Mechanical Rotary Level Indicator

Model: BMR-100

Rotary Paddle Switch: Point Level for Solids

The BMR-100 is an affordable level switch to alert to vessel levels in solid materials with a bulk density of 2 lb. to over 100 lb./cu. ft.

Want to prevent overfilling bins? Eliminate dry runs in processing operations?

Wire the BMR-100 rotary to a light or horn to alert to high or empty levels.

Simple, electromechanical measurement for ordinary storage and processing operations.

  1. Agriculture. Bins containing grain, seed, feed, fertilizer, or bulk ingredients.
  2. Construction. Concrete and cement batch plants, silos of roofing granules.
  3. Mining. Sand, gravel, aggregate, and coal storage and surge bins.
  4. Plastics. Detect level of plastics pellets in silos or hoppers.


Accessories for the BMR-100.

Paddles. Select from 19 different styles for light, medium, and heavy bulk solid materials. Collapsible  paddles for installation with entering the vessel.

Mounting plates. Carbon and stainless-steel options in 0° 10°, 20° and 30° angles for top mounting on sloped roofs.

Point level alarm panel. Provides vessel level conditions via a blinking light and audible alarm with up to 24 level indicator stations.

Quick disconnect. Replaces hard wiring to make it simple to install and remove the rotary for cleaning, maintenance, or replacement.

Adjustable top mount. Change the high level threshold simply using a adjustable coupling that can be moved up and down a 72” shaft.

In stock and ready to ship! Call 402-434-9102 now!

  • High, demand, and empty level indication for processing vessels
  • Point level detection of bulk solids including powders, pellets, and granules
  • Mounting strategically where needed on bins, silos, chutes, and conveyors
  • Material density from 2 lb./cu. ft. to over 100 lb./cu. ft.
  • Feed, seed, grain, and food storage and processing
  • Sand, gravel, concrete, aggregates, coal, and mining sites
  • Plastic pellets and granules used by molders and packaging manufacturers
  • Simple, mechanical design
  • 115 VAC voltage
  • SPDT relay output, 250 VAC, 10 Amp
  • Two ¾” conduit entrances
  • Interchangeable with other rotaries
  • Aluminum cast housing with powder-coated finish
  • Easy access screw-off cover

Power Requirements: 115 VAC

Output Contacts: SPDT 10 Amp, 250 VAC

Ambient Operating Temp: -40°F to +185°F (-40°C to +85°C)

Process Temp: -40°F to +250°F (-40°C to +121°C)

Enclosure Type: NEMA 4X, 5, 7, 9 & 12

Enclosure: Die cast aluminum, powder coat finish

Mounting: 1-1/4” NPT

Conduit Connections: 3/4” NPT

Shaft: Stainless steel