How to Start a Fish Oil Softgel Production Line: A Step-by-Step Technical Manual

1.What goes into the fish oil softgel shell?

Making a bad softgel shell causes leaks. You lose expensive fish oil and face angry buyers. I will explain the exact shell formula to stop leaks.

The softgel shell has three main parts. It uses gelatin, water, and a plasticizer like glycerin. You can use animal gelatin or plant-based vegan gelatin. The mixture needs about 45% water. You can also add colors and flavors to the shell.

Softgel Shell Preparation

I remember a client from Europe. They bought cheap gelatin. Their softgels melted in the box. I helped them fix their formula. We changed the gelatin strength. You must pick the right materials. I will break down the shell parts for you.

2.Animal Gelatin and Vegan Gelatin

Most companies use animal gelatin. It comes from animal bones and skin. You need a bloom strength between 150 and 200. The viscosity must be 25 to 40 mP. The particle size must be normal. Some buyers want vegan softgels. We use tapioca extract for them. Tapioca comes from a plant. It works just like animal gelatin. It gives the same strong shell.

3.Water and Plasticizers

You cannot make a softgel with just gelatin. You need water. The water makes up about 45% of the formula weight. You adjust the water to get the right thickness. You also need a plasticizer. This makes the shell soft and flexible. We use glycerin or sorbitol. The plasticizer is 0.3 to 1.8 parts of the mix. You choose the exact number based on the final strength you want.

4.Extra Ingredients

You can add other things to the shell. You can add natural or synthetic colors. This helps people recognize the pill. You must make sure the colors do not react with the oil. You can add titanium dioxide. This makes the shell block light. Light can ruin fish oil. You can add preservatives to make the pills last longer. You can add sweet flavors like vanilla or sugar to hide the bad fish smell.

5.How do you prepare the fish oil fill matrix?

Bad fish oil filling causes blockages. Your machine stops working. You lose production time. I will show you how to prepare the fill matrix correctly.

The fill matrix is the inside of the softgel. For fish oil, you use a pure oily mixture. You can also make solutions or suspensions. You must make sure the oil is stable. You need a good mixing tank to keep the liquid smooth.

Fish Oil Fill Matrix

I visited a factory last year. Their pump was stuck. They did not mix their liquid well. We fixed their mixing process. The fill matrix is very important. You must understand the different types of fills. I will explain them below.

Oily Mixtures

Fish oil is an oily mixture. It is easy to fill. Plant oils are also oily mixtures. You just need to keep the temperature right. You pump the pure fish oil into the machine. The liquid flows fast.

Solutions and Suspensions

Sometimes you want to add extra vitamins to the fish oil. You make a solution. You dissolve the vitamins in the oil. You can use safe solvents like soybean oil or Myglyol 812. Sometimes the powder does not dissolve. You make a suspension. The powder floats in the oil. You can have up to 30% solid powder in the oil. The liquid must still flow well. You must mix it very well.

Stability Control

You must protect the fish oil. Fish oil goes bad easily. You need to control the air and light. A good fill matrix keeps the active ingredients safe. It helps the human body absorb the medicine. You must check the physical stability of the mixture. You use a vacuum homogenizing mixer to remove air bubbles. This keeps the fill perfect.

6.What equipment do you need for a softgel line?

Buying the wrong machines ruins your business. You waste millions of dollars. Your factory fails the GMP test. I will list the exact machines you need.

You need a softgel encapsulation machine as the core equipment. You also need a gelatin melting tank and a material mixing tank. After making the capsules, you need tumble dryers, drying trays, and a polishing machine. All machines must meet cGMP standards.

Softgel Encapsulation Equipment

A new customer once asked me to build a whole factory. They did not know what machines to buy. I gave them a complete equipment list. We design machines for big B2B factories. I will show you the main equipment parts. You must buy good quality machines.

The Core Encapsulation Machine

The softgel encapsulation machine is the most important part. It makes the gelatin ribbons. It pushes the ribbons together. It injects the fish oil. It seals the capsules. Our machines fit CE and cGMP rules. They are easy to use. You can change the molds fast. We have machines for low, medium, and high speeds. They have good computer control systems.

Melting and Mixing Tanks

You need a gelatin melting tank. It heats the gelatin and water. You need a vacuum homogenizing mixer for the oil. You might need a colloid mill to grind powders. You need a cooling system to keep the temperature steady. These tanks keep the materials ready for the main machine. You connect them with clean pipes.

Post-Processing Equipment

The wet capsules need drying. You need a tumble dryer for the first dry. You need drying trays and tunnels for the final dry. You also need a sorting machine. It removes bad capsules. You need a polishing machine to clean the capsules. You can use a pulverizer to recycle bad gelatin.

7.How does the softgel encapsulation process work?

A messy process makes bad capsules. You fail quality checks. Your clients return the products. I will explain the four clear steps to make perfect softgels.

The process has four steps. First, melt the gelatin to make flat ribbons. Second, prepare the fish oil fill. Third, use the machine to inject oil between two gelatin ribbons and seal them. Fourth, dry the wet capsules and polish them.

Fish Oil Softgel Manufacturing Process

I train machine operators every month. Many operators skip steps. They make mistakes. I always teach them these four strict steps. You must follow them exactly. I will break down the whole process for you.

Step One and Two: Preparation

First, you put gelatin, water, and glycerin in the heating tank. You heat it for three hours. The mixture melts completely. The liquid flows to a cooling box. It spreads onto a cooling drum. It becomes a flat, stable gelatin ribbon. Second, you prepare the fish oil. You mix it well. You put it in the liquid tank above the machine.

Step Three: Encapsulation

The machine pulls two gelatin ribbons together. The air cooling system keeps the room temperature right. An injection wedge sits between the two ribbons. It gets hot. It injects the precise amount of fish oil into the space. The rotary die cuts and seals the capsule at the same time. The mold decides the capsule size and shape. You can also use flat plate molds. The rotary die is the most common method.

Step Fourth: Drying and Polishing

The new capsules are very wet. They go into a tumble dryer. This removes 25% of the water. Next, you put them on trays. They sit in a drying room for 24 hours. You control the humidity. Finally, you check them for damage. You test the weight, thickness, and moisture. You test for bad bacteria. You use a polishing machine to clean the oil off the outside. You can wash them with a safe solvent.

Conclusion

Starting a fish oil softgel line requires good formulas and the right machines. Follow these steps to build a successful factory. Contact us for professional equipment solutions today.