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Ritter M11 UltraClave Automatic Sterilizer


With the emergence of many aggressive, infectious organisms, there is an ever-increasing need for efficient, effective instrument processing in your practice.

The M11 is the Largest table-top automatic sterilizer with automatic door and easy to operate - it is the largest of the Ritter autoclaves.

Its unique 11" x 18" chamber gives it the distinction of having the largest sterilizing capacity of any standard countertop sterilizer on the market, making it perfect for larger packs and instruments.


  • Easier and is time tested for reliability. You load it… set it… and forget it.


Features include:

  • Exclusive automatic-opening door for ease of use and a quick drying time
  • Large 11" by 18" chamber for increased capacity
  • Steam–Flush Pressure Pulse Air Removal System ensures proper steam penetration
  • Self Program Controls enable you to create different cycle parameters to meet specific instrument processing needs
  • Pre-Programmed Controls for convenience
  • LCD Display for easy view of indicators
  • An optional printer accessory


  • Select your cycle and the time is set for you.
  • Press “Start” and the Ritter M11 fills with the correct amount of water.
  • Once the sterilization process is complete, the door opens automatically


  • Programmable cycle features allow custom creation of different cycle parameters for special sterilization needs.
  • Programmable buttons allow you to change the following:
  • Time (3 to 90 minutes), Temperature (230 to 275˚F), Dry Time (0 to 60 minutes), Vent (slow or fast) and two program buttons allow you to store the custom cycles.
  • Pre-programmed sterilization cycle controls: Unwrapped (132º C or 270º F for 3 minutes), Pouched (132º C or 270º F for 5 minutes), and Packs (121º C or 250º F for 30 minutes).
  • One button starts the cycle and you must manually open the door within 30 minutes of completion to activate the dry

A separate (dedicated) circuit is recommended for this autoclave. Meets the requirements of ASME Boiler and Pressure Vessel Code.

Ritter M11 UltraClave Automatic Sterilizer


Ritter M11 UltraClave Automatic Sterilizer


  • Overall length w/plug: 23.8" (60.5 cm)
  • Overall width: 17.8" (45.2 cm)
  • Overall height w/printer: 17.8" (45.2 cm)
  • Minimum Countertop area: 17.8" x 21.0" (45.2 x 53.3 cm)
  • Chamber:
  • 11" diameter (28 cm)
  • 18" depth (45.7 cm)
  • 6.5 gal. usable volume (24.6 liters)
  • Trays:
  • Two large – 9" W x 15" L x 1.1" D
  • (22.9 cm x 38 cm x 2.9 cm)
  • Two small – 6.6" W x 15" L x 1.1" D
  • (16.8 cm x 38 cm x 2.9 cm)
  • Unit weight: 99 lbs. (44.9 kg)

  • Shipping weight: 131 lbs. (59.4 kg)
  • Water reservoir capacity: 1.4 gal. (5.3 liters)
  • Electrical Requirements
  • 115 VAC, 50/60 Hz, 15 Amps, Single Phase
  • 115 VAC has 1425 watt tubular immersion heater

Safety Standards

  • UL61010-1, UL61010-2-040
  • CAN/CSA C22.2 No. 61010-1
  • CSA C22.2 No. 61010-2-040-07 Part 2-040
  • Meets the requirements of ASME Boiler and Pressure Vessel Code
  • Canadian Registration Number (CRN) available
  • A separate (dedicated) circuit is recommended for this sterilizer

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