Tuttnauer 3870EA Review: The Gold Standard for High-Volume Sterilization

If your facility processes high volumes of instruments daily and a compact tabletop unit just isn't cutting it anymore, the Tuttnauer 3870EA is likely already on your radar. It's one of the most referenced fully automatic autoclaves in the used medical equipment market — and for good reason. But with used units ranging from $2,500 to nearly $18,000 depending on condition and seller, knowing exactly what you're buying matters enormously.

We've dug into the specs, reviewed real-world clinical use cases, and tracked pricing across the used equipment market to give you a complete picture before you commit.

Product Overview

The Tuttnauer 3870EA is a floor-loading, fully automatic pre-vacuum and gravity steam sterilizer designed for busy medical, dental, laboratory, and surgical settings. The "EA" designation stands for Electronic Automatic — meaning the unit runs complete sterilization cycles with minimal manual intervention. The 3870 model features a 15" × 30" chamber, offering substantially more capacity than the 2340 or 2540 tabletop models while remaining compact enough to fit in most procedure rooms or central sterile departments.

Key specs at a glance:

• Chamber dimensions: 15" diameter × 30" depth
• Sterilization temperatures: 250°F (121°C) gravity / 270°F (132°C) pre-vacuum
• Cycle types: Gravity, Pre-vacuum (optional), Liquid
• Power requirements: 208–240V, single or three-phase (verify before purchasing)
• Manufacturer: Tuttnauer USA, Hauppauge, NY

New, this unit carries a list price well above $20,000. On the used and refurbished market, it's one of the most actively traded autoclaves — which means parts availability and service documentation are excellent.

Hands-On Experience

Setup and Installation

The 3870EA is not a plug-and-play unit. It requires a dedicated electrical circuit (208–240V), a steam supply or internal steam generator depending on configuration, and a drain connection. Most facilities installing a used 3870EA engage a biomedical technician or Tuttnauer-certified service provider for commissioning — budget for this if you're purchasing a used unit privately.

Once installed, the electronic control panel is straightforward. Cycle selection is menu-driven, cycle parameters are clearly displayed, and the unit advances through phases (heat-up, sterilization, drying/exhaust) automatically without requiring operator attention.

Daily Use

In a high-volume dental group practice or surgical center, the 3870EA handles back-to-back cycles reliably. The 15" × 30" chamber accommodates full cassette loads, unwrapped instruments, and wrapped packs simultaneously — something smaller tabletop units struggle with during peak hours.

The self-monitoring electronics log cycle data, making it straightforward to maintain sterilization records for infection control compliance. This is a genuine workflow advantage over older mechanical timer-based autoclaves.

Parts and Accessories

One of the practical strengths of the 3870EA platform is parts availability. Door gaskets, chamber elements, solenoid valves, and control boards are widely stocked through Tuttnauer's parts network and third-party biomedical suppliers. If you're sourcing a used unit, this matters: a well-maintained 3870EA can be kept in service for 15–20 years with routine maintenance.

Common replacement items include:

• Door gasket / door seal — typically replaced every 1–3 years depending on cycle volume
• Biological indicator incubators — used alongside the unit for cycle verification
• Chamber trays and cassette holders — often missing from used units; verify before purchase
• Water filtration accessories — critical for steam quality and chamber longevity

When sourcing used autoclaves, always request a list of recent parts replacements and ask for the last service report.

Pros and Cons

Pros

• Fully automatic cycle progression — minimal operator involvement once loaded
• Large 15" × 30" chamber handles full instrument loads for high-volume facilities
• Extensive service network — Tuttnauer has one of the best parts and tech support ecosystems in the market
• Electronic cycle logging supports infection control documentation
• Multiple cycle types (gravity + pre-vacuum) offers flexibility for different load configurations
• Strong resale value — holds value well compared to lesser-known brands

Cons

• High power requirements (208–240V) limit where it can be installed without electrical upgrades
• Steam generator maintenance adds recurring cost if the unit has an internal generator
• Used units vary widely in condition — buyer due diligence is essential
• Larger footprint than tabletop models; requires dedicated counter or floor space
• Not portable — once installed, it stays installed

Performance Breakdown

Who Should Buy This

The Tuttnauer 3870EA is the right choice for:

• Dental group practices and DSOs processing 100+ instrument packs per day who have outgrown tabletop units
• Ambulatory surgery centers needing flexible cycle types for mixed instrument loads
• Veterinary hospitals with high surgical volumes
• Medical laboratories sterilizing media, glassware, and biohazardous materials
• Facilities replacing an older Tuttnauer model — institutional knowledge of the platform carries over, and staff won't need retraining
• Budget-conscious buyers willing to purchase a used unit and invest in a pre-purchase inspection — the parts ecosystem makes this low-risk compared to orphaned brands

Who Should Skip This

• Solo practitioners or low-volume clinics — a Tuttnauer 2540MK or similar tabletop unit will handle the load at a fraction of the cost and complexity
• Facilities without 208–240V electrical capacity unless they're budgeting for an electrical upgrade
• Buyers who cannot arrange a biomedical inspection before purchase — without verification, a used unit at any price is a gamble
• Facilities needing Class B validation for EU regulatory compliance — confirm cycle validation documentation is available for your jurisdiction's requirements

Alternatives Worth Considering

1. Tuttnauer 2540MK (Tabletop)

If your volume doesn't justify the 3870EA's footprint and power demands, the 2540MK offers a 10" × 18" chamber in a fully manual configuration at a significantly lower price point. It's the workhorse of small to mid-size dental and medical offices. Check current prices on eBay.

2. Midmark M11 Ultraclave

The Midmark M11 is the direct competitor most often compared to the 3870EA in dental and medical settings. It offers a slightly smaller chamber but is well-regarded for reliability and ease of maintenance. Used units are widely available and well-supported. A solid alternative if you find the Tuttnauer pricing out of reach.

3. Scican Statim 5000

For facilities that prioritize rapid cycle times over capacity, the Scican Statim 5000 cassette autoclave offers extremely fast sterilization (as fast as 6 minutes for unwrapped instruments). It's not a replacement for high-volume batch sterilization, but it complements a central sterile department workflow well.

Where to Buy

The Tuttnauer 3870EA is no longer in active production in this exact configuration, which means the used and refurbished market is your primary source.

eBay is the most active marketplace for this unit, with multiple listings from established biomedical equipment dealers. We've tracked recent listings ranging from $2,500 for as-is units (inspect carefully) to $17,999 for fully refurbished units with warranty from established dealers. Seller reputation and return/service policies vary significantly — prioritize sellers with established feedback histories and verifiable biomedical service backgrounds.

Search current Tuttnauer 3870EA listings on eBay →

Amazon carries replacement parts, accessories, and consumables for the 3870EA platform — door gaskets, biological indicators, chamber trays, and water treatment accessories are readily available.

Search Tuttnauer 3870EA parts and accessories on Amazon →

What to look for in a used listing:

• Seller provides service history or last biomedical inspection report
• Chamber photos showing interior condition (staining, corrosion, or scoring are red flags)
• Door gasket condition disclosed
• Electrical configuration matches your facility's supply
• Trays, cassette holders, and documentation included

Pair your autoclave investment with proper disinfection equipment and medical cleaning equipment to maintain a complete sterilization workflow.

Frequently Asked Questions

What does the "EA" stand for in Tuttnauer 3870EA? EA stands for Electronic Automatic. It indicates the unit uses an electronic control system to automate the full sterilization cycle — including heat-up, sterilization hold time, and exhaust — without requiring manual intervention between phases.

Is the Tuttnauer 3870EA still manufactured? Tuttnauer has evolved this product line over the years, and availability of new units in the exact 3870EA configuration varies by region and distributor. The used and refurbished market is the primary source for most buyers, with active listings available from biomedical equipment dealers.

What maintenance does the 3870EA require? Routine maintenance includes door gasket inspection and replacement, chamber cleaning, water quality checks (use distilled or RO water only), solenoid valve inspection, and periodic biological indicator testing for sterilization validation. A full annual service by a certified biomedical technician is strongly recommended.

Can I use tap water in the Tuttnauer 3870EA? No. Only distilled or reverse-osmosis (RO) water should be used. Tap water minerals cause scale buildup inside the chamber and steam generator, reducing performance and dramatically shortening service life.

What chamber accessories do I need? At minimum, you'll need chamber trays or racks (often sold separately or missing from used units), instrument cassettes or pouches appropriate for your load type, and biological indicator strips or vials for cycle validation. Verify what's included before purchasing a used unit.

What is a fair price for a used Tuttnauer 3870EA? Pricing varies widely by condition, service history, and seller. As-is units with unknown history trade around $2,500–$5,000 and carry higher risk. Professionally refurbished units with service documentation from established biomedical dealers range from $7,000–$18,000. A pre-purchase inspection by an independent biomedical technician ($150–$300) is almost always worth the cost at any price point.

Final Verdict

The Tuttnauer 3870EA remains one of the most capable and best-supported large-capacity tabletop autoclaves on the used medical equipment market. Its combination of fully automatic operation, a spacious 15" × 30" chamber, and an extensive parts and service network makes it a smart long-term investment for high-volume facilities — provided you buy from a reputable seller and verify condition before purchase.

Our recommendation: Budget $7,000–$10,000 for a professionally serviced unit from an established biomedical dealer, factor in a biomedical inspection if buying privately, and this autoclave will reliably anchor your sterilization workflow for years. For facilities comparing options, also review our guide to used autoclaves for a broader market perspective. ```