Expoxy + Ni Countersunk Holes Permanent Neodymium Magnets from China manufacturer

Expoxy + Ni Countersunk Holes Permanent Neodymium Magnets

Price:	4.0~7.0 USD
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: N42 2 inch x 1 inch x 0.5 i...

Packing: According to customer's req...

Grade: N42

Shape: Countersunk

Size: 2 inch x 1 inch x 0.5 inch ...

Tolerance: +/-0.05mm

Export Area: All of the World

Production Capacity: 1,000,000pcs/month

Delivery Date: 7-10days

Platings: Nickel

Composite: NdFeB

Place of Origin: Zhejiang, China (Mainland)

Application: Industrial Magnets

Type: Permanent

Strong Neodymium Magnet Grade N42, stronger than N40, N38 and N35
BrMax: 13200 gauss

Product Description:

Neodymium Magnet 2 inch x 1 inch x 0.5 inch Thick Rare Earth NdFeB Magnet Grade N42, 20% stronger than N35
Dual Sided Tapered counter sunk center hole on both sides of magnet to recess a screw head

Grade N42 is the recommended Grade due to its cost effectiveness over N35/N38/N40 in Hugh Piggott's new book "A Wind Turbine Recipe Book".

Extremely durable Epoxy + Copper + Nickel Triple Layer Coated with tapered center hole

0.14" Diameter counter sunk center hole fits with #6 metal screws

Epoxy-Copper-Nickel triple layer coated for maximum neodymium magnet protection and durability

YOU GET WHAT YOU PAY FOR !!!

For wind generator magnets, coating and performance are the most important things to consider, we recommend Epoxy+Copper+Nickel 3-layer coating for long term durability under all weather conditions, we don't recommend Epoxy single layer coating, please read details below. To have better performance for your wind generator, the higher grade the magnets, the better; N42 grade offers much better performance than N35. we recommend at least N42 or higher grade for high performance.

Grade Makes a big difference ! The higher the grade, the stronger the magnetN42 grade vs. N35/N38/N40

N35 is the lowest NdFeB neodymium magnet grade on the market, we don't carry N35 grade due to its lower performance making our N42 grade the better value.

N38 and N40 are lower grades compared to N42.

Coating Makes a big difference !

Hugh Piggott talks about wind turbine failure caused by magnet corrosion due to bad coating in his book:

"........ the magnets themselves that can lead to a major failure in under 5 years............. Once the protective plating on the magnet is punctured, the magnet corrodes and swells gradually."

3-layer coating (Nickel + Copper + Nickel and Epoxy + Copper + Nickel) vs. Epoxy single layer coating
Epoxy single layer coating is THE LEAST durable coating from our experience.
3-layer coating is much more durable than Epoxy single layer coating because Epoxy single layer coating is a thin layer of plastic and quicker to wear off, even a scratch can damage the coating easily.

More importantly, magnets with 3-layer coating have superior cracking and chipping resistance in comparison to magnets with Epoxy single layer coating. Customer beware of the magnets with the inferior Epoxy single layer coating.

Epoxy+Copper+Nickel 3-layer coating vs. Nickel+Copper+Nickel 3-layer coating

Epoxy + Copper + Nickel 3-layer coating has superior Corrosion Resistance and excellent adhesion to metal surface than Nickel + Copper + Nickel coating, this coating is ideal for bonding metal. Nickel+Copper+Nickel coating provides protection against moisture and oxygen but is prone to corrosion in salt and acidic conditions.

These magnets are much stronger than N35 grades, they provide higher output and performance than lower grade for wind generators.

Magnetized through the Thickness 0.5", poles are on the two 2x1" surfaces

Approximate Neodymium Magnet pull force: 72 lbs

Neodymium magnet is the world's strongest magnets. All magnets are not created equal! Applied Magnets offers the highest quality neodymium magnet with consistent performance at lowest price. Our strong neodymium magnet are designed & manufactured to meet stringent quality standards using the latest technology.

Neodymium magnet (also known as Neo, NdFeB, NIB or super magnets) , a type of rare earth magnet, is a permanent magnet made from neodymium, iron, boron and other minor elements.

Strong Neodymium Magnet Grade N42, stronger than N40, N38 and N35

BrMax: 13200 gauss

Epoxy-Copper-Nickel 3-layer coated for maximum neodymium magnet durability and protection again corrosion

neodymium magnet :

1.Material:rare earth ,neodymium -Iron-Boron
2.Shape:Tile,Ring,Disc,Block,Cylinder,Tile,Arc,customers

3.Size:4X3mm,5X3mm,8X3mm,30X5mm,15X7mm or customized
4.Grade:N35-N52,N30M-N48M,N35SH-N45SH,etc.

5.Coating :NiCuNi, Ni,Zn,Gold,Silver,Epoxy,chemical plating Ni,etc.

6.Application: Sensors, Motors, Rotors, Wind turbines/wind generators, Loudspeakers, Magnetic hooks & holder, Filters, Automobiles, Jewelry.etc.

Neodymium magnet advantages
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature

Transportation

All available shipping ways could be applied, by courier, by air or by sea.

Appointed shipping company or our own forwarders all could be used in shipment.

Full-way tracking the cargos for you before the goods arrive.

Buyer Guide

In order to quote you the best price quickly, please provide the following information:

1.Product size,grade,coating,etc.

2.Order quantity;

3.Attached the drawings if customized
4.Any special packing or other requirements

Our advantage

1. Fast reply: all your enquiry will be replied within 24 hours;

2. Reasonable price: we are direct manufacturer and able to offer better price;

3. Good quality: we are experienced in quality control;

4. Fast delivery time:7-20 days.

Magnetic properties of main grades

Grade	Residual Induction		Coercive Force		Intrinsic Coercivity		Maximum Energy Product		TW
	Br		_BH_C		_IH_C		(BH)max.		TW
	kGs	T	kOe	kA/m	kOe	kA/m	MGOe	kJ/m³	℃
N33	11.3-11.7	1.13-1.17	≥10.5	≥836	≥12	≥955	31-33	247-263	80
N35	11.7-12.1	1.17-1.21	≥10.9	≥868	≥12	≥955	33-36	263-287	80
N38	12.1-12.5	1.21-1.25	≥11.3	≥899	≥12	≥955	36-39	287-310	80
N40	12.5-12.8	1.25-1.28	≥11.6	≥923	≥12	≥955	38-41	302-326	80
N42	12.8-13.2	1.28-1.32	≥11.6	≥923	≥12	≥955	40-43	318-342	80
N45	13.2-13.8	1.32-1.38	≥11.0	≥876	≥12	≥955	43-46	342-366	80
N48	13.8-14.2	1.38-1.42	≥10.5	≥835	≥11	≥876	46-49	366-390	80
33H	11.3-11.7	1.13-1.17	≥10.5	≥836	≥17	≥1353	31-34	247-271	120
35H	11.7-12.1	1.17-1.21	≥10.9	≥868	≥17	≥1353	33-36	263-287	120
38H	12.1-12.5	1.21-1.25	≥11.3	≥899	≥17	≥1353	36-39	287-310	120
40H	12.4-12.8	1.24-1.28	≥11.6	≥923	≥17	≥1353	38-41	302-326	120
42H	12.8-13.2	1.28-1.32	≥12.0	≥955	≥17	≥1353	40-43	318-342	120
33SH	11.3-11.7	1.13-1.17	≥10.6	≥844	≥20	≥1592	31-34	247-272	150
35SH	11.7-12.1	1.17-1.21	≥11.0	≥876	≥20	≥1592	33-36	263-287	150
38SH	12.1-12.5	1.21-1.25	≥11.4	≥907	≥20	≥1592	36-39	287-310	150
40SH	12.4-12.8	1.24-1.28	≥11.8	≥939	≥20	≥1592	38-41	302-326	150
28UH	10.2-10.8	1.02-1.08	≥9.6	≥764	≥25	≥1990	26-29	207-231	180
30UH	10.8-11.3	1.08-1.13	≥10.2	≥812	≥25	≥1990	28-31	223-247	180
33UH	11.3-11.7	1.13-1.17	≥10.7	≥852	≥25	≥1990	31-34	247-271	180
28EH	10.4-10.9	1.04-1.09	≥9.8	≥780	≥30	≥2388	26-29	207-231	200
30EH	10.8-11.3	1.08-1.13	≥10.2	≥812	≥30	≥2388	28-31	223-247	200

Note:
aB - reversible temperature coefficient of induction.

Shapes and sizes available (as standard):
Shapes: Blocks/plates, disks/rods, rings, segments
Two (four) poles
Note: More complicated shapes and any magnetic configuration can be provided by special order.

Standard sizes:

Blocks/plates

	Min, mm	Max, mm
W	2	70
T	1.5	50
L	1	15

Disks/rods with axial magnetic texture

	Min, mm	Max, mm
Dia	5	70
h	1.2	12

Disks/rods with diametrical magnetic texture

	Min, mm	Max, mm
Dia	2	12
h	1.2	40

Segments with axial magnetic texture

	Min, mm	Max, mm
OD	96	96
ID	48	55
h	5	12
Opening angle, degree	35	45

Segments with diametrical magnetic texture

	Min, mm	Max, mm
OD	50	120
ID	32	180
h	8	50
Opening angle, degree	30	60

Rings with axial magnetic texture

	Min, mm	Max, mm
OD	5	70
ID	3	26
h	1.2	40

Neodymium:
NdFeB, the third generation of rare-earth permanent magnet, has high remanence, high coercive force, high-energy product and high performance/cost ratio.

Neodymium Magnets are easily formed into various sizes and widely used in many fields such as magnets for aviation, electronics, instruments, meters, machine and medical instruments. Neodymium metal is used extensively to produce Nd-Fe-B magnets, which have energy densities as high as 27 to 35 million gauss oersteds.

They are the most compact magnets commercially available. It is especially suitable for the development of magnets for high-performance, compact and light products.

Material:NdFeB magnet
Grade:N35-N52,(M,H,SH,UH,EH)
Plated:NiCuNi
Magnetized:axially by thickness
Certificate:REACH,CE
Application:motor,magnetic separator.
Operating temp: max.80°

Versions up to 200° and any other dimension onrequest

Material: Neodymiummagnet, which canhold about anything you need to keep within easy reach.

Application: on therefrigerator for aprons, oven mitts or kitchen gadgets, office filing cabinetsor in a

school or gym locker.

For NdFeB magnet, it's with strongmagnetism:
Super strong neodymium magnet assembly with easy-clip carabineholder has 45 lbs. pull.

Use to hang a tool belt or otherheavy items to metal walls, beams and cabinets.

It works well in jobber vans,workshops, auto repair and service stations, or even in the warehouse. 1.125"diameter
Small quantity is acceptable too. Magnetic hooks are widely used inauto industry.

Product Name: Motor Magnet, Segment, Arc ndfeb magnet, Arc Magnets.Tile NdFeB Magnet

It is one special shape of Rare earth magnets and permanent magnets. It is always manufactured via Wire Cutting and grinding etc. Regular Arc magnets or Segment magnets have the following important factors such as, Outer Diameter or Outer Radius, Inner Diameter or Inner Radius, Degree of Angle, Thickness, Length, Round Edge etc.

Applications:

Motors, eg. voice coil motor (VCM),step motor, geared down motor, etc.

Features:

Generally speaking, Arc Magnets are all made as Customer Design and as Special requirement. Our factory production and manufacture magnets according to customer's design on shape, dimension, grades, coatings etc.

Magnets grade: From N35 to N50, from N Series to UH Series.
Magnets drawing with size and shape and different side view
Magnetism direction: Mostly magnetized via diameter, if special magnetism direction, please show on the drawing in advance.
Magnets coating: Nickel, Zn, Black Epoxy, Black Nickel ,Nickel -Cu-Nickel,Ag, Au etc.
Quantities: More mass order quantities. More lower the prices. Original manufacture.