The breakage of hard gelatin empty capsules during the filling process is a common issue that can significantly impact production efficiency and product quality. As a supplier of high - quality hard gelatin empty capsules, I understand the importance of addressing this problem effectively. In this blog, I will share some insights and practical solutions on how to handle the breakage of hard gelatin empty capsules during filling.
Understanding the Causes of Capsule Breakage
Before we can effectively handle capsule breakage, it is essential to understand the root causes. Several factors can contribute to the breakage of hard gelatin empty capsules during filling:
1. Capsule Quality
The quality of the capsules themselves plays a crucial role. Low - quality capsules may have inconsistent wall thickness, which can lead to uneven stress distribution during filling. For instance, if the wall of a capsule is thinner in some areas, it is more likely to break under pressure. Additionally, improper gelatin formulation can affect the capsule's mechanical properties, making it more brittle. Our Hard Gelatin Hollow Capsule is manufactured with strict quality control measures to ensure consistent wall thickness and optimal mechanical properties, reducing the risk of breakage.
2. Environmental Conditions
Environmental factors such as humidity and temperature can have a significant impact on the physical properties of hard gelatin empty capsules. Gelatin is a hygroscopic material, which means it can absorb moisture from the surrounding environment. If the humidity is too high, the capsules may become soft and sticky, increasing the likelihood of breakage during handling. On the other hand, if the humidity is too low, the capsules may become brittle. Maintaining a stable environment with a relative humidity of around 30% - 40% and a temperature of 20°C - 25°C is ideal for capsule filling operations.
3. Filling Equipment
The design and condition of the filling equipment can also cause capsule breakage. Worn - out parts, such as punches and dies, can apply uneven pressure on the capsules, leading to breakage. Additionally, improper alignment of the filling machine can cause capsules to be misaligned during the filling process, increasing the stress on the capsules. Regular maintenance and calibration of the filling equipment are necessary to ensure smooth operation and minimize capsule breakage.
4. Filling Material
The characteristics of the filling material can affect the breakage rate of capsules. Powders with large particle sizes or high abrasiveness can cause more stress on the capsules during filling. Moreover, if the filling material has poor flow properties, it may require more force to fill the capsules, increasing the risk of breakage. Adjusting the particle size and flow properties of the filling material can help reduce capsule breakage.
Strategies to Handle Capsule Breakage
1. Quality Control of Capsules
As a supplier, we conduct rigorous quality control checks on our Gelatin Capsule Shell. We use advanced testing methods to ensure that the capsules meet the highest quality standards. This includes checking the wall thickness, hardness, and brittleness of the capsules. By providing high - quality capsules, we help our customers reduce the breakage rate during filling.
2. Environmental Management
To maintain optimal environmental conditions, it is recommended to use environmental control systems in the filling area. Humidifiers and dehumidifiers can be used to regulate the humidity, while air - conditioning systems can control the temperature. Regular monitoring of the environmental conditions using sensors is also necessary to ensure that they remain within the ideal range.
3. Equipment Maintenance and Upgrade
Regular maintenance of the filling equipment is essential to prevent capsule breakage. This includes cleaning, lubricating, and replacing worn - out parts. It is also important to ensure that the equipment is properly calibrated. In some cases, upgrading the filling equipment to a more advanced model with better design and control features can significantly reduce the breakage rate. For example, some modern filling machines are equipped with sensors that can detect misaligned capsules and adjust the filling process accordingly.
4. Filling Material Optimization
Working with the formulation team to optimize the filling material can help reduce capsule breakage. This may involve reducing the particle size of the powder, adding flow agents to improve the flow properties, or using a different formulation altogether. By making these adjustments, the filling process can be smoother, and the stress on the capsules can be minimized.
Case Studies
Let's take a look at some real - world examples of how these strategies have been applied to handle capsule breakage.


A pharmaceutical company was experiencing a high breakage rate of hard gelatin empty capsules during the filling of a new product. After a thorough investigation, it was found that the humidity in the filling area was too high, causing the capsules to become soft. The company installed a dehumidifier to reduce the humidity to the optimal level. Additionally, they upgraded their filling equipment to a more advanced model with better alignment features. As a result, the breakage rate was reduced from 5% to less than 1%.
Another company was using a filling material with large particle sizes, which was causing excessive stress on the capsules. By working with the formulation team, they were able to reduce the particle size of the powder and add a flow agent. This improved the flow properties of the filling material, and the breakage rate was significantly reduced.
Conclusion
Handling the breakage of hard gelatin empty capsules during filling requires a comprehensive approach that addresses the various factors contributing to the problem. As a supplier of Cow Bone Empty Capsule and other high - quality hard gelatin empty capsules, we are committed to providing our customers with the best products and solutions to minimize capsule breakage.
By ensuring capsule quality, managing environmental conditions, maintaining and upgrading filling equipment, and optimizing the filling material, companies can significantly reduce the breakage rate, improve production efficiency, and enhance product quality.
If you are facing issues with capsule breakage during filling or are looking for high - quality hard gelatin empty capsules, we are here to help. We invite you to contact us for further discussions and to explore how our products and solutions can meet your specific needs. Our team of experts is ready to provide you with professional advice and support.
References
- Pharmaceutical Capsules: Science and Technology, Second Edition. Edited by James T. Carstensen and Charles R. Robinson.
- Handbook of Encapsulation and Controlled Release. Edited by David J. Burgess.



