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Brake Motors,Brakes,Rectifiers

DZM0.5 DC electromagnetic brake

DZM0.5 DC electromagnetic brake

Affiliate classification
technical parameter
Shape and installation dimensions
Installation and commissioning
Common failures and troubleshooting

Product Brief

DZM series DC electromagnetic brake is a reliable and safe brake. The product has compact structure, convenient manual release, flexible, reliable performance, low noise, and IP44 protection level. It can effectively prevent dust, iron powder and iron scraps.

DZM series brake and Y2 series motor form YEJ series electromagnetic brake three-phase asynchronous motor. The motor has beautiful appearance, fast braking, accurate positioning, and is suitable for all occasions of motor use.

This series of products have obtained the certificate of ISO 9001 system.


Working principle

When electrified, the electromagnet produces strong electromagnetic force to suck up the armature plate to compress the brake spring. The two dual faces of the brake disc are separated from the pressure of the armature plate and the plane of the back cover of the motor, and the motor can rotate flexibly. When the power is cut off, the brake spring pressure is applied to the armature plate to tighten the brake disc and produce strong friction braking moment, which makes the rotating motor brake quickly and achieve accurate positioning.


Product characteristics

1. After assembling this series of products and motors, the overall protection level reaches IP44, which is higher than the requirements of JB/T6456 industry standard.

2. The braking moment is higher than the requirement of JB/T6456 industry standard.

3. Manual release external device, flexible and convenient (DZM02 without manual release);

4. The insulation grade is F.


Supplies of Matching Parts and Components

For the convenience of customers to use DZM series DC electromagnetic brake, our company not only provides matchable rear cover, junction box, windshield, rectifier and sealing ring accessories, but also provides the corresponding specifications of the rotor shaft processing drawings, as long as processing according to our company's drawings, you can produce YEJ series brake motor.

Corresponding parameter set not found, please add it in property template of background



2. Requirements for Air Gap Value of Brake


3. Inspection of air gap

As shown in the schematic diagram, the distance between armature plate 7 and electromagnet 9 is called air gap (delta). Normal working air

gap (delta) does not exceed the specified maximum working air gap value. The motor is adjusted when it leaves the factory.

After running for a period of time, the air gap (delta) increases due to friction wear, which will affect the normal suction and braking effect of the

brake, so it will be used for a period of time in the motor.After that, the size of plug must be selected according to the maximum air gap value,

and the size of air gap (delta) must be checked. When inspecting, the selected size of the plug ruler can be directly inserted into the air gap

(delta), if it is inserted, indicating the air gap.(delta) is too large and must be adjusted.


4. Air Gap Adjustment

DZM02-80 adjustment method: as shown in the structure sketch, the thickness of plug gauge is selected according to the specified initial

working air gap value, the hexagonal nut 23 is loosened, the inner hexagonal screw 26 is loosened, and the expenditure support adjustment

screw is loosened.Screw 24, select the size of the plug ruler, insert it into the air gap (delta) next to the loosened support adjustment screw 24,

slowly screw into the inner hexagonal screw 26, press the plug ruler, and then tighten the support adjustment screw 24.End cover 2 plane, pull

out plug ruler. Fixed screw 26 has three groups. The air gap values on the edges of the three groups of screw must be adjusted to the initial

working air gap values according to the above methods. The air gap values at three places must be uniform and finally rotated.Tight nut

23.DZM160-900 adjustment method: as shown in the structure sketch, the thickness of plug gauge is selected according to the specified initial

working air gap value, the fixed screw 26 is loosened, the adjusting screw sleeve 18 is loosened, and the plug gauge is put into the loosened

position.Expenditure support adjustment screw 18 next to the air gap (delta), slowly into the hexagonal screw 26, tighten the plug ruler, and

then support adjustment screw 18 top cover 2 plane, pull out the plug ruler. Internal hexagonal screw 26 hasSix groups, according to the

above method, the air gap on the edge of three sets of fixed screw divided 120 degrees must be adjusted to the initial working air gap value.

The three air gap values must be uniform, and then the other three groups of fixed screw should be adjusted next to each other.The air gap

(delta) is tightened and the inner hexagonal screw 26 and the support adjusting screw sleeve 18 are tightened.The adjusted air gap should be

checked again with a plug ruler to prevent the unevenness of the air gap. If there is no standard plug gauge for air gap adjustment, it can be

replaced by similar thick and thin iron sheet.

Serial number

Fault phenomenon

Examination site and method







Brake does not suck

(1) Check whether the air gap exceeds the maximum value of air gap;

(2) Measuring the resistance of the excitation coil with a multimeter, whether the line is broken or not.

(3) Whether the DC output power of rectifier is normal or not;

(4) Whether the connection of the lead-out wire of the brake is loose or not;

(5) The brake has been used for a long time, and the air gap is blocked by dust on the surface of armature electromagnet.


(1) If the air gap has exceeded, the air gap will be readjusted.

(2) Repairing or replacing yokes with broken wires;

(3) Replacement of rectifiers;

(4) Re-tightening;

(5) After disassembly, remove foreign bodies on the surface;




Brake failure and brake failure

(1) The friction disc wears, the working clearance increases and the torque decreases.
(2) Friction disc damage;
(3) Load inertia is too large to exceed braking moment.
(1) Re-adjusting the gap;
(2) Replacement of new friction discs;
(3) Re-selection. ;


When released manually, the rotating shaft does not move.

(1) The air gap is not uniform and the armature, brake disc and electromagnet are stuck.

(2) The friction disc is adhered to by oil (from the gearbox or elsewhere).

(3) The brake is not used for a long time, and the flat friction disc of the motor end cover is rusty.


((1) Re-adjusting air gap;

(2) Remove the friction disc and wipe it dry before assembling.
(3) After disassembly, the rust spots can be removed and reassembled to work normally.


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