A vial filling machine is a type of equipment pharmaceutical manufacturers use to fill liquids into vials. This machine operates in a clean environment to prevent contamination, making it suitable for the production of vaccines and injectables. Via filling machines offer precision and speed production processes. In this article, we will provide more details about this machine.
How Vial Filling Machines Work
Via filling machines work by integrating different steps which contribute to their precision. Each step helps you maintain the quality of your product and reduce the risk of contamination. Below are the steps involved in the vial filling process.
Cleaning and loading vials
Before your machine starts dispensing liquid, it cleans the vials to remove particles or dust. An important part of the machine known as the vial washing machine performs the cleaning task. It uses nozzles to rinse your vials in different cycles.
After completing the washing process, your vials go through a depyrogenation oven before it gets to the filling zone. With this step, you are sure of clean vials for filling.
Inspection
In this step, your machine checks for any physical defects like chips or cracks in your vials. Some vial filling machines have advanced features like automated vision systems and high-resolution cameras to carry out this step.
If any of your vials have defects, your machine will reject and remove it. These quality control measures help you ensure perfect vials get to the filling stage.
Filling Vials and Sealing
Here, your machine moves the clean vials to the vial filler. The vial filler precisely dispenses liquid like injectable drugs or vaccines into each vial. Your machine may fill liquids through time-pressure filling systems or peristaltic pumps. The viscosity of your liquid usually determines the type of filling systems to use. In order to maintain aseptic conditions, your machine carries out the filling process in an environment with laminar airflow.
After this, a vial cap sealer station inserts rubber stoppers in the opening of your vials. Then your machine applies aluminum caps and crimps them to seal the vials. Proper sealing maintains a tamper-proof and sterile container.
Post Vial Filling Operations
Once sealing of the vials is complete, then you must check if there are any defects. These defects could be related to something wrong with the fill level or the safety of the seal. There are machines that utilizes their unique features to help you identify these issues i.e. laser-based systems. The next step entails the transfer of the vials to where it would be packaged. It packs the vials and labels them, getting them ready to be distributed.
Types of Vial Filling Machines
There are different types of vial filling machines. Whatever type you choose has to meet your demands. This is important because every type handles specific types of products. Several machines feature automated systems and others need manual operation.
Vial Liquid Filling Machine
With a vial liquid filler, you can fill your liquid pharmaceutical products into your vials. The machine usually utilizes piston or peristaltic pumps. This helps in passing out the right quantity of liquid into the vials.
Also, the laminar airflow features enclosures that ensures cleanliness all through the process of filling/ The machine is great when dealing with continuous manufacturing.
Vial Powder Filling Machine
The vial powder filling machine is important for dispensing powdery medications into the vials. The machine features a vacuum dosing system that ensures the accurate filling of your powdery products.
This filling machine passes the right amount of products into the vials. It features a system that seals the vials once it has reached a particular volume. The machine is suitable for powdery products as well as freeze-dried antibiotics. Also, due to its multi-head fillers, it is easy to fill up lots of vials very quickly.
Based on Level of Automation
Manual Vial Filler
This machine is simple to operate. You need to operate the machine for every step from filling to stoppering, and capping. If you have a small-scale business, you can consider the manual vial filler.
Also, you don’t need to spend too much to get this machine because it is affordable. Manual vial filler enables you to have total control all through the filling process.
Semi-Automatic Vial Filler
Semi-automatic vial filler requires you to handle some steps manually while it integrates automation in other steps. This machine helps you fill your product in vials but you have to load and unload your products. It gives you control in some aspects while speeding up productivity. You should consider this type of machine for your medium-scale business.
This machine has a foot pedal which reduces how much effort you need to put in during the filling process. Cleaning and maintaining this machine won’t cost you much effort and cost.
Fully Automatic Vial Filler
This type of machine carries out the entire steps involved in the filling process. It feels, seals, and labels your products for you. All you just need to do is set it up and the machine takes full control of all the tasks. A fully automatic vial filler usually has enclosures which helps to maintain cleanliness. This machine adheres to CFR Part 11 and GMP standards.
Factors to Consider When Choosing a Vial Filling Machine
Because vial filling machines come in several types, there is a need to make your choice carefully, ensuring that it meets your needs. However, there are some factors you need to look into before you make your choice.
Size and type of Vial
Vials come in different types and sizes and this is how they differ. Some come with narrow sizes, while the heights of others are different. Make sure you consider your vials’ overall size before making your choice of vial filler, since some machines don’t work with some vial sizes.
In addition, the vial type you choose (glass or plastic) plays a role in determining what machine type you should use. If the vials’ material is glass then you may require an advanced machine to perform the task.
Production volume
It is a smart move to select a vial filler machine that is suitable with your manufacturing volume. If you’re dealing with large-scale manufacturing, think about using fully automated machines. They provide accuracy, efficiency, as well as consistency.
Moreover, if there is a need to perform clinical trials or deal with small-scale manufacturing, then you have to consider using either a semi-automatic or manual machine.
Automation Level
This is another important factor you need to consider when choosing a vial filling machine. As discussed earlier, there are different types of vial fillers based on their automation level. If you are venturing into large-scale production, you should consider automatic vial fillers. These machines speed up productivity and improve efficiency.
Semi-automatic or manual machines are a better option if you have small startups or medium-scale business.
Product type
The products manufacturers fill into vials vary. These products may be in liquid, semi-liquid or powder form. When you are working with liquid medications, it is important you consider the flow resistance of your product i.e viscosity. While some liquids flow easily, some have high resistance to flow.
Liquids with low viscosity need machines that have peristaltic pumps. On the other hand, liquids with high viscosity need machines that have piston pump systems.
Applications of Vial Filling Machines
Vial filling machines aren’t only suitable for pharmaceutical productions, you can use these machines in different applications where hygiene and precision are important.
Pharmaceutical Industry
This is the most popular industry that integrates vial filling machines. In this sector, pharmaceutical manufacturers use these machines to dispense vaccines, biologics, and injectable drugs in clean vials.
These machines operate in an aseptic environment and as such, prevent contamination during pharmaceutical packaging. Also, they comply with regulatory standards like WHO and FDA, making them important in the production of medications. Asides that, vial filling machines ensure precise dosing, which is crucial for proper consumption of medication.
Cosmetics
Cosmetics and skincare manufacturers use vial filling machines to fill and package products like perfumes, serums, skincare oils, etc. You need to ensure precision when filling these formulations in vials.
With these machines, you can maintain the integrity of your products by ensuring filling occurs in a clean environment. Also, aesthetics is a crucial factor in the cosmetics industry. These machines help you maintain clean fills without any residue. Vial filling machines used for cosmetics purposes have adjustable settings for different sizes and types of vials.
Chemical Industry
You can use vial filling machines for dispensing chemical solutions in containers. These solutions are hazardous and as such, you need to maintain a high level of precision when filling this kind of product. Vial filling machines designed for this application usually come with safety interlocks and closed-loop systems for enhanced protection.
Biotech Research
Biotech industries handle a lot of experimental medications and gene therapies. Therefore, you need small-batch vial filling for this purpose. Vial filling machines usually operate on a clean environment and offer accuracy, making them an ideal choice for filling small volumes of biotech products
Via filling machines used in advanced laboratories usually come with Isolators or RABS to prevent contamination when handling biological products.
Conclusion
Vial filling machines are commonly used across industries where hygiene, precision, and consistency are crucial when filling products. These machines operate in a clean environment and ensure clean, precise fills, making them suitable for pharmaceutical, biotech, and cosmetic products. Vial filling machines are available in different types. Choosing the suitable machine for your application helps you achieve smooth and successful production.
At SaintyCo, we offer complete turnkey solutions for all your filling needs. For more inquiries, contact us now.
FAQ
What is the difference between vial filling and ampoule filling?
Vial filling uses a stoppering and sealing system for plastic or glass vials. On the other hand, ampoule filling involves melting the neck of glass containers after filling.
What are the common challenges with the vial filling process?
During the vial filling process, your machine might encounter some problems with how to manage particulate, handle different vial sizes, ensure precise filling volumes, and prevent contamination.
