Common Problems And Solutions For Rotary Tablet Presses Machine

Rotary tablet press is a device that compresses powder or granular materials into tablets, and is used in pharmaceutical companies, medical laboratories, chemical workshops, and other industries. Today, we will introduce some common problems and corresponding measures to everyone.

Common problem:

1. Power Running

Powder running refers to the difference between the weight of raw materials and the weight of finished products. Severe powder running can cause material waste and pollution of the working environment. There are many reasons for powder leakage, such as poor sealing of the feeding system, fast feeding speed, abnormal scraper, mold wear or improper installation leading to poor sealing, etc.

2. The tablet weight is uneven. The reason for this problem may be that the abnormal humidity of the raw materials affects the fluidity, resulting in uneven feeding; Excessive differences in raw material density result in uneven feeding; The severe wear of the mold affects the compression effect; Uneven upward and downward pressure.

3. Quality issues with tablets. Common quality issues include rough and uneven surfaces, fragmentation, and insufficient hardness. The main reasons are wear on the mold surface, uneven material particles, and abnormal moisture content.

4. Excessive noise and abnormal vibration. The reason for excessive noise may be abnormal clearance between bearings, turbine and worm, bearing wear or lack of lubricating oil.

Response measures:

• For the phenomenon of powder running, a powder removal knife or scraper can be installed on the feeder, and the powder removal knife or scraper can be checked or replaced regularly; Improve the fluidity of raw materials; Control the sealing of the tablet press, check the use of the mold punch, and replace it in a timely manner if there is wear and tear
• Regularly check whether the feeding hopper, feeder, and feeding pipeline are normally or blocked to ensure the continuous and stable feeding of the feeding system, or an automatic feeding system can be equipped. Regularly check whether the mold is damaged, and replace it promptly if there is any damage.
• Try adjusting the moisture content, viscosity, and particle size of the raw materials to improve fluidity, without being too dry or too wet. Adjust the pressure of the upper and lower punch heads. Regularly clean and polish the molds.
• When choosing a tablet press, try to use a variable frequency motor. Regularly check the wear between the worm gear and worm gear, between the punch plate and the mold, and between the bearings, and use lubricants to reduce friction, thereby achieving the effect of reducing noise and vibration.
• Strengthen the training of employees on operating norms. Rotary tablet presses are high-precision equipment, and the users should refer to the setting steps, specific equipment parameters, usage status, emergency measures, etc. Employees should also learn how to clean the machine regularly to ensure its stable and long-term use.