The Paker rotary paddle level switch from Korea uses a slowly rotating paddle driven by a small motor: when bulk solids stop the paddle, the switch signals full or empty. Simple, robust and economical – widely used in feed mill silos and bins. For combustible dust, ATEX-certified versions to EN 60079-31 are used.

Paker rotary paddle level switch specifications
| Parameter | Value |
|---|---|
| Model | JB-SD |
| Supply | 220 VDC (per model code) |
| Origin | Korea |
| Application | Bulk solids: bran, grain, pellets, powders |
How a rotary paddle level switch works

Top mounting gives high-level (overfill) alarms; side mounting gives high or low-level alarms. When material clears the paddle, the motor restarts and the switch resets.
Choosing the right level technology

Applications
- Bran, maize, soybean meal and pellet silos in feed mills.
- Cement, lime, dry sand and plastic pellet bins.
- Feed hoppers ahead of pellet presses.
Combustible dust safety
Bran and grain dust can form explosive atmospheres. Silo interiors are often classified Zone 20/21 under 1999/92/EC, requiring ATEX dust-certified equipment.
Reference standards
| Standard | Scope |
|---|---|
| ATEX 2014/34/EU | Equipment for combustible dust atmospheres (Ex versions) |
| EN 60079-31 | Dust ignition protection by enclosure “t” |
| 1999/92/EC | Zone 20/21/22 classification on site |
| EN 61326-1 | EMC |
Related products
Contact ISE
EQUIPMENT INDUSTRIAL SOLUTION CO., LTD (ISE) – Ho Chi Minh City, Vietnam.
Contact us: Sales +84 909 617 185 – Technical +84 979 117 185 – Email: [email protected]