Magnetic lock can be opened and closed
Contact Us Now
FAIZEAL presents the Custom N52 NdFeB Permanent Magnetic Switch — a precision-engineered mechanical magnetic ON/OFF switch that delivers instant, repeatable magnetic force control through a simple 90-degree handle rotation. Built around N52 grade sintered neodymium-iron-boron (NdFeB) magnets — the highest commercially available permanent magnet grade — this rotating magnetic switch generates industrial-strength holding power in the “ON” position and complete magnetic release in the “OFF” position, all without any electrical power input, electric pulse, or external controller.
Whether your application calls for a magnetic chuck switch for precision CNC workholding, a magnetic clamping device for welding positioners and fabrication jigs, a magnetic gripper for robotic pick-and-place end-effectors, or a custom large-format magnetic workholding switch for heavy steel handling, FAIZEAL’s mechanical magnetic switch delivers the perfect combination of extreme holding force, single-hand operation, and zero-power fail-safe operation.
The standard unit shown here starts at 100 mm with no upper size limit — every dimension, every mounting interface, every force rating is custom-engineered to your application. If you can draw it, FAIZEAL can build it.
N52 NdFeB Magnet Core — Built with the highest-grade commercially available sintered neodymium magnet, delivering up to 14,800 Gauss surface flux density and a maximum energy product (BH)max of 52 MGOe. N52 is the strongest standard NdFeB grade on the market, providing holding forces that exceed N42 by approximately 20% in the same volume.
Mechanical ON/OFF Operation — Rotate the T-handle 90 degrees to toggle between full magnetic holding force and zero external field. No electricity, no batteries, no driver electronics, no heating, no electromagnetic interference. Pure mechanical control.
100 mm Minimum, No Upper Size Limit — Standard units start at 100 mm and scale to any dimension required by your application. FAIZEAL routinely produces custom magnetic switches at 150 mm, 200 mm, 300 mm, 500 mm, 800 mm, 1000 mm, and beyond. No project is too large.
Maintenance-Free Design — The mechanical rotating mechanism has no wear parts, no electronics, and no consumables. Rated for over 100,000 ON/OFF cycles with no measurable performance degradation.
Industrial-Grade Construction — Housing machined from 304 or 316 stainless steel for corrosion resistance, or 6061-T6 aluminum for lightweight applications. Surface treatment options include nickel plating, zinc plating, electrophoretic coating, and powder coating.
Fail-Safe Holding — Unlike electromagnets that lose holding force on power failure, the permanent magnetic switch maintains full holding force indefinitely with no power input. The magnetic force is only released when the operator deliberately rotates the handle to the OFF position.
The FAIZEAL permanent magnetic switch uses the principle of magnetic flux steering through controlled internal magnet rotation. Inside the arc-shaped housing, two or more N52 NdFeB magnets are mounted on a central rotating shaft connected to the externally accessible T-handle.
In the ON position (T-handle aligned with the arc base, parallel to the contact surface), the internal magnets’ flux is directed through precision-machined pole pieces at the bottom of the arc housing. This creates a strong, concentrated external magnetic field that firmly grips any ferrous workpiece placed in contact with the bottom surface.
In the OFF position (T-handle rotated 90 degrees, perpendicular to the contact surface), the internal magnets form a closed flux loop with the arc-shaped steel back-iron inside the housing. The external magnetic field virtually disappears, and the workpiece is released instantly.
This mechanical magnetic switch mechanism offers distinct advantages over both electromagnets and electro-permanent magnets. Compared with electromagnets, it requires zero standby power and generates no heat. Compared with electro-permanent magnets, it requires no capacitor discharge pulse, no electronic controller, and no electrical connection — simplifying installation, reducing cost, and eliminating electrical failure modes.
The mechanism is fully reversible, fully repeatable, and fully serviceable. The T-handle position provides a clear visual indication of the switch state, eliminating the ambiguity of magnetic-only or LED-indicator systems.
The FAIZEAL N52 NdFeB magnetic switch is offered with the following standard and customizable specifications.
Magnet material is N52 sintered neodymium-iron-boron (NdFeB) as standard, with optional grades including N35, N38, N40, N42, N45, N48, N50, N54, and high-temperature variants N42SH, N40UH, N38EH, and N33AH for elevated temperature applications. Maximum energy product ranges from 33 MGOe (N35) to 55 MGOe (N54), with N52 delivering 52 MGOe as standard. Remanence Br for N52 is 14.2 to 14.8 kG (1.42 to 1.48 Tesla). Intrinsic coercive force HcJ is 12 kOe minimum for N52. Curie temperature is 310 degrees Celsius, with continuous operating temperature rated at 80 degrees Celsius standard and 120 to 150 degrees Celsius available with SH/UH/EH grade selection.
Housing material options include 304 stainless steel for general industrial use, 316 stainless steel for marine and chemical environments, 321 stainless steel for high-temperature applications, 6061-T6 aluminum for lightweight designs, and 7075 aluminum for high-strength lightweight designs. Custom alloys are available on request.
Standard outer dimensions start at 100 mm and scale to any size with no upper limit. Common custom sizes are 150 mm, 200 mm, 250 mm, 300 mm, 400 mm, 500 mm, 600 mm, 800 mm, and 1000 mm. Mounting interfaces are custom per drawing, including threaded holes, T-slots, weldments, flanges, and integrated actuator couplings.
Operating temperature range is -20 to +80 degrees Celsius standard, with -40 to +120 degrees Celsius available. ON/OFF cycle life exceeds 100,000 cycles standard, with verified performance beyond 1,000,000 cycles achievable for high-cycle applications. Holding force scales with the contact area, magnet volume, and air gap; a 100 mm unit typically delivers 500 to 1500 N of holding force on a clean mild steel surface, scaling proportionally with size.
The FAIZEAL mechanical magnetic switch serves a wide range of industrial and automation applications.
Magnetic Workholding for CNC Machining — Replace mechanical clamps and vises with rapid-deploy magnetic fixtures for CNC milling, surface grinding, EDM, and machining centers. Setup time reduction of 70% to 90% is typical, and full 5-axis access is preserved because there are no mechanical clamps in the tool path.
Welding Positioners and Rotational Fixtures — Hold large steel fabrications, weldments, and pipe sections during welding, cutting, and assembly. The instant ON/OFF capability of the magnetic switch dramatically reduces operator intervention and cycle time. Custom arc-shaped geometries are available to match cylindrical or curved workpieces.
Robotic End-of-Arm Tooling — Integrate the magnetic switch as a robotic magnetic gripper for pick-and-place robots handling ferrous components in automotive body lines, appliance manufacturing, and metal fabrication. The 90-degree mechanical actuation is compatible with pneumatic, electric, and manual robot tool changers.
Magnetic Lifting and Material Handling — Build custom magnetic lifters for steel plate, pipe, structural steel, and billet handling. The mechanical OFF position enables instant load release without auxiliary release mechanisms, cables, or springs.
Quick-Change Production Tooling — Use the permanent magnetic switch as a rapid-change interface between machine tool tables and workholding pallets. Changeover time drops from minutes to seconds, supporting high-mix low-volume production.
Industrial Holding and Assembly — Hold sheet metal, steel brackets, and sub-assemblies during drilling, tapping, riveting, and inspection operations. The single-hand T-handle operation improves ergonomics and reduces operator fatigue.
Foundry and Steel Service Centers — Handle red-hot or cold steel billets, ingots, and slabs. High-temperature variants of the N52 NdFeB magnetic switch with SH or UH grade magnets handle continuous exposure to 120 to 180 degrees Celsius.
Specialty and Emerging Applications — Theatrical rigging anchors, marine salvage attachment points, steel recycling sorting fixtures, decommissioning tooling, military field equipment, and other custom applications. FAIZEAL welcomes novel requirements and provides full engineering support for new applications.
FAIZEAL specializes in custom permanent magnetic switch and custom magnetic chuck solutions for OEM and ODM customers worldwide. Our engineering team works directly from your drawing, application requirement, or concept sketch to deliver a fully optimized magnetic switch in as few as 5 to 10 business days for prototype.
Size Customization — From compact 100 mm units to large-format magnetic switches exceeding 1 meter, FAIZEAL scales manufacturing to your application with no upper size limit. We have delivered custom switches up to 1.5 meters for steel mill applications. Common custom sizes include 150 mm, 200 mm, 300 mm, 500 mm, 800 mm, and 1000 mm, and every size in between.
Force Customization — Holding force tuned to your workpiece mass, surface roughness, and required safety factor. Single-pole, multi-pole, distributed-pole, and Halbach-augmented pole configurations are available. Holding force calculations and FEA simulation are provided as standard DFM deliverables.
Geometry Customization — Flat rectangular, round disc, arc-shaped, cylindrical, semi-cylindrical, and fully custom housing geometries. The arc-shaped housing shown in the image is one example of custom geometry matched to a specific workpiece profile. We can match existing mounting patterns or design new ones from scratch.
Magnet Grade Selection — Standard N52 NdFeB for maximum holding force. Optional N54 for extreme performance, N48 or N45 for cost optimization, or high-temperature grades N42SH, N40UH, N38EH for elevated temperature applications. Mixed-grade magnet arrays are also possible for cost-engineered solutions.
Housing Material Selection — 304 stainless steel for general industrial use. 316 stainless steel for marine, food-grade, and chemical environments. 321 stainless steel for high-temperature service above 200 degrees Celsius. 6061-T6 aluminum for weight-sensitive applications. 7075 aluminum for high-strength lightweight designs. Custom alloys including titanium, Inconel, and Hastelloy are available for extreme environments.
Surface Treatment Options — Electroless nickel plating (Ni), zinc plating (Zn), electrophoretic coating (E-coating), epoxy powder coating, PTFE coating for non-stick applications, passivation for stainless steel corrosion resistance, and custom painting per Pantone or RAL specification.
Interface Customization — Mechanical mounting holes per ISO or ANSI standards, threaded inserts for repeated assembly, T-slot rails for sliding fixtures, weld-on tabs for permanent mounting, quick-disconnect couplings for rapid changeover, and integrated pneumatic or electric actuator interfaces for automated operation.
Application Engineering — Every custom magnetic switch project includes DFM review, magnetic circuit simulation (FEA in Ansys Maxwell or JMAG), holding force calculation, thermal analysis, lifetime estimation, and prototype testing. FAIZEAL’s engineering team acts as an extension of your design team, providing complete magnetic design and manufacturing support from concept through mass production.
10 Years of Magnetic Assembly Expertise — Since 2017, FAIZEAL has been engineering custom magnetic components for customers worldwide, with deep experience in N52 NdFeB magnetic switches, Halbach rotor arrays, magnetic couplings, magnetic chucks, magnetic workholding systems, and specialty magnetic assemblies. Our team understands the practical engineering realities of magnetic design — not just the textbook theory.
In-House R&D and Manufacturing — From magnet grade selection to FEA simulation to housing machining to magnet assembly to final testing, every step is controlled in-house at our Ningbo facility. This vertical integration ensures consistent quality, fast iteration on custom designs, and complete traceability from raw material to finished product.
Custom-First Philosophy — Unlike catalog-only magnetic suppliers, FAIZEAL treats every inquiry as a custom engineering project. We do not push standard catalog products. We listen to your application, design the optimal magnetic solution, manufacture it to specification, and support you through integration. No project is too small, no size too large, no specification too demanding.
Prototype to Mass Production — Prototype lead time is 5 to 10 business days from drawing approval. Mass production MOQ is 50 pieces with 20 to 25 business day lead time. For established programs, we maintain safety stock and kanban delivery to support JIT production.
Global Shipping and Support — FAIZEAL exports custom magnetic switches to North America, Europe, Southeast Asia, the Middle East, and Oceania. Full English and Chinese technical documentation, engineering support, and on-site installation assistance are available. Trade terms include EXW, FOB, CIF, and DDP.
Quality Systems — Every magnetic switch is dimensionally inspected using CMM, magnetically tested using Helmholtz coil flux mapping, and dynamically tested for ON/OFF cycle life before shipment. Material certificates, dimensional reports, and magnetic performance reports accompany every batch.
Primary keywords: magnetic switch, permanent magnetic switch, N52 NdFeB magnetic switch, N52 magnetic switch, custom magnetic switch, mechanical magnetic switch, rotating magnetic switch, magnetic on off switch, magnetic chuck switch, magnetic workholding switch.
Secondary keywords: magnetic chuck, magnetic workholding, magnetic gripper, magnetic clamping device, magnetic holding device, magnetic fixture switch, magnetic toggle switch, magnetic quick release, N52 neodymium switch, NdFeB magnetic switch, sintered NdFeB switch, magnetic flux switch, mechanical magnetic chuck, N52 grade magnet switch.
Long-tail keywords: custom N52 NdFeB permanent magnetic switch, OEM magnetic switch, ODM magnetic switch, large magnetic switch, industrial magnetic switch, magnetic switch manufacturer, magnetic switch supplier, N52 neodymium magnetic workholding, custom magnetic chuck supplier, magnetic switch for CNC workholding, magnetic switch for welding positioner, mechanical magnetic ON/OFF switch, permanent magnetic workholding switch, N52 magnetic chuck manufacturer, custom size magnetic switch, magnetic switch no upper size limit, 100 mm magnetic switch.
Application keywords: welding positioner magnetic chuck, robotic magnetic gripper, magnetic lifting device, steel plate magnetic holder, CNC magnetic workholding, magnetic jig and fixture, magnetic clamping for fabrication, magnetic holding for assembly, magnetic quick change pallet, magnetic switch for automation.
Material and grade keywords: N52 neodymium magnet, sintered NdFeB magnet, rare earth magnetic switch, high energy permanent magnet switch, N52 grade sintered magnet, N52SH magnetic switch, N40UH magnetic switch, high coercivity magnetic switch.
Q1: What is a permanent magnetic switch and how does it differ from an electromagnet? A permanent magnetic switch uses high-grade NdFeB magnets and mechanical rotation to control the direction of magnetic flux, providing instant ON/OFF holding without any electrical power. An electromagnet requires continuous current to generate magnetic force and loses all holding force on power failure. The permanent magnetic switch is fail-safe and energy-free.
Q2: Can the N52 NdFeB magnetic switch be custom-sized? Yes. Standard units start at 100 mm and FAIZEAL scales to any dimension with no upper size limit. We have produced custom magnetic switches up to 1.5 meters for steel mill applications. Every dimension including housing geometry, pole area, mounting pattern, and T-handle position is fully customizable per your drawing.
Q3: What is the maximum holding force of a 100 mm N52 magnetic switch? Holding force depends on the contact area, air gap, and surface condition. A 100 mm N52 NdFeB magnetic switch typically delivers 500 to 1500 newtons of holding force on a clean mild steel surface with zero air gap. Larger sizes scale proportionally. FAIZEAL provides detailed holding force calculations as part of the DFM package.
Q4: Can the N52 magnetic switch be used in high-temperature environments? Standard N52 grade is rated to 80 degrees Celsius continuous. For higher temperatures, FAIZEAL offers N42SH (150 degrees Celsius), N40UH (180 degrees Celsius), and N38EH (200 degrees Celsius) magnet grades. High-temperature variants of the magnetic switch are used in foundry, welding, and steel mill applications.
Q5: What is the ON/OFF cycle life of the mechanical magnetic switch? The standard rating is 100,000 cycles minimum with no measurable performance loss. For high-cycle applications, FAIZEAL offers premium variants verified beyond 1,000,000 cycles. The mechanical design has no electronic components, so cycle life is determined by mechanical wear of the bearing surfaces and is highly predictable.
Q6: Can the magnetic switch be used as a robotic magnetic gripper? Yes. The 90-degree mechanical actuation is compatible with pneumatic, electric, and manual robot tool changers. Many customers integrate the N52 magnetic switch as an end-effector on pick-and-place robots for ferrous component handling. Custom mounting flanges and robot-side adapter plates are provided per the robot specification.
Q7: Does FAIZEAL provide custom branding or OEM/ODM service? Yes. FAIZEAL supports full OEM and ODM programs including custom branding, custom packaging, custom documentation, and custom labeling. We routinely ship under customer brand names and part numbers for distribution partners and system integrators.
Q8: What is the lead time for a custom N52 NdFeB magnetic switch? Prototype lead time is 5 to 10 business days from drawing approval. Mass production lead time is 20 to 25 business days. For urgent requirements, expedited prototype service is available. Safety stock programs for recurring orders can reduce delivery to 1 to 2 weeks.
Send your drawing, sample, or application description to FAIZEAL and receive a complete engineering package within 5 business days, including DFM review, magnetic circuit FEA simulation, holding force estimation, custom prototype quotation, and mass production timeline.
Whether you need a single custom prototype for evaluation or 10,000 pieces per year for series production, FAIZEAL has the engineering depth, manufacturing capacity, and quality systems to deliver.
No project too large. No specification too demanding. No magnet problem too hard.
Contact FAIZEAL today for custom N52 NdFeB permanent magnetic switches, magnetic chucks, magnetic grippers, magnetic workholding, and specialty magnetic assemblies. Engineering support available in English and Chinese. Global shipping.
FAIZEAL — Custom Magnetic Assemblies, Engineered to Your Specification.
