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Permanent cross belt magnets (or overhead belt magnets) are self-cleaning magnetic separators used to remove ferrous metals from materials on conveyor belts. Powered by permanent magnets instead of electromagnets, they require no electricity and ensure continuous, maintenance-free operation.Featuring deep magnetic penetration, durable structure, and optional ferrite or rare-earth magnets, they deliver stable performance with less than 5% magnetic loss in 5 years—making them a reliable, energy-efficient solution for continuous iron removal.
Permanent cross belt magnets are widely used in:
Recycling and solid waste treatment plants – remove nails, steel wires, and other ferrous scraps
Mining and aggregate plants – protect crushers and grinders from tramp iron
Cement and construction material processing – ensure product purity and reduce equipment wear
Wood and biomass industries – eliminate metal contamination before grinding or pelletizing
They play a crucial role in improving product quality, extending equipment life, and ensuring safer production processes.
Mag Spring® cross belt magnets and overhead belt magnets are premium permanent magnetic separators designed to protect industrial equipment and ensure product purity by efficiently removing ferrous contaminants from conveyor lines. As a leading conveyor belt magnetic separator, these magnets offer energy-free, maintenance-free operation, making them ideal for continuous industrial production.
Our permanent self-cleaning suspended magnets are widely used across industries including mining, cement, recycling, wood processing, construction, and sugar manufacturing. By capturing tramp iron effectively, they prevent equipment damage, reduce downtime, and improve overall operational efficiency.
Selecting a high-quality cross belt magnet or overhead belt magnet is critical for protecting machinery and ensuring consistent product quality. Mag Spring® designs offer:
Wide Range of Models: Suitable for conveyor widths from 500 mm to 1600 mm.
Advanced Magnetic Design: Deep magnetic field penetration ensures effective ferrous particle removal.
Robust Frame Structure: Rigid integrated steel support ensures stability under harsh conditions.
High-Quality Bearings: Long-term reliability for continuous-duty operation.
Simple Belt Adjustment: Easy tension and tracking control.
Long-Term Magnetic Stability: Magnetic strength reduction less than 5% over 8 years.
Mag Spring® overhead belt magnets are versatile solutions for various industrial applications:
Mining & Mineral Processing: Protect crushers and mills from tramp iron.
Cement & Building Materials: Remove ferrous contaminants from limestone or clinker.
Recycling Plants: Separate iron from plastics, glass, or solid waste.
Wood & Biomass Processing: Capture nails and metal debris from shredded wood.
Sugar & Food Industry: Maintain hygiene and purity during production.
Chemical & Pharmaceutical Lines: Ensure contamination-free powder materials.
The permanent cross belt magnet is suspended above the conveyor. When ferrous materials pass underneath, they are attracted to the strong magnetic field and automatically carried away by a self-cleaning belt, which continuously discharges them to a safe collection point.
This ensures uninterrupted material flow and protects crushers, shredders, and processing equipment from metal damage.
Full range of models suitable for belt widths from 500 mm to 1600 mm
Advanced magnetic circuit for deep field penetration and high separation efficiency
Rugged structure with integrated frame for stability and easy installation
Adjustable belt tracking and durable bearings for long-term reliable performance
Magnetic strength loss ≤5% within 8 years for lasting power
Simple, low-maintenance operation — no electricity required
Equipment Protection: Prevents damage to crushers, mills, and conveyors.
Product Purity: Removes ferrous particles effectively.
Energy Saving: Permanent design requires no electrical power.
Low Maintenance: Automatic discharge belt minimizes manual cleaning.
Easy Installation: Available for both across-conveyor and head-mounted configurations.
Belt drive: Electric motor or hydraulic drive.
Magnet type: Standard ferrite or high-strength rare-earth.
Protective cover: Stainless steel housing for food or chemical use.
Discharge belt: Stainless armored design for abrasive materials.
Adjustable settings: Belt tension and tracking control.
Cross Mounted: Installed horizontally over the conveyor belt.
Head Pulley Mounted: Installed at the conveyor head for compact systems.
These options allow easy integration into existing material handling lines.
Q1: How do I choose the right model?
A1: Model selection depends on conveyor width, belt speed, and material thickness. Contact our engineers for tailored guidance.
Q2: What’s the difference between ferrite and rare-earth types?
A2: Ferrite models are cost-effective; rare-earth models provide higher magnetic intensity for dense materials.
Q3: Can it work with high-temperature materials?
A3: Standard type supports ≤80°C; special designs are available for higher temperatures.
Q4: How long does the magnetic force last?
A4: Permanent magnets lose less than 5% strength over 8 years of normal use.
Suspended Magnets – For free-fall material separation.
Magnetic Pulleys – For conveyor end iron removal.
Plate Magnets – For hopper or chute applications.
Explore more at Mag Spring® to find your ideal conveyor belt magnetic separator solution.
For professional technical guidance and customized solutions:
📧 Email: act@mag-spring.com
🌐 Website: www.magnetact.com
Enhance your process efficiency and protect valuable equipment with Mag Spring® permanent cross belt magnets — the reliable overhead belt magnets for industrial iron separation.
Technical Specifications
Permanent Self-Cleaning Suspended Magnet – SWPM-L Series
| Model | Applicable Conveyor Width | Applicable Conveyor Speed | Material Burden Depth | Rated Suspended Height | Motor Power |
| SWPM-L-50 | 500 mm | ≤4.5m/s | ≤100 | 180 mm | 1.5 kw |
| SWPM-L-65 | 650 mm | ≤4.5m/s | ≤150 | 200 mm | 1.5 kw |
| SWPM-L-80 | 800 mm | ≤4.5m/s | ≤200 | 250 mm | 2.2 kw |
| SWPM-L-100 | 1000 mm | ≤4.5m/s | ≤250 | 300 mm | 3.0 kw |
| SWPM-L-120 | 1200 mm | ≤4.5m/s | ≤300 | 350 mm | 4.0 kw |
| SWPM-L-140 | 1400 mm | ≤4.5m/s | ≤350 | 350/400 mm | 4.0 kw |
| SWPM-L-160 | 1600 mm | ≤4.5m/s | ≤400 | 350/400/450 mm | 5.5 kw |
Optional:
T series applicable for high material thickness and high-density applications.
T1 – 700 Gauss | T2 – 900 Gauss
These specifications ensure flexible integration with different conveyor systems, from compact material lines to large-scale bulk handling systems.
T1 – 700 Gauss | T2 – 900 Gauss
These specifications ensure flexible integration with different conveyor systems, from compact material lines to large-scale bulk handling systems.
