Product Details
Fine, weakly-magnetic iron contamination is difficult to remove from dry bulk material without stopping the line to clean the separator constantly. The PML Magnetic Roller Separator — also known as a roll-type magnetic separator or magnetic destoner — is built for exactly that challenge: a high-intensity magnetic roller running up to 10,000 Gauss, capturing fine and weakly-magnetic particles continuously, with self-cleaning operation that keeps production running.
How It Works
Material is fed onto a conveyor belt via a feeder unit. At the discharge point, it enters the magnetic zone of the high-intensity NdFeB roller (which doubles as the head pulley). Magnetic particles are attracted and carried further along the belt before dropping into a dedicated collection chute once they clear the field; non-magnetic material continues forward as purified product. Because the roller itself does the separating as the belt runs, there's no separate cleaning cycle needed — it's continuous, self-cleaning operation by design.
Also a Magnetic Destoner
Beyond iron removal, the same system effectively removes small stones, soil particles and other metallic impurities from grains and similar bulk materials — a dual-purpose separator for grain and food processing lines.
Key Advantages
- Up to 10,000 Gauss
High enough field strength to capture fine and weakly-magnetic particles that lower-intensity separators miss.
- Single, Double or Triple Stage
Configure additional stages in series for progressively higher purity requirements.
- Continuous Self-Cleaning
No shutdowns for manual cleaning — separation happens continuously as the belt runs.
- Hygienic Contact Parts
Stainless steel contact parts available for food and pharmaceutical applications.
Construction
The system comprises a high-intensity NdFeB magnetic roller acting as the head pulley, a non-magnetic tail pulley, a conveyor belt in Kevlar or an application-specific material, a feeder unit, separate discharge chutes for magnetic and non-magnetic material, and a mild steel structural frame with stainless steel contact parts where hygiene requires it.
Where It's Used
Glass sand purification, mineral processing (quartz, silica, feldspar), food processing (grains, spices), chemical industries, and recycling or general bulk material handling.
Frequently Asked Questions
Single, double or triple stage — which do I need?
It depends on the purity level you need to hit. A single stage handles most standard separation needs; double or triple stages in series are used where output purity requirements are stricter.
Does it need manual cleaning?
No — the roller design is inherently self-cleaning as the belt runs continuously, unlike static magnetic separators that need periodic manual clearing.
Can it remove stones as well as iron?
Yes — the same system functions as a magnetic destoner, removing small stones and soil particles alongside metallic contamination from grains and similar materials.
Why Buy From PML
- 65+ years of magnetic separation engineering — high-intensity separation systems for glass, mineral, food and chemical processing.
- Made and tested in-house — every roller is manufactured and checked to its stated Gauss rating.
- Configurable staging — single, double or triple stage systems built around your purity target.
- Magnetic calibration and audit services available to verify field strength over time.
Need help specifying the right stage configuration? Enquire now and our engineering team will size the right separator for your process.