Tuttnauer 3870EAP Autoclave Review: A Professional Steam Sterilizer with Printer and Warranty

If your practice is outgrowing a tabletop sterilizer — or you're setting up a new surgical suite, dental clinic, or veterinary facility — the Tuttnauer 3870EAP consistently tops the shortlist. Finding one new in box, with an active warranty, is the rare scenario where you get Tuttnauer's legendary reliability without paying full retail. Here's everything you need to know before buying.

Product Overview

The Tuttnauer 3870EAP is a large-chamber, automatic pre-vacuum steam sterilizer built for high-volume clinical environments. The model designation tells you a lot: 38 refers to the chamber width (38 cm), 70 indicates the chamber depth (70 cm), E signals electrically heated, A means fully automatic operation, and P means the unit includes an integrated cycle printer.

Key specifications:

• Chamber size: 38 cm (W) × 70 cm (D)
• Sterilization method: saturated steam (gravity and pre-vacuum cycles)
• Operation: fully automatic, microprocessor-controlled
• Documentation: built-in cycle printer for compliance records
• Power: 208–240V, single or three-phase depending on configuration
• Intended use: hospitals, surgical centers, dental offices, veterinary clinics, research labs

This is not a countertop unit you slide under a workbench. The 3870EAP is a freestanding or recessed floor model. It occupies the same category as the Midmark Ritter M11 or the SciCan Statim 7000S — but it handles significantly higher throughput and larger instrument loads.

Finding one new in box, as listed by sellers like medicalusa and buyhitek on eBay, represents a meaningful value over brand-new retail pricing. Current used/new-in-box listings range from $7,500 to $17,999 depending on condition, configuration, and seller warranty terms.

Hands-On Experience

Setup and Installation

The 3870EAP is not a plug-and-play unit. You'll need a licensed plumber for the water supply connection, an electrician for the 240V service, and a certified biomedical technician for commissioning and initial validation. Tuttnauer provides detailed installation documentation, and most sellers of new-in-box units can connect you with service partners.

The learning curve on the control panel is modest. The touchscreen interface walks operators through cycle selection, load type, and temperature/pressure targets. For staff who've used any modern autoclave, orientation takes an afternoon.

Daily Use

Once commissioned, daily operation is straightforward. Load the chamber, select your cycle (gravity or pre-vacuum), press start. The unit runs through heating, sterilization, and drying automatically. At cycle completion, the integrated printer generates a timestamped record showing cycle temperature, pressure, and duration — essential for Joint Commission and OSHA compliance documentation.

The pre-vacuum cycle is a standout feature at this price point. By pulling vacuum before steam injection, it forces steam into hollow instruments and complex geometries that gravity-cycle units can miss. For surgical instrument sets, lumened devices, or wrapped packs, this matters.

Standout Features

• Integrated printer: Eliminates manual log-keeping and supports audit trails — a practical necessity in regulated environments
• Pre-vacuum capability: Suitable for porous loads and wrapped instrument sets
• Automatic door lock: Prevents mid-cycle opening; meets AAMI standards
• Drying cycle: Reduces post-cycle moisture, extending instrument lifespan
• Self-diagnostic system: Flags faults with error codes, simplifying service calls

Pros and Cons

Pros

• Large chamber accommodates full surgical trays and bulky wrapped loads
• Pre-vacuum cycle validates sterilization of complex instruments
• Built-in printer creates compliance-ready cycle logs automatically
• New-in-box availability with warranty offers reliability without full retail cost
• Tuttnauer's global service network means parts and certified technicians are accessible
• Microprocessor controls allow precise cycle customization

Cons

• Requires professional installation — not suitable for self-install
• 240V electrical requirement adds upfront infrastructure cost
• Higher purchase price than small tabletop units (appropriate for the class, but budget accordingly)
• Larger footprint demands dedicated utility space
• Water quality matters: hard water will require a filtration/softening system to protect chamber integrity

Performance Breakdown

Who Should Buy the Tuttnauer 3870EAP

This autoclave is the right choice for:

• Surgical centers and ASCs processing high volumes of wrapped instrument sets daily — the pre-vacuum cycle and large chamber are purpose-built for this
• Dental and oral surgery practices sterilizing handpieces, forceps, and cassette loads simultaneously
• Veterinary hospitals handling mixed instrument loads of varying geometry
• Research and biomedical labs requiring validated, documented sterilization cycles
• Facilities replacing an aging unit and want a new-in-box unit without paying full MSRP

If you're processing 15–30+ sterilization loads per day, this is the tier of equipment you need. Smaller practices doing 3–5 loads per day will find the investment harder to justify versus a midrange tabletop autoclave.

Who Should Skip This

• Solo practitioners or small offices with low daily volume — a Midmark M11 or Tuttnauer 2540 handles the load at far lower cost and installation complexity
• Facilities without 240V electrical access and no budget for electrical upgrades
• Anyone needing fast turnaround on a tight timeline — new-in-box listings sell quickly and delivery lead times can vary by seller
• Labs requiring dry-heat sterilization — steam autoclaves aren't appropriate for all instrument materials

Alternatives Worth Considering

Tuttnauer 2540M — Best for Smaller Practices

The 2540M is Tuttnauer's workhorse tabletop unit. It handles moderate instrument volumes with gravity-cycle sterilization, and at a fraction of the price of the 3870EAP. If your daily load doesn't justify a floor model, start here. Check availability in our used autoclave buying guide.

Midmark Ritter M11 — Best for Dental Offices

The M11 is the dominant autoclave in dental practices across North America. It's smaller than the 3870EAP, purpose-designed for dental instruments, and widely supported. If your facility is specifically dental, the M11 deserves comparison.

Tuttnauer 5596EP — Best for Hospital-Scale Volume

If the 3870EAP chamber is still too small for your load volume, Tuttnauer's larger pass-through models offer double-door configurations and higher throughput for central sterile processing departments.

Where to Buy

New-in-box Tuttnauer 3870EAP units are available through medical equipment resellers on eBay, typically from established commercial sellers with verified feedback histories and documented warranty terms. Current listings show units ranging from $7,500 (buyhitek) to $17,999 (medicalusa), with variation based on included accessories, warranty length, and service documentation.

What to confirm before purchasing:

• Is the unit genuinely new in box, or "like new"? Ask for original packaging photos
• What warranty is included — manufacturer or seller?
• Does the seller provide commissioning support or service partner referrals?
• Is the unit configured for your facility's voltage (208V vs. 240V)?

Check current Tuttnauer 3870EAP listings on eBay →

Search Amazon for Tuttnauer sterilizer accessories and parts →

Frequently Asked Questions

What does "EAP" mean on a Tuttnauer autoclave? EAP stands for Electric, Automatic, Printer. The "E" confirms the unit uses electric heating (vs. steam generator plumbing), "A" means the cycle runs fully automatic without operator intervention, and "P" indicates a built-in printer for cycle documentation.

Is the Tuttnauer 3870EAP FDA-cleared? Yes. Tuttnauer autoclaves are FDA 510(k)-cleared Class II medical devices. This is a prerequisite for use in regulated healthcare facilities in the United States.

What size instrument loads does the 3870EAP handle? The 38 cm × 70 cm chamber accommodates standard surgical instrument trays, wrapped cassette sets, and large porous loads. It supports multiple tray configurations simultaneously, making it suitable for surgical centers processing diverse instrument types.

What type of water does the autoclave require? Tuttnauer recommends distilled or deionized water. Tap water with high mineral content accelerates scale buildup inside the chamber and heat exchanger, voiding the warranty and reducing sterilization efficacy. A water treatment system is a worthwhile companion purchase.

What maintenance is required? Routine maintenance includes weekly chamber cleaning, monthly gasket inspection, periodic biological and chemical indicator testing, and annual preventive maintenance by a certified biomedical technician. Tuttnauer's service network covers most major metro areas.

Can I buy this unit used instead of new in box? Yes, and for many facilities it makes financial sense. A well-maintained used 3870EAP with service history documentation can perform identically to a new unit at 40–60% of the cost. See our used autoclave buying guide for what to inspect before buying used sterilization equipment.

Final Verdict

The Tuttnauer 3870EAP is genuinely one of the most capable mid-volume steam sterilizers available, and finding it new in box with warranty is a legitimate opportunity for practices that need this class of equipment. The pre-vacuum cycle, integrated printer, and Tuttnauer's long-established service infrastructure make this a defensible purchase for surgical centers, veterinary hospitals, and high-volume dental practices.

Our recommendation: If your daily sterilization load exceeds 10–15 cycles and you process wrapped or lumened instruments, the 3870EAP delivers reliable, compliant performance for years. Compare the $7,500–$17,999 new-in-box price range carefully against seller reputation, included warranty, and configuration specifics before committing. For lower-volume practices, explore our disinfection equipment section for right-sized alternatives. ```