Super Strong Square Rectangular N52 Block Neodymium iron boron Bar Magnets

Short Description:

All Magnets can be OEM/ODM

Engineering Service:As custom magnet manufacturers, engineering is at the heart of our business
High quality Passed the ISO9001  quality system authentication and ROHS authentication.
Valued-Service : 100% guarantee for customers

  • Grade: N35-52
  • Composite: NdFeB Magnet
  • Type: Permanent
  • Shape: Block
  • Coating: Ni-Cu-Ni, Zn, Epoxy
  • Delivery Time: 8-14 days
  • Density: 7.5-7.6g per cubic centimetre
  • Product Detail

    Product Tags

    Professional Effective Fast


    Super Strong Square Rectangular N52 Block Neodymium iron boron Bar Magnets

    Over the last 15 years Hesheng export 85% of its products to American, European, Asian and African countries. With such wide range of neodymium and permanent magnetic material options, our professional technicians are available to help solve your magnetic needs and choose the most cost effective material for you.

    Product Details

    bar magnet 4



    Customized Rare Earth Magnets

    Neodymium magnets are all graded by the material they are made of. As a very general rule, the higher the grade (the number following the 'N'), the stronger the magnet. The highest grade of neodymium magnet currently available is N52. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. The temperature ratings are standard (no designation) - M - H - SH - UH - EH.

    Permanent Sintered Neodymium Magnets/Rare Earth Magnet                                               
    Sintered NdFeB Magnets
    Block, Bar, Cube, Disc, Ring, Cylinder, Ball, Arc, Trapezoid, etc
    Ni, Zn, Epoxy, Parylene, Gold, Passivated, etc
    7.5-7.6 g/cm³
    Delivery date
    7-10 days for common samples, 15-20 days for mass produciton
    Magnetic Grade
    Working Temperature
    Magnetic Grade
    Working Temperature
    80 ℃(176 ℉)
    60 ℃(160 ℉)
    100 ℃(212 ℉)
    120℃(248 ℉)
    150 ℃(302 ℉)
    180 ℃(356 ℉)
    200℃(392 ℉)
    220 ℃(428 ℉)

    Product Display

    Advanced production equipment and 30 years of production experience can effectively help you customize various shapes! Special shaped magnet (triangle, bread, trapezoid, etc.) also can be customized!

    >Neodymium Magnet


    >Customized Strong Magnet

    We accept customized services: 1) Shape and Dimension Requirements; 2) Material and coating requirements; 3) Processing according to design drawings; 4)Requirements for Magnetization Direction; 5) Magnet Grade Requirements; 6) Surface treatment requirements (plating requirements)

    > Buyer's Guide

    In order to quote you the best price, please provide us the following informations. 

    Shape Block/Rectangle/Square Disc/Round/Cylinder Ring/Countersunk 
    Dimension L (?) x W(? ) xT(?) D(?) x T(?) OD(?) x ID(?) x T(?)
    For other shapes,please tell more in details or drawing would be much appreciated.
    Coating Zn,Nickel,Ni-Cu-Ni,Epoxy,Au,Silver or other ?
    Working Temperature  Normal or High temperature ? 

    > Our Services

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

     1. Magnet grade, size,coating etc.               2. Order quantity.

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

    >Magnetization Direction and Coating include




    Magnet Coating Types Display

    Support all magnet plating , like Ni, Zn, Epoxy , Gold, Silver etc.
    Ni Plating Maget: Good anti-oxidation effect, high gloss apprearance,long servie life .
    Zn Plating Magnet: Suitable for general requirements on surface appearance and oxidation resistance .
    Epoxy Plating Magnet: Black surface, suitable for harsh atmospheric environments and occasions which require high corrosionresistance.

    >Our Magnets are Widely Application




    1) Electronics – Sensors, hard disk drives, sophisticated switches, electro-mechanical devices etc.;
    2) Auto Industry – DC motors (hybrid and electric), small high-performance motors, power steering;
    3) Medical – MRI equipment and scanners;
    4) Clean Tech Energy – Water flow enhancement, wind turbines;
    5) Magnetic Separators – Used for recycling, food and liquids QC, waste removal;
    6) Magnetic Bearing – Used for highly sensitive and delicate procedures in various heavy industries.


    Our Company


    Hesheng magnet group Advantage: 

    • We own one-step complete industrial chain from raw material blank, cutting, electroplating and standard packing. 

    • We provide magnets for a dozen of Fortune Global 500 enterprises such as Apple, Samsung, Lenovo etc.

    • In Europe market, 80% permanent magnets used for Industry.

    • With rich exporting experiences with neodymium magnets, we build supply chain to offer neodymium magnets with professional service.

    Processing and Production Equipment

    Step : Raw Material→Cutting→Coating→Magnetizing→Inspection→Packaging

    From the raw material to finished product, all the processes are completed in our factory, and are under our strict control.


    Quality Inspection Equipment

    1> Magnet will be inspected strictly during the production of every process. 2> Every magnet will have a certificate before delivery.  3> Magnetic Flux report and Demagnetization Curve can be offered according to request.


    Core Advantage

    1> Cutting-Edge TechnologySelf-Developed Key Equipment, Unique Manufacturing Process, Energetic R&D Team.
    2> Full Scale Production
    3> The Integrated Industry Supply Chain.
    4> Outstanding Product.




    3> High Consistency

    The Cpk of Remanence (Br) and Intrinsic Coercive Force (Hcj) are much higher than 1.67.The Consistency of the surface magnetic field and magnetic flux can be controlled at +/-1%.

    4> High Anti-Corrosion

    The salt spray test and humidity heat test of the high anti-corrosion coating Nickel+Copper+Epoxy is typically more than 500 hours.

    5> Low Weight Loss

    PCT: 130°C, humidity 100%, vapor pressure 2.7 bar, 20 days, average low weight loss <2 mg/cm2.
    High Consistency

    Complete Certificates


    Note: Space is limited, please contact us to confirm other certificates.
    At the same time, our company can carry out certification for one or more certificates according to your requirements. Please contact us for details

    Packing & Sale



    1.White inner box.

    2.Suitable carton size.

    3.Anti-magnetized packaging.

    4.We will suggest the best solution of shipment for your reference according to order quantityes.



    Samples: Western Union and Paypal acceptable.Orders: T/T,30% deposit,and the balance before shipment or against copy of B/L. For large order, L/C at sight is acceptable.


    Small packages are usually delivered by express, such us FedEx,UPS,DHL,EMS,TNT etc. Goods in large quantity are usually delivered by sea or by air.


    Performance Table



    Q1: Could I get samples?
    A: Samples are available and free.

    Q2: How about your delivery date?
    A: 3-7 days for samples and 15-20 days for mass production.

    Q3: Do you test all your goods before delivery?
    A: Yes, we have 100% test before delivery

    Q4: What is the usual payment method?
    A: T/T, Paypal, L/C, VISA, e-Checking,Western Union.

    Q5: How do you make our business long-term and good relationship?
    A: 1. We keep good quality and competitive price to ensure our customers benefit ;

    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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    contact us

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