Tablet Pressing Process of High-Speed Rotary Tablet Presses and Brief Introduction to Rotary High-Speed Tablet Presses

Aug 17, 2026 Leave a message

The high-speed rotary tablet press is an efficient tablet-making device whose pressing process achieves stable forming through continuous rotation and a double-pressure structure. This equipment adopts a double-pressure design and can be fitted with 33 sets of punches and dies. It is primarily used to compress various granular materials into elongated round or irregular-shaped tablets and serves as basic equipment suitable for batch production. We can perform single-piece or small-batch precision machining according to customer-provided design drawings to ensure precise matching of punches, dies, and pressure rollers during high-speed operation.

 

The tablet pressing process is generally divided into four stages: feeding, pre-compression, main compression, and tablet ejection. After the material is uniformly filled into the die holes by the forced feeder, the lower punch rises to the pre-compression position where the pressure roller applies initial pressure to expel air; it then enters the main compression zone, where the upper and lower punches are simultaneously pressurized to compact the material to the specified hardness and thickness. The double-pressure structure effectively reduces the peak pressure of a single compression, lowering the risks of tablet cracking and looseness. Hansheng Automation supports precise manufacturing of non-standard parts according to customer drawings. For the 33 sets of punches and dies and matching pressure rollers, high-hardness bearing steel or die steel is selected, with tolerances controlled within ±0.01 mm and surfaces hardened, significantly improving wear resistance and anti-sticking performance.

 

During high-speed rotation, the equipment places extremely high demands on punch and die synchronization and guide rail precision. The guide rails control the lifting and lowering trajectory of the punch rods to ensure centering error does not exceed ±0.05 mm; the main shaft and transmission system must transmit power smoothly to avoid vibration affecting tablet weight consistency. We possess drawing-based customization capability and can carry out precision machining of specialized parts for packaging machinery, providing customers with punches, dies, pressure rollers, and related guide rail components adapted to high-speed models, thereby helping extend the service life of critical components and maintain stable tablet quality in batch production.

 

Overall, the rotary high-speed tablet press excels in double-pressure continuous forming and higher production capacity, making it suitable for large-scale granule compression. Whether for standard round tablets or irregular-shaped tablets, the precision of the punches and dies and the condition of the pressure rollers directly determine the qualified rate of finished products. We always focus on precision component customization services and respond quickly according to customers' actual process requirements, providing reliable technical support for the high-speed tablet pressing process.

PRECISION-PARTSFOR-PHARMACEUTICAL-MACHINERY