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YP21-500-560*30 Series Electro-hydraulic Disc Brakes
The YP21 - 500 - 560*30 is a member of the YP21 series electro - hydraulic arm disc brakes. The model can be roughly interpreted as follows: YP21 represents the series of electro - hydraulic arm disc brakes; 500 may refer to the matching brake disc diameter; 560 is likely an auxiliary size...
Description
The YP21 - 500 - 560*30 is a member of the YP21 series electro - hydraulic arm disc brakes. The model can be roughly interpreted as follows: YP21 represents the series of electro - hydraulic arm disc brakes; 500 may refer to the matching brake disc diameter; 560 is likely an auxiliary size parameter related to the installation and adaptation; and 30 indicates the thickness of the brake disc. It is widely used in heavy - duty industrial scenarios that require stable braking performance. The following is a detailed introduction to it:
Core Specifications
| Parameter | Value |
|---|---|
| Brake disc size | The thickness is 30mm, and the matching disc diameter is around 500mm (consistent with the model implication) |
| Rated braking torque | 935 - 2750 N·m (belonging to the torque range of the YP21 series) |
| Brake clearance | 0.8 - 1 mm |
| Matched thruster | ED500 - 60 or ED800 - 60 |
| Brake lining | Non - asbestos copper - based powder metallurgy material, which is suitable for high - temperature and heavy - load working conditions |
| Operating ambient temperature | -20 °C to +50 °C |
| Relative humidity | ≤90% |
| Weight | About 105 - 106 kg |
| Power supply requirements | Generally applicable to three - phase AC power supply of 50Hz and 380V |
Key Structural and Performance Advantages
Low maintenance workload: It is equipped with an interlocking clearance equalization device to ensure that the clearance of the brake shoes on both sides is always equal without manual adjustment during use. The brake lining wear automatic compensation device can keep the shoe clearance and braking torque constant, avoiding the trouble of frequent manual adjustment. In addition, the main swing hinges are all self - lubricating and do not need additional lubrication maintenance.
High safety and reliability: It can be equipped with release, closure and wear limit switches. These switches can send signals to the host PLC to realize functions such as fault display and lining wear reminder, and provide interlock protection signals for the main equipment. Meanwhile, its pins and fasteners are made of stainless steel or undergo special surface treatment, which has strong corrosion resistance and long service life. Under correct maintenance, its service life can be no less than 10 years.
Stable braking effect: It adopts ED series thrusters with delay valves. This design enables the brake to achieve delayed closing, effectively reducing the impact during braking and making the braking process more stable. Moreover, the non - asbestos brake lining has a stable friction coefficient, which further ensures the stability of the braking effect.
Convenient operation and maintenance: It is equipped with a manual opening device, which facilitates the installation and maintenance of the brake, and can also release the brake in emergency situations. The non - asbestos brake lining is of plug - in type, which is quick and convenient to replace when it is worn to the limit.
Typical ApplicationsThis type of brake is suitable for deceleration, parking braking and safety protection of large mechanical equipment. It is often used as supporting equipment for cranes, such as bridge cranes and gantry cranes. Besides, it can also be applied to mechanical equipment in industries like metallurgy, mining, and port loading and unloading, to meet the braking needs of heavy - duty and high - frequency operation conditions of related equipment.
Basic Maintenance Suggestions
Daily inspection: Check whether the limit switches can send signals normally, observe if there is oil leakage in the thruster and the brake hydraulic system, and clean the dust and debris on the surface of the brake disc and brake lining.
Regular periodic inspection: Every 3 - 6 months, inspect the wear degree of the brake lining. If the wear is serious and affects the braking effect, replace it in time. Check the elasticity of the brake spring and the tightness of stainless steel pins and fasteners.
Special environment maintenance: If it is used outdoors or in an environment with corrosive gas, pay attention to the anti - corrosion maintenance of the brake shell. When the temperature is lower than -20 °C, replace the working oil of the thruster with YH - 10 aviation hydraulic oil or install a heater for the thruster.
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