Tuttnauer 2340E Benchtop Autoclave

Tuttnauer 2340E Benchtop Autoclave

Laboratories that routinely sterilize instruments, glassware, culture media, liquids, and other heat-resistant materials need an autoclave that provides consistent performance without occupying excessive laboratory space. The refurbished Tuttnauer 2340E Benchtop Autoclave from American Instrument Exchange combines a compact 19-liter chamber with automatic microprocessor-controlled operation, adjustable sterilization programs, and straightforward 120 V installation.

With a chamber measuring approximately 9 inches in diameter by 18 inches deep, the Tuttnauer 2340E provides useful sterilization capacity while maintaining a footprint suitable for laboratory countertops and smaller work areas. Automatic filling, heating, sterilization, exhaust, and drying functions simplify routine operation, while selectable fast and slow exhaust options allow the autoclave to accommodate both compatible solid materials and liquid loads.

This used Tuttnauer 2340E has been reconditioned, inspected, and tested by American Instrument Exchange and includes a 90-day warranty. For laboratories replacing an aging benchtop sterilizer or adding supplemental autoclave capacity, an in-stock refurbished 2340E can provide a practical alternative to purchasing new equipment.

Tuttnauer 2340E Key Features

• Compact 19-liter benchtop steam autoclave

• Approximately 9-inch-diameter × 18-inch-deep chamber

• Four adjustable sterilization programs

• Sterilization temperatures adjustable from approximately 105°C to 137°C

• Sterilization times programmable up to 59 minutes

• Automatic microprocessor-controlled cycle operation

• Digital display of temperature, pressure, and cycle time

• Fast exhaust for appropriate solid loads

• Slow exhaust for compatible liquid and media loads

• Low-water alarm and automatic low-water protection

• Continuous pressure purge to assist with air removal

• Inline particle filter to help protect valves

• Compact 120 V installation

• Reconditioned, inspected, and tested by American Instrument Exchange

• Includes a 90-day warranty

Overview

The Tuttnauer 2340E is a compact automatic tabletop autoclave designed for laboratories requiring dependable routine steam sterilization without the space or utility demands of a large floor-standing system. Its 19-liter cylindrical chamber provides enough capacity for small batches of laboratory glassware, reusable instruments, culture media, containers, and other compatible materials while remaining compact enough for installation on many laboratory benches.

The 2340E is part of Tuttnauer's long-established 2300/2400 Series of tabletop autoclaves, a product family widely used in laboratory, medical, veterinary, research, and educational environments. The 2340 platform emphasizes a balance of useful chamber depth, straightforward controls, and relatively simple installation. The E version adds microprocessor-controlled automatic operation, allowing the sterilizer to manage multiple stages of the cycle with less operator intervention than manually controlled models.

Four adjustable programs allow users to establish sterilization parameters for different compatible loads. Sterilization temperature can be adjusted from approximately 105°C to 137°C, with sterilization times extending up to 59 minutes. This flexibility makes the 2340E useful for laboratories processing different materials rather than relying on a single fixed operating temperature.

During operation, the digital display continuously communicates cycle information including temperature, pressure, and running time. Automatic control of water filling, heating, sterilization, exhaust, and subsequent cycle stages reduces the number of manual steps required from operators and helps improve consistency between repeated loads.

The system also incorporates standby heating to keep the chamber warm between cycles. In laboratories that run multiple loads throughout the day, maintaining chamber temperature can reduce the time required to begin subsequent processing and support more efficient workflow.

For laboratories replacing a failed benchtop autoclave, the familiar Tuttnauer platform can be particularly attractive. Its combination of compact dimensions, 120 V electrical service, automatic controls, and broad application range makes the 2340E relatively straightforward to incorporate into many existing laboratory spaces.

Tuttnauer 2340E Common Applications

• Sterilization of laboratory glassware

• Processing of reusable laboratory instruments

• Sterilization of compatible culture media

• Processing of aqueous laboratory solutions

• Microbiology research and testing

• Biotechnology laboratory workflows

• Pharmaceutical quality-control support

• Veterinary laboratory applications

• Academic teaching and research laboratories

• Clinical and diagnostic laboratory support

• Food and environmental testing

• General laboratory steam sterilization

Tuttnauer 2340E Ideal Laboratory Environments

The Tuttnauer 2340E is well suited for laboratories that need dependable steam sterilization but do not require the capacity of a large floor-standing autoclave. Its 19-liter chamber provides useful processing space for routine small-batch work while the tabletop configuration allows facilities to preserve floor space.

Microbiology, biotechnology, and academic research laboratories may use the 2340E for preparing culture media, sterilizing reusable glassware, and processing compatible instruments. Pharmaceutical quality-control and testing laboratories can use the autoclave to support microbiological assays, media preparation, and routine laboratory contamination-control procedures.

Veterinary facilities, animal research laboratories, teaching laboratories, food-testing facilities, and environmental laboratories may also benefit from the compact Tuttnauer design. The availability of both fast and slow exhaust modes makes the system more versatile than a sterilizer intended exclusively for solid loads.

The 120 V configuration of this particular unit can also simplify placement. Unlike larger high-capacity autoclaves that may require 208 V or 240 V electrical infrastructure, the available 2340E can be easier to integrate into laboratories with suitable dedicated 120 V service.

Sterilization Capabilities

The Tuttnauer 2340E uses saturated steam under pressure to process compatible heat- and moisture-resistant laboratory materials. Temperature can be programmed from approximately 105°C to 137°C, allowing users to establish appropriate cycle conditions for different loads and laboratory procedures.

Compatible solid loads may include stainless steel instruments, laboratory utensils, and glassware capable of tolerating steam sterilization. The relatively deep 18-inch chamber provides useful space for trays, containers, and elongated laboratory materials that fit through the chamber opening.

The 2340E can also accommodate appropriate liquid loads when suitable containers, volumes, loading practices, temperatures, and exhaust settings are used. Slow exhaust is important when processing liquids because rapid depressurization may cause superheated liquids to boil suddenly, resulting in boil-over, loss of contents, or broken containers.

For compatible solid loads, fast exhaust can shorten the depressurization portion of the cycle and improve turnaround time. Cycle choice should always reflect the material being processed rather than simply selecting the fastest available program.

The autoclave also incorporates a continuous pressure-purge system intended to help remove air pockets from the chamber. Effective air displacement is important because trapped air can reduce steam contact and interfere with heat transfer to portions of the load.

Laboratories remain responsible for developing and validating sterilization cycles appropriate for their particular materials, volumes, container types, biological loads, and quality requirements.

Chamber Capacity and Laboratory Workflow

The Tuttnauer 2340E has a nominal chamber volume of approximately 19 liters, or about 5 gallons. The cylindrical chamber measures roughly 9 inches in diameter by 18 inches deep, providing a useful balance between capacity and overall equipment size.

The chamber is commonly configured with three stainless steel trays. Published specifications list individual tray dimensions of approximately 168 mm wide × 20 mm high × 414 mm deep. The chamber can accommodate two full-size and two half-size standard cassettes, although actual usable capacity depends on the shape and dimensions of the materials being processed.

For laboratories processing small batches several times each day, the 2340E's automatic operation can simplify workflow. Once a suitable program has been selected and the chamber loaded, the microprocessor manages the major cycle stages rather than requiring continuous manual adjustment.

Standby heating helps maintain chamber warmth between cycles, which can be useful in busy facilities where another load is likely to follow soon after the previous cycle. Maintaining readiness can reduce delays associated with repeatedly heating a completely cold chamber.

The 19-liter chamber is best suited for moderate laboratory workloads. Facilities processing large volumes of glassware, multiple liters of media, substantial waste loads, or high daily throughput may benefit from a larger benchtop or floor-standing autoclave. Smaller laboratories, however, may find that the 2340E provides sufficient capacity without requiring unnecessary equipment size or utility infrastructure.

Choosing the Right Laboratory Autoclave

The Tuttnauer 2340E is a strong choice for laboratories that prioritize compact size, automatic operation, flexible cycle programming, and relatively simple electrical installation. Its 19-liter chamber is large enough for many routine research and testing applications while remaining considerably smaller than high-capacity floor models.

The approximately 18-inch chamber depth is particularly useful when evaluating a compact tabletop autoclave. Chamber volume alone does not indicate whether specific containers or instruments will fit, so laboratories should compare the diameter, depth, tray dimensions, and chamber opening with their typical loads before purchase.

The 2340E is also a good candidate for laboratories processing a mixture of solids and liquids. Fast and slow exhaust modes provide greater flexibility than systems intended primarily for one type of load. Users processing liquids should nevertheless consider container volume and required cooling time when estimating daily throughput, since liquid cycles generally require more gradual exhaust and longer turnaround.

Laboratories should also distinguish this gravity-displacement tabletop autoclave from active pre-vacuum sterilizers. The 2340E uses steam displacement and pressure purging rather than a dedicated vacuum pump to remove chamber air. Facilities requiring validated pre-vacuum processing of porous or complex wrapped loads should select a sterilizer specifically designed for those applications.

For laboratories requiring significantly greater capacity, Tuttnauer manufactured related tabletop and floor-standing systems with larger chambers. The 2340E makes the most sense when a compact footprint and moderate batch capacity are more important than maximum throughput.

American Instrument Exchange can help customers compare the Tuttnauer 2340E with other refurbished autoclaves and new Tuttnauer sterilizers based on chamber dimensions, load types, available utilities, laboratory space, throughput requirements, and budget.

Tuttnauer 2340E Key Specifications

Published Tuttnauer specifications vary somewhat by production generation and documentation. In particular, exterior dimensions and certain cycle features may differ between individual 2340E configurations. Customers should confirm the equipment data plate, exact exterior dimensions, electrical requirements, included trays and accessories, and operating configuration of the available unit before purchase.

Installation and Utility Requirements

Compared with a larger floor-standing sterilizer, the Tuttnauer 2340E has relatively straightforward installation requirements. This American Instrument Exchange unit is configured for 120 V electrical service, allowing installation in laboratories with an appropriate dedicated circuit that meets the autoclave's electrical requirements.

The unit does not require a central building steam supply. Water is supplied through the autoclave's internal reservoir, reducing the plumbing infrastructure required for installation. Users should follow Tuttnauer's recommendations for water quality to minimize scale formation and protect the chamber, heating components, valves, and associated plumbing.

Although the autoclave itself is compact, adequate clearance must be provided around the cabinet for ventilation, loading, service access, and opening the chamber door. Buyers should consider the additional depth required when the front door is fully open rather than evaluating only the closed exterior dimensions.

The sterilizer should be installed on a stable laboratory bench capable of supporting the approximately 73-pound empty equipment weight plus water and the maximum anticipated load. The work surface should be level and positioned at a practical height for safe loading and unloading.

Steam and heat are released during operation, so laboratories should also consider room ventilation and avoid locating temperature-sensitive equipment immediately adjacent to the autoclave.

Routine chamber cleaning, reservoir maintenance, inspection of the door gasket, water-quality control, and preventive maintenance can help support reliable long-term performance.

Why Buy a Refurbished Tuttnauer 2340E from American Instrument Exchange?

Tuttnauer tabletop autoclaves are widely used across research, clinical, veterinary, educational, and industrial laboratories, making professionally refurbished models an attractive option for organizations that want proven sterilization technology while controlling equipment costs.

American Instrument Exchange reconditions, inspects, and tests used autoclaves before shipment to verify proper operation. Testing can include heating, temperature and pressure control, timers, exhaust functions, displays, safety systems, alarms, and other operating features applicable to the individual model. Customers with specific testing requirements can discuss those needs with American Instrument Exchange prior to shipment.

For laboratories replacing an autoclave that has failed unexpectedly, equipment availability can also be a major consideration. An in-stock refurbished Tuttnauer 2340E may allow a laboratory to restore routine sterilization capacity considerably faster than waiting for new equipment to become available.

American Instrument Exchange also offers new Tuttnauer autoclaves for facilities that prefer current-generation equipment and factory warranty coverage. Customers can therefore compare new and refurbished options based on budget, delivery timeline, required features, chamber capacity, and long-term equipment strategy.

In addition to autoclaves and sterilizers, American Instrument Exchange supplies complementary laboratory equipment including biosafety cabinets, CO₂ incubators, laboratory refrigerators, freezers, centrifuges, glassware washers, ovens, and other equipment used throughout research and testing facilities.

Frequently Asked Questions

What is the chamber capacity of the Tuttnauer 2340E?

The 2340E has a nominal chamber capacity of approximately 19 liters, or 5 gallons. Its cylindrical chamber measures approximately 9 inches in diameter by 18 inches deep.

What is the difference between the Tuttnauer 2340E and manually controlled Tuttnauer autoclaves?

The 2340E uses microprocessor-controlled automatic operation. Major cycle stages such as filling, heating, sterilization, exhaust, and subsequent cycle functions are controlled automatically, reducing the amount of manual intervention required compared with basic manually controlled sterilizers.

How many sterilization programs does the Tuttnauer 2340E have?

The 2340E provides four adjustable programs. Sterilization temperature can be adjusted from approximately 105°C to 137°C, with sterilization times programmable up to approximately 59 minutes.

Can the Tuttnauer 2340E sterilize liquids and culture media?

Yes, the 2340E can process compatible liquid loads when appropriate containers, loading procedures, temperatures, and slow-exhaust settings are used. Laboratories should develop and validate cycles suitable for their specific liquid volumes and applications.

Can the Tuttnauer 2340E sterilize glassware and instruments?

Yes. Compatible heat- and moisture-resistant glassware and reusable instruments are common applications. Fast exhaust may be appropriate for suitable solid loads when permitted by the laboratory's established sterilization procedure.

Does the Tuttnauer 2340E have a vacuum pump?

The traditional 2340E is a gravity-displacement tabletop autoclave rather than an active pre-vacuum sterilizer. It uses steam displacement and a continuous pressure-purge process to assist with air removal.

How large is the Tuttnauer 2340E?

The American Instrument Exchange listing gives exterior dimensions of approximately 20 inches wide × 20 inches deep × 15 inches high. Published Tuttnauer literature varies somewhat by generation, so customers should confirm the dimensions of the available unit before planning a tight installation.

How many trays fit inside the 2340E?

Published specifications list three trays, each approximately 168 mm wide × 20 mm high × 414 mm deep. Included trays and accessories should be confirmed for the individual unit.

Does the Tuttnauer 2340E require plumbing?

The 2340E uses an internal water reservoir and does not require a central building steam supply. Customers should review water filling, drainage, ventilation, and electrical requirements before installation.

What electrical service does this Tuttnauer 2340E require?

This American Instrument Exchange unit is listed for 120 V operation. The individual equipment data plate should always be checked before installation to confirm voltage, frequency, amperage, and power requirements.

Is the Tuttnauer 2340E suitable for a small microbiology laboratory?

Yes. Its compact footprint, 19-liter chamber, adjustable programs, and ability to process compatible glassware, instruments, media, and liquids make it a practical choice for many smaller microbiology and research laboratories.

Does this refurbished Tuttnauer 2340E include a warranty?

Yes. Unless otherwise specified, this reconditioned Tuttnauer 2340E includes a 90-day warranty from American Instrument Exchange.

Does American Instrument Exchange sell new Tuttnauer autoclaves as well?

Yes. American Instrument Exchange offers both used and refurbished autoclaves and new Tuttnauer sterilizers, allowing laboratories to compare equipment based on chamber capacity, features, budget, warranty preferences, and delivery requirements.