Two color powder tablet pressIt is a rotary tablet press used to make various shapes of tablets from granular raw materials. In addition to pressing circular pieces, this machine can also press irregular pieces, special pieces, double-layer pieces, circular pieces, etc., which can be customized according to your requirements. When running simultaneously, the noise is low, the pressure is high, and the machine stops due to overpressure to avoid damage.

The common problems and solutions of dual color powder tablet press are as follows:

1. Color difference or layering of two-color tablets

Reason: Uneven mixing of two colors of powder or imbalanced filling ratio, resulting in uneven color distribution or interface delamination after compression molding.

Solution:

Optimize the mixing process to ensure the flowability and density matching of the two-color powder.

Adjust the parameters of the dual color filling mechanism to ensure consistent filling depth (recommended error ≤ 0.1mm).

2. Adhesive punch phenomenon (punch sticks to powder)

Reason: Insufficient surface smoothness of the punch, insufficient lubrication, or high moisture content of the material.

Solution:

Regularly polish the punch and use food grade medical lubricants to reduce friction.

Control the moisture content of particles at 2%~3% to avoid excessive fine powder.

3. Unstable or unable to apply pressure during compression

Reason: Malfunction of the oil system (such as insufficient oil volume, missing steel ball of the pressure relief valve) or failure to tighten the mold.

Solution:

Check the oil level in the fuel tank and replenish 40 # engine oil to ensure that the pressure relief valve steel ball is reset.

Tighten the mold and large screw to eliminate oil leakage points (such as replacing the small plunger seal ring).

4. Uneven hardness or fragmentation of tablets

Reason: Excessive particle elasticity, improper pressure setting, or mold wear.

Solution:

Adjust pressure parameters (recommended two-stage pressure, pre pressure+main pressure).

Replace the worn mold and optimize the particle compression ratio (preferably with a resting angle of ≤ 35 °).

5. Malfunctions caused by environmental factors

Reason: Excessive temperature and humidity (such as humidity>50%) can affect material fluidity or cause adhesive flushing.

Solution:

Control the workshop environment (temperature 18-26 ℃, humidity 35% -50%), and ensure that moisture absorbing materials have a humidity of less than 35%.