Custom Square Magnetic Grids

Structure and Materials

Every Custom Square Magnetic Grid engineered by MagnetGlobal utilizes premium raw materials to withstand abrasive industrial environments:

• Heavy-Duty Frame Options:
  • Enclosed Square Outer Frame: Features a fully enclosed 4-side perimeter frame crafted from heavy-gauge stainless steel. This design ensures structural rigidity, flush mounting against chute walls, and prevents material leakage or bypass around the edges.
  • Open Baffle Plate Frame: Utilizes minimal side baffle plates to hold the magnetic rods, offering a lightweight, compact footprint that optimizes material throughput and simplifies installation in tight spaces.
• Corrosion-Resistant Casing: Constructed from seamlessly welded SUS304 or SUS316L stainless steel, available in fine sandblasted matte finishes or high-gloss mirror polishing (Ra < 0.4 µm) to comply with food and pharmaceutical hygiene standards.
• High-Grade Magnetic Core: High-performance rare-earth Neodymium (NdFeB) magnetic blocks paired with flux plates maximize localized surface Gauss strength up to 12,000+ Gauss.

Working Principle

Custom Square Magnetic Grids function by creating an optimized multi-gap magnetic barrier across the entire cross-section of a square flow path. As dry powders, bulk granules, or aggregates fall through the grid framework by gravity, any present ferromagnetic impurities and fine mechanical wear are immediately deflected toward the high-flux rods. The intense magnetic forces pull the contaminants away from the active product stream and lock them securely onto the underside of the stainless steel bars. This physical trapping mechanism ensures that clean materials pass through unobstructed while hazardous tramp iron is reliably isolated.

Features and Technical Specifications

A key advantage of selecting our Custom Square Magnetic Grids is the flexibility in matching exact spatial and technical specifications. The surface magnetic field can be calibrated from a standard 6,000 Gauss for general tramp iron protection up to an ultra-high 12,000 Gauss for fine micron-sized mechanical fragments. Frame width, rod spacing, total bar count, and mounting configurations are fully customizable based on material flow velocity and particle size. Standard models operate up to 80°C, while high-temperature configurations equipped with SmCo or heat-resistant NdFeB magnets can function reliably up to 350°C.

Technical Parameters (Suggested Matrix)

Key Advantages of MagnetGlobal Design

• Flexible Framing Configurations: Choose between robust enclosed outer frames for complete wall-to-wall coverage or open baffle frames for maximum flow efficiency and lightweight integration.
• Zero Operating Expense: As a fully passive permanent magnetic system, these grids require no electrical power, control wiring, or consumable filter elements, delivering 24/7 protection with zero energy costs.
• Long-Term Durability: Sealed, continuous seam-welded stainless steel tubing protects internal Neodymium magnets from moisture, oxidation, and mechanical impact.
• Smooth Material Flow: Engineered rod spacing and smooth surface finishes minimize product resistance, preventing material bridging, clogging, or choke points in square hoppers and chutes.

Target Applications and Engineering Support

These industrial-grade Custom Square Magnetic Grids are widely deployed across global processing facilities to protect critical equipment such as extruders, shredders, pulverizers, and millers:

• Plastics & Rubber Recycling: Direct placement in square hopper inlets on injection molding and extruding machinery.
• Chemical & Powder Processing: Separating iron contamination in pigment, resin, and chemical compounding lines.
• Food & Grain Milling: Eliminating tramp iron from flour, animal feed, sugar, spices, and bulk grains.

At MagnetGlobal, we provide rapid prototyping, OEM/ODM customization, and site-blueprint matching. Whether you require tailored outer frame dimensions, extra mounting tabs, deflector angles, or easy-clean extractor sleeves, our engineering team will build the ideal square magnetic separator for your line.