2S Soft Start: Ordinary angle grinders produce a large instantaneous current when starting, which not only easily burns the motor coil and triggers the circuit breaker, but also causes the body to "jerk", increasing the risk of instability. An angle grinder with a soft start function will gradually increase the motor speed from slow to fast through circuit control, starting more smoothly, protecting both the motor and the circuit, and enhancing the safety of operation.
Overload protection: Its function is to prevent the motor from burning out due to overloading. When the angle grinder is overloaded during grinding and cutting (such as forc advancing when cutting hard steel), the load current of the motor exceeds the rated value, and long-term overload will cause the temperature of the motor to rise sharply, burning the coil.
Overcurrent protection: The function is to deal with the emergency protection of large current in the circuit, and the overload protection is complementary. The overcurrent protection is aimed at sudden large current scene, such as motor winding short circuit, power line damage short circuit, voltage abnormally surge and so on, which will instantly produce far beyond the rated of the current, which may cause line fire, motor scrapping. The overcurrent protection will cut off the power supply within milliseconds to avoid the expansion of danger, which to the more urgent circuit safety protection.
Power failure protection: The function is to prevent the equipment from starting automatically when power is restored after an unexpected power outage, avoiding safety accidents. If the angle grinder loses power during operation, if there is no power outage protection, when the power supply is restored, the equipment will start directly. At this time, if the operator does not hold well, the high-speed rotating grinding disc / cutting disc is very likely to hurt people. An angle grinder with power outage protection will automatically lock the switch status after power, and the switch must be pressed again to start after power is restored, eliminating the risk of "automatic startup after power recovery" from the source.
Constant power and constant speed: Its function is to ensure that the speed and power remain stable when the load changes, improving the quality and efficiency of machining. Ordinary angle grind experience a significant drop in speed when the load increases (for example, the speed becomes slower when grinding hard metal), not only reducing the machining efficiency but also causing problems such grinding disc jams and uneven surface finishes on the workpiece. The constant power and constant speed function will compensate the power in real time through the built-in speed regulation system When the load increases, it will automatically increase the output power to maintain a stable speed; when the load decreases, it will reduce the power, ensuring machining accuracy and saving energy extending the life of the grinding tool.
