Comparison of core technologies between multi punch rotary tablet press and single punch tablet press

Core structural differences

1. Punching system:

The single stamping machine is only equipped with one set of stamping dies, relying on cam driven upward punching and unidirectional impact pressure, and fixed downward punching.

The multi punch rotary tablet press adopts a turntable integrated with multiple sets of dies (such as the 33 punch die), and gradually applies pressure by synchronously controlling the up and down punches through a track, achieving bidirectional pressure.

2. Workflow:

The single punch machine operates intermittently, completing the cycle of filling → unidirectional impact pressing → ejecting tablets in sequence, with a production capacity of approximately 100 tablets per minute.

Multi punch rotary continuous operation: When the turntable rotates, the die passes through the filling area, pre pressing area, main pressing area, and discharge area in sequence, with a production capacity of up to 110000 pieces per hour.

The impact of tablet quality

1. Pressure uniformity:

The single punch machine, due to unidirectional instantaneous impact pressure, has insufficient air discharge between particles, which can easily lead to uneven density inside the tablets, resulting in fragmentation and looseness.

The multi punch rotating type extends the pressure application time by gradually applying pressure in both directions (synchronous up and down punch movement), allowing air to fully escape and significantly reducing the fragmentation rate.

2. Tablet consistency:

The pressure fluctuation of the single punch machine is large, the abnormal difference in sheet weight exceeds ± 5%, and the thickness tolerance control is weak.

The multi punch machine is equipped with an intelligent feeding and pressure detection system, which can control the weight difference within ≤± 3% and the thickness tolerance within ± 0.05mm.

Production efficiency and applicable scenarios

1. Capacity comparison:

The single punch machine is suitable for laboratory research and development or small-scale trial production.

Multi punch rotary support for continuous high-speed production, suitable for large-scale industrial needs.

2. Automation level:

Single punch machines require manual adjustment of blade weight and pressure parameters, with frequent operation.

The multi punch machine integrates a PLC control system to achieve automatic lubrication, online die replacement, and remote monitoring.