Product Details
Some materials don't flow evenly — they arrive in lumps, at high volume, and abrasive enough to wear out a delicate separator fast. The PML Magnetic Hump is built for exactly that: a gravity free-fall separator for feed, grain, wood chips, foodstuffs, sand and plastic, using an offset "Z" arrangement of two magnetic plates to both break up lumps and capture embedded iron as material drops through.
How It Works
Two magnetic plates are mounted in an offset "Z" arrangement inside a vertical housing rated for gravity flow and moderate positive or negative pressure. The angled shape directs falling material into the magnetic field while preventing it from bridging or building up. Material strikes the first magnet, changes direction, and falls onto the second — giving ferrous contamination two separate chances to be captured before clean product exits.
High or Low Intensity
| Grade | Field Strength | Max. Operating Temp. | Attraction Distance |
| High-Intensity (RHMH / SHMH) | 4,500 ± 500 Gauss | 80°C | 3–4″ |
| Low-Intensity (RLMH / SLMH) | 1,500 ± 200 Gauss | 250°C | 4–6″ |
Standard Range (Round Shape, High-Intensity)
| Model | Inlet/Outlet Dia. (mm) | Total Height (mm) | Magnetic Plate Size (mm) |
| RHMH-10 | 100 | 800 | 205×105×46 |
| RHMH-15 | 150 | 800 | 255×155×46 |
| RHMH-20 | 200 | 950 | 305×205×46 |
| RHMH-25 | 250 | 1100 | 355×255×46 |
| RHMH-30 | 300 | 1200 | 405×305×46 |
The same five sizes are available in square inlet format (SHMH series) and in low-intensity round/square variants (RLMH/SLMH) — every configuration ships with matching inlet and outlet flanges.
Key Advantages
- Breaks Lumps and Captures Iron
The offset Z-design does both jobs in one pass — no separate de-lumping stage needed.
- Built for Abrasive, High-Volume Flow
Housing and plates are rated for the toughest free-fall applications: sand, grain, wood chips and similar bulk materials.
- Hinged Plates
High-power magnetic plates are hinged for easy periodic cleaning.
- No Power Cost
Fully passive permanent-magnet operation, maintenance-free beyond periodic cleaning.
Frequently Asked Questions
Round or square inlet — which do I need?
It comes down to your existing duct or chute opening — both shapes are available across the same size and intensity range.
What makes this different from a magnetic chute?
The offset two-plate "Z" design specifically targets lumpy, high-volume, abrasive materials — breaking up lumps as it separates, rather than just trapping iron from a steady free-flowing stream.
How is it cleaned?
The magnetic plates are hinged and swing open for periodic manual cleaning — no tools or power required.
Why Buy From PML
- 65+ years of magnetic separation engineering — equipment built for the toughest bulk-material handling applications.
- Made and tested in-house — every unit is manufactured and checked to its stated Gauss rating.
- Two intensity grades — from 1,500 Gauss (250°C) to 4,500 Gauss (80°C), matched to your material.
- Magnetic calibration and audit services available to verify field strength over time.
Handling lumpy, abrasive or high-volume material? Enquire now and our engineering team will size the right hump for your line.