Midmark Ritter M3 Ultrasfast Sterilization Automatic Autoclave


The Midmark / RITTER M3 is everything you need in an autoclave. And it comes standard with the dependability and reliability you have come to expect from the Ritter name.


  • Sterilizer unwrapped instruments in 6 minutes and pouched instruments in just over 10


  • Fully automatic with one-step loading, push-button cycle selection, and an automatic-opening door


  • Monitors water levels for worry-free operation


  • Overall length w/plug: 22″ (55.9 cm)
  • Overall width: 17.8″ (45.2 cm)
  • Overall height: 7.1″ (18.0 cm)
  • Minimum countertop area: 24″ (61 cm) D x 22″
    (55.9 cm) W
  • Chamber:
    • 12.1″ (30.7 cm) L x 7.6″ (19.3 cm) W x 1.6″ (4.1 cm) H 0.49 gal. (1.8 liters) usable volume
  • Tray:
    • 11.75″ (29.8 cm) L x 7.25″ (18.4 cm) W x 1″ (2.5 cm) H
  • Unit weight: 71 lb (32.2 kg)
  • Shipping weight: 80 lb (36.3 kg)
  • Reservoir capacity: 1.2 gal. (4.5 liters)

Water reservoir capacity:
1.2 gal (4.5 liters)

Electrical requirements:
115 VAC, 50/60 Hz, 12 A single phase
230 VAC, 50/60 Hz, 6 A single phase
Heater Power: 1,400 W
Maximum power consumption: 1,400 watts

Safety Standards:
UL Listed to US & Canada standards
UL 61010-1, 2nd edition
IEC 61010-2-040, 1st edition
CAN/CSA C22.2 No. 61010-1, 2nd edition
CSA C22.2 No. 61010-2-040

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

    Product Enquiry

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    SKU: MID-1000-001 Category:


    Accelerate and simplify instrument sterilization by having ready-to-use instruments when you need them. The Midmark M3 Steam Sterilizer is fast and user-friendly, quickly processing instruments so you can spend more time running your practice and focusing on your patients. With built-in safety features, no supplemental air or water filtration systems required, and a compact design, the M3 Steam Sterilizer is a safe, easy-to-use powerhouse in fast sterilization.

    The smart choice for a well-designed and fully equipped sterilization center, the Midmark M3 sterilizer is the perfect fast-cycle complement to the larger Midmark M9® and M11® sterilizers, giving you:

    Rapid Sterilization

    The quick cycle times help meet the demands of a busy schedule.

    Ease of Use

    One-step loading and push-button cycle selection make the operation so simple, it can be done with one hand.

    Minimal Maintenance 

    The simple design works without air or water filtration systems that need constant attention.

    Enhanced Reliability 

    ASME certification for safety and effectiveness provides peace of mind.

    NOTE: The updated Midmark M3 Steam Sterilizer is anticipated to be available in Canada in November 2020.





    Additional information

    Weight 36.2 kg
    Dimensions 55.9 × 45.2 × 18.0 cm


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