How to Deal With The Sticking Phenomenon of the Tablet Press?

  • Sticky punching refers to the fact that the fine powder on the surface of the tablet is adhered by the punch and die when the tablet press is in operation, which makes the surface not shiny, uneven and dented, and the lettering punch is more prone to sticking. So what causes this phenomenon of tablet presses? How to deal with this situation in order to be able to use the tablet press better and achieve better results? As a tablet press supplier, I'd like to introduce it to you.


    Tablet Press

    Tablet Press

    1. The surface of the punch of the tablet press is damaged or the surface finish is reduced, there may also be anti-rust oil or lubricating oil, the surface of the new punch is rough or the lettering is too deep and angular. The punch can be cleaned, replaced with substandard dies, or rubbed with a small amount of liquid paraffin on the surface of the lettering punch to make the literal lubrication. In addition, if the tablet press heats up and causes stickiness, check the cause and overhaul the equipment.

    2. The design of engraving and punching characters is unreasonable. Replace the punch or change the character design accordingly.

    3. Excessive water content of the particles or uneven dryness and wetness of the particles may cause stickiness. Solution: Control the moisture of the particles at about 2%~3%, and strengthen the dry particle inspection.

    4. Insufficient amount of lubricant or improper selection, too much fine powder. The amount of lubricant should be appropriately increased or replaced with a new lubricant to remove excessive fine powder.

    5. The large difference in the fineness of the raw and auxiliary materials causes uneven mixing or improper mixing time. Solution: Crush and sieve the raw and auxiliary materials to make the fineness meet the quality requirements of the variety. At the same time, master and control the mixing time.

    6. The adhesive concentration is low or the adhesive strength is poor due to the quality of the adhesive. There are too many fine powders (more than 10%) and sticking. Solution: Use a 40-mesh sieve to sieve out the fine powder, re-granulate, dry, and granulate the whole batch and mix it evenly before pressing.

    7, due to the raw material itself (such as moisture absorption) caused by sticking. Solution: Add a quantitative absorbent (such as adding 3% calcium hydrogen phosphate) to avoid sticking.

    8. The environment humidity is too high, and the humidity is too high to reduce the environment humidity.

    9. Too high operating room temperature is prone to sticking. Attention should be paid to lower the temperature of the operating room.


    Canaan has the tablet press for sale, welcome to consult!