Courtoy Compression Technology

Summary

This video showcases Jiya Courtois' innovative tablet compression technology, emphasizing its advantages in tablet quality and process control. Key features include a double paddle feeder with independent motors for fine-tuning, an air compensator that enhances dwell time by up to 300%, and a highly sensitive weight measurement system. The Courtois tablet press allows for both pre and main compression with adjustable rollers, ensuring consistent tablet quality and output. The process also offers improved flexibility for compressing diverse formulations, ultimately increasing output and providing superior control over tablet weight and hardness.

Takeaways

• 😀 The Courtois tablet press offers superior quality and process control, overcoming compression issues like low hardness and sticking.
• 😀 The rotary dosing valve ensures constant powder levels in the infeed tube using an infrared sensor, improving machine output.
• 😀 The double paddle feeder features two independent motors to fine-tune the process by adjusting speeds for each paddle.
• 😀 The air compensator in the compression technology offers advantages such as extended dwell time, sensitive weight measurement, and independent weight and hardness control.
• 😀 The compression cycle is divided into six stages, including overfill, dosing, underfill, pre-compression, main compression, and ejection.
• 😀 The overfill stage ensures enough powder is available in the die by using a fixed cam and adjustable overfill cams for different tablet weights.
• 😀 During pre-compression, air is removed from the powder bed, and particles are rearranged to improve material flow.
• 😀 The Courtois press offers unique advantages over traditional tablet presses by increasing dwell time without compromising linear speed.
• 😀 The air compensator in the press helps maintain equal compression force across all tablets, allowing for more efficient tablet production.
• 😀 The press uses a displacement-based weight control system for more sensitive and precise tablet weight measurement, particularly for smaller tablets and lower forces.

Q & A

What is the main innovation in the Courtois tablet press technology?

The main innovation is the integration of the air compensator, which offers a significant increase in dwell time (up to 300%) and enables better control over tablet compression, leading to improved tablet quality and higher machine output.

How does the rotary dosing valve benefit the tablet press process?

The rotary dosing valve eliminates head pressure and ensures a constant powder level in the infeed tube by using an infrared sensor, which helps maintain consistent powder feed and prevents fluctuations in tablet quality.

What are the benefits of the double paddle feeder with two independent drive motors?

The double paddle feeder with two independent drive motors allows for separate speed control for each paddle, enabling more precise adjustments for optimized powder feed and better overall process control.

What is the role of the pre-compression stage in tablet manufacturing?

The pre-compression stage is designed to remove air from the powder bed and rearrange the particles, helping to extend the time the material is under compression and allowing plastic materials to flow, thus improving tablet quality.

How does the air compensator improve tablet compression in comparison to fixed rollers?

The air compensator adjusts the compression force during tablet formation, increasing the dwell time by up to 300% without reducing the linear speed. This allows for better deaeration and more consistent compression of large tablets.

How is tablet weight controlled in Courtois' tablet press?

Tablet weight is controlled using two different methods: force control (measuring force variation) and displacement control (measuring tablet height displacement), with each providing a high degree of sensitivity depending on tablet size and compression force.

What distinguishes Courtois' tablet press from other machines in terms of dwell time?

Unlike other machines where dwell time is dependent on linear speed, the Courtois tablet press offers the ability to increase dwell time even while maintaining or increasing linear speed, providing greater flexibility and higher output without compromising tablet quality.

Why is the measurement of tablet height important in the Courtois tablet press?

The measurement of tablet height is crucial for controlling tablet weight, especially in the pre-compression stage. This displacement-based method provides a more linear relationship between tablet height and weight, improving sensitivity, particularly with smaller tablets.

How does the Courtois tablet press handle different formulations with varying compressibility?

The Courtois tablet press offers flexibility in adjusting the compression process to accommodate different formulations, ensuring optimal tablet quality and output for materials with varying flow and compressibility characteristics.

What advantages does the Courtois tablet press offer for large tablets?

For large tablets, the extended dwell time at the air compensator allows for better deaeration, which improves tablet compression and consistency, resulting in higher quality tablets and potentially faster production rates.