
Crusher Duty Motors

Crusher duty motors are electric motors that are specifically designed to handle the high-stress and harsh operating conditions of rock crushing equipment and other similar heavy-duty applications. These motors are built to withstand the extreme loads and vibrations that are generated during the crushing process, and are typically more robust and durable than standard electric motors. Crusher duty motors are used in a wide variety of applications, including cone crushers, jaw crushers, hammer crushers, impact crushers, and more. They are often used in mining, quarrying, and other aggregate production operations, as well as in industrial processing applications where heavy-duty motors are required.
One of the key features of crusher duty motors is their high starting torque, which enables them to quickly and efficiently start up and drive heavy loads. They also typically have larger shafts and bearings than standard electric motors, which allows them to handle higher radial and axial loads. Crusher duty motors may also offer other features that make them well-suited for heavy-duty applications, such as built-in thermal protection to prevent overheating, corrosion-resistant coatings to withstand harsh environments, and easy-to-access terminal boxes for simplified maintenance.
Products
Motor starters safely start and stop a motor in industrial applications. They are designed with a contactor, overload and circuit protection. They are used when basic motor control is required, where torque on the motor is not a concern and speed control is not needed. The advantages of motor starters include: lower cost, allows for remote operation, allows for monitoring of motor state (with the use of auxiliary contacts) and they are safe and efficient. The disadvantages include: high inrush current that can cause fuses to blow and breakers to trip if the inrush is too high, and the starter will allow a full torque to start the motor which can cause the motor to ramp up to full speed very quickly potentially causing the motor to wear and degrade prematurely.
Soft starters protect motors from inrush current by gently ramping up the motor to full speed. They provide all of the same functions as a traditional motor starter. The advantages of soft starters include: they are less expensive than a VFD when only startup control is needed, they are a smaller system than a VFD where space is a concern and they prevent unwanted torque upon startup, prolonging the life of the motor. The disadvantages include: they are more expensive than a traditional motor starter and they do not allow for full speed control.
Variable Frequency Drives (VFDs) allow for the slow ramp up of a motor during startup and the slowing down of the motor during shutdown. They also allow for full speed control during the entire run cycle of the motor. VFDs provide the same functions as both the traditional motor starters and soft starters. The advantages of VFDs include: full speed control (start, stop and in-between), more custom control and monitoring, energy savings due to efficient motor usage and less wear and tear on the motors. The disadvantages include: they are more expensive and larger than other motor control options and they generate heat that may require fans or AC units.