ENS Series

Compact and reliable entry-level model

ENS is a compact model that specializes in basic functions.
It is limited to sterilization only and does not have any functions such as keeping warm/drying. This allows for low-cost implementation.

Its slim shape allows for space-saving installation, and it is available in sizes ranging from tabletop to 50L.

By optimizing the heating conditions, processing time has been reduced compared to conventional machines. ( Some models)

Heating optimization (ENS-50)

Optimizing heating conditions has made it possible to reduce operating time.


Available in a variety of sizes

We offer a variety of can body sizes, allowing you to choose the optimal size based on your application and processing volume.


Simple interface

A simple design where you simply press START/STOP after setting the temperature and time.
With minimal keystrokes, anyone can easily operate it.

Compact design

We pursue a compact design to achieve maximum installation efficiency even in limited spaces.


Cost performance

It offers excellent performance while being within an easy-to-implement price range.

Reduced driving time (ENS-50)

Is the sterilization process becoming a bottleneck.
This could solve problems such as the need to increase the number of operations per day due to the high volume of processing, or long waiting times for sterilization.
The success or failure of sterilization depends on temperature and time. While this cannot be shortened, the total operating time can be reduced if the temperature rise time and cooling time before removal are shortened.
With this in mind, we increased the capacity of the heater for heating and the fan for cooling, achieving a 30% time reduction each. ( Compared to our company)

Compact design

With limited space, you may be having trouble finding a place to store your autoclave.
I was determined to make it as small as possible.
For example, you want to perform small-scale processing such as petri, or install it in a limited space. We will meet your requests such as the following.

Available in a variety of sizes

I just want to sterilize it a little.
I want to perform a wide variety of sterilizations. I will address those concerns.
We offer a variety of sizes to suit your needs.
For example, please choose a method that suits your application, ranging from small-scale sterilization of simple film-like culture media to medium-scale sterilization using instruments or flasks containing liquids.

ENS-12
Film-like simple culture medium
80×100mm 1 box capacity can be processed
ENS-50
500mL Erlenmeyer flask
Holds 12 bottles
ENS-12 ENS-22 ENS-37 ENS-50
Can diameter x effective height (mm) Φ230×210 Φ230×460 Φ300×460 Φ300×630
Can volume (L) 12 22 37 50
External dimensions WxDxH (mm) 380×340×430 380×340×780 450×390×820 450×390×970
Weight (kg) 20 28 41 47
Sterilization temperature (℃) 110~125 (common to all models)
Sterilization time (minutes:seconds) 00:01 ~ 99:59 (common to all models)
Maximum pressure (MPa) 0.180
Driving patterns Sterilization (common to all models)
Required power supply AC100V, 15A or higher AC200V, 30A or more

Once you set the sterilization temperature and time using the temperature regulator, it's easy to operate by simply pressing START/STOP.
It can be used for various sterilization methods.
For example, for the preparation of sterile water, liquid media such as LB medium, NB medium, TSB medium, BHI medium, and EC broth, buffer solutions, physiological saline, and other materials, as well as for the sterilization of liquid samples.
For sterilizing glassware such as test tubes, beakers, and flasks.
For sterilizing metal instruments such as tweezers, scissors, spatulas, and wire loops.
It can also be used for sterilizing waste materials such as used petri dishes and simple film-like culture media.

Overpressure prevention function

An alarm will sound and stop heating if the can temperature exceeds the set pressure while driving.
This can easily occur if too much sterile material is packed into the container.

Sensor break detection

An alarm will sound and stop operation if the temperature sensor fails.
Instruments crucial for temperature control prevent equipment from running out of control.

Anti-firing function

If there is a water shortage, an alarm will sound and the system will automatically shut off.
This prevents overheating due to dry lighting and ensures the safety of the equipment and its users.

Safety Breaker

Turns the main power supply off when the equipment's electrical circuit is shorted out.
It prevents other malfunctions caused by short circuits.

Pressure safety valve

It prevents the pressure from rising by allowing steam from inside the can to escape when the pressure rises to an abnormal level. This is a dual safety device that activates in the unlikely event that the overpressure prevention device malfunctions and the equipment goes out of control.

High altitude support (altitude 1000m or more)

At high altitudes, a decrease in air pressure can lower the boiling point of water, which can affect the temperature and pressure control of the autoclave.
This series allows for setting changes depending on altitude conditions, ensuring proper sterilization conditions even in high-altitude environments and achieving stable operation.

Wire mesh basket

Do not place sterile materials directly into the can body. This not only causes malfunctions but also leads to serious accidents. Be sure to place the sterile material in the wire mesh basket.

This series comes standard with the following wire mesh baskets:
To sterilize liquids, place the container in a wire mesh basket or purchase a sterile container (accessory) sold separately.

ENS-12 ENS-22 ENS-37 ENS-50
Inner diameter × height (mm) Φ210×200 Φ210×200 Φ270×200 Φ270×300
Number 1 2 2 2
Product number BW2120 BW2120 BW2720 BW2730

Number of inserts

Threaded bottle (ISO standard)
100ml
Φ56×100mm
250ml
Φ70×138mm
500ml
Φ86×176mm
1000ml
Φ101×225mm
Kago diameter
Φ210
7 5 bottles 4 pieces 2 bottles
Kago diameter
Φ270
14 pieces 9 pieces 7 4 pieces

Number of inserts

ENS-12 7 5 bottles 3 bottles -
ENS-22 14 pieces 10 pieces 6 2 pieces ※1
ENS-37 28 bottles 18 bottles 14 pieces 4 pieces ※1
ESN-50 28 (42) books ※2 18(27) book※2 14(21) book※2 8 pieces
   ※1 Wire mesh baskets cannot be stacked.
The numbers in ※2 ( ) indicate standard wire baskets sold separately for accessory baskets
   This represents the total number of loads when replaced (200mm in height).

Wire mesh basket (non-standard)

We offer a variety of sizes. Please select based on the size of the sterilized items.
In that case, please pay attention to the diameter and effective height of the can body.

Product number Inner diameter × height (mm)
BW2120 Φ210×200
BW2140 Φ210×400
BW2720 Φ270×200
BW2730 Φ270×300
BW2740 Φ270×400

Kago bottom storage dish

Sterilizing waste materials such as used petri dishes can contaminate equipment by spilling molten liquid.
To prevent equipment failure due to this, you can store the liquid in the bottom of the wire mesh basket and take it in.

Product number Inner diameter × height (mm) Compatible basket interior dimensions
DH2036 Φ203×60 Φ210
DH2676 Φ267×60 Φ270

Sterile container

When sterilizing large amounts of liquids, viscous substances, or soil,
Use a sterile container.
However, unlike wire mesh baskets, when used in layers, the bottom container
It traps air, resulting in poor sterilization.
Always use only one.
※Cannot be used with tabletop model ENS-12

Product number Inner diameter × height (mm)
VN2121 Φ210×210
VN2727 Φ270×270

Why ESTERI?

Sterilization fast, easy, and reliable
Supporting essential hygiene practices in food and medical care
Japan's first sterilizer manufacturer

Over 50 years of experience

Sterilization technology in the laboratory and medical fields that has been developed since 1976

Quality based on international standards

"Manufacturing" that does not depend on individual abilities

Meeting customer needs

Flexible, custom-made solutions tailored to individual needs

To over 80 countries worldwide

Global brand of compact autoclaves

International standards certification obtained

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