Easy-Clean Pull-Out Magnetic Grid

Working Principle

Material flows by gravity through the open frame and across the parallel magnetic rods mounted inside the pull-out tray. Ferrous and weakly magnetic contaminants are drawn out of the flow and held to the surface of each rod’s outer stainless steel tube as the product passes over it. Each magnetic core is sealed inside its own stationary tube sleeve; when the operator grips the integrated handle and withdraws the tray, the cores are drawn out of their sleeves in the same single motion. As each core clears its sleeve, that section of tube loses magnetic attraction and the captured debris drops away cleanly on its own — no scraping or wiping required. Because the frame stays mounted in the chute throughout the cleaning cycle, there’s no need to disturb surrounding ductwork or re-align a housing after each cleaning pass, and the full cycle is tested at under 15 seconds.

Structure and Materials

The outer frame and rod tray are both fabricated from stainless steel, with the rod tray built to slide on guided rails inside the frame for consistent alignment on reinsertion. Magnetic rods are mounted in parallel at fixed spacing across one or two rows depending on model size, with each rod housed in a sealed stainless steel tube around a high-flux NdFeB permanent magnet core, available in N35 and N45 grades and quality-inspected prior to shipment. Surface finish is Ra 0.6 µm. The design is built in line with ATEX dust-explosion-zone principles for use around combustible powders (formal ATEX certification available on request, not currently held as a standing certificate). Standard construction uses SUS304 or SUS316L stainless steel depending on chemical exposure and sanitary requirements.

Features and Specifications

• Surface Gauss rating: 6,000–12,000 Gauss, measured on the tube surface in contact with product
• Magnet grade: N35 and N45 NdFeB, quality-inspected prior to shipment
• Cleaning mechanism: Single-motion full tray withdrawal — magnetic cores clear their sleeves and release captured debris automatically, no latch, interlock, or tool required
• Cleaning time: Tested at under 15 seconds per full cleaning cycle
• Frame and rod material: SUS304 or SUS316L stainless steel, surface finished to Ra 0.6 µm
• Rod configuration: Single or dual-row layouts available depending on frame size and contamination load
• Operating temperature: -20°C to +90°C standard range; high-temperature configurations available on request
• Installation: Drop-in fit for existing chute, hopper, or duct openings without welding or structural modification; suitable for vertical or slightly angled process lines
• Explosion-risk environments: Designed in line with ATEX dust-zone principles; certified versions available on request

Technical Parameters

Optional Configurations

• Pharmaceutical-grade specification
• Larger custom sizes beyond the standard EC series
• Safety relay switch (line interlock confirming full tray reinsertion)
• ATEX-certified version
• Higher-temperature configurations beyond the standard range

Key Advantages

1. Faster Cleaning, Fewer Steps — A single continuous pull removes the entire rod tray in one motion — no separate latch to release or interlock to disengage — with a full cleaning cycle tested at under 15 seconds, cutting a step out of the routine compared to two-stage pull-out designs.
2. Consistent Realignment — Guided rail tracks keep the rod tray aligned with the frame on every reinsertion, so magnetic coverage across the flow path stays consistent cleaning after cleaning.
3. Zero Running Cost — As a fully passive permanent-magnet system, the unit requires no electricity and has no consumable parts, with minimal field decay over years of continuous service.
4. Drop-In Retrofit — As a drawer magnet design, the fixed frame installs into existing chute, hopper, or duct openings without welding or structural changes, making it straightforward to add to lines that didn’t originally include magnetic separation.
5. Suited to Combustible Powder Environments — Built in line with ATEX dust-zone design principles, the unit is a practical fit for facilities handling fine organic or combustible powders where reducing ignition risk from tramp metal matters.
6. Supports Quality Audit Requirements — Consistent, documented ferrous removal down to fine, micron-sized contamination helps plants demonstrate compliance during quality and safety audits, without relying on manual inspection alone.

Applications & Industrial Value

Easy-Clean Pull-Out Magnetic Grids are widely used across food processing, chemical manufacturing, plastics and resin handling, and pharmaceutical production, wherever dry powders or granulates need continuous ferrous contamination control at a hopper, chute, or duct inlet. As a drawer magnet retrofit, it’s a common upgrade for lines that need better contamination control without a full equipment changeover. By removing tramp metal before it reaches downstream mixers, extruders, or packaging equipment, the unit protects processing assets from mechanical wear while helping maintain consistent product purity — with a cleaning routine fast enough for lines that require frequent servicing without extended downtime.