Volume in circulation
Useful Life
Annual capital prod.
Anticipated deprec.

Midmark Ritter M7 – Gen 2

$5,200
(New) factory MSRP
introduced in 1972
Buy at:
$1,388.00
equilibrium price ; fetched May 6, 2025
Sell in 30 days for $832.80 on Westrn

Delivers with UPS between May 17, 2025 - May 22, 2025
About the Midmark Ritter M7 – Gen 2
Description:
The second-generation Midmark / Ritter M7 Speedclave updates the long-loved “workhorse” sterilizer with a stiffer 1.3 kW immersion heater, a slightly roomier steel shell (19 in deep) and front-panel tweaks that keep operation strictly mechanical—fill/vent lever, bimetal thermometer and 0-to-30 min timer—yet shave a full minute off warm-cycle turnaround. The 7.5-in-diameter chamber still accepts the familiar three-tray rack, while the door’s spring lock, low-water cut-out, dual over-temp thermostats and 34 psi relief valve guard against operator error. Because everything needed—reservoir, condensing coil and drain—is inside the 30-lb chassis, installation remains as simple as “set it down, add distilled water, plug into 115 V or 230 V.”
Economic Advantage:
Gen 2’s hotter 1300 W element shortens a cold start to steam by ~15 %, bringing an unwrapped load to sterilization in nine minutes and in just six when already hot, so a solo practice can cycle 5–6 trays an hour without buying a pricier vacuum unit. The unit’s built-in reservoir and all-manual controls mean no consumables beyond cheap tray liners and almost nothing electronic to fail—translating into years of uptime and one of the lowest total-ownership costs per sterilized instrument on the market.
Price History
Specifications:
Chamber diameter | 7.5 in (19 cm) |
---|---|
Chamber depth | 14.25 in (36.2 cm) |
Usable chamber volume | 2.4 gal |
Cycle time (unwrapped) | 9 min cold start; 6 min hot start |
Operating temp range | 250 – 270 °F (121 – 132 °C) |
Timer range | 0 – 30 min, auto shut-off |
Heater power | 1300 W immersion element |
Electrical requirement | 115 VAC 60 Hz 10 A or 230 VAC 50 Hz 5 A |
Reservoir capacity | 1.3 gal |
External dimensions (D × W × H) | 19 in × 14 in × 13 in |
Net weight (empty) | 30 lb |
Pressure-relief set-point | 34 psi |
Included Accessories:
You order with Westrn will include:
Unless, indicated otherwise, or in cases where accessories are single use disposable, these accessories will arrive in "pre-owned" condition.
Sales Data
Includes all sales of the Midmark Ritter M7 – Gen 2 within the last 12 months on the Westrn platform. Amounts do not include taxes or fees found in checkout subtotal.
No sales history available.