The working principle of the dual pressure rotary tablet press can be divided into the following core steps:

1、 Basic workflow

1. Dual turntable collaborative operation

By synchronizing the operation of two relatively rotating turntables, two pressing cycles are completed per rotation, which improves efficiency compared to single pressing.

2. Four stage suppression process

• Filling stage: The granular material is uniformly filled into the middle mold hole through two independent feeding devices.

Pre compaction stage: The upper punch descends to preliminarily compact loose materials.

Main pressure stage: The upper and lower punches apply 40-100kN pressure between the pressure wheels to complete the forming process.

• Tablet release stage: The downward punch head rises to push the tablet out of the mold hole.

2、 Function of key components

Rotary disk structure: Three layer casting design, with the upper layer driving the upper punch, the lower layer driving the lower punch, and the middle layer fixing the middle die, achieving vertical movement of the punch during rotation.

• Pressure roller system: Two sets of pressure rollers are configured with dual pressure, and the pressure is adjusted through hydraulic or mechanical means.

• Powder suction device: Built in suction nozzle to recover dust generated during the pressing process, avoiding mold blockage.