Half Magnetic Drum Separator – Automatic Self‑Cleaning Permanent Drum for Bulk Solids & Powder Processing

MAG SPRING®’s Half Magnetic Drum Separator is designed for efficient, maintenance‑free removal of ferrous contaminants from bulk solids, granules, pellets, powders, and recycled materials.
Using a 180° permanent‑magnet drum enclosed in a stainless‑steel housing, the unit enables continuous self‑cleaning, ideal for industrial production lines.

What Is a Half Magnetic Drum Separator?

A Half Magnetic Drum Separator uses a permanent magnetic drum covering approximately half the drum circumference. As material flows over the drum surface, ferrous particles are attracted and held in the magnetic zone; when the drum rotates into the non‑magnetic zone, captured iron particles are released and collected, allowing continuous operation without interruption.

The drum is constructed with SUS304 / 316L stainless steel, ensuring resistance to corrosion and suitability for industrial environments.

Magnetic Strength — Up to 6000 Gauss (Gs)

This model provides a maximum surface magnetic field intensity of 6000 Gs, optimized for:

• coarse ferrous debris, metal chips and scrap
• plastic pellets, granules, regrind material
• recycled plastics, grains, aggregates, bulk solids
• applications where material flow is free‑flowing or granulated

Recommended Use Cases by Material & Contaminant Type

Note: Because the maximum magnetic strength is 6000 Gs, this separator is optimized for larger ferrous contaminants and free‑flowing materials. It is not designed for ultra-fine iron dust or weakly magnetic stainless-steel particles. For fine-powder or high-purity applications, consider alternative magnetic separation solutions with higher Gauss ratings.

Why Choose Half Magnetic Drum Separator?

• Automatic Self‑Cleaning Drum — continuous operation without manual cleaning or downtime.
• Durable Stainless‑Steel Construction — suitable for heavy-duty industrial environments.
• Effective Removal of Coarse Ferrous Contamination — protects downstream equipment (mills, grinders, extruders, packaging lines) from damage.
• Cost-Effective Bulk Material Processing — ideal for plastics, recycling, aggregates, feed, and other bulk solids industries.
• Low Maintenance & Long Lifespan — permanent magnet system does not require power or frequent replacement; robust housing resists wear.
• Customizable Dimensions & Installation — supports various drum diameters, lengths, and mounting configurations to fit your production line.

Typical Specifications & Customization Options

• Drum Shell Material: 304 / 316L stainless steel
• Magnetic System: Permanent rare‑earth magnets (surface field up to 6000 Gs)
• Drum Coverage: Magnetic zone ~180° of drum circumference
• Suitable Material Flow: Bulk solids, granules, pellets, aggregate, plastic regrind, recycled materials
• Cleaning Mode: Automatic self‑cleaning with scraper + gravity discharge to collection bin
• Mounting Options: Conveyor-mounted, chute-mounted, hopper-discharge-mounted

Custom dimensions, housing types, and mounting designs available upon request; please contact MAG SPRING® team for detailed specifications.

Application Scope — Materials & Industries

The Half Magnetic Drum Separator is ideal for continuous ferrous removal in:

• Plastic Pellets & Regrind Processing — removing metal scraps from recycled plastic pellets, flakes or regrind material.
• Recycling & Scrap Handling — sorting out metal contamination from mixed plastic, rubber, or composite wastes.
• Aggregates, Sand & Minerals — separating metal debris from aggregates, sand, gravel, or ceramic raw materials.
• Feed, Grain & Bulk Materials — protecting storage, conveying, and packaging equipment by removing metal contamination from grains, seeds, feeds.
• Construction Materials & Ceramics — ensuring raw materials are free from metal contamination before further processing.

Maintenance, Cleaning & Longevity

• Permanent magnet requires no electricity and retains magnetic strength over many years.
• Stainless-steel housing ensures excellent resistance to abrasion and corrosion — suitable for continuous industrial use.
• Automatic self‑cleaning via scraper and gravity discharge helps keep maintenance minimal.
• For heavy contamination loads, periodic check of discharge bin and scraper assembly is recommended to ensure smooth operation.

FAQ – Frequently Asked Questions

Q1. What is the maximum magnetic strength of this Half Magnetic drum separator?
A: The Half Magnetic Drum Separator offers up to 6000 Gs surface magnetic field—that’s sufficient to remove coarse ferrous debris, metal scraps, and larger metal pieces.

Q2. Can this separator remove fine iron dust or stainless‑steel particles?
A: No — with the 6000 Gs specification, it is not optimized for very fine iron dust or weakly magnetic stainless-steel fragments. For those applications, a high‑Gauss magnetic separator (e.g. magnetic bar filter rated for fine powders) is recommended.

Q3. What materials is this drum best suited for?
A: Bulk solids, granules, pellets, plastic regrind, recycled plastics, aggregates, sand, minerals, feed/grain, non‑sticky powders, and other free-flowing materials.

Q4. Is manual cleaning required?
A: No — the separator uses an automatic self‑cleaning drum and scraper design that discharges collected ferrous debris without stopping production.

Q5. Can dimensions or configurations be customized?
A: Yes — MAG SPRING® supports customization of drum diameter, length, housing material, mounting method, and other parameters to fit customer’s production line requirements.

Related Products & Alternative Solutions

• Drawer‑Type Magnetic Separators (for bulk solids & granules)
• Auto Rotary  Grate Magnetic Separators (for sticky or poor-flow materials)

• Automatic Magnetic Liquid Trap （for liquids）

• Plate‑Type & Belt‑Type Magnetic Separators (for conveyors & sheet-flow materials)