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HuanTongcx is a professional magnetic materials manufacturer over 18 years.

Products
Counterbore Neodymium Magnets, High Strength Round NdFeB Magnets with Sink Hole for Screw Mounting
Counterbore neodymium magnets are professional round NdFeB magnets with pre-machined sink hole for flat-head screw installation. Designed specifically for fixed magnetic mounting, these round counterbore magnets allow direct screw locking on equipment, jigs, fixtures and metal surfaces without extra holders or welding. Adopting high-strength sintered NdFeB material and full nickel plated finish, they deliver strong concentrated magnetic force, anti-corrosion performance and long service life. Available in N35–N52 normal grades and SH/EH high-temperature grades. Widely used for industrial fixture positioning, workshop tool holding, automation equipment mounting and mechanical assembly. Custom sizes and sink hole specifications are supported.
Custom Disc Neodymium Magnets, High Strength High Temperature SH Grade Round NdFeB Magnets
Our disc neodymium magnets are high-precision sintered NdFeB round flat magnets, widely recognized as the most versatile rare earth magnetic components. Available in full magnetic grades from N35 to N52, as well as SH/EH/TH high-temperature resistant grades. All standard disc magnets adopt nickel plating finish for excellent anti-rust, wear-resistant and anti-corrosion performance. Featuring flat smooth surface, uniform magnetic distribution and strict dimensional tolerance, these round magnets deliver stable and strong vertical holding force. We provide various diameter and thickness specifications in stock, and support OEM custom size, magnetization direction and special coating. Ideal for electronic sensors, motor parts, industrial fixing, craft DIY, equipment assembly and advertising display.
External Thread Neodymium Pot Magnets, Female Male Thread Mounting Cup Magnets for Equipment Fixing & Industrial Assembly
Our external thread pot magnets, also called male threaded cup magnets, adopt high-performance sintered NdFeB magnet sealed inside solid steel pot shell with integrated outer male thread stud. The whole surface is nickel plated for rust and corrosion resistance. Unique external thread design allows quick fixed installation by matching nuts, no extra welding or bracket required. The steel pot shell concentrates magnetic flux to greatly boost holding power and prevent demagnetization. Multiple standard outer diameters and thread sizes are in stock, custom thread specification, magnet grade and coating available. Widely used for machinery positioning, sensor mounting, workshop tool holders, equipment fixtures and automated production line fixing.
Color Customizable Neodymium Magnetic Balls, Strong Rare Earth NdFeB Sphere Magnets for DIY, Decor & Industry
Our color customizable neodymium magnetic balls are high-performance sintered NdFeB spherical magnets with smooth round surface. We support full custom coating color matching on epoxy outer layer, available in black, red, blue, gold, silver, green and other customized tones. Multiple standard diameters are in stock, with nickel base anti-rust treatment under color epoxy coating. These magnetic spheres feature ultra-strong uniform magnetic force, no sharp edges, safe to handle. Widely used for jewelry making, DIY magnetic puzzles, craft ornaments, electronic assembly, fixture positioning and teaching demonstration. Custom diameter, color and batch quantity are acceptable for small samples and mass orders.
Sewable PVC Encapsulated Magnets, Single & Double Sided Soft Sew In Magnets for Bags, Garments & Clothing
Our sewable PVC encapsulated magnets are soft ferrite magnets fully sealed with flexible waterproof PVC film, divided into single side magnetic and double side magnetic two types. The smooth PVC shell is bendable, rust-proof and washable, can be directly sewn into all kinds of fabrics without scratching cloth. Single side sewable magnet only has magnetic attraction on one surface, suitable for thin clothing pocket; double sided sewable magnet has magnetic force on both faces, ideal for thick bags, curtains and sofa cushions. Multiple sizes, round & rectangular shapes in stock, custom cutting, printing and thickness supported, widely used for garment closures, backpack fasteners, curtain magnets, toy accessories and DIY textile crafts.
Rubber Coated Neodymium Magnets, Non-Scratch Soft Rubber Covered NdFeB Mount Magnets for Refrigerator Car
Our rubber coated neodymium magnets integrate high-performance sintered NdFeB magnet core and seamless one-piece soft rubber encapsulation. The thick flexible rubber outer layer completely prevents scratches, indentation and paint peeling on stainless steel, coated metal, refrigerators and finished equipment surfaces. With anti-slip, shockproof and damp-proof performance, these rubber encapsulated magnets maintain stable strong magnetism for long-term use. Disc, block, round shapes are in stock, we support custom size, thickness and color, widely used for household hanging, workshop fixing, marine fittings and industrial equipment mounting.
Ring Neodymium Magnets, Nickel Plated Hollow Round NdFeB Ring Magnets for Motor Sensor Industry
Industrial hollow ring neodymium magnets, nickel plated through-hole NdFeB magnets. High strength permanent ring magnets, stock standard sizes, custom size available for motor, sensor and mechanical fixing.
Aluminum Metal Magnetic Picture Frame, Reusable Rubber Magnet Hanging Frame For Poster Photo Art Display
Our rubber magnet metal hanging frame combines flexible soft rubber magnetic strip and premium aluminum metal border, a renter-friendly no-drill wall display solution. Featured strong self-adhesive rubber magnet, it sticks firmly on smooth walls, metal doors, fridge and cabinet surfaces without nails, drilling or wall damage. Ultra easy picture swapping without taking down the whole frame. Lightweight waterproof metal frame is scratch-resistant, fade-proof and reusable. Available in A3/A4/A5 and custom sizes, ideal for home wall decor, dorm poster display, store advertising poster, office certificate and artwork exhibition.
Custom Size Nickel Plated Neodymium Block Magnets, Strong Permanent Rectangular Magnets For Sale
Our neodymium block magnets are premium sintered NdFeB rectangular rare earth magnets, available in hot selling grade N35, N38, N42, N45, N50, N52 and high temperature SH/EH grades. Adopted standard nickel plated surface for anti-rust and anti-corrosion, featuring ultra strong magnetic pull force, stable magnetism and tight dimension tolerance. These solid square block magnets support bulk wholesale and custom cutting, widely used for motor assembly, workshop holding, DIY craft, magnetic fixture, electronic equipment and industrial separation. Multiple regular sizes in stock, fast shipping worldwide.
China Magnet SupplierCustom Epoxy Encapsulated Neodymium Magnets, Salt Spray Resistant Permanent Magnets for Motors & Electronics
Our epoxy coated neodymium magnets are sintered NdFeB rare earth magnets fully wrapped with seamless black epoxy resin encapsulation. The dense epoxy barrier completely blocks moisture, salt spray and corrosive liquid to avoid rusting, solving the oxidation defect of bare neodymium magnets. Featuring stable strong permanent magnetism, scratch-resistant outer shell and long service life, these epoxy magnets are widely applied in marine hardware, automotive motors, electronic sensors, outdoor fixtures and industrial machinery. We supply disc, block, ring, arc segment shapes and support OEM custom dimension, magnetic grade and coating color.
Custom Printed Rubber Magnet Rolls, Self-Adhesive Flexible Magnetic Sheets for Advertising & DIY Projects
Our flexible rubber magnets are made by mixing ferrite magnetic powder with soft PVC rubber binder, featuring bendable, lightweight and cuttable features. We supply plain rubber magnet sheets, magnetic rolls, self-adhesive rubber magnets and custom printed flexible magnets. The material is waterproof, weather-resistant and corrosion-free, easy to trim into any shape with scissors or die-cut. Widely used for fridge stickers, advertising signage, car magnetic signs, DIY crafts, office fixture, industrial labeling and decoration. Custom size, thickness, logo printing and adhesive backing are supported.
Custom Arc & Trapezoidal Neodymium Motor Magnets, High Performance Rare Earth Magnets for BLDC & Servo Motors
Our custom arc & trapezoidal neodymium motor magnets are precision-sintered rare earth NdFeB magnets, specifically engineered for permanent magnet motors, BLDC motors, servo motors and generators. With strict dimensional tolerance and custom arc/segment/trapezoidal shapes, they deliver consistent high magnetic strength, excellent temperature resistance and corrosion protection. These motor magnets can be tailored in grade, size, coating and magnetization pattern to match your motor design requirements, widely used in industrial automation, electric vehicles, household appliances and power generation equipment.
Magnetic Levitating Pen, Anti-Gravity Floating Ballpoint Pen for Office Desk Decoration & Gift
This magnetic levitating pen adopts professional magnetic suspension technology, enabling the pen to float steadily in the air without support. It combines practical writing function and cool anti-gravity visual effect into one. Made of premium material, the pen writes smoothly with durable ink. Equipped with a matching magnetic base, it acts as a chic desk ornament when not in use. A great novelty decoration for office, study and home, also an exclusive creative gift for festivals, business activities and daily gifting.
Custom Size Rubber Encapsulated Magnets, Shockproof Rubber Covered NdFeB for Workshop, Marine & DIY Projects
Our rubber coated neodymium magnets adopt high-performance NdFeB rare earth magnet as inner core, fully wrapped by flexible black rubber via integral encapsulation molding. The outer rubber layer effectively prevents scratching on painted metal, refrigerator, stainless steel and coated equipment surfaces, meanwhile delivering shockproof, anti-slip and corrosion-resistant performance compared with bare magnets. Featured stable strong magnetism, these rubber encapsulated magnets are widely applied in home storage, workshop fixing, equipment installation, marine accessories and DIY assembly, with disc, block, round shapes in stock and customized sizes available.
Heavy Duty Magnetic Name Tag Fasteners, 3M Adhesive Neodymium Magnets for Custom Badges
Our magnetic name badge holders feature powerful neodymium magnets and 3M adhesive backing, offering a pin-free solution for attaching custom name tags, badges and ID cards to clothing. No holes, no fabric damage, just a secure hold even on thick shirts, scrubs and uniforms. The sleek, slim profile keeps badges flat and professional, ideal for offices, events, hospitality and retail settings.
Rustproof Neodymium Magnetic Hooks, 360° Swivel Magnet Hooks for Refrigerator & Tools
Our neodymium magnetic hooks adopt high-performance NdFeB rare earth magnet core, featuring ultra-strong magnetic pull force. Drill-free and easy to reposition, these removable magnet hooks firmly attach to any ferrous metal surface. Durable anti-rust metal structure suits home, garage, workshop, kitchen and outdoor scenarios, ideal for hanging tools, keys, utensils and small items to save space.
Premium Pot Magnets – High Pull Force Cup Magnets for Industrial & Commercial Use
Heavy-duty pot magnets (cup-shaped magnetic assemblies) with steel casing and neodymium/ferrite core. Features concentrated magnetic flux, ultra-strong pull force, and countersunk mounting hole. Perfect for industrial holding, door stops, fixtures, and DIY projects. RoHS compliant, custom sizes available.
3M Adhesive Backed Neodymium Magnets Multi-Type Self-Stick Strong NdFeB Mounting Magnets
Our adhesive backed neodymium magnets are high strength sintered NdFeB magnets pre-attached with different types of self-adhesive tapes. Mainly equipped with original strong 3M double sided tape, high resilience foam adhesive, high temperature resistant acrylic glue and general strong glue options.
Peel off the release paper and directly paste on smooth metal, plastic, wood, glass, wall and other flat surfaces, no drilling, no screws, no extra glue needed. Available in block, disc, ring, strip, countersunk hole multiple shapes, complete magnetic grades from N35 to N52. Widely used for daily storage, product assembly, craft making, office arrangement, electronic fixed positioning and light industrial fixed installation. Support custom adhesive type, glue thickness and size specification.
Epoxy Coated Neodymium Magnets | Waterproof Anti-Corrosion Epoxy NdFeB Magnets
Epoxy coated neodymium magnet is one of the most popular surface treated NdFeB permanent magnets. We adopt high-density black epoxy resin full spraying coating process on the surface of sintered neodymium magnet, completely wrap all magnet surfaces, edges and corners without dead angle.
Compared with zinc plating and nickel plating, epoxy coating has better waterproof performance, stronger anti-rust, anti-oxidation and acid-base corrosion resistance. It is low cost, practical and durable, not easy to peel off and fade.
Available in block, disc, ring, cylinder, countersunk hole and special shapes, complete magnet grades from N35 to N52. Widely used in electronic products, gift crafts, hardware accessories, furniture adsorption, outdoor equipment, bathroom supplies and daily fixed adsorption fields. Support OEM size, thickness, hole position and batch wholesale production.
Neodymium Arc Segment Motor Magnets | Trapezoidal NdFeB Magnetic Tiles For Motor Rotor Stator
Our neodymium arc segment magnets and trapezoidal magnetic tiles are professional shaped sintered NdFeB magnets specially developed for various permanent magnet motors.
Adopting high-grade neodymium iron boron raw material, finished into inner arc, outer arc and flat trapezoidal shapes through precise profiling and wire cutting.
Featured with super strong magnetism, stable magnetic field distribution and excellent high temperature resistance, these motor magnetic tiles effectively improve motor power, reduce operation noise and extend service life. Widely used in brushless DC motors, servo motors, new energy vehicle auxiliary motors, fan motors, generators and intelligent driving motors. We support sample customization, mold opening production and mass bulk supply.
HuanTongcx is a custom magnet supplier which providing neodymium magnet, ferrite magnet, samarium cobalt magnet for various industries.
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No. 73-75, Dalang Section, Guan Zhang Road, Dalang Town, Dongguan City, Guangdong Province, China

Contact person: Mr.Zeng
Tel: +86-13925718949
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