Grain Handling – Control, Flow, and Safe Operation

In the grain industry, every step in the handling chain is crucial – from reception and drying to storage and outloading. Being able to move and store grain in a safe, efficient, and controlled manner is essential for high productivity and good economics, whether on a farm or in a larger facility.

Challenges in Grain Handling

Grains like wheat, barley, oats, and corn are natural materials that behave differently depending on moisture, temperature, and particle size. This places high demands on the equipment:

• Blockages in conveyors

• Overfilling in silos

• Equipment damage due to material jams

• Unnecessary downtime during emptying

Avoiding these problems requires not only robust mechanical systems but also smart monitoring solutions that provide the operator with the right information at the right time.

Control Over Material Flow – A Key to Efficiency

Knowing exactly when a silo is full, or when a receiving hopper is empty, is crucial for optimizing transport logistics, drying, and storage capacity. Level monitoring plays an important role here – not as a separate system, but as an integrated part of grain handling.

A simple yet reliable solution is the use of diaphragm level switches, which respond to the pressure from the grain and send signals to the control system or an alarm. They work without moving parts, require minimal maintenance, and are highly suitable for dusty environments.

Examples of Application Areas

• Receiving stations: Prevent overfilling during unloading from wagons or trucks

• Dryers: Ensure even material flow and avoid clogs

• Silos: Get clear information about when to start or stop filling

• Conveyors and elevators: Protect equipment from blockages and overload

Simple, Robust, and Tailored for Grain

One example of a level switch well-suited for grain handling is the Elniva NV 14P – a mechanical diaphragm sensor that mounts in the wall of a silo or conveyor and responds when the material presses against a rubber diaphragm. It handles grains like wheat, corn, rye, barley, and feed pellets, and works equally well for high- and low-level alarms.

For tighter spaces, such as screw conveyors or cleaning machines, a compact version (NV 10P) is available and works excellently as overfill protection.

Summary: How to Improve Grain Handling

Less downtime through better monitoring
Less waste and damage thanks to overfill protection
More efficient logistics during reception and outloading
Easier operation – you always know when to act