1. The protective covers, safety covers, and other devices on the machinery and equipment should not be removed, but should be installed properly when in use.

2. Stamping dies need to undergo strict flaw detection tests and external inspections, with no cracks, deformations, or missing edges, suitable hardness, and accurate size. If they are not qualified, they should not be used to avoid serious damage to the machine.

3. The particle size of the powder should not exceed 100 mesh, as it will cause more powder to fly in the upper punch and more material to leak in the lower punch, affecting the mechanical parts and easily causing wear, sticking, and material loss.

4. Do not use non dry raw materials as they can cause the powder to stick to the punch surface.

5. If there are any jumping or stuck pieces during operation, do not use your hands to retrieve them to avoid hand injury accidents.

6. When driving, you should first turn on the electric motor and wait for it to run normally before starting the clutch.

7. If abnormal vibrations or strange noises are found during use, the machine should be stopped immediately for inspection.

8. During use, the pressure should not be too high. Generally, the load of the electric motor is used to determine the load. When using a 380V electric motor for tablet pressing, the normal overload current should not exceed 4 amperes.

9. Increase in tablet weight difference: During the pressure process, if the weight difference exceeds the limit specified in the pharmacopoeia, it is considered qualified. However, during the tablet pressing process, it is often found that the tablet weight difference increases. The reasons and treatment methods are briefly described as follows:

(1) Uneven length of punch heads can easily increase the difference in chip weight. Therefore, before use, check each punch head with a caliper and use it again. If there are individual pieces with light weight, it may be due to the failure of the downward movement, resulting in less particle filling than others. Individual downward movements should be checked to eliminate obstacles.

(2) Blockage of feeding hopper or granulator: During tablet pressing, if the particles used are small, sticky or wet, and there are occasional foreign objects such as cotton yarn heads and tablets mixed in, the flow is not smooth, which reduces the amount of particles added to the mold hole and affects the tablet weight. If the tablet weight suddenly decreases, stop the machine for inspection.

(3) Particles can cause changes in flake weight: particles that are too wet, have too much fine powder, have large differences in particle size, and lack of lubricant in the particles can also cause changes in flake weight. Therefore, particle quality should be improved.

(4) The reason for the change in tablet weight is generally due to the malfunction or negligence of the tablet press. Therefore, during the tablet pressing process, maintenance work should be done, and the parts should be carefully inspected for damage. The tablet weight should be weighed at regular intervals (10-20 minutes) to ensure that it meets the regulations.