Industrial Hoist Drum Brake

 

YWZ4 Industrial Hoist Drum Brake

 

 

standards compliant

The dimensions and braking torque parameters of YWZ4 Industrial Hoist Drum Brake series Brake comply with JB/ZQ4388-2006 standard, technology requirements comply with JB/T6406-2006 standard.

 

main feature

• Safe and reliable performance, smooth braking, high action frequency.
• Main hinge points are equipped with self-lubricating bearing, making high efficiency of transmission, long ser vice life.Lubricating is unnecessary during operation.
• Interlocking shoe clearance balancing device and shoe auto-aligning device constantly equalize the clearance of brake shoes on both sides and make adjustment unnecessary,completely avoiding brake lining one side sticking to brake wheel.
• The non asbestos brake pad and the brake pad adopt the clamping plug-in type. It is safe and reliable, convenient and quick to replace.

 

operating condition

• Ambient temperature:-20℃~+40℃
• Flammable, explosive and corrosive gases are not allowed in the surrounding working environment,otherwise anti-corrosion products should be used.
• Relative humidity:the relative humidity of the air is not more than 90%
• The altitude of the place of use shall not exceed 2000m
• Operating duty:intermittent (S3-60%) and continuous(S1).
• Voltages: three-phase AC, rated voltage is 380V~460V,frequency is 50Hz/60Hz.
• Special requirements can be discussed before production.

 

Industrial Hoist Drum Brake Outline And Installation Dimension

                                                     

                                              Additional Functions

Function code	Model Significance
K1	Opening limit travel switch
K2	Closing limit travel switch
K3	Pad wear limit display switch

Technical data and dimensions of YWZ4 Industrial Hoist Drum Brake 

Brake type	Thruster type	Brake torque (Nm)	Clearance (mm)	Dimensions(mm)															Weight(mm)
				A	b	C	D	d	E	F	G1	G2	H	h1	i	K	M	n
YWZ4-100/B18	BYT1-18Z/2	40	0.6	269	70	137	100	13	125	75	125	125	384	100	40	110	138	6	25
YWZ4-150/B25	BYT1-25Z/4	100		307	90	154	150	17	173	100	170	170	437	140	60	150	138	8	33
YWZ4-200/B25	BYT1-25Z/4	200	0.7	347	90	154	200	17	210	100	195	195	440	170	60	175	156	10	42
YWZ4-300/B25	BYT1-25Z/4	320		447	140	154	300	22	281	130	280	280	592	240	80	250	200	12	73
YWZ4-300/B45	BYT1-45Z/5	630		459		178							600					10	80
YWZ4-400/B45	BYT1-45Z/6	1000	0.8	564	180	178	400	22	370	180	360	360	735	320	130	325	265	12	130
YWZ4-400/B90	BYT1-90Z/8	1600		580		210							740						160
YWZ4-400/B125	BYT1-125Z/10	2200		632	160	254							850				271		167
YWZ4-500/B90	BYT1-90Z/8	2500	0.8	670	200	210	500	22	440	200	415	415	890	400	150	380	310	16	210
YWZ4-500/B125	BYT1-125Z/10	2650		775		210							885						220
YWZ4-500/B180	BYT1-180Z/10	3000		692		254							940						235
YWZ4-600/B90	BYT1-90Z/8	3200	0.8	805	240	210	600	26	555	220	505	520	1082	475	170	475	390	18	430
YWZ4-600/B180	BYT1-180Z/12	5000		827		254
YWZ4-700/B180	BYT1-180Z/12	8000		957	280	254	700	34	705	270	580	600	1225	550	200	540	585	25	500
YWZ4-800/B180	BYT1-180Z/12	10000	0.8	1094	320	254	800	34	772	320	677	697	1417	600	240	620	510	25	720
YWZ4-800/B320	BYT1-320Z/12	12500		1155		375											675		885

 Note:The size of the specific type and structure should be retained.

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  👈YWZ4-500/E121

Common Faults and Troubleshooting

Weak Braking / Rolling Back: Brake pads worn too thin, main spring fatigue, brake drum contaminated with oil or out of round, insufficient H1 compensation travel.
Brake Not Releasing When Powered On: Actuator low on oil or oil degraded, motor burned out, missing phase in electrical circuit, hydraulic oil solidified at low temperatures.
Unusual Noise / Vibration: Uneven clearance between both sides causing one-sided friction, or pin shaft rusted and jammed.
Abnormal Heating: Clearance set too small, resulting in prolonged contact between brake shoes and drum during operation.

 

Maintenance Schedule

Weekly: Check pad wear thickness, for oil leakage, and ensure smooth operation of brake opening and closing.
Monthly: Inspect spring tension and pin tightness.
Quarterly: Check oil level to ensure it reaches 2/3 of the sight window.
Semi-annually: Replace hydraulic oil in the actuator (recommended ISO VG32 or N32 anti-wear hydraulic oil) and clean brake drum dust.
Replacement Criteria: Discard pads when wear exceeds 50% of original thickness; brake wheel temperature must not exceed 200°C.

 

If you want to know more about the product or have questions about the product, please contact us.

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