Product Details
High-volume bulk and granular lines can't stop for cleaning every few minutes — they need continuous separation. The PML Magnetic Drum Separator is a self-cleaning system built exactly for that: a rotating drum with a stationary internal magnet that captures ferrous fines, nuts, bolts, pins, nails and other tramp metal from free-flowing material without ever pausing the line.
Supplied complete with Stainless Steel 304/316 housing and drive, or as a standalone drum unit for integration into your own equipment.
How It Works
Material flows onto the rotating drum, where a stationary magnetic assembly inside the shell captures tramp metal and holds it to the drum's stainless steel surface. Clean product falls freely to a discharge point. As the drum keeps turning, cleats sweep the captured ferrous debris through and out of the magnetic field, discharging it separately — continuous, self-cleaning separation with no manual intervention.
High-Intensity or Low-Intensity
| Grade | Magnets | Field Strength | Max. Operating Temp. |
| High-Intensity | NdFeB | 4,500 Gauss | 80°C |
| Low-Intensity | Ferrite | 1,200 Gauss | 250°C |
Standard Range (With SS Housing & Drive)
| Model No. | Grade | Diameter (mm) | Length (mm) |
| MDHL1 / MDHH1 | Low / High | 300 | 300 |
| MDHL2 / MDHH2 | Low / High | 300 | 450 |
| MDHL3 / MDHH3 | Low / High | 400 | 600 |
| MDHL4 / MDHH4 | Low / High | 450 | 750 |
| MDHL5 / MDHH5 | Low / High | 500 | 1000 |
The same 5 sizes are available as a standalone drum without housing and drive, for OEMs integrating the drum into their own equipment.
Key Advantages
- Truly Continuous
Self-cleaning drum action means no downtime for manual cleaning, even in heavy-contamination applications.
- Protects Downstream Equipment
Guards crushers, grinders, pulverisers and process equipment from tramp metal damage.
- Reduces Fire and Explosion Risk
Removing ferrous sparks-risk material is critical in plants handling combustible or explosive materials.
- PLC/VFD-Ready
Can be equipped with PLC and VFD control for integration into automated lines.
Where It's Used
Minerals and chemicals, food and flour, plastics, grains, sand, fertilisers, abrasives, glass, slag, ores, rock and refractory processing — anywhere high-volume bulk material needs continuous iron removal.
What We Need for a Custom Drum Separator Quote
- Type of material (sticky, granular, free-flowing, lumps, etc.)
- Size and level/percentage of contamination
- Flow rate of material
- Size and density of the material particle
Frequently Asked Questions
Do I need housing and drive, or just the drum?
If you're integrating into existing equipment, the standalone drum is often enough. For a complete, ready-to-install unit, order with the SS housing and drive package.
Can multiple drums be used together?
Yes — PML offers comprehensive systems combining 2 or 3 drum separators with other magnetic equipment in series, to bring output contamination down to minimum PPM.
How does self-cleaning work without stopping the drum?
The magnet inside is stationary while the drum shell rotates — once captured material rotates past the edge of the internal magnet's field, it releases automatically into a separate discharge, with no interruption to the drum's rotation.
Why Buy From PML
- 65+ years of magnetic separation engineering — trusted by Ambuja Cements, Ultratech Cements, Sterlite Industries and Metso Minerals, among others.
- Made and tested in-house — every drum is manufactured and checked to its stated Gauss rating.
- Full intensity range — from 1,200 Gauss (up to 250°C) to high-intensity 4,500 Gauss (up to 80°C).
- Magnetic calibration and audit services available to verify field strength over time.
Need a custom diameter, length or multi-drum system? Enquire now and our engineering team will size the right separator for your line.