Product Details
Sticky, moist powders don't behave in a fixed grill — they form lumps that bridge across the rod grid and block the flow entirely. The PML Magnetic Rota Grid Separator solves this the way its name suggests: the magnetic rod assembly rotates continuously, so material never gets the chance to lump or bridge, even when it's damp or naturally sticky. It's built for exactly the materials that defeat a static grill — widely used in food, chemical and pharmaceutical processing.
How It Works
The magnetic assembly is a Rota Grid — magnetic rods arranged around the periphery of a shaft, coaxially mounted and driven by a gear motor outside the housing. As the shaft rotates, the grid continuously reorients through the material stream, capturing ferrous contamination while preventing the powder from settling and bridging across it. All powders and granular materials, sticky or free-flowing, can be processed effectively through the same unit.
Standard Range — High-Intensity, 11,000 ± 500 Gauss, Max. Operating Temp. 80°C
| Model No. | Inlet/Outlet Dia. (mm) | Total Height (mm) | Drive (kW) | Magnetic Elements |
| MRGS-1 | 150 | 400 | 0.37 | 5 |
| MRGS-2 | 200 | 450 | 0.37 | 6 |
| MRGS-3 | 250 | 500 | 0.37 | 7 |
| MRGS-4 | 300 | 550 | 0.37 | 9 |
| MRGS-5 | 350 | 600 | 0.37 | 10 |
| MRGS-6 | 400 | 650 | 0.37 | 13 |
Key Advantages
- No Bridging
The rotating grid keeps sticky or moist powders moving instead of forming lumps that block flow.
- Handles What Fixed Grids Can't
Effective on both sticky, moisture-laden material and standard free-flowing powders and granules, in the same unit.
- High-Intensity Capture
11,000 ± 500 Gauss removes fine ferrous contamination reliably.
- Sealed, Geared Drive
The gear drive sits outside the housing, keeping the product-contact area clean and simple to maintain.
Where It's Used
Food, chemical and pharmaceutical processing lines handling sticky, moist or lump-prone powders and granules — anywhere a standard fixed magnetic grid risks bridging and blocking flow.
Frequently Asked Questions
How is this different from a standard magnetic grill?
A standard grill uses a fixed rod bed, which can bridge and block when material is sticky or moist. The Rota Grid's rods rotate continuously, so lumping material can't build up and block the flow.
What drives the rotation?
A gear motor mounted outside the housing, directly coupled to the rota grid shaft — standard units run on a 0.37kW drive.
Can it handle both sticky and free-flowing material?
Yes — the rotating design handles both without needing different equipment for each.
Why Buy From PML
- 65+ years of magnetic separation engineering — purpose-built solutions for the materials that defeat standard grills.
- Made and tested in-house — every unit is manufactured and checked to its stated Gauss rating.
- Engineered for difficult materials — sticky, moist and lump-prone powders processed reliably.
- Magnetic calibration and audit services available to verify field strength over time.
Handling a material that keeps bridging your current separator? Enquire now and our engineering team will size the right Rota Grid for your process.