JC-Magnetics

12mm x 5mm Hole 4mm N52 Strong Rare Earth Neodymium Magnet Rings 12x5mm H4mm

11/08/2026

12mm x 5mm Hole 4mm N52 Super Strong Rare Earth Magnet Rings Specification:Dimensions: 12mm x 5mm thick Diameter of bore: 4mm Tolerances: ±0.1mm x ±0.1mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends optional N or S) Weight: 3.8 g (0.13oz) Max Operating Temp: 176ºF (80ºC) Pull Force: Approx. 9 lb (4kg) Material Features: Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets , please place in somewhere children can’t reach place.

12mm x 1mm 1/2″x 1/32″ N52 Strong Disc Rare Earth Neodymium thin Magnet 12x1mm

11/08/2026

12mm x 1mm N52 – approx. 1/2″x1/32″ Strong Round Magnets Rare Earth thin Magnets Specification:Dimensions: 12mm x 1mm thick (approx. 1/2″ x 1/32″ thick) Tolerances: ±0.2mm x ±0.2mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Pull Force: Approx. 1.3 lb (590 g) Material Features: Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place. Shipping: Free USPS Standard shipping to all US States. You can select USPS PriorityMail option for expedited orders. Payment: We accept Paypal® only.

6mm x 2mm N52 Strong Round Disc Rare Earth Neodymium Magnet 6x2mm

10/08/2026

6mm x 2mm N52 Strong Round Magnets Rare Earth Magnets Specification:Dimensions: 6mm x 2mm thick Tolerances: ±0.1mm x ±0.1mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Pull Force: Approx. 1.5 lb Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

4mm x 2mm 5/32″x5/64″ N52 Rare Earth Neodymium Small Magnet Discs 4x2mm

10/08/2026

4mm x 2mm – approx. 5/32″x5/64″ Strong Round Disc Rare Earth Magnets Specification:Dimensions: 4mm x 2mm thick (approx. 5/32″x5/64″) Tolerances: ±0.2mm x ±0.2mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

Rings Countersunk N52 Super Strong Rare Earth Neodymium Magnet North South Poles

10/08/2026

N52 Super Strong Neodymium Magnets Rings and Countersunk Rings General Specifications:Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends)Max Operating Temp: 176ºF (80ºC) Material Features: Neodymium Magnets are made of a brittle material (NDFEB). These magnets are not as strong as steel, they are more like a brittle ceramic. If you let two magnets slam together, they can crack and break, this is true for magnets large and small. Countersunk Magnets : Ring 5x3mm Hole 2mm N52 (countersunk to N or S Pole):Diameter 5mm X 3mm thick Hole 2mm (approx. 3/16″ x 1/8″ Hole 5/64″) | Pull Force: Approx. 0.94 lb Ring 6x3mm Hole 2mm N52 (countersunk to N or S Pole):Diameter 6mm X 3mm thick Hole 2mm (approx. 1/4″ x 1/8″ Hole 5/64″) | Pull Force: Approx. 1.36 lb Ring 7x4mm Hole 2mm N52 (countersunk to N or S Pole):Diameter 7mm X 4mm thick Hole 2mm (approx. Dia 9/32in x 5/32in hole 5/64″) | Pull Force: Approx. 3 lb Ring 8x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 8mm X 3mm thick Hole 3mm (approx. Dia 1/3″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 3.45 lb Ring 10x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 10mm X 3mm thick Hole 3mm (approx. Dia 3/8″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 3.5 lb Ring 12x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 12mm X 3mm thick Hole 3mm (approx. Dia 1/2″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 5.75 lb Ring 12x5mm Hole 4mm N52 (countersunk to N or S Pole):Diameter 12mm X 5mm thick Hole 4mm (approx. Dia 1/2″ x 3/16″ thick Hole 5/32″) | Pull Force: Approx. 7.5 lb Ring 15x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 15mm X 3mm thick Hole 3mm (approx. Dia 19/32″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 8.5 lb Ring 15x4mm Hole 4mm N52 (countersunk to N Pole):Diameter 15mm X 4mm thick Hole 4mm (approx. Dia 19/32″ x 5/32″ thick Hole 5/32″) | Pull Force: Approx. 10.5 lb Ring 18x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 18mm X 3mm thick Hole 3mm (approx. Dia 45/64″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 10.5 lb Ring 20x3mm Hole 3mm N52 (countersunk to N or S Pole):Diameter 20mm X 3mm thick Hole 3mm (approx. Dia 25/32″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 11.5 lb Ring 20x5mm Hole 5mm N52 (countersunk to N or S Pole):Diameter 20mm X 5mm thick Hole 5mm (approx. Dia 25/32″ x 3/16″ thick Hole 3/16″) | Pull Force: Approx. 19 lb Ring 25x3mm Hole 4mm N52 (countersunk to N or S Pole):Diameter 25mm X 3mm thick Hole 4mm (approx. Dia 1″ x 1/8″ thick Hole 5/32″) | Pull Force: Approx. 13.5 lb Ring 25x5mm Hole 5mm N52 (countersunk to N or S Pole):Diameter 25mm X 5mm thick Hole 5mm (approx. Dia 1″ x 3/16″ thick Hole 3/16″) | Pull Force: Approx. 26.5 lb Ring 50x5mm Hole 6mm N52 (countersunk to N Pole):Diameter 50mm X 5mm thick Hole 6mm (approx. Dia 2″ x 3/16″ thick Hole 1/6″) | Pull Force: Approx. 45 lb Magnet Rings:Ring 7x4mm Hole 2mm N52:Diameter 7mm X 4mm thick Hole 2mm (approx. Dia 3/8″ x 1/8″ thick Hole 1/8″) | Pull Force: Approx. 3 lb Ring 12x5mm Hole 4mm N52:Diameter 12mm X 5mm thick Hole 4mm (approx. Dia 1/2″ x 3/16″ thick Hole 5/32″) | Pull Force: Approx. 7.5 lb Ring 15x4mm Hole 4mm N52:Diameter 15mm X 4mm thick Hole 4mm (approx. Dia 19/32″ x 5/32″ thick Hole 5/32″) | Pull Force: Approx. 10.5 lb Ring 32x5mm Hole 5mm N52:Diameter 32mm X 5mm thick Hole 5mm (approx. Dia 1.26″ x 3/16″ thick Hole 3/16″) | Pull Force: Approx. 30 lb Ring 38x5mm Hole 5mm N52:Diameter 38mm X 5mm thick Hole 5mm (approx. Dia 1.5″ x 3/16″ thick Hole 3/16″) | Pull Force: Approx. 34 lb WARNING! The neodymium magnets we sell are extremely strong, and must be handled with care to avoid injury and damage. Fingers can get severely pinched between two attracting magnets. Neodymium magnets are brittle, and can peel, crack or shatter if allowed to slam together. Eye protection should be worn when handling these magnets, because shattering magnets can launch pieces at great speed.The strong magnetic fields of these magnets can damage magnetic media such as floppy discs, credit cards, magnetic ID cards, cassette tape, videotapes and similar items. They can also damage televisions, VCRs, computer and CRT monitors and other electronics. Never place neodymium magnets near any of these items.Children should not be allowed to handle neodymium magnets, as they can be dangerous. These magnets are not toys. Small magnets risk a chocking hazard and should never be swallowed or inserted into any part of the body. Never allow neodymium magnets near a person with a pacemaker or similar medical devices. The strong magnetic fields can affect the operation of such devices.Neodymium magnets are brittle and prone to chipping and cracking. They do not take kindly to machining. Neodymium magnets should never be burned, as burning them will create toxic fumes.————————————————-Shipping:Free standard shipping for all USA orders We ship from Brooklyn New York

3mm x 2mm 1/8″x 5/64″ N52 Strong Rare Earth Neodymium Small Magnet Discs 3x2mm

10/08/2026

3mm x 2mm – 1/8″x 5/64″ Strong Round Disc Rare Earth Magnets Specification:Dimensions: 3mm x 2mm thick (approx. 1/8″x5/64″) Tolerances: ±0.2mm x ±0.2mm (0.01in) Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

15mm x 1mm N52 Strong Round Disc Rare Earth Neodymium thin Magnet 15x1mm

10/08/2026

15mm x 1mm Strong Round Magnets Rare Earth thin Magnets Specification:Dimensions: 15mm x 1mm thick Tolerances: ±0.2mm x ±0.2mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Pull Force: approx. 0.6 lb Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

5mm x 1mm N52 Strong Rare Earth Neodymium Small Magnet Discs 5x1mm

10/08/2026

5mm x 1mm Strong Round Disc Rare Earth Magnets Specification:Dimensions: 5mm x 1mm thick (approx. 3/16″x1/32″) Tolerances: ±0.2mm x ±0.2mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

N52 Super Strong Rare Earth Neodymium Magnet Blocks Squares Thin Small Large

10/08/2026

Grade N52 Super Strong Rare Earth Neodymium Magnet Blocks(only items 50x25x10mm and 10x5x0.5mm Blocks are grade N35) General Specifications:Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends)Max Operating Temp: 176ºF (80ºC) Pull forces mentioned below are base on magnet to steel plate Material Features: Neodymium Magnets are made of a brittle material (NDFEB). These magnets are not as strong as steel, they are more like a brittle ceramic. If you let two magnets slam together, they can crack and break, this is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to play with the magnets as they could get injured. Pay attention to small magnets, please place somewhere children can’t reach. Dimensions:Block 3mm x 3mm x 0.5mm thickness – grade N52Approx. 1/8″ x 1/8″ x 1/64″ thickness – Pull force approx. 0.1LB Block 3mm x 3mm x 1mm thickness – grade N52Approx. 1/8″ x 1/8″ x 1/32″ thickness – Pull force approx. 0.25LB Block 3mm x 3mm x 2mm thickness – grade N52Approx. 1/8″ x 1/8″ x 5/64″ thickness – Pull force approx. 0.65LB Block 4mm x 4mm x 0.5mm thickness – grade N52Approx. 5/32″ x 5/32″ x 1/64″ thickness – Pull force approx. 0.12LB Block 4mm x 4mm x 1mm thickness – grade N52Approx. 5/32″ x 5/32″ x 1/32″ thickness – Pull force approx. 0.5LB Block 4mm x 4mm x 2mm thickness – grade N52Approx. 5/32″ x 5/32″ x 5/64″ thickness – Pull force approx. 0.9LB Block 5mm x 5mm x 0.5mm thickness – grade N52Approx. 3/4″ x 3/4″ x 1/64″ thickness – Pull force approx. 0.31LB Block 5mm x 5mm x 1mm thickness – grade N52Approx. 3/4″ x 3/4″ x 1/32″ thickness – Pull force approx. 0.65LB Block 5mm x 5mm x 2mm thickness – grade N52Approx. 3/16″ x 3/16″ x 5/64″ thickness – Pull force approx. 1.45LB Block 6mm x 6mm x 1mm thickness – grade N52Approx. 1/4″ x 1/4″ x 1/32″ thickness – Pull force approx. 0.85LB Block 6mm x 6mm x 2mm thickness – grade N52Approx. 1/4″ x 1/4″ x 5/64″ thickness – Pull force approx. 1.85LB Block 8mm x 8mm x 1mm thickness – grade N52Approx. 1/3″ x 1/3″ x 1/32″ thickness – Pull force approx. 1.25LB Block 10mm x 10mm x 0.5mm thickness – grade N52Approx. 3/8″ x 3/8″ x 1/64″ thickness Block 10mm x 10mm x 1mm thickness – grade N52Approx. 3/8″ x 3/8″ x 1/32″ thickness – Pull force approx. 1.65LB Block 12mm x 12mm x 0.5mm thickness – grade N52Approx. 1/2″ x 1/2″ x 1/64″ thickness Block 12mm x 12mm x 1mm thickness – grade N52Approx. 1/2″ x 1/2″ x 1/32″ thickness – Pull force approx. 2.1LB Block 15mm x 15mm x 0.5mm thickness – grade N52Approx. 5/8″ x 5/8″ x 1/64″ thickness Block 15mm x 15mm x 1mm thickness – grade N52Approx. 5/8″ x 5/8″ x 1/32″ thickness – Pull force approx. 2.6LB Block 10mm x 3mm x 0.5mm thickness – grade N52Approx. 3/8″ x 1/8″ x 1/64″ thickness – Pull force approx. 0.41LB Block 10mm x 5mm x 0.5mm thickness – grade N35Approx. 3/8″ x 3/16″ x 1/64″ thickness – Pull force approx. 0.25LB Block 10mm x 5mm x 2mm thickness – grade N52Approx. 3/8″ x 3/16″ x 5/64″ thickness – Pull force approx. 2.4LB Block 10mm x 5mm x 3mm thickness – grade N52Approx. 3/8″ x 3/16″ x 1/8″ thickness – Pull force approx. 3.6LB Block 12mm x 6mm x 1mm thickness – grade N52Approx. 1/2″ x 1/4″ x 1/32″ thickness – Pull force approx. 1.45LB Block 12mm x 6mm x 2mm thickness – grade N52Approx. 1/2″ x 1/4″ x 5/64″ thickness – Pull force approx. 3.05LB Block 12mm x 6mm x 3mm thickness – grade N52Approx. 1/2″ x 1/4″ x 1/8″ thickness – Pull force approx. 4.8LB Block 9mm x 9mm x 7.5mm thickness – grade N52Approx. 23/64″ x 23/64″ x 19/64″ thickness – Pull force approx. 9.9LB Block 20mm x 10mm x 1mm thickness – grade N52Approx. 25/32″ x 3/8″ x 1/32″ thickness – Pull force approx. 2.65LB Block 20mm x 10mm x 2mm thickness – grade N52Approx. 25/32″ x 3/8″ x 5/64″ thickness – Pull force approx. 5.5LB Block 20mm x 10mm x 5mm thickness – grade N52Approx. 25/32″ x 3/8″ x 3/16″ thickness – Pull force approx. 15.1LB Block 20mm x 20mm x 2mm thickness – grade N52Approx. 25/32″ x 25/32″ x 5/64″ thickness – Pull force approx. 7.9LB Block 25mm x 5mm x 1mm thickness – grade N52Approx. 1″ x 3/16″ x 1/32″ thickness – Pull force approx. 2.02LB Block 25mm x 5mm x 2mm thickness – grade N52Approx. 1″ x 3/16″ x 5/64″ thickness – Pull force approx. 4.4LB Block 25mm x 12mm x 3mm thickness – grade N52Approx. 1″ x 3/16″ x 1/8″ thickness – Pull force approx. 11.5LB Block 25mm x 25mm x 2mm thickness – grade N52Approx. 1″ x 1″ x 5/64″ thickness – Pull force approx. 9.9LB Block 40mm x 40mm x 4mm thickness – grade N52Approx. 1″37/64 x 1″37/64 x 5/32″ thickness – Pull force approx. 32.5LB Block 50mm x 25mm x 10mm thickness – grade N52Approx. 2″ x 1″ x 3/8″ thickness – Pull force approx. 75.5LB Block 60mm x 10mm x 3mm thickness – grade N52Approx. 2.36in x 0.39in x 1/8in thickness – Pull force approx. 16LB Block 60mm x 10mm x 5mm thickness – grade N52Approx. 2.36in x 0.39in x 0.2in thickness – Pull force approx. 30LB

5mm x 3mm N52 Strong Round Disc Rare Earth Neodymium Magnet 5x3mm

10/08/2026

5mm x 3mm N52 Strong Round Magnets Rare Earth Magnets Specification:Dimensions: 5mm x 3mm thick Tolerances: ±0.2mm x ±0.2mm Plating/Coating: Ni-Cu-Ni (Nickel) Magnetization Direction: Axial (Poles on Flat Ends) Max Operating Temp: 176ºF (80ºC) Pull Force: Approx. 1.6 lb Material Features: N52 grade Magnets are made of a brittle material. These magnets are not as strong as steel. They are more like a brittle ceramic. If you let two magnets slam together, they can crack and break. This is true for magnets large and small. WARNING!!! Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets, please place in somewhere children can’t reach place.

12mm x 5mm Hole 4mm N52 Strong Rare Earth Neodymium Magnet Rings 12x5mm H4mm

12mm x 1mm 1/2″x 1/32″ N52 Strong Disc Rare Earth Neodymium thin Magnet 12x1mm

6mm x 2mm N52 Strong Round Disc Rare Earth Neodymium Magnet 6x2mm

4mm x 2mm 5/32″x5/64″ N52 Rare Earth Neodymium Small Magnet Discs 4x2mm

Rings Countersunk N52 Super Strong Rare Earth Neodymium Magnet North South Poles

3mm x 2mm 1/8″x 5/64″ N52 Strong Rare Earth Neodymium Small Magnet Discs 3x2mm

15mm x 1mm N52 Strong Round Disc Rare Earth Neodymium thin Magnet 15x1mm

5mm x 1mm N52 Strong Rare Earth Neodymium Small Magnet Discs 5x1mm

N52 Super Strong Rare Earth Neodymium Magnet Blocks Squares Thin Small Large

5mm x 3mm N52 Strong Round Disc Rare Earth Neodymium Magnet 5x3mm

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JC-Magnetics

Elementos de diferenciação nos produtos Zacelis:Economia, Durabilidade, Leveza e Beleza.Tudo isso em nossos produtos.

Newsletter

TELHA SANDUÍCHE

Aluzinco / Galvalume

TELHA FACE TELHA

Aluzinco / Galvalume

TELHA FACE LISA

Aluzinco / Galvalume

TELHA FACE LISA com filme

Aluzinco / Galvalume

TELHA TRAPEZOIDAL TP40

Aluzinco / Galvalume

TELHA ONDULADA

Aluzinco / Galvalume

CHAPA ZINCADA

Zincada

CHAPA ALUZINC / GALVALUME

Aluzinco / Galvalume

BOBININHAS E SLITTERS

Aluzinco / Galvalume e Zincadas

Elementos de diferenciação nos produtos Zacelis:

Economia, Durabilidade, Leveza e Beleza.
Tudo isso em nossos produtos.