Description

ZWZ3 Series DC Electromagnetic Drum Brake

Purpose and Main Characteristics：

Widely applied to the deceleration and parking braking of mechanical drive units in lifting, transportation, metallurgy, mining, port and construction engineering sectors.
Its mounting dimensions and braking torque parameters comply with GB 6334-86, and technical specifications conform to JB/T 7685-2006.

Operating Conditions：

Ambient temperature: -25℃ ~ +40℃
Service altitude: ≤ 2000 m
Indoor use only, with relative humidity not exceeding 90%; or for outdoor use with rain and snow protection.
No flammable, explosive, corrosive, insulation-damaging gases or conductive dust in the vicinity of the brake.
Power supply voltage: DC 110 V or DC 220 V. For special voltage requirements, please confirm with our sales team when placing an order.

Model Designation

product-1082-217

product-1000-742

Main Technical Parameters and Overall Dimensions

Brake model	Braking torque (N.m)							A	b	C1 C2	d	D	E	F	G1 G2	H	h1	I	K	M	m	n	Brake shoe Retreat distance (Max)	S S (Max)	Weight (Kg)
	Parallel coil			Series coil
				60% rated current		40% rated current
	Power on continuity rate			Power on continuity rate
	25%	40%	100%	25%	40%	25%	40%
ZWZ3-400/400	1250	1000	500	1250	1000	800	500	540	160	140	22	400	320	140	310	670	280	100	270	357	355	12	1.5	2 3	208
ZWZ3-400/500	2000	1400	630	2000	1400	1250	710														438		1.75	2.3 3.5	216
ZWZ3-500/400	1250	1000	450	1250	1000	800	450	622	200	150	22	500	375	180	365	820	335	130	325	428	355	16	1.5	2 3	268
ZWZ3-500/500	2000	1600	710	2000	1600	1250	800														438		1.75	2.3 3.5	316
ZWZ3-500/600	3550	3150	1400	3550	3150	2500	1800														500		2	2.7 4	357
ZWZ3-630/500	2240	1800	800	2240	1800	1400	900	712	250	180	27	630	464	220	450	101	425	170	400	510	438	20	1.75	2.3 3.5	479
ZWZ3-630/600	5000	3550	1600	5000	3550	2800	2000														500		2	2.7 4	497
ZWZ3-630/700	6300	4500	2240	6300	4500	4000	2500														577		2.25	3 4.5	541
ZWZ3-710/600	5000	3550	1600	5000	3550	2800	2000	780	280	190 240	27	710	505	240	500 550	1125	475	190	450	622	500	22	2	2.7 4	520
ZWZ3-710/700	7100	5000	2240	7100	5000	4000	2800														577		2.25	3 4.5	580
ZWZ3-710/800	10000	7100	3550	0000	7100	5600	4000														650		2.5	3.3 5	646
ZWZ3-800/700	7100	5000	2500	7100	5000	4500	2800	870	320	180 270	27	800	590	280	555 645	1235	530	210	520	690	577	22	2.25	3 4.5	800
ZWZ3-800/800	10000	8000	3550	10000	8000	6300	4000														650		2.5	3.3 5	911

Note:

Electromagnetic coil specifications can be referred to in ZWZ Series DC Electromagnetic Brake Coil Parameters.
Specific models, structural designs and overall dimensions are subject to change without notice.

Technical Parameters of Parallel Coils

Model Name and Parameters Type of coil Voltage (V) JC%			ZWZ₃-400			ZWZ₃-500			ZWZ₃-600			ZWZ₃-700			ZWZ₃-800
			20℃ resistance (Ω)	※ power (W)	additional resistance (Ω)	20℃ resistance (Ω)	※ power (W)	additional resistance (Ω)	20℃ resistance (Ω)	※ power (W)	additional resistance (Ω)	20℃ resistance (Ω)	※ power (W)	additional resistance (Ω)	20℃ resistance (Ω)	※ power (W)	additional resistance (Ω)
I	110	40	14.15	630	6	12.6	725	5	9.6	940	4	6.85	1370	2.5	5.2	1740	2
	110	100		870	20		415	18		540	14		800	9.4		1010	7.3
	110 No additional resistance	25		900			1010			1330			1860			2400
	110 No additional resistance	40	20.8	580		15.6	780		12.3	985		9.95	1220
	220	25	14.15	1500	20	12.6	1700	18	9.6	2100	14	6.85	3200	9.4	5.2	3920	7.7
		40		1100	32		1230	29		1610	22		2400	15		2930	12
		100		660	63		765	54		990	42		1420	29		1710	24
	220 No additional resistance	25	49.8	970		45.4	1070		32.3	1500		25.1	1930
	220 No additional resistance	40	75	645		71.5	680		49.2	985		37.7	1285
	440	25	14.15	2680	58	12.6	3010	55	9.6	3950	42	6.85	5700	29	5.2	7170	23
		40		2070	84		2300	79		3010	58		4400	39		5460	32
		100		1270	146		1420	130		1840	100		2890	68		3320	49

Note: Power consumption of the coil and auxiliary resistor is measured at the rated voltage and a temperature of 20 °C.

Technical parameters of series coils

Model Name Type of coil	ZWZ₃-400				ZWZ₃-500				ZWZ₃-600				ZWZ₃-700				ZWZ₃-800
	Rated current (A)			20℃ resistance (Ω)	Rated current (A)			20℃ resistance (Ω)	Rated current (A)			20℃ resistance (Ω)	Rated current (A)			20℃ resistance (Ω)	Rated current (A)			20℃ resistance (Ω)
	JC 15%	JC 25%	JC 40%		JC 15%	JC 25%	JC 40%		JC 15%	JC 25%	JC 40%		JC 15%	JC 25%	JC 40%		JC 15%	JC 25%	JC 40%

Ⅱ	96.5	75	59	0.089	201	156	123	0.0285	209	162	128	0.0394	302	234	185	0.023	595	460	363	0.0075

Ⅲ	139	108	85.5	0.043	316	245	193	0.0115	300	233	184	0.019	715	555	438	0.0041	1355	1050	830	0.0014
IV	192	149	118	0.025	495	383	302	0.0074	510	395	312	0.00065	1175	910	720	0.0015
V	231	179	141	0.0174					630	490	387	0.00043

VI	268	208	164	0.0128

VII	346	268	212	0.0078

Product Overview

ZWZ3 Series DC Electromagnetic Drum Brake - Working Principle

Energized Operation：When the electromagnetic coil is energized, the electromagnetic force attracts the armature, which causes the brake linings to release the brake drum, allowing the drive shaft to run or start normally with the brake drum. When the current to the electromagnetic brake is cut off, the brake linings make contact with the brake drum, and friction torque is generated between the brake drum, brake linings and flange, causing the drive shaft to stop rapidly.

De-energized Braking Type：This brake adopts a structural design where a coil spring presses the brake linings to generate braking torque through friction. When the excitation coil is energized, the armature that presses against the brake linings compresses the coil spring and is attracted by the excitation core, putting the brake in a released state. When the excitation current is cut off, the elastic force of the coil spring pushes the armature to press against the brake linings, and the brake is engaged to perform braking.

Hot Tags: industrial electromagnetic drum brake, China industrial electromagnetic drum brake manufacturers, suppliers, factory

Industrial Electromagnetic Drum Brake