Magnetic patricle brake MPB - Kern Antriebstechnik · D-88046 Friedrichshafen db_MPB_en 11/2019...
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Technical data sheet Magnetic particle brake Kern Antriebstechnik GmbH Tel.: +49 (0)7541-5016-0 Mail: [email protected] Seite 1 von 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019 Magnetic patricle brake MPB Effect of the magnetic particle brakes To create a moment, a DC voltage must be applied to the component. The resulting moment is proportional to voltage. There is an air gap between the rotor and the housing. In this air gap, a special abrasion-resistant iron powder is filled. In the housing a coil is installed. This coil generates a magnetic field as a function of the applied voltage. In this magnetic field, the iron powder is aligned and forms chains. These chains transmit the moment between housing and rotor. The higher the current (voltage) the longer and more stable the powder chains become and the more moment can be transferred. When the transmittable torque is exceeded, slip occurs between the housing and the rotor. The brakes are designed for continuous slip. However, the permissible slip power must not be exceeded. Before using the brake, the required slip power must be calculated and compared with the data sheet. Too high average slip power overheats the brake and can damage the brake Field of application Brake and over load protection applications Applications where an adjustable torque is required Advantages and properties Torque is easy to adjust and control High running smoothness at low speed Easy and repretable to control Fast and easy to mount Almost wear and maintenance free Compact dimensions
Transcript of Magnetic patricle brake MPB - Kern Antriebstechnik · D-88046 Friedrichshafen db_MPB_en 11/2019...
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Tel.: +49 (0)7541-5016-0 Mail: [email protected] Seite 1 von 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Magnetic patricle brake MPB
Effect of the magnetic particle brakes To create a moment, a DC voltage must be applied to the component. The resulting moment is proportional to voltage. There is an air gap between the rotor and the housing. In this air gap, a special abrasion-resistant iron powder is filled. In the housing a coil is installed. This coil generates a magnetic field as a function of the applied voltage. In this magnetic field, the iron powder is aligned and forms chains. These chains transmit the moment between housing and rotor. The higher the current (voltage) the longer and more stable the powder chains become and the more moment can be transferred. When the transmittable torque is exceeded, slip occurs between the housing and the rotor. The brakes are designed for continuous slip. However, the permissible slip power must not be exceeded. Before using the brake, the required slip power must be calculated and compared with the data sheet. Too high average slip power overheats the brake and can damage the brake
Field of application
Brake and over load protection applications
Applications where an adjustable torque is required
Advantages and properties
Torque is easy to adjust and control
High running smoothness at low speed
Easy and repretable to control
Fast and easy to mount
Almost wear and maintenance free
Compact dimensions
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 2 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Technical data unit MPB10 brake
Rated Current A 0,5
Rated Voltage V DC 24
Max. torque Nm 10*
Torque at zero current Nm <0,5
Max. speed (with heat sink) U/min 480 (1650)
Max. power loss (with heat sink)** W 25 (85)
Inertia Kgm² 0,225 x 10-3
Weight (with heat sink) kg ca. 2,5 (ca. 3,0)
All values at 20°C *Value for torque are minimum value, tolerance of all other values are +/-10% **Power loss must not be exceeded
Curve torque permitted power
Please note: Speeds and torques above the line for the selected brake can only be used for a short time. Continuous operation above the line causes an overheating and a failure of the component.
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torque / permitted power MPB 10
MPB / K 10 MPB / K 10 mit Kühlkörper, with heat sink
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 3 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Drawing brake MPB10
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 4 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Technical Data Unit MPB25 brake
Rated current A 0,8
Rated voltage V DC 24
Max. torque Nm 25*
Torque at zero current Nm <0,7
Max. speed (with heat sink) U/min 550 (1650)
Max. power loss (with heat sink)** W 40 (120)
Inertia Kgm² 0,5 x 10-3
Weight (with heat sink) kg ca. 4,0 (ca. 5,6)
All values at 20°C *Value for torque are minimum value, tolerance of all other values are +/-10% **Power loss must not be exceeded
Curve torque permitted power
Please note: Speeds and torques above the line for the selected brake can only be used for a short time. Continuous operation above the line causes an overheating and a failure of the component.
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torque / permitted power MPB 25
MPB / K 25 MPB / K 25 mit Kühlkörper, with heat sink
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 5 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Drawing brake MPB25
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 6 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Technical data unit MPB50 brake
Rated current A 1,3
Rated voltage V DC 24
Max. torque Nm 50*
Torque at zero current Nm <1,5
Max. speed (with heat sink) U/min 380 (1250)
Max. power loss (with heat sink) W 60 (200)
Inertia Kgm² 2,5 x 10-3
Weight (with heat sink) kg ca. 7,6 (ca. 10,1)
All values at 20°C *Value for torque are minimum value, tolerance of all other values are +/-10% **Power loss must not be exceeded
Curve torque permitted power
Please note: Speeds and torques above the line for the selected brake can only be used for a short time. Continuous operation above the line causes an overheating and a failure of the component.
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Dre
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Drehzahl, Speed [U/min]
torque / permitted power MPB 50
MPB / K 50 MPB / K 50 mit Kühlkörper, with heat sink
Technical data sheet Magnetic particle brake
Kern Antriebstechnik GmbH Fon.: +49 (0)7541-5016-0 Mail: [email protected] page 7 of 7 Gutenbergstraße 11 Fax: +49 (0)7541-5016-28 Web: www.kern-motion.com D-88046 Friedrichshafen db_MPB_en 11/2019
Drawing brake MPB50
Assembly: It is important to mount all magnetic particle brakes with
horizontal shaft.
Drawings and data are for customer information only. For specific indication a separate quote is required. Kern Antriebstechnik is not responsible for
errors in data sheets. Subject to technical modifications. All goods and trademarks of this data sheet are property of Kern Antriebstechnik GmbH.
