Cedar Instruments Co. • EST. 1993 • 30+ YEARS OF INDUSTRIAL WEIGHING & AUTOMATION

RELIABLE • FAIL-SAFE • BIN LEVEL DETECTION

Rotary Paddle Level Switches

Cedar Rotary Paddle Level Switches provide reliable point-level detection for powders, granules, pellets, and other bulk solids stored in bins, silos, hoppers, and process vessels. Designed for dependable operation in demanding industrial environments, they help prevent overfilling, dry running, and production interruptions while integrating seamlessly with alarms, PLCs, and process control systems.

Available in Standard and High-Temperature models for a wide range of industrial applications.

Bins • Silos • Hoppers

Point Level Detection

Request a Quote
View Specifications

Powders • Granules • Pellets

Product Overview

Cedar Rotary Paddle Level Switches use a continuously rotating paddle to detect the presence or absence of bulk materials inside storage vessels. Under normal conditions, the paddle rotates freely. When material reaches the paddle, the motor stalls, activating an internal switch that sends a level signal to the control system.

This simple yet highly reliable operating principle makes rotary paddle switches one of the most trusted technologies for high-level, low-level, and intermediate point-level detection across numerous industries.

The Cedar range includes both Standard and High-Temperature models, allowing reliable operation in conventional storage applications as well as elevated-temperature process environments.

Available Models
BL-108
BL-108HT

Extended shaft and heat isolation

High-temperature silos

Caustic Soda production

Hot Powder Storage

Heated Material Hoppers

Process vessels operating at elevated temperatures

For standard industrial bins

Powders

Granules

Pellets

Normal Process

For most industrial storage applications

Key Features

Reliable Point Level Detection

Easy Installation

PLC & Alarm Integration

Fail-Safe Operation

Heavy-Duty Industrial Construction

Accurate high, low, or intermediate level sensing.

Simple mechanical operating principle with dependable switching.

Compatible with industrial control systems, alarms, and automation equipment.

Threaded mounting for side or top installation.

Built for continuous industrial operation.

Suitable for a wide range of bulk material densities.

Reliable operation even with dense bulk materials.

Adjustable Sensitivity

High Torque Motor

How it Works

Installation Positions

Side-mount rotary paddle level switches can be installed at multiple heights to detect high, intermediate, and low levels.

Specifications

Contact sales@cedarinstruments.com for orders and queries.

Request a Quote
Download Brochure

Looking for the right weighing solution?

Our experts are ready to help you choose the perfect system for your application.

Contact Us
Applications

Grain Storage Silos

High and low level monitoring of wheat, rice, maize, and other grains.

Animal Feed Plants

Cement Industry

Plastic Industry

Chemical Industry

Food Processing

Mining & Minerals

Storage bins, feed mixers, and hopper level monitoring.

Cement, fly ash, lime, and dry powder storage.

Plastic pellets, resin, and polymer granules.

Powders, granules, pigments, and industrial chemicals.

Flour, sugar, salt, spices, coffee, cocoa, and food ingredients.

Ore powders, minerals, and bulk processing equipment.

Why Choose Cedar?

30+ Years of Experience

High-Quality Components

Precision Engineering

Installation & Setup

Training & Support

Spare Parts Availability

Modern dark buildings against a clear blue sky

FAQs

What is a Rotary Paddle Level Switch?

A Rotary Paddle Level Switch is a point-level sensor that detects the presence or absence of bulk materials by monitoring the rotation of a motor-driven paddle.

Can it be connected to a PLC?

Yes. The output can easily interface with PLCs, alarm systems, conveyors, and other industrial automation equipment.

Can it be used for both high and low level detection?

Yes. Depending on its installation position, the switch can detect high level, low level, or intermediate material levels.

Does it require frequent maintenance?

Very little. The simple mechanical design provides a long service life with minimal maintenance under normal operating conditions.

Where can it be installed?

The switch can be mounted from the top or side of bins, silos, hoppers, storage vessels, and processing equipment.

What is the difference between the Standard and High-Temperature models?

The Standard model (BL-108) is intended for normal industrial environments, while the High-Temperature model (BL-108HT) is designed for applications involving elevated process temperatures where conventional sensors cannot operate reliably.