When working, first turn on the machine and then feed the material. Due to the gravity of the material itself and the rotation of the spiral feeder, the material is continuously fed to the cutter blade for chopping. Because the pitch of the spiral feeder is smaller at the back than at the front, but the diameter of the spiral shaft is larger at the back than at the front, this creates a certain squeezing force on the material, which forces the chopped meat to be discharged through the holes on the grid plate.

When used in the production of canned luncheon meat, the fat meat requires coarse grinding while the lean meat requires fine grinding. This is achieved by switching the grating plates. The grating plates have several different specifications of holes, typically with a diameter of 8-10mm for coarse grinding and 3-5mm for fine grinding. Both coarse and fine grinding grating plates are made of 10-12mm thick ordinary steel plates. Due to the larger hole diameter for coarse grinding, the material discharge is easier, so the rotational speed of the spiral feeder can be faster than for fine grinding, but it should not exceed 400 rpm. Generally, it is between 200-400 rpm. Because the total area of the holes on the grating plate is constant, which means the material discharge volume is constant, when the rotational speed of the feeding screw is too fast, it can cause the material to block near the cutting blade, resulting in a sudden increase in load, which has a negative impact on the motor.

The cutting edge of the reamer is installed following the rotation of the cutter. The reamer is made of tool steel, and its cutting edge must be sharp. After prolonged use, the cutting edge becomes blunt, and at this point, it is necessary to replace the blade with a new one or regrind it, otherwise it will affect the cutting efficiency. In some cases, materials may not be cut into pieces and discharged, but rather squeezed and ground into a slurry before being discharged, directly affecting the quality of the finished product. According to research conducted by some factories, quality accidents such as severe fat separation in canned luncheon meat are often related to this reason. After assembling or replacing the reamer, be sure to tighten the fastening nut to ensure that the grid plate remains stationary. Otherwise, relative motion between the grid plate movement and the reamer rotation can also cause the material to be ground into a slurry. The reamer must be tightly attached to the grid plate, otherwise it will affect the cutting efficiency. The spiral feeder rotates inside the machine wall, and care must be taken to prevent the spiral surface from colliding with the machine wall. If there is even a slight collision, it can immediately damage the machine. However, the gap between them cannot be too large, as this will affect the feeding efficiency and squeezing force, and may even cause the material to flow back through the gap. Therefore, the processing and installation requirements for these parts are relatively high.