Pulley Winch Brake Disk

1) Core material parameters:
     The most commonly used material for brake discs is gray cast iron HT250, with specific parameter requirements specified
     Key chemical components: Carbon C (3.1~3.4)%, Silicon Si (1.9~2.3)%, Manganese Mn (0.6~0.9)%
     Mechanical properties: Tensile strength ≥ 206MPa, flexural strength ≥ 1000MPa, deflection ≥ 5.1mm, hardness 187~241HBS
     Special working conditions can also use alloy cast iron with added Cr and Ni to enhance durability. 

     In high-end scenarios, ceramic or high carbon dual aluminum alloy materials are selected to balance lightweight and high temperature resistance.
2) Advantages of disc structure:
     Compared to traditional block brakes, disc brake discs have obvious advantages: strong heat dissipation ability, no thermal degradation phenomenon, and stable braking performance; 

     The adjustable range of braking torque is large, and the braking is smooth and reliable;
     Good dust and water resistance, easy to throw away dirt, only 1-2 brakes are needed to restore performance after getting wet, good heat dissipation, very suitable for the frequent braking needs of crane trolleys.
3) Characteristics:
     The braking unit is integrated into the built-in module of the reducer, and the car braking is mainly electric braking. The mechanical braking only operates when the operating speed is less than 3% of the rated speed, which can reduce excessive wear on the brake disc. 

     The reducer also has a manual brake release function, which is convenient for maintenance and repair.
     The braking unit of the operating mechanism of gantry cranes is mostly a small disc brake, with short axial dimensions and compact structure. 

     The brake end cover is shared with the motor, and the components are concentrated, making maintenance and replacement more convenient.
4) General structure diagram:

5) Technical data:

     Note: Please prioritize using the ▲ symbol before the numerical value. Various non-standard brake discs can be produced according to user needs.