JDZ series AC electromagnetic power-off brakeDetailed product description：

I. Purpose
The JDZ series electromagnetic power-off brake is an AC friction electromagnetic brake (hereinafter referred to as the brake) that disengages (releases) when powered on and applies spring pressure when powered off. It is mainly matched with Y series motors to form a new type of YEJ series electromagnetic braking three-phase asynchronous motor. Widely used in metallurgy, construction, chemical industry, food, machinery, packaging, textile, transportation ships and other machinery to achieve fast parking and accurate positioning, and can be used in situations such as safe (risk prevention) braking during power outages. This type of brake has fast braking time, compact structure, easy installation, and wide adaptability; High work frequency, sensitive movements, and reliable braking; It has the advantages of convenient wiring and no need for rectifiers, making it an ideal automation control execution component.

2、 Usage conditions
The brake can work reliably under the following conditions:
2.1 The altitude shall not exceed 1000m.
2.2 The maximum ambient air temperature shall not exceed 40 ℃, and the minimum temperature shall be -15 ℃.
2.3 The relative humidity of the surrounding air shall not exceed 90%.
2.4 There are no gases or dust in the surrounding medium that severely corrode metals or damage insulation.
The rated voltage with voltage fluctuations not exceeding+5% and -15% shall operate continuously. The insulation level of the brake coil is Class B.  
3、 Structural working principle
The brake is composed of a magnetic yoke, excitation coil, spring, brake disc, armature, gear sleeve, mounting plate, manual release device, mounting screw, etc. The brake is installed on the rear cover of the motor (or on the flange of the equipment), and the installation screw is adjusted to the specified air gap value. The gear sleeve is fixed on the shaft, and its outer teeth cooperate with the inner teeth of the brake disc to transmit torque during operation. The brake disc can move axially on the gear sleeve.
When the excitation coil of the brake is energized, the coil generates a magnetic field that attracts the armature towards the magnetic yoke, causing the armature to detach (release) from the brake disc. At this point, the drive shaft starts and operates normally with the brake disc; When the coil loses power, the magnetic field disappears, and the spring applies pressure to the armature, compressing the friction plate on the brake disc and generating friction to achieve the braking purpose.
The brake system has a customized power torque of 08; 15；30； 40；80； 160； 200 specifications to meet the requirements of YEJ motor standards, and other specifications can be designed and produced according to user needs.

Technical parameters of JDZ series AC electromagnetic power-off brake

	JDZ-08	JDZ-15	JDZ-30	JDZ-40	JDZ-80	JDZ-160	JDZ-200
Rated braking torque Me（N.m）	eight	fifteen	thirty	forty	eighty	one hundred and sixty	twenty
Excitation Power P20℃（W）	forty	fifty	sixty	sixty	sixty-five	seventy	ninety
Connection time (ms)	sixty	sixty-three	eighty-seven	one hundred and ten	one hundred and thirty	one hundred and forty	one hundred and fifty
Disconnecting time (ms)	fifty	fifty-five	seventy-five	ninety-five	one hundred and twenty	one hundred and thirty	one hundred and forty
Excitation voltage AC (V)	380V    50HZ
Maximum allowable working speed n (r/min)	three thousand

Note: A brake with a voltage of 220V and 60HZ can be designed for users, and the insulation level can be separately designed as F and H levels

D

D1

D2

D3

D4

D5

d

b

h

L

L1

B

B1

B2

D6

M

B3

δ

JDZ-08

one hundred and fifty-two

one hundred and thirty-six

twenty-five

twenty-five

sixty-five

ninety-two

nineteen point eight

six

twenty-one point six

twenty

three point five

sixty point four

one hundred and eighty-four

ten

eleven

3-M8

seventy-five

zero point four

JDZ-15

one hundred and sixty-two

one hundred and forty-six

twenty-eight

thirty

sixty-five

ninety-seven

twenty-four point eight

eight

twenty-eight point one

twenty-five

three point five

seventy-four point five

two hundred

ten point five

eleven

3-M8

ninety

zero point four

JDZ-30

one hundred and eighty-eight

one hundred and sixty-eight

sixty

fifty-five

eighty

one hundred and sixteen

twenty-nine point five

eight

thirty-two point eight

twenty

three

seventy-six point five

two hundred and thirty-one

eleven

twelve

3-M12

ninety-seven

zero point five

JDZ-40

two hundred and fourteen

one hundred and eighty-five

forty-eight

sixty

ninety

one hundred and thirty

twenty-nine point five

eight

thirty-two point eight

thirty

three

eighty-five point five

two hundred and forty

eleven

twelve

3-M12

one hundred and four

zero point five

JDZ-80

two hundred and forty

two hundred and ten

forty-five

forty-six

one hundred and four

one hundred and fifty

thirty-nine point five

twelve

forty-two point eight

thirty

three

ninety-one point five

two hundred and eighty-three

eleven

thirteen

3-M14

one hundred and twelve

zero point five

JDZ-160

two hundred and eighty-five

two hundred and fifty-five

seventy

sixty-eight

one hundred and twenty

one hundred and seventy-nine

forty-four point five

twelve

forty-seven point eight

thirty-five

four

one hundred and four point five

three hundred and thirty-eight

twelve point five

fifteen

3-M14

one hundred and twenty-seven

zero point six

JDZ-200

three hundred and thirty

three hundred

one hundred and eighteen

one hundred

one hundred and fifty

two hundred and twenty

forty-nine

fourteen

fifty-two point eight

forty

three point five

one hundred and ten

three hundred and ninety-four

sixteen point five

seventeen

3-M14

one hundred and thirty-two

zero point eight

Instructions for use: This brake is a dry type and must operate in an oil-free state to avoid affecting torque; When installing the brake, first adjust it to the specified working air gap δ value and make the air gap uniform, then tighten nut 6 tightly on the motor end cover; The brake should be installed horizontally and not vertically; The δ value of the brake should not exceed the maximum working air gap, otherwise it should be readjusted to the specified value.