the sterilization and especially the cooling phases, the external air pressure is dynamically maintained to be slightly higher than or equal to the internal vapor pressure of the liquid containers, thereby counteracting the internal pressure and preserving the container's integrity.
Steam-Air Mixture Sterilization
Guarantees temperature uniformity within the chamber, improving sterilization reliability while simultaneously maintaining the counter-pressure.
Functions and Applications
Focuses on heat-sensitive and sealed loads
Sterilizing large-volume, heat-sensitive liquid culture media while preventing boil-over or degradation from excessive heating time.
Used for the commercial sterilization of canned foods, flexible pouch beverages, or other hermetically sealed food products to extend shelf life.
Applicable to any fragile container or item that requires high-temperature, high-pressure sterilization but is sensitive to pressure changes during the process.
Counter-Pressure Autoclave vs. Pasteurizer
Reverse Pressure Autoclave → Sterilization: The goal is commercial sterility. This means the process must completely destroy all microorganisms, including highly heat-resistant bacterial spores. Only products meeting the sterility standard can be stored safely at room temperature for long periods.
Pasteurizer → Pasteurization/Disinfection: The goal is to reduce the number of microorganisms to a safe level, primarily by killing major pathogens (e.g., Mycobacterium tuberculosis in milk). It does not kill all bacterial spores. Since some microorganisms remain, the product requires refrigeration to suppress their growth.
Reverse Pressure Autoclave: Uses high temperatures above 105℃ in the form of saturated steam, which is only possible under high pressure.
Pasteurizer: Uses "mild" heating temperatures, typically below 100℃.
Shelf Life and Storage Conditions:
Products treated by Reverse Pressure Autoclaving (like canned goods or shelf-stable pouches) are commercially sterile and can be stored and transported at ambient temperature for a long duration (typically 6 months to 5 years).
Products treated by Pasteurization (like fresh milk) still contain residual, non-pathogenic microorganisms and spores. They must be stored under refrigeration (typically 4℃ or 40℉) to slow down microbial reproduction, resulting in a much shorter shelf life.
Specifications
100L
150L
SKU
100F
150F
Inner chamber capacity
φ450x620mm
φ500x747mm
Working pressure
33psi (0.23mpa)
33psi (0.23mpa)
Max temperature
134℃
134℃
Temp. setting range
115~134℃ (238~273°F)
115~134℃ (238~273°F)
Heat average
≤0.5℃
≤0.5℃
Sterilization timer range
1~999mins
1~999mins
Pressure setting range
0~200kPa
0~200kPa
Water source pressure
≥0.3MPa
≥0.3MPa
Compressed air pressure
≥0.3MPa
≥0.3MPa
Air compressor
Stanadard
Stanadard
Baskets quantity
2*(φ425x275mm)
2*(φ475x365mm)
Exhaust method
Automatic exhaust
Automatic exhaust
Drainage
Manual drainage
Manual drainage
Power
4.5kw, single phase, 220V
6.5kw, single phase, 220V
Plug type
Three-pronged, NEMA 10-50P (Removable)
Three-pronged, NEMA 10-50P (Removable)
Overall dimensions
650x617x1173mm
716x649x1293mm
G.W / N.W
105/80kg
122/92kg
100L
SKU
100F
Inner chamber capacity
φ450x620mm
Working pressure
33psi (0.23mpa)
Max temperature
134℃
Temp. setting range
115~134℃ (238~273°F)
Heat average
≤0.5℃
Sterilization timer range
1~999mins
Pressure setting range
0~200kPa
Water source pressure
≥0.3MPa
Compressed air pressure
≥0.3MPa
Air compressor
Stanadard
Baskets quantity
2*(φ425x275mm)
Exhaust method
Automatic exhaust
Drainage
Manual drainage
Power
4.5kw, single phase, 220V
Plug type
Three-pronged, NEMA 10-50P (Removable)
Overall dimensions
650x617x1173mm
G.W / N.W
105/80kg
150L
SKU
150F
Inner chamber capacity
φ500x747mm
Working pressure
33psi (0.23mpa)
Max temperature
134℃
Temp. setting range
115~134℃ (238~273°F)
Heat average
≤0.5℃
Sterilization timer range
1~999mins
Pressure setting range
0~200kPa
Water source pressure
≥0.3MPa
Compressed air pressure
≥0.3MPa
Air compressor
Stanadard
Baskets quantity
2*(φ475x365mm)
Exhaust method
Automatic exhaust
Drainage
Manual drainage
Power
6.5kw, single phase, 220V
Plug type
Three-pronged, NEMA 10-50P (Removable)
Overall dimensions
716x649x1293mm
G.W / N.W
122/92kg
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