Half magnetic drum separator (partial magnetic drum with outer housing) delivers superior ferrous separation efficiency for dry granular material processing. Unlike full drum designs, our semi-magnetic drum with enclosed housing concentrates magnetic force in a 120°-180° active arc, achieving deeper magnetic field penetration and stronger iron capture from dry bulk solids.
The stationary magnetic assembly inside the rotating stainless steel shell ensures zero demagnetization risk, while the protective outer housing prevents material spillage and environmental contamination. Ideal for mining, recycling, aggregates, and food-grade applications requiring reliable tramp iron removal.
Our drum magnetic separators for dry and granular materials are ideal for:
Mining and Quarrying: Remove iron from granular ores and aggregates.
Recycling Plants: Efficiently separate scrap metal from dry granular material streams.
Aggregate Handling: Protect crushers, conveyors, and other equipment while ensuring product purity.
Food and Biomass Processing: Safeguard granular products such as pellets, grains, and biomass from ferrous contamination.
Fertilizer Production: Maintain high-quality granular fertilizer free from iron particles.
The Half Drum Magnetic Separator with Housing, also known as a Drum Half Magnetic Separator, is specially designed for dry and granular materials, providing efficient removal of ferrous contaminants from bulk solids. Using high-intensity permanent magnets, it separates tramp iron and other ferrous particles from material streams, protecting downstream equipment, improving product quality, and ensuring smooth, continuous production.
Key Advantage: The stationary internal magnet assembly never rotates, ensuring permanent magnetic strength retention and eliminating mechanical wear on magnetic components.
| Feature | Half Magnetic Drum + Housing | Full Magnetic Drum |
|---|---|---|
| Magnetic Field Distribution | Concentrated 120°-180° active arc | 360° weak uniform field |
| Magnetic Penetration Depth | 50-80mm (stronger field) | 20-40mm |
| Magnet Retention | Stationary assembly, no centrifugal loss | Rotating magnets, adhesion risk |
| Material Containment | Enclosed housing prevents spillage | Open drum, dust exposure |
| Maintenance Access | Side-opening housing design | Full drum disassembly required |
| Energy Efficiency | No power needed (permanent magnet) | Same |
The half magnetic drum separator structure positions high-intensity rare earth magnets in a fixed internal assembly, with only the stainless steel shell rotating. This creates three critical advantages:
Permanent Magnet Technology
The permanent magnet drum separator captures iron and ferrous particles from dry or granular materials without requiring external power, reducing operating costs while maintaining high separation efficiency.
Customizable for Dry Material Handling
These industrial drum magnetic separators can be tailored to your conveyor width, pulley diameter, material type, and flow rate, ensuring optimal performance for dry bulk materials.
Self-Cleaning Options
Some models include self-cleaning mechanisms, automatically ejecting captured metal into a collection bin, reducing downtime and maintenance requirements.
High-Intensity Rare Earth Magnets
Equipped with rare earth magnets, our drum separators can remove even fine iron particles from granular materials, providing high separation efficiency and consistent product quality.
Versatile Applications for Dry Materials
Optimized for granular ores, aggregates, pellets, grains, and biomass, these separators are ideal for industrial processes where ferrous contamination is a concern.
| Magnetic Configuration | Semi-magnetic drum (partial arc) |
| Active Magnetic Arc | 120° / 150° / 180° (customizable) |
| Magnet Type | Stationary NdFeB rare earth or ferrite |
| Magnetic Strength | 3000-14000 Gauss at drum surface |
| Field Depth | 50-100mm into material layer |
| Drum Construction | Rotating stainless steel 304/316 shell |
| Shell Thickness | 3-5mm (wear-resistant options) |
| Housing Material | Carbon steel with powder coating / Stainless steel |
| Housing Design | Fully enclosed with inspection doors |
| Sealing | Dust-tight labyrinth seals |
| Discharge Chute | Integrated ferrous collection hopper |
| Belt Width Compatibility | 400mm – 2000mm |
| Drum Diameter | 200mm – 500mm (semi-magnetic type) |
| Maximum Belt Speed | 4.0 m/s |
| Material Layer Depth | Up to 100mm (depending on magnet strength) |
| Cleaning Method | Self-cleaning (scraper) / Manual (inspection doors) |
Efficient Ferrous Removal: Protects equipment and improves material purity.
Optimized for Dry and Granular Materials: Designed for bulk solids, pellets, and granular ores.
Energy Efficient: Permanent magnet operation requires no electricity.
Customizable and Scalable: Suitable for various conveyor systems and material types.
Low Maintenance: Optional self-cleaning design reduces labor requirements.
Magnet Type: Rare earth or ferrite
Belt Width Compatibility: 400mm – 2000mm (custom sizes available)
Pulley Diameter: 200mm – 800mm (tailored to requirement)
Material Construction: High-strength steel drum with wear-resistant coating
Operation: Self-cleaning or manual cleaning options
Applications: Dry granular materials in mining, recycling, aggregates, food, biomass, and fertilizer production
A half magnetic drum separator features a stationary magnetic assembly inside a rotating stainless steel shell, with magnets covering only 120°-180° of the circumference (not 360°). This semi-magnetic structure concentrates magnetic force in the active separation zone, achieving 2-3x stronger field penetration than full drum designs. The outer housing fully encloses the drum for dust containment and safety.
A: This separator is suitable for dry and granular materials such as ores, aggregates, pellets, grains, and biomass. It is not designed for liquid or slurry applications.
A: Yes. We can tailor the drum size, magnet strength, conveyor width compatibility, and design features to meet the specific needs of your material and production process.
A: Some models include a self-cleaning mechanism that automatically ejects collected metal into a bin, reducing manual maintenance and allowing continuous operation.
A: Our separators use either rare earth magnets for high-intensity separation or ferrite magnets for standard applications. Rare earth magnets are more effective at capturing fine iron particles.
A: Consider factors like material type, granule size, conveyor width, pulley diameter, and whether self-cleaning is needed. Correct sizing ensures efficient separation and minimal equipment wear.
A: Yes. By removing ferrous contaminants efficiently, it prevents equipment damage, reduces downtime, and maintains continuous production flow, improving overall operational efficiency.
A: Yes. Related equipment includes plate magnetic separators, suspended magnetic separators, magnetic head pulleys, and magnet testers to provide complete solutions for ferrous contamination in dry and granular materials.
Half magnetic drum separators provide:
The enclosed housing serves multiple functions: (1) contains dust and prevents material spillage, (2) provides safety barrier around rotating drum, (3) enables negative pressure connection for dust collection systems, (4) includes inspection/maintenance access doors, and (5) directs ferrous discharge into sealed collection container.
Yes. We offer 120°, 150°, and 180° magnetic arc configurations depending on your material characteristics and separation requirements. Larger arc angles suit slower belt speeds and deeper material layers; smaller arcs work for high-speed conveyors with shallow beds.
Plate Magnetic Separator – Ideal for removing iron from granular or powdery dry materials.
Suspended Magnetic Separator – Continuous metal removal for dry material conveyors or hoppers.
Liquid Chocolate Magnetic Separator – Specialized for wet or liquid products (for reference).
Magnetic Head Pulley – Complements drum separators for dry conveyor belt systems.
The Drum Magnetic Separator for Dry and Granular Materials is a reliable solution for industrial operations requiring efficient ferrous metal removal. Its combination of high-intensity permanent magnets, customizable design, and optional self-cleaning features ensures continuous operation, protects machinery, and maintains high product quality.
Install a drum magnetic separator today to optimize your dry and granular material processing, reduce maintenance costs, and enhance operational efficiency.
| Model | Dimensions (mm) | Weight (kg) | Power (kW) | |||||
| Dia. A | B | D | W | C | H | |||
| MHD2130 | 215 | 420 | 450 | 280 | 290 | 500 | 105 | 0.25 |
| MHD2135 | 215 | 470 | 450 | 330 | 290 | 500 | 115 | 0.25 |
| MHD2140 | 215 | 520 | 450 | 380 | 290 | 500 | 125 | 0.25 |
| MHD2145 | 215 | 570 | 450 | 430 | 290 | 500 | 135 | 0.25 |
| MHD2150 | 215 | 620 | 450 | 480 | 290 | 500 | 145 | 0.25 |
| MHD2160 | 215 | 720 | 450 | 580 | 290 | 500 | 175 | 0.25 |
| MHD2170 | 215 | 820 | 450 | 680 | 290 | 500 | 195 | 0.25 |
| MHD2180 | 215 | 920 | 450 | 780 | 290 | 500 | 215 | 0.25 |
| MHD2190 | 215 | 1020 | 450 | 880 | 290 | 500 | 225 | 0.37 |
| MHD2110 | 215 | 1120 | 450 | 980 | 290 | 500 | 245 | 0.37 |
| MHD3130 | 315 | 420 | 550 | 280 | 360 | 650 | 218 | 0.25 |
| MHD3135 | 315 | 470 | 550 | 330 | 360 | 650 | 235 | 0.25 |
| MHD3140 | 315 | 520 | 550 | 380 | 360 | 650 | 252 | 0.25 |
| MHD3145 | 315 | 570 | 550 | 430 | 360 | 650 | 269 | 0.25 |
| MHD3150 | 315 | 620 | 550 | 480 | 360 | 650 | 286 | 0.25 |
| MHD3160 | 315 | 720 | 550 | 580 | 360 | 650 | 320 | 0.25 |
| MHD3170 | 315 | 820 | 550 | 680 | 360 | 650 | 354 | 0.37 |
| MHD3180 | 315 | 920 | 550 | 780 | 360 | 650 | 388 | 0.37 |
| MHD3190 | 315 | 1020 | 550 | 880 | 360 | 650 | 422 | 0.37 |
| MHD3110 | 315 | 1120 | 550 | 980 | 360 | 650 | 456 | 0.55 |
| MHD3111 | 315 | 1220 | 550 | 1080 | 360 | 650 | 490 | 0.55 |
| MHD4030 | 400 | 420 | 635 | 280 | 435 | 800 | 288 | 0.37 |
| MHD4035 | 400 | 470 | 635 | 330 | 435 | 800 | 314 | 0.37 |
| MHD4040 | 400 | 520 | 635 | 380 | 435 | 800 | 340 | 0.37 |
| MHD4045 | 400 | 570 | 635 | 430 | 435 | 800 | 366 | 0.55 |
| MHD4050 | 400 | 620 | 635 | 480 | 435 | 800 | 392 | 0.55 |
| MHD4060 | 400 | 720 | 635 | 580 | 435 | 800 | 444 | 0.55 |
| MHD4070 | 400 | 820 | 635 | 680 | 435 | 800 | 496 | 0.55 |
| MHD4080 | 400 | 920 | 635 | 780 | 435 | 800 | 548 | 0.55 |
| MHD4090 | 400 | 1020 | 635 | 880 | 435 | 800 | 600 | 0.55 |
| MHD4010 | 400 | 1120 | 635 | 980 | 435 | 800 | 652 | 0.75 |
| MHD4011 | 400 | 1220 | 635 | 1080 | 435 | 800 | 704 | 0.75 |
| MHD4012 | 400 | 1320 | 635 | 1180 | 435 | 800 | 756 | 0.75 |