WhatsApp: +8619037303916
Email: [email protected]
WhatsApp: +8619037303916
Email: [email protected]
Safety braking is mainly used for middle and large crane, hoisting mechanism of port cargo handling machinery, mine hoist, winch, belt conveyor, and cable cars etc.. Especially the safety brake for casting crane and low-speed-shaft on other mechanism. When the working brake is failed or drive shaft, gear and other parts of drive system is failed, it can be used as emergency safety braking.
The crane safety brake mainly includes hydraulic type and electromagnetic 2 types. Their main comparative data are shown in the following table.
|
Index |
Hydraulic brake SBD100 |
Electromagnetic safety brake AP75/30 |
|
Braking principle |
Oil pressure release is provided by hydraulic station, and friction braking is applied by spring |
When no accident occurs to the lifting object, the brake only slightly clamps the brake disc. When an accident occurs, driven by the clamping friction, the two wedge-shaped sliding blocks enter the dovetail groove by the inertial self-locking brake to clamp the brake disc. |
|
Brake opening power source |
Hydraulic station |
Electromagnetism |
|
Installation and commissioning |
Complex installation, including oil pipe, oil valve, etc |
Simple installation |
|
Weight |
Dead weight 230kg |
Dead weight 50kg |
|
Energy consumption |
1500w |
10w |
|
Braking force |
73Kn |
75Kn |
|
Maintain |
There is oil leakage and regular maintenance is required |
No hidden danger of oil leakage, no maintenance of oil pipe and hydraulic station |
|
Security |
Commonly |
High |
|
Applicable temperature |
There are restrictions on temperature and obstacles to ultra-low temperature operation |
Can be used at ultra-low temperature |
|
Volume |
With hydraulic station, it is large and takes up space |
Compact size, not occupying space |
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