Rotary prevents grain bin over-filling

Installing a rotary in a grain bin eliminates the need to climb a ladder to check how much space is left in the bin, so it also makes operations safer by preventing falls and accidents.

 For more than forty years, BinMaster rotaries have been helping farmers and grain cooperatives prevent bin overfills on farms and at grain elevators.

Installing a rotary in a grain bin eliminates the need to climb a ladder to check how much space is left in the bin, so it also makes operations safer by preventing falls and accidents. Plus, rotaries are a real time saver; there is no need to stop the auger, climb the ladder to check the bin, and then start up the auger again.

A rotary is commonly mounted through the bin wall near the top of the bin, with the motor enclosure outside the bin and its stainless steel paddle inside the bin.

The rotary paddle turns until grain filling the bin stops the paddle. When the paddle stops turning, the rotary automatically sends an alert to a light or a horn.

Alternatively, rotaries can be wired to a BinMaster annunciator light panel that allows for viewing the status of up to 24 bins at a centralized location, eliminating the need to walk from one bin to the next to see which bins are already full.

BinMaster rotaries are rugged and have a long life expectancy averaging 15 years. To prolong motor life, BinMaster uses a “de-energizing” motor that puts the motor to sleep once the bin is full, so the motor only runs when it needs to. The motor automatically “re-energizes” when the grain falls away from the paddle as the bin is emptied.

BinMaster offers two models of rotaries — the standard BMRX rotary and the genuine fail-safe MAXIMA+ — both of which are designed to provide protection from system power failure.

BinMaster’s enclosure features a twist-off cover with no-bolt access to the internal components of the rotary, making the unit easy to open for wiring upon installation.

When it is important to know the rotary is working continuously, the BinMaster MAXIMA+ is a genuine fail-safe rotary that continually self diagnoses and sends an immediate alert when there is a motor failure. It has all the features of the BMRX, plus an LED light on the top of the rotary that indicates the motor status – blinking for uncovered, solid for covered, and unlit for a failed condition.

BinMaster rotaries are available in many different configurations. For example, multiple rotaries can be mounted on a single bin and provide high, mid or low level alerts as the bin is being filled or emptied.

Another alternative is to mount the rotary on the roof of a bin using a shaft and pipe extension to extend the paddle to the desired fill level to detect the top of the grain as the bin is filled.

BinMaster also offers a collapsible paddle that allows for a rotary to be installed without entering the bin. The paddle collapses to fit through a standard 1-1/4” opening and then “springs” open once it is through the opening. The paddle is also easily removed by simply pulling the collapsible paddle back through.

All BinMaster rotaries are approved for hazardous locations where there are high levels of dust. The standard BMRX models range in cost from $200 to $240; with the MAXIMA+ genuine fail safe models with the LED status light and advanced fault conditions priced around $400.

Contact Nathan Grube at 800-278-4241 or to find out which rotary model is best for your operation.

For more information about BinMaster, visit


Connect With Us
Commodity Prices


Copyright © 2016. All market data is provided by Barchart Market Data Solutions.

Futures: at least 10 minute delayed. Information is provided 'as is' and solely for informational purposes, not for trading purposes or advice. To see all exchange delays and terms of use, please see disclaimer.

Continuing Education
Potassium nitrate has a positive effect in controlling plant pests and diseases when applied...
This online CE course details sound mechanical irrigation design and management practices to...