These types of meat slicers have been set with several safety functions. When the power is cut off, one should restore the machine before starting it. The machine has the overheat protection function. It will automatically stop when the motor is overheated by work. One should restart the machine after the motor's temperature falls down and expelling all the breakdowns. For models with safety lock protection on blade guard, operator should clean up the blade guard and assembly it in place before restarting the machine; for models with safety lock protection on food carrier, one should adjust the thickness adjusting knob to position 0 before disassembling and cleaning. All the safety lock protections are designed to guarantee users safety.The meat slicers are mainly used for slicing frozen meat, flour products, sausage and luncheon meat. The machines are only for commercial use which are mainly applied in fields like meat processing plant, restaurant, hotel and supermarket etc.