Tuttnauer 2540E Benchtop Autoclave
Shipping
All products ship from our 30,000 sq. ft. Haverhill, MA warehouse
Shipping
All products ship from our 30,000 sq. ft. Haverhill, MA warehouse
Laboratories that need dependable steam sterilization but do not require the features or expense of a current-generation sterilizer may find the older-vintage Tuttnauer 2540E Benchtop Autoclave to be a practical and economical solution. With a 23-liter chamber, automatic electronic controls, multiple trays, and a compact tabletop footprint, the 2540E provides useful sterilization capacity for research laboratories, veterinary facilities, educational institutions, quality-control laboratories, and other environments processing compatible instruments, glassware, media, and liquid loads.
The Tuttnauer 2540E represents an earlier generation of the company’s well-established tabletop autoclave platform. Its design emphasizes straightforward operation, durable construction, and reliable steam sterilization rather than the touchscreen interfaces, advanced data logging, or active vacuum systems found on newer models. For laboratories seeking a proven workhorse sterilizer at a lower acquisition cost, a professionally refurbished 2540E can remain a valuable piece of laboratory equipment.
This older-vintage Tuttnauer 2540E has been reconditioned, inspected, and tested by American Instrument Exchange and includes a 90-day warranty.
23-liter benchtop steam autoclave
Approximately 10-inch-diameter × 18.7-inch-deep chamber
Four stainless steel trays
Automatic electronic cycle control
Adjustable sterilization programs
Suitable for compatible solid and liquid loads
Fast and slow exhaust capabilities
Stainless steel pressure chamber
Digital monitoring of cycle parameters
Compact tabletop footprint
Earlier-generation Tuttnauer platform with straightforward controls
Reconditioned, inspected, and tested by American Instrument Exchange
Includes a 90-day warranty
The Tuttnauer 2540E is an automatic tabletop steam autoclave designed to provide greater chamber capacity than the smaller 2340 series while retaining a footprint suitable for laboratory benchtops. Its 23-liter cylindrical chamber offers additional working volume for laboratories processing larger batches of glassware, instruments, culture vessels, media containers, and other compatible materials.
The 2540E belongs to an earlier generation of Tuttnauer’s long-running electronic tabletop autoclave line. These units were designed around dependable steam sterilization, relatively simple electronic controls, and durable mechanical construction. While newer Tuttnauer autoclaves may incorporate advanced touchscreens, enhanced cycle documentation, USB data export, or active vacuum systems, the older 2540E focuses on the core functions many laboratories still need: heating, sterilization, controlled exhaust, and repeatable cycle operation.
That simplicity can be an advantage for laboratories whose sterilization requirements are well established and do not require extensive automation. A refurbished 2540E may be particularly attractive as a replacement for an existing tabletop autoclave, a secondary sterilizer for a busy laboratory, or an economical unit for facilities that need dependable steam processing without investing in a new premium system.
The chamber diameter is approximately 254 mm, or 10 inches, with a depth of approximately 476 mm, or 18.7 inches. That additional diameter compared with smaller tabletop models can make a meaningful difference when processing larger vessels or multiple trays.
The system was designed to accommodate both suitable solid loads and compatible liquids when appropriate cycles and exhaust settings are used. Fast exhaust can improve turnaround for certain solid loads, while slower exhaust is important when processing liquids to reduce rapid boiling and boil-over during depressurization.
For laboratories purchasing older laboratory equipment, condition matters as much as model specification. American Instrument Exchange reconditions and tests used autoclaves before shipment, helping ensure that the available 2540E is evaluated as an individual piece of equipment rather than sold solely on the reputation of the model name.
Sterilization of laboratory glassware
Processing of reusable metal instruments
Sterilization of compatible microbiological media
Processing of aqueous laboratory solutions
Microbiology research and testing
Veterinary laboratory applications
Academic teaching and research laboratories
Pharmaceutical quality-control support
Food and beverage testing
Environmental testing laboratories
Small-batch biotechnology workflows
General laboratory steam sterilization
The Tuttnauer 2540E is well suited for laboratories that need more capacity than a small tabletop sterilizer but do not require a large floor-standing autoclave. Its 23-liter chamber provides useful batch capacity while maintaining a relatively compact exterior footprint.
Microbiology and academic laboratories may use the 2540E for processing glassware, reusable tools, culture media, and other steam-compatible materials. Veterinary laboratories and animal research facilities may also find the larger chamber useful for routine instrument and laboratory supply processing.
The unit can be a particularly sensible choice for established laboratories whose procedures do not depend on advanced modern software features. Facilities that primarily require repeatable steam sterilization may prefer the straightforward operation of an older electronic autoclave rather than paying for sophisticated connectivity or data-management functions that they do not need.
The 2540E may also serve well as a secondary sterilizer. Busy laboratories sometimes benefit from maintaining a smaller tabletop autoclave for routine loads while reserving a larger sterilizer for bulk processing. Adding a refurbished 2540E can help increase total sterilization capacity without requiring major facility modifications.
Because this is an older-vintage model, laboratories should also consider anticipated usage, serviceability, available replacement parts, and their long-term equipment strategy. American Instrument Exchange can help customers evaluate whether a refurbished legacy model or a new Tuttnauer autoclave is the better fit for their application and budget.
The Tuttnauer 2540E uses saturated steam under pressure to process heat- and moisture-resistant materials. Like other gravity-displacement tabletop autoclaves, it relies on steam entering the chamber and displacing air rather than using an active vacuum pump to evacuate the chamber before sterilization.
Compatible solid loads may include laboratory glassware, stainless steel instruments, metal utensils, and other steam-tolerant materials. The 10-inch-diameter chamber provides useful room for larger loads than smaller 19-liter units while remaining manageable for routine laboratory use.
The 2540E can also be used for compatible liquid and media loads when appropriate cycle parameters and slow-exhaust procedures are followed. Liquid loads require particular care because rapid reduction in chamber pressure can cause superheated liquids to boil vigorously. Slow exhaust allows pressure to decrease more gradually, helping reduce the risk of boil-over, container damage, or loss of media.
Fast exhaust may be used for suitable solid loads when permitted by established procedures. Faster depressurization can help reduce turnaround time when liquids are not present.
As with any steam sterilizer, successful processing depends on appropriate load preparation, container selection, chamber loading, cycle parameters, steam penetration, and validation. Laboratories remain responsible for determining whether the 2540E and its available cycle configuration meet their specific sterilization requirements.
The Tuttnauer 2540E has a nominal chamber capacity of 23 liters. Published chamber dimensions for the 2540 platform are approximately 254 mm in diameter by 476 mm deep, or about 10 inches in diameter by 18.7 inches deep.
Compared with the 19-liter 2340 series, the larger chamber diameter can provide useful additional loading flexibility. Laboratories processing wider bottles, larger flasks, multiple instrument trays, or more substantial batches may find the 2540E a better fit than smaller tabletop autoclaves.
The autoclave accommodates four trays. Published tray dimensions are approximately 168 mm wide × 20 mm high × 414 mm deep, allowing users to organize compatible instruments, glassware, and other materials across several levels within the chamber.
Published specifications also indicate capacity for approximately three full-size and three half-size standard cassettes, although laboratory users should evaluate the actual dimensions of their own materials rather than relying solely on nominal cassette capacity.
For moderate daily workloads, a 23-liter chamber can provide a useful compromise between compact equipment size and processing efficiency. Running somewhat larger loads may reduce the number of cycles required throughout the day compared with a smaller autoclave.
Because this is an older model, however, buyers should think not only about current throughput but also future demand. If sterilization volume is expected to increase substantially, a larger modern benchtop or floor-standing autoclave may provide better long-term capacity.
The Tuttnauer 2540E is a strong choice for laboratories seeking relatively simple automatic steam sterilization, useful 23-liter capacity, and a compact benchtop configuration at a lower acquisition cost than many new systems.
Its larger chamber is one of its primary advantages. Laboratories that find the 19-liter 2340 series slightly too small may benefit from the 2540 platform without moving all the way to a much larger floor model.
The older-vintage design should also be considered carefully. For laboratories that primarily need basic sterilization performance, a professionally refurbished 2540E may provide excellent value. Straightforward electronic controls can be entirely adequate for routine research, educational, veterinary, and quality-control applications.
Facilities that require modern electronic cycle records, network connectivity, current regulatory documentation, active pre-vacuum processing, advanced drying, or other sophisticated features may be better served by a newer Tuttnauer system.
Serviceability is another consideration. Older autoclaves can remain productive for many years when properly maintained, but replacement parts and specific electronic components may become more difficult to source over time. Buyers should therefore weigh initial purchase savings against expected usage and long-term support requirements.
For some laboratories, that tradeoff strongly favors refurbished equipment. A lab that needs a dependable secondary autoclave or a modest-volume sterilizer may have little reason to pay for features it will rarely use. Other facilities may prefer the warranty coverage and current technology of a new Tuttnauer autoclave.
American Instrument Exchange can help customers compare both approaches based on chamber capacity, expected load types, electrical requirements, budget, workflow, and long-term equipment plans.
| Specification | Details |
|---|---|
| Manufacturer | Tuttnauer |
| Model | 2540E |
| Product Series | E Series tabletop autoclave |
| Sterilizer Type | Automatic gravity-displacement benchtop steam autoclave |
| Chamber Capacity | 23 L |
| Chamber Dimensions | Approximately 254 mm diameter × 476 mm deep (10.0 in diameter × 18.7 in deep) |
| Exterior Dimensions | Approximately 508 mm W × 362 mm H × 550 mm D (20.0 × 14.3 × 21.7 in) |
| Chamber Construction | Stainless steel |
| Number of Trays | 4 |
| Tray Dimensions | Approximately 168 mm W × 20 mm H × 414 mm D |
| Standard Cassette Capacity | Approximately 3 full-size and 3 half-size cassettes |
| Sterilization Method | Saturated steam under pressure |
| Air Removal | Gravity displacement / pressure purge |
| Exhaust Modes | Fast and slow exhaust depending on cycle and configuration |
| Control System | Earlier-generation electronic / microprocessor control |
| Electrical Configurations | 120 V or 230 V, 50/60 Hz versions manufactured; verify individual unit |
| Current | Approximately 11.7 A at 120 V / 6 A at 230 V |
| Power Consumption | Approximately 1,400 W |
| Plumbing Requirements | No central building steam supply required |
| Installation Type | Benchtop |
| Weight | Approximately 35 kg (77 lb) |
| Equipment Generation | Older-vintage / legacy model |
| Condition | Used / refurbished |
| Warranty | 90 days |
Specifications have been compiled from Tuttnauer technical literature and information for the individual American Instrument Exchange unit. Because the Tuttnauer 2540E was produced across multiple years and electrical configurations, customers should confirm the data plate, exact exterior dimensions, cycle capabilities, electrical requirements, accessories, trays, and other specifications of the available unit before purchase.
The Tuttnauer 2540E has relatively modest installation requirements compared with larger floor-standing autoclaves. It does not require a central steam supply and is designed for installation on a suitable laboratory bench or equipment surface.
Tuttnauer manufactured the 2540E in both 120 V and 230 V electrical configurations. The available unit's data plate should therefore be checked before purchase to verify voltage, frequency, amperage, and power requirements. An appropriate dedicated circuit should be provided according to the individual configuration.
The sterilizer should be positioned on a stable and level surface capable of supporting the approximately 77-pound empty equipment weight plus water and the anticipated load. Adequate space should be left around the cabinet for ventilation, service access, and safe opening of the front chamber door.
Water quality is important to autoclave longevity. Excessive mineral content can lead to scale accumulation in the chamber, reservoir, heating components, and plumbing. Users should follow appropriate Tuttnauer water-quality recommendations and maintain the reservoir and chamber regularly.
Because this is an older-vintage system, preventive maintenance is especially important. Routine inspection of the door gasket, safety devices, valves, heating system, chamber, reservoir, and associated plumbing can help identify wear before it results in unexpected equipment downtime.
Older laboratory equipment can provide excellent value when the underlying design remains appropriate for the application and the individual unit has been properly evaluated. The Tuttnauer 2540E is a good example: its basic function remains the same as when it was originally manufactured—providing controlled saturated-steam sterilization in a compact 23-liter chamber.
American Instrument Exchange reconditions, inspects, and tests used laboratory autoclaves before shipment. Testing may include chamber heating, temperature and pressure performance, timers, exhaust functions, displays, alarms, door and safety functions, electrical components, and other operating systems applicable to the individual unit.
That inspection process is particularly important with older equipment. Rather than purchasing an unknown legacy autoclave based solely on age or appearance, customers receive a unit that has been evaluated for operation by an experienced laboratory equipment supplier.
A refurbished 2540E can be especially attractive for budget-conscious laboratories, educational institutions, startup research facilities, veterinary applications, or organizations seeking secondary sterilization capacity.
American Instrument Exchange also offers new Tuttnauer autoclaves for customers who would benefit from current-generation controls, modern documentation capabilities, manufacturer warranty coverage, and long-term factory support. Having access to both new and refurbished options allows laboratories to select the equipment that makes the most sense for their actual requirements rather than automatically purchasing the newest system.
Yes. This particular 2540E represents an older generation of Tuttnauer tabletop autoclaves. It uses earlier electronic controls and does not include many of the connectivity, touchscreen, or advanced data-management features found on current-generation laboratory autoclaves.
It can be. Laboratories that primarily need reliable steam sterilization of compatible glassware, instruments, media, and liquids may not require advanced modern features. A properly refurbished 2540E can provide useful sterilization capacity at a significantly lower acquisition cost than many new systems.
The 2540E has a nominal chamber capacity of approximately 23 liters.
The chamber measures approximately 254 mm in diameter by 476 mm deep, or about 10 inches in diameter by 18.7 inches deep.
The primary difference is chamber capacity and diameter. The 2540E provides approximately 23 liters of capacity compared with about 19 liters for the 2340E, making the 2540E more suitable for somewhat larger or wider loads.
Published specifications list four trays measuring approximately 168 mm wide × 20 mm high × 414 mm deep.
Yes, compatible liquid and media loads can be processed when appropriate cycles, containers, loading procedures, and slow-exhaust settings are used. Liquid sterilization procedures should be validated for the specific application.
No. The traditional 2540E is a gravity-displacement autoclave rather than an active pre-vacuum system. Laboratories requiring validated vacuum-assisted processing should select equipment specifically designed for that purpose.
Tuttnauer manufactured the 2540E in both 120 V and 230 V versions. Customers should confirm the data plate on the individual American Instrument Exchange unit before installation.
Availability varies by component and production generation. Common mechanical and maintenance items may still be obtainable, while certain older electronic components can become more difficult to source. Customers with long-term service concerns should discuss the specific unit with American Instrument Exchange before purchase.
Unless otherwise specified, this refurbished unit includes a 90-day warranty from American Instrument Exchange.
That depends on the application. The refurbished 2540E can be an excellent value when straightforward steam sterilization and moderate chamber capacity are the priorities. Laboratories requiring current-generation controls, factory warranty coverage, advanced documentation, or long-term manufacturer support may prefer a new Tuttnauer model.
Yes. American Instrument Exchange offers both used and refurbished autoclaves and new Tuttnauer systems, allowing customers to compare legacy and current-generation sterilizers based on capacity, features, budget, and delivery requirements.
Click Here to see the Tuttnauer 2540E autoclave on the American Instrument Exchange YouTube channel.
Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
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Yes – please see our repair services page for more information.