Product Description
The SLO Rotary Paddle Level Switch is a reliable solution for point level detection in powders, granules, pellets, and other bulk solid materials. It is widely used in silos, storage bins, hoppers, and tanks to monitor material levels and help prevent overflow, empty-bin conditions, and unnecessary production downtime.
This model uses a motor-driven rotary paddle detection principle. Under normal conditions, the paddle rotates continuously at a low speed when no material is present. When the stored material reaches the paddle position, the resistance stops the blade rotation and activates the internal switching mechanism, sending a signal for alarms, feeding control, or conveyor shutdown. Once the material level drops, the paddle automatically resumes rotation and resets the system.
Built with a compact aluminum housing and 304 stainless steel contact components, the SLO model offers strong durability in dusty and demanding industrial environments. The integrated LED indicator lights allow operators to quickly monitor working status, while the threaded installation design ensures fast and convenient mounting on various storage systems.
Its stable structure, simple installation, and low maintenance requirements make it a cost-effective solution for long-term bulk material level monitoring.
Working Principle
The internal motor drives the paddle blade to rotate at a stable speed of 1 RPM.
When no material reaches the paddle, the blade continues rotating normally.
When powder, granules, or bulk solids cover the blade, the material resistance stops the paddle rotation.
The internal mechanism then outputs a switching signal to trigger alarms or control equipment.
After the material level decreases, the paddle rotates again and returns to normal operation automatically.
Technical Features
Compact aluminum housing for long-term industrial durability
Built-in LED indicators for visual operation monitoring
304 stainless steel wetted parts for corrosion resistance
Stable low-speed motor design for reliable performance
G1 threaded connection for quick installation
IP65 protection for dusty working environments
Suitable for powders, pellets, granules, and bulk solids
Technical Parameters
| Item | Specification |
|---|---|
| Product Name | SLO Rotary Paddle Level Switch |
| Model | SLO51AF200S |
| Measuring Length | 200 mm |
| Operating Temperature | -10°C ~ 80°C |
| Power Supply | 220 VAC |
| Process Connection | G1 Thread |
| Rotation Speed | 1 RPM |
| Material | 304 Stainless Steel |
| Protection Grade | IP65 |
| Output Type | Switch Signal |
| Application Medium | Powder, Granules, Bulk Solids |
Typical Applications
Cement storage silos
Grain storage bins
Feed processing systems
Plastic pellet storage tanks
Chemical powder handling systems
Mining material storage
Flour and food processing plants
Bulk material conveying systems
