Bindicator® paddlewheel level switches—such as the Roto-Bin-Dicator® and Roto-Bin-Dicator® PRO—are industry leading rotary paddle devices designed for reliable point level detection in dry bulk solids. These switches detect the presence or absence of material inside a bin, hopper, silo, or chute, helping prevent overfills, clogged chutes, empty bins, and surge issues.
With a legacy dating back to 1936, Bindicator is one of the most established and trusted manufacturers of level measurement technology, with over one million instruments in operation worldwide. These heavy duty paddle switches are valued for their simplicity, ruggedness, versatility, and ease of installation.
Key Benefits
1.) Rugged, Long Life Construction
- Built for extreme industrial environments, with designs proven to withstand vibration, dust, harsh temperatures, and rough handling.Â
- Manufactured in an ISO‑9001 facility and available with global safety approvals (UL, FM, CSA, ATEX, IECEx).Â
2.)Â Simple, Reliable Operation
- A rotating paddle turns freely until material impedes movement, triggering a switch to indicate a high or low level.Â
- No calibration or special tools required—making installation fast and maintenance minimal.Â
3)Â Moisture & Seize Protection
- The paddle stops turning when material is present, but the motor continues to run, heating the internal cavity to reduce condensation and prevent paddle seizure—an exclusive Bindicator design advantage.Â
4.) Highly Flexible Configuration
- Wide range of paddle styles, shaft extensions, and process fittings allows adaptation to virtually any bulk‑solid material or mounting orientation.Â
- Suitable for vertical or horizontal mounting depending on application needs.
5.) Fail‑Safe & Safety Options
- High‑/low‑level fail‑safe protection is available on SuperSafe models, along with visual indicators for power and alarm states.Â
Common Uses
Bindicator paddlewheel level switches are used throughout the dry‑bulk industry for point‑level detection in a wide variety of materials and conditions:
Dry Bulk Solids
- Powders, grains, pellets, plastic resin, cement, flour, sugar, aggregates, and feed products.
- Suitable for both high‑level and low‑level detection.Â
Hopper, Silo & Bin Monitoring
- Preventing overflow or over‑filling
- Avoiding empty‑bin conditions
- Controlling conveyors and discharge systems
Plugged Chute & Flow Confirmation
- Detecting blocked chutes
- Confirming material presence/absence during conveying or pneumatic transfer
High‑Temperature or High‑Dust Environments
- Rugged construction and motor‑heat cavity protection ensure stable operation in challenging conditions.Â
Summary
Bindicator® paddlewheel level switches offer robust, dependable, and easy‑to‑install point‑level detection for nearly all dry bulk materials. Their mechanical simplicity, rugged industrial construction, moisture‑resistant design, and broad range of paddle and mounting options make them a top choice for preventing overflow, protecting equipment, and ensuring consistent material flow.
With nearly a century of industry leadership and proven performance in harsh environments, Bindicator paddlewheel switches remain one of the most trusted solutions for bulk solids level monitoring.
