Tuttnauer 3870EA Large Capacity Autoclave Review: The High-Volume Sterilizer Built for Serious Clinics

Running out of sterile instruments mid-procedure isn't just an inconvenience — it's a patient safety issue that can grind your entire practice to a halt. If your current sterilizer can't keep pace with your caseload, the Tuttnauer 3870EA is one of the most frequently recommended solutions in the industry. But at this price point, is it truly justified for your facility?

We've done the deep-dive research so you don't have to. Here's our complete, unfiltered look at the Tuttnauer 3870EA.

Product Overview

The Tuttnauer 3870EA is a large-capacity, fully automatic steam sterilizer designed for high-throughput medical, dental, and laboratory environments. The model designation tells you a lot: "38" refers to the chamber diameter (in centimeters), "70" is the chamber depth, and "EA" stands for Electrical Automatic — meaning the unit handles the full sterilization cycle without manual intervention at each phase.

Tuttnauer is an Israeli-American manufacturer with over 90 years in the sterilization industry. Their autoclaves are considered workhorses in clinical settings worldwide, and the 3870EA sits at the upper tier of their tabletop and countertop-class offerings.

Who it's for: Mid-to-large dental practices, oral surgery centers, veterinary hospitals, ambulatory surgery centers, and research labs that need a reliable, hands-off sterilization workflow with serious capacity.

Key Specifications

• Chamber Volume: ~23 liters (large capacity)
• Chamber Dimensions: Approximately 38cm diameter × 70cm depth
• Operating Mode: Fully Automatic (EA series)
• Sterilization Cycles: Gravity, Pre-vacuum (Prevac), and liquid cycles
• Warranty: 2-year parts and labor warranty
• Compliance: FDA-registered, CE-marked, meets EN 13060 and AAMI standards
• Power: 120V or 208–240V configurations available
• Display: Digital LCD control panel with cycle monitoring

Hands-On Experience

Setup and Installation

The 3870EA is not a plug-and-play countertop unit — this is a serious piece of equipment that requires proper installation. In most configurations, you'll need a direct water line connection (or dedicated reservoir system), a drain line, and potentially a dedicated electrical circuit depending on your building's setup.

Professional installation is strongly recommended, and Tuttnauer's dealer network can coordinate this. Most facilities report the installation process taking a half-day with a trained technician. Out of the box, the build quality is immediately apparent — this is a solid, heavy unit with stainless steel construction throughout the chamber interior.

First-time cycle validation (using biological indicators) should be performed before putting the unit into clinical service. Tuttnauer provides clear documentation for this process.

Daily Use

Once installed and validated, the 3870EA's fully automatic operation is its greatest strength. Staff load the chamber, select the appropriate cycle (gravity for solid instruments, Prevac for wrapped packs and hollow instruments), press start, and the machine handles the rest — including the drying phase.

The digital LCD panel is intuitive. Cycle status, temperature, pressure, and time remaining are all displayed clearly. Error codes are logged for troubleshooting, and printable cycle records (via optional printer connection) support documentation requirements for accreditation.

Turnaround time per cycle varies:

• Gravity cycle: Approximately 30–45 minutes total
• Pre-vacuum cycle: Approximately 45–60 minutes total (including drying)

For a busy surgical practice running 8+ cycles per day, this throughput is meaningful.

Standout Features

• Automatic door lock: Prevents opening under pressure — a critical safety feature often absent on lower-end models
• Self-contained water system option: Can operate without direct plumbing using an internal reservoir
• Built-in safety systems: Over-temperature cutoffs, pressure relief valve, low-water shutoff
• Validated Prevac cycle: Critical for porous loads, complex instruments, and wrapped packs — not all autoclaves in this class offer a true pre-vacuum cycle
• Large chamber depth: The 70cm depth accommodates longer instruments (surgical drills, rigid endoscopes) that smaller units simply can't handle

Pros and Cons

Pros

• True large-capacity chamber — handles volume that kills productivity on smaller units
• Fully automatic operation reduces staff error and frees up time
• Pre-vacuum (Prevac) cycle ensures penetration into complex and hollow instruments
• Excellent build quality — stainless steel chamber, durable construction
• Strong industry reputation — Tuttnauer service network is widely available
• 2-year warranty provides meaningful protection for a significant investment
• FDA-registered and internationally certified — audit-ready from day one
• Digital cycle logging supports regulatory documentation needs

Cons

• Higher upfront cost than smaller or manual-mode autoclaves
• Requires professional installation — not a DIY setup
• Longer cycle times compared to smaller benchtop units (trade-off for capacity and Prevac capability)
• Replacement parts and service can be costly out of warranty
• Size and weight make relocation difficult once installed
• Water quality sensitivity — hard water areas may require a water treatment/filtration system to prevent scale buildup

Performance Breakdown

Who Should Buy the Tuttnauer 3870EA

• Mid-to-large dental practices processing 50+ instrument packs per day and struggling with bottlenecks at the sterilization station
• Oral and maxillofacial surgery centers needing reliable Prevac cycles for wrapped surgical kits
• Veterinary hospitals with mixed instrument loads including wrapped packs and hollow items
• Ambulatory surgery centers seeking a reliable, accreditation-compliant sterilizer with cycle documentation
• University or hospital-based research labs that need consistent, validated sterilization for equipment and media
• Buyers replacing an aging Tuttnauer unit — if your staff already knows Tuttnauer's interface, the transition is seamless

If your practice is running the sterilizer 5–8+ times per day and instrument availability is limiting your scheduling, the 3870EA is purpose-built for your situation.

Who Should Skip the Tuttnauer 3870EA

• Small single-operator dental or medical practices with modest instrument loads — the Tuttnauer 2340M, 2540M, or 3140EA series offers sufficient capacity at lower cost
• Budget-constrained buyers who cannot accommodate the higher upfront and installation investment
• Facilities with simple, unwrapped instrument loads only — if you never need Prevac cycles, you're paying for capability you won't use
• Highly mobile or space-constrained environments where a smaller countertop unit is the only viable option
• Buyers expecting plug-and-play setup — this unit requires professional installation and commissioning

Alternatives Worth Considering

1. Tuttnauer 3870M (Manual) — Budget Step-Down

If the full automatic cycle isn't a requirement, the 3870M (manual version) shares the same large chamber but requires manual phase transitions. The lower price point makes it attractive for facilities with a dedicated sterilization technician. However, the manual process introduces more operator variability — not ideal for accredited surgical settings.

Search eBay for Tuttnauer 3870M

2. Midmark M11 — Strong Competitor for Dental Practices

The Midmark M11 is a top-tier competitor with a strong following in dental settings. It offers a self-contained water system and an excellent user interface. Chamber capacity is smaller (11 liters vs. ~23 liters), so it's best for practices with lighter loads. Midmark's service network is also excellent.

Search Amazon for Midmark M11 autoclave

3. Scican Statim 5000 — Speed-Focused Alternative

The Scican Statim 5000 uses cassette-based steam sterilization to achieve extremely fast cycle times (as little as 9 minutes for unwrapped instruments). If speed is more critical than bulk capacity, the Statim 5000 is worth evaluating — though it cannot handle wrapped packs in the same way a Prevac autoclave can.

Search eBay for Scican Statim 5000

Where to Buy the Tuttnauer 3870EA

The 3870EA is available through authorized Tuttnauer dealers, medical equipment distributors, and the secondary market. Buying new ensures full warranty coverage and factory configuration — critical for regulatory compliance.

For new units with warranty, authorized dealer purchase is the standard path. Units are also listed on eBay through verified equipment sellers, including sellers like Sterilizerautoclavesolutionsllc, where units have been listed at competitive prices (around $929 for qualified configurations — verify current listings for exact details and condition).

Search eBay for Tuttnauer 3870EA →

Search Amazon for Tuttnauer 3870EA →

Pro tip: When buying used or refurbished, always request documentation of the last biological indicator test, service records, and confirm the unit is FDA-registered. See our autoclave buying guide for a complete checklist before purchasing any used sterilizer.

Frequently Asked Questions

What is the difference between the Tuttnauer 3870EA and the 3870M?

The EA (Electrical Automatic) version completes the full sterilization cycle automatically — heat-up, sterilization, exhaust, and drying — without operator intervention at each phase. The M (Manual) version requires the operator to manually move through phases. For busy, accredited clinical settings, the EA is strongly preferred for consistency and workflow efficiency.

Does the Tuttnauer 3870EA require a direct water line?

It depends on the configuration. Some setups use a direct plumbed water supply and drain, while others can operate with a self-contained reservoir system. Your authorized Tuttnauer dealer will specify the requirements based on your facility setup during the sales and installation process.

Is the Tuttnauer 3870EA FDA-cleared?

Yes. Tuttnauer's EA series autoclaves are FDA-registered medical devices and meet international sterilization standards including AAMI ST8 and EN 13060. This is a requirement for clinical use in accredited facilities.

What accessories do I need for the Tuttnauer 3870EA?

Standard accessories include sterilization trays and cassettes, biological and chemical indicators, sterilization pouches and wraps, a cycle printer (if not included), and — depending on your water quality — an inline water treatment/filtration system. Budgeting for these separately is advisable.

How long do Tuttnauer 3870EA autoclaves typically last?

With proper maintenance (regular descaling, door gasket replacement, and annual service), Tuttnauer autoclaves routinely last 10–15 years in clinical environments. This is a significant factor in the total cost of ownership calculation. Tuttnauer's parts availability is generally good even for older models.

Can I use the Tuttnauer 3870EA to sterilize wrapped instrument packs?

Yes — and this is one of the 3870EA's key advantages. The Prevac (pre-vacuum) cycle draws a vacuum before steam admission, ensuring penetration into wrapped packs and porous loads. Not all autoclaves in this size class offer a validated Prevac cycle, making the 3870EA particularly well-suited for surgical environments where wrapped sterile packs are standard.

Final Verdict

The Tuttnauer 3870EA is a premium, large-capacity automatic autoclave that earns its reputation in high-volume clinical and surgical settings. For facilities where sterilization throughput is a genuine bottleneck, the combination of a ~23-liter chamber, validated Prevac cycles, automatic operation, and the Tuttnauer service network makes a compelling case — even at a higher price point.

It is not the right choice for low-volume practices, budget-constrained buyers, or anyone expecting a simple countertop setup. But for the right facility, it's a long-term investment that pays dividends in workflow efficiency, staff confidence, and regulatory compliance.

Our recommendation: If your practice processes 30+ instrument sets per day and you're operating in an accredited surgical or dental environment, the Tuttnauer 3870EA is one of the strongest choices on the market. Check current availability on eBay or search Amazon for new and refurbished options.

Looking for more sterilization and disinfection equipment options? Browse our full autoclave buying guide for head-to-head comparisons, what to look for in used units, and pricing benchmarks across the major brands. ```