The design and calculation of braking torque of pliers disc brake and disc brake of engineering machinery are introduced in the paper.

• 针对钳盘式制动器和片式制动器各自的优点,详细介绍了它们的制动力矩的设计计算,以及对制动器摩擦片进行耐压、耐磨损的温升等验算。