Product Details
Grills and rods catch iron in dry material — but a lot of contamination travels in liquid form: suspended in oils, slurries, coolants and process fluids where it's invisible until it damages downstream equipment or shows up in the finished product. The PML Magnetic Filter is built for exactly that: an inline pipeline filter using high-intensity NdFeB or ceramic magnets to pull ferrous particles as small as 10 microns out of a flowing liquid stream.
With 65+ years of permanent magnet engineering behind it, PML is one of India's established magnetic filter manufacturers, supplying the chemical, food, pharmaceutical, oil and hydraulic industries.
How It Works
The filter is installed inline along the fluid flow path. As liquid passes through the housing, it travels around high-intensity magnetic elements arranged in a circular format, maximising exposure to the field. Fine ferrous particles are captured and held on the elements; collected iron is removed manually by lifting the top lid, or automatically in self-cleaning models via a drain-plug flush.
Before & After: What the Filter Captures
Manually Cleaned vs. Self-Cleaning
- Manually Cleaned (11,000 Gauss)
Magnetic elements fixed to the top lid in a circular array. Iron is removed by lifting the lid off after use.
- Self-Cleaned (6,500 Gauss)
Elements sit inside removable sleeves — lifting the lid pulls the elements clear of the sleeves, dropping the trapped iron to the base for flush-out through the drain plug with pressurised water, without full disassembly.
Food-Grade Coating Options
For food, pharma and other hygienic-processing lines, the filter housing is available with a PTFE or an anti-static, food-grade ETFE coating in place of bare stainless steel.
PTFE coating:
ETFE anti-static, food-grade coating:
Where It's Used
Liquid pharmaceutical and food products, chemicals and solvents, lubricants and hydraulic oils, coolants, slurries and semi-fluid materials, paint pigments and adhesives, and ceramic and paper industry process fluids.
Standard Range
| Standard Permanent Magnetic Filter (11,000 Gauss, ASA 150 flanges) | |||||
|---|---|---|---|---|---|
| Model No. | Pipe Size | Height A (mm) | Dia. B (mm) | Elements | Flow Rate (L/min) |
| F001 / FH001 | 1″ | 200 | 150 | 5 | 200 |
| F002 / FH002 | 2″ | 250 | 200 | 5 | 500 |
| F003 / FH003 | 2″ | 250 | 200 | 7 | 500 |
| F004 / FH004 | 3″ | 300 | 300 | 9 | 1200 |
| F005 / FH005 | 3″ | 450 | 300 | 12 | 2000 |
| Super High Intensity Magnetic Filter (12,000 ± 500 Gauss, max. 80°C) | |||||
| SF001 | 1″ | 200 | 150 | 5 | 200 |
| SF004 | 3″ | 300 | 300 | 9 | 1200 |
| SF005 | 3″ | 450 | 300 | 12 | 2000 |
Standard units are rated for 5 kg/sq cm and 80°C operation and can be engineered for higher pressure or up to 200°C on request. High-intensity 9,000 Gauss versions rated to 250°C are also available.
What We Need for a Custom Filter Quote
- Type of fluid
- Flow rate
- Size and concentration of contamination
- Inlet and outlet flange connection size
- Required processing volume
Frequently Asked Questions
Manual or self-cleaning — which do I need?
Self-cleaning is the better fit for continuous, high-throughput lines where downtime for manual lid removal is costly. Manually cleaned units are simpler and cost less where cleaning cycles are infrequent.
What's the smallest particle size it captures?
Down to 10 microns, at the standard 11,000 Gauss rating.
Can these run in series?
Yes — PML offers comprehensive filtration systems using 2 or 3 filters in series to bring output contamination down to a minimum PPM level.
Why Buy From PML
- 65+ years of magnetic separation engineering — supplying magnetic filters to India's food, pharmaceutical, chemical, oil and paper industries.
- Made and tested in-house — every filter is hydraulically tested to check for leakage at welds and seals before dispatch.
- Full intensity range — from 9,000 Gauss (250°C) to 12,000 Gauss super-high-intensity, plus custom-designed systems.
- Magnetic calibration and audit services available to verify field strength over time.
Need a custom flange size, flow rate or multi-stage system? Enquire now and our engineering team will size the right filter for your line.