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Medium size chamber in a mobile autoclave


A free-standing, cabinet enclosed unit is simple and as easy to use as any tabletop autoclave. The 3870 HSG is a hospital grade Class B autoclave, suitable for large medical & dental clinics, and operating rooms. Designed to be a fast cycle sterilizer that is mobile, operates 24 hours a day, and can optionally operate independent of building utilities.

Packed with all the features and reliability of a large capacity autoclave at a fraction of the size and cost, the 3870 HSG now comes with with Virus Protective Shield, a virus pre-sterilization cycle.

  • 85 Liter chamber
  • Easy to use. 36 Multi-colored display and easy 3-button pad to easily browse pre-programmed sterilization cycles and user directories with a built-in alpha-numeric printer
  • Fast & efficient. Coiled jacket increases overall cycle speed, performance and ensures uniform heat distribution throughout the chamber
  • Safe. Double locking safety device prevents door from opening at high pressure and high temperature
  • High quality 316 L stainless steel chamber and door with electro-polish finish
  • Rapid air removal. High volume water-ring vacuum pump for fast and efficient air removal.
  • Easy to move & install, Mounted on wheels for easy mobility. Connects to utilities with flexible piping for an easy installation
3870HSG - 85 Liter Chamber Autoclave

Sterilization Programs

The 3870 HSG comes with 5 pre-set and 22 customizable cycle programs, as well as 2 standard diagnostic tests.

Preset Cycles

Load Type Temp. Sterlization Time Drying Time Cycle Time*
Unwrapped instruments 134 °C 4 min. 1 min. 31 min.
Wrapped instruments 134 °C 7 min. 20 min. 34 min.
Unwrapped delicate instruments 121 °C 20 min. 0 min. 33 min.
Wrapped delicate instruments 121 °C 20 min. 20 min. 46 min.
Prior instruments 134 °C 18 min. 20 min. 45 min.
Leak Test 24 min.
Bowie & Dick Test 134 °C 3.5 min. 2 min. 12 min.

* 3870 HSG cycle times are based on a 5kg load and  do not include drying. Cycle times based on warm chamber and may change according to load size.   Bowie & Dick Test is also suitable for Helix test device. Leak Test checks that the chamber under vacuum does not leak.

3870HSG Autoclave - Tuttnauer

Data & Software

The 3870HSG gives you easy access to its cycle data. Via USB, Ethernet or printer.

  • USB and Ethernet Ports
  • A bright multicolor LCD panel with rotating wheel to indicate active cycle
  • Multiple access levels for added security
  • Multilingual interface (26 languages)
  • Generate PDF reports with graphs and tables using optional R.PC.R Software.
3870HSG - Data and Software

Technical Specifications

Chamber Volume

  • 85 Liter

Chamber Dimensions (Ø x L)

  • 384mm x 758mm

Overall Dimensions (WxHxD)

  • 720mm x 1365mm x 1180mm

Tray Capacity

  • 2 Trays

Tray Dimensions (WxHxD)

  • Small: 286mm x 25mm x 675mm
  • Large: 350mm x 25mm x 675mm

Autoclave Weight

  • 180 kg

Voltage & Frequency

  • 3 phase (1ph option available)
    208V, 230V, 400V, 440V, 480V
    50-60 Hz


  • 9 kW

Standards and directives

(a partial list)


  • ANSI/AAMI ST-8:2013 Hospital Steam Sterilizers
  • EN 285: 2006+A2: 2009 – Large Steam Sterilizer
  • EN 61010-1: 2010 Safety Requirements for measurement control and laboratory use
  • EN 61326-1: 2013 for EMC Requirements for Electrical Equipment
  • EN 61010-2-40: 2015 Safety requirements for sterilizers used to treat
    medical materials
  • EN ISO 17665-1: 2006 Sterilization of health care products – moist heat

Pressure Vessel

  • AAll pressure vessels and boilers are certified according to ASME code section I and section VIII, Div. I and PED 97/23/EC – Pressure Equipment Directive

Quality Standards

  • ISO 9001:2015 Quality Management Systems
  • EN ISO 13485:2016 Quality Management System – Medical Devices


  • 93/42/EEC Council Directive concerning Medical Devices
  • 20012/19/EU WEEE & 2011/65/EU RoHS

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