1. Catalogs
  2. STROMAG
  3. Electromagnetic Spring Applied Brake BZFM V7

Electromagnetic Spring Applied Brake BZFM V7

Electromagnetic Spring Applied Brake BZFM V7

Electromagnetic Spring Applied Brake BZFM V7

Product catalog summary
Overview: The document provides detailed technical specifications and operational guidelines for the BZFM V7 Electromagnetic Spring Applied Brake by Stromag Dessau, designed for mounting on standard electric motors as a general industrial brake.
Standard Features: The brake includes a coil body with thermal class 155 protection, zinc-coated friction lining carrier, axially flexible friction pads, and nitrocarburated armature plate and brake disc. It also features an adjusting ring for torque reduction and zinc-coated fixing screws.
Optional Extras: Options include a hand release lever, micro switches for monitoring switching states and wear, and various switching modules such as half wave, full wave, and quick switching units.
Applications and Advantages: The brake offers a torque range of 2.7 - 380 Nm, simple assembly, corrosion-resistant surfaces, and high heat capacity. It is delivered pre-mounted and adjusted, with simple torque adjustment capabilities. It is suitable for vertical mounting and provides reliable performance with IP 44 protection.
Voltage and Coil Options: Standard voltages include 24 V DC, 103 V DC, 190 V DC, 207 V DC, and 240 V DC, with other voltages available on request. Coils are available for AC supplies with half and full wave rectification.
Brake Operation: The brake operates as a spring-loaded electromagnetic double-face brake, engaging without current and releasing electromagnetically. The coil, when excited, releases the armature disc, cancelling the braking effect.
Micro Switch and Brake Termination: Micro switches are available for sizes 6.3 to 25, with options for interlocking with motor contactors. Flyaway leads are typically 0.5 meters long, and care must be taken to prevent back-driving in AC motor applications.
Emergency Release and Adjustments: An optional hand release lever allows manual brake release. The adjusting ring allows torque reduction, and adjusting screws enable airgap re-adjustment.
Calculations: The document provides formulas for calculating full load torque, maximum stops per hour, and stopping time, with examples illustrating these calculations.
Permissible Heat Capacity: A graph illustrates permissible switching operations per hour at 3000 rpm for various brake sizes.
Contact Information: Stromag Dessau GmbH, Dessauer Str. 10, D-06844 Dessau-Roßlau, Germany. Tel: +49 (340) 2190-203, Fax: +49 (340) 2190-201, Email: [email protected], Website: http://www.stromag-dessau.de
See more

Catalog excerpts

Electromagnetic Spring Applied Brake BZFM V7-1

Stromag Dessau safety in motion BZFM V7

 Open the catalog to page 1
Electromagnetic Spring Applied Brake BZFM V7-2

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 Stromag Dessau safety in motion Applications Brake series for mounting to standard electric motors as general industrial brake. Standard Features Coil Body with coil thermal class 155 (F), special surface protection Friction lining carrier Rigidly fixed on motor shaft via fitting key, zinc coated Friction Lining Axially flexible friction pads in the friction lining carrier allow a high tolerance when fixing friction lining carrier on the shaft thus simplifying the mounting on brake assembly Adjusting Ring a simple reduction of the...

 Open the catalog to page 2
Electromagnetic Spring Applied Brake BZFM V7-3

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 Stromag Dessau safety in motion Advantages Torque range 2,7 -380 Nm. Simple assembly to motor, no dismantling of brake required. Completely pre-mounted and adjusted. All surfaces are corrosion resistant. Compact, simple construction with high heat capacity. The fitted friction pads form an interrupted friction face thus resulting in good air circulation and heat dissipation. Less wear due to high stability of the friction material. Delivered in run-in and torque tested condition. Simple torque adjustment with adjusting ring. As a standard,...

 Open the catalog to page 3
Electromagnetic Spring Applied Brake BZFM V7-4

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 Stromag Dessau safety in motion Designation of individual components 01 06 05 07 12 04 13 02 03 14 01 02 03 04 05 06 07 12 13 14 Coil body Armature disc Brake disc (counter friction face) Friction lining carrier Friction lining Coil Spring Adjusting ring Seal ring Rubber collar Brake operation The brake BZFM V7 is a spring loaded electromagnetic double-face brake which brakes without current and is released electromagnetically. The coil body (01) contains a coil (06) which is potted with an synthetic resin compound in accordance with...

 Open the catalog to page 4
Electromagnetic Spring Applied Brake BZFM V7-5

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 Stromag Dessau safety in motion If the coil (06) is connected to a direct voltage as specified on the identification plate or about a Stromag rectifier set to a alternating voltage, the magnetic force will draw the armature disc (02) to the coil body (01) against the spring pressure (07). The friction lining is released, the braking is cancelled and the brake is released. Micro Switch standard option available from size 6,3 up to 25, Inboard Proving Switch, one common contact, one normally open contact and one normally closed contact....

 Open the catalog to page 5
Electromagnetic Spring Applied Brake BZFM V7-6

manual release BZFM 0.25 up to 6.3 manual release BZFM 10 up to 25 Manual release as option Lage KabelanschluR position of manual release Lage Handluftung leverfloosly attached part) setting dimension setting dimension Nach Anbau der Bremse entfernt werden Bei Abweichung von der skizzierten Form ist das MaRblatt sinngemaR anzuwenden! At deviation from drawing it is apply synonymously! mounting srews! After mounting of the brake 1) Pafifedernut nach DIN 6885 Blatt 1 2) L2 unter Berikksichtigung des axialen Spieles L2 with consideration of the axial interplay With reduction of nominal torque of...

 Open the catalog to page 6
Electromagnetic Spring Applied Brake BZFM V7-7

Electromagnetic Spring Applied Brake Protection IP 44 Stromag Dessau BZFM V7 safety in motion Calculations Full Load Torque Load torque Torque Power Constant Speed = = = = = = FLT Nm Nm kW 9550 rpm Initial Torque, size of brake = FLT x Factor (25% - 200%) Calculating Maximum Stops per Hour using Braking Tables Example: Motor J ML MSN = = = = 4 kW; 3000 rpm 2 Total inertia of Load + motor = 0,0245 kgm Load Torque = 20 Nm Brake Torque = 100% FLT 4 x 9550 3000 = kW x 9550 = rpm Motor FLT 12.7 Nm = Brake selection = BZFM 10 V7 (113 Nm) 2 = Jxn 182000 = 0,0245 x 3000 182000 = KJ per switching 1,21...

 Open the catalog to page 7
Electromagnetic Spring Applied Brake BZFM V7-8

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 Stromag Dessau safety in motion Permissible Heat Capacity Switching operations per switching in relation to the number of switchings W = f(z) for n = 3000 rpm * * Switching operations W in kJ 100 10 BZFM 25 V7 1 BZFM 16 V7 BZFM 10 V7 BZFM 6,3 V7 BZFM 4 V7 BZFM 2,5 V7 BZFM 1,6 V7 BZFM 0,63 V7 BZFM 0,25 V7 0,1 1 10 100 1000 operations per hour z in h-1 * * permissible switching operations per switching at other speed ratings on request Spring Applied Brake BZFM V7 – 01.06.2009 6

 Open the catalog to page 8
Electromagnetic Spring Applied Brake BZFM V7-9

Electromagnetic Spring Applied Brake Protection IP 44 BZFM V7 safety in motion Our Address Stromag Dessau GmbH Dessauer Str. 10 D-06844 Dessau-Roßlau Tel.: +49 (340) 2190-203 Fax: +49 (340) 2190-201 E-Mail: [email protected] Internet: http://www.stromag-dessau.de Spring Applied Brake BZFM V7 – 01.06.2009 Stromag Dessau 7

 Open the catalog to page 9

All STROMAG catalogs and technical brochures

  1. 4 BZFM Brake

    16  Pages

  2. NFF Brake

    16  Pages

  3. Disc Coupling

    36  Pages

  4. Two-in-one 1

    4  Pages

  5. Two-in-one 2

    4  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.