The Process, Ingredients, Machines, and Challenges of Soft Gel Manufacturing

Soft gel manufacturing requires several steps and components to produce the final product. This article will discuss the process, ingredients, machines, and challenges. These are essential for any pharmaceutical company considering manufacturing this type of medicine. It will also help you determine which equipment and ingredients are required. There is a chance of mingling during the process, so it is important to understand what can happen during each step. Incorrect mixing or mingling can result in a failed formulation.


The Process of Soft Gel Manufacturing is a form-fill-seal (FFS) method used to produce softgels. In this method, two flat ribbons of shell material are manufactured on a machine and brought together on twin sets of rotating dies. These dies contain recesses in the desired size and shape. The ribbons are then shaped by positioning the filling wedge between the die pockets. The finished product is then put into bottles, blister packs, or other air-tight systems.

The first step in the process is to melt the gelatin mix. The gelatin is pumped into the machine, and then passes over rollers. Then, it is pushed between two rotating die cylinders that determine the shape and size of the capsule. Next, the gelatin ribbons meet a fill injector. The fill injector dispenses a specific volume of fill material, and the two halves of the capsule are sealed by heat and pressure.


Gelatin material is a primary ingredient in soft gel production, but other materials are also used. These include glycerin and miglyol 812, which are perfect examples of carrier solutions. Other non-volatile solvents may also be used, including glycerin and alcohol at a maximum concentration of 10% w/w. These materials contribute to the soft gel’s stability. Ingredients used in soft gel manufacturing also have important functions in drug delivery.

The encapsulation process involves converting a gel mass into a thin layer of gelatin that wraps around a fill material. The gelatin shell is then dried via a supplemental drying process known as tumbling. Tumbling occurs to remove excess moisture from the softgel. The process also involves printing the final product, and it is highly customizable. To learn more about the process of making softgels, you can consult with an expert in the field.


Machines for soft gel manufacturing vary in size depending on the type of product you are producing. Each one is equipped with a range of features, such as a filling system that can automatically process gelatin and fill material. This machine also seals and discharges capsules. The machine has various options, including automatic capsule encapsulation, which ensures the quality of your products. These machines are designed with the latest technology and can reduce the need for extra workers and excess power.

There are two main types of capsule filling machines. Small-scale machines are portable and are generally found in R&D institutions and laboratories. These machines are suitable for small-scale production and produce a small number of capsules. Large-scale machines are typically found in pharmaceutical and food processing industries. However, large-scale production is also possible. If you are looking for a large-scale soft gel capsule filling machine, you can find one in a large-scale plant.


One of the major advantages of softgel contract manufacturer technology is that it allows for rapid absorption of ingredients while minimizing the use of excipients. Other types of dosage forms present challenges in terms of safety and uniformity. Soft gels are often formulated in a range of colours, shapes, and finishes. To increase the appeal of the soft gel, manufacturers can add flavour or other ingredients. In addition, soft gels can be made in an array of sizes and shapes.

The process of manufacturing softgels can present several challenges, ranging from gelatin and fill content formulation to machine set-up. This type of manufacturing requires a high level of expertise in terms of the chemistry and physics of the manufacturing process. Moreover, softgels are sensitive to moisture and heat, which can lead to solute migration, shell inertness, and cross-linking. As a result, they often fail to provide effective API delivery.


While the manufacturing of soft gels is well known, there are still challenges to the process. Especially with gelatin, the correct amount of moisture is key. Otherwise, the resulting soft gel may be sticky, or the wrong amount could cause it to become brittle. For this reason, the process for manufacturing soft gels must be optimized to ensure the correct amount of moisture. Also, knowing the proper percentages of ingredients is key to the manufacturing process.

A modern method for manufacturing soft gels involves two gelatin ribbons passing between two twin rotating dies. A small quantity of liquid is then precisely injected between the two ribbons. The two dies are then continuously rotated until they come together, forming a capsule. In the 1990s, P. Tyle published a book called Specialized Drug Delivery Systems that details the process of softgel manufacturing. The book is a comprehensive guide to the process of making soft gels and the production technology.

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