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  • Factory supplied Neodymium Woofer Speaker - SmCo – Rumotek

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    Factory supplied Neodymium Woofer Speaker - SmCo – Rumotek Detail:

    Introduction:
    SmCo magnets represent the latest generation of magnetic materials. They are developed over 40 years ago and introduced the era of permanent magnet motors. At that time, these rare earth metals were very expensive. During the 1980s, SmCo material was increasingly replaced by NdFeB magnets. Due to the dramatic price rise in the rare earths neodymium and dysprosium (Nd/Dy), this material has now regained its popularity in applications at higher temperatures (150°C –  200°C). However, there are limits set on the material with regard to the maximum remanence.  Two major types of SmCo magnets are available, 1:5 type (SmCo5) and 2:17 type (Sm2Co17). SmCo magnets have super high magnetic properties and temperature properties.
    Advantage:
    Use of these magnets is conditioned by the temperature in a wide range running from 250ºC to 350ºC and their Curie temperature can be as high as 710 to 880 °C. Therefore, SmCo magnet has the best magnetic stability due to the superior resistance to high temperature. SmCo magnets are characterized by very high corrosion resistance, no coating required for surface protection.
    Feature:
    A disadvantage of SmCo magnets is the marked brittleness of the material – a factor which must  be particularly taken into account during processing. The magnets are galvanized or coated by  cathodic electrodeposition for certain applications.
    Application:
    In areas high operating temperature, high corrosion and oxidation resistance are crucial. Such as Electronic magnetron, Magnetic transmission, Magnetic treatment, Magnistor, etc.
    All stated values were determined using standard samples according IEC 60404-5. The following specifications serve as reference values and may differ. The max. operating temperature is
    dependent on the magnet dimesion and the specific application. For more information please
    contact our application engineers.

    Sintered SmCo Magnet Physical Properties
    Material Grade Remanence Rev. Temp.- Coeff. Of Br Coercive Force Intrinsic Coercive Force Rev. Temp.-Coeff. Of Hcj Max. Energy Product Max. Operating Temperature Density
    Br (KGs) Hcb (KOe) Hcj (KOe) (BH)max. (MGOe) g/cm³
    SmCo5 XG16 8.1-8.5 -0.050 7.8-8.3 15-23 -0.30 14-16 250℃ 8.3
    XG18 8.5-9.0 -0.050 8.3-8.8 15-23 -0.30 16-18 250℃ 8.3
    XG20 9.0-9.4 -0.050 8.5-9.1 15-23 -0.30 19-21 250℃ 8.3
    XG22 9.2-9.6 -0.050 8.9-9.4 15-23 -0.30 20-22 250℃ 8.3
    XG24 9.6-10.0 -0.050 9.2-9.7 15-23 -0.30 22-24 250℃ 8.3
    XG16S 7.9-8.4 -0.050 7.7-8.3 ≥23 -0.28 15-17 250℃ 8.3
    XG18S 8.4-8.9 -0.050 8.1-8.7 ≥23 -0.28 17-19 250℃ 8.3
    XG20S 8.9-9.3 -0.050 8.6-9.2 ≥23 -0.28 19-21 250℃ 8.3
    XG22S 9.2-9.6 -0.050 8.9-9.5 ≥23 -0.28 21-23 250℃ 8.3
    XG24S 9.6-10.0 -0.050 9.3-9.9 ≥23 -0.28 23-25 250℃ 8.3
    Sm2Co17 XG24H 9.5-10.2 -0.025 8.7-9.6 ≥25 -0.20 22-24 350℃ 8.3
    XG26H 10.2-10.5 -0.030 9.4-10.0 ≥25 -0.20 24-26 350℃ 8.3
    XG28H 10.3-10.8 -0.035 9.5-10.2 ≥25 -0.20 26-28 350℃ 8.3
    XG30H 10.8-11.0 -0.035 9.9-10.5 ≥25 -0.20 28-30 350℃ 8.3
    XG32H 11.0-11.3 -0.035 10.2-10.8 ≥25 -0.20 29-32 350℃ 8.3
    XG22 9.3-9.7 -0.020 8.5-9.3 ≥18 -0.20 20-23 300℃ 8.3
    XG24 9.5-10.2 -0.025 8.7-9.6 ≥18 -0.20 22-24 300℃ 8.3
    XG26 10.2-10.5 -0.030 9.4-10.0 ≥18 -0.20 24-26 300℃ 8.3
    XG28 10.3-10.8 -0.035 9.5-10.2 ≥18 -0.20 26-28 300℃ 8.3
    XG30 10.8-11.0 -0.035 9.9-10.5 ≥18 -0.20 28-30 300℃ 8.3
    XG32 11.0-11.3 -0.035 10.2-10.8 ≥18 -0.20 29-32 300℃ 8.3
    XG26M 10.2-10.5 -0.035 8.5-9.8 12-18 -0.20 24-26 300℃ 8.3
    XG28M 10.3-10.8 -0.035 8.5-10.0 12-18 -0.20 26-28 300℃ 8.3
    XG30M 10.8-11.0 -0.035 8.5-10.5 12-18 -0.20 28-30 300℃ 8.3
    XG32M 11.0-11.3 -0.035 8.5-10.7 12-18 -0.20 29-32 300℃ 8.3
    XG24L 9.5-10.2 -0.025 6.8-9.0 8-12 -0.20 22-24 250℃ 8.3
    XG26L 10.2-10.5 -0.035 6.8-9.4 8-12 -0.20 24-26 250℃ 8.3
    XG28L 10.3-10.8 -0.035 6.8-9.6 8-12 -0.20 26-28 250℃ 8.3
    XG30L 10.8-11.5 -0.035 6.8-10.0 8-12 -0.20 28-30 250℃ 8.3
    XG32L 11.0-11.5 -0.035 6.8-10.2 8-12 -0.20 29-32 250℃ 8.3

    Note:
    · We remain the same as above unless specified from customer. Curie temperature and temperature coefficient are for reference only, not as a basis for decision.
    · The maximum working temperature of magnet is changeable due to ratio of length and diameter and environment factors.


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    Factory supplied Neodymium Woofer Speaker - SmCo – Rumotek detail pictures


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    Reliable quality and good credit standing are our principles, which will help us at a top-ranking position. Adhering to the tenet of "quality first, customer supreme" for Factory supplied Neodymium Woofer Speaker - SmCo – Rumotek , The product will supply to all over the world, such as: Thailand, Brisbane, Pakistan, By integrating manufacturing with foreign trade sectors, we can provide total customer solutions by guaranteeing the delivery of right products to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified product portfolios and the control of the industry trend as well as our mature before and after sales services. We'd like to share our ideas with you and welcome your comments and questions.
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