The semi-automatic capsule filling machine is an excellent choice for small to medium businesses. Why? It’s more affordable than fully automatic types but faster than manual filling. Before buying one, we suggest reading more about it in this guide. The topics we will be covering include:
- The machine’s definition
- Its parts and working
- Benefits and limitations
- Example applications
What is a Semi Automatic Capsule Filling Machine?
A semi-automatic capsule filling machine is an encapsulation device that uses automated and manual steps. In other words, the operator performs some tasks. The tasks may include loading the fill material and capsules, transferring capsule trays, and various start/stop actions.
On the other hand, it automates the following actions: capsule and material feeding, filling, sealing, and ejecting filled capsules. The automated processes increase the production output to tens of thousands of capsules an hour.
The machine is usually a freestanding unit with caster wheels for mobility. Like other fillers, it uses sturdy, easy-to-clean materials like stainless steel. Let’s delve into its construction in more detail to help us understand it better.
Semi Automatic Capsule Filling Machine Parts
The semi-automatic filler is an electromechanical device with moving and non-moving components. The parts include capsule and material feeding units, loading and filling stations, a capsule closing system, and controls.
1. Capsule Feeder
The capsule feeding system has two parts: a hopper and an orientation/rectification unit. The hopper holds empty capsules before dispensing them down the rectifier.
On the other hand, the rectification unit contains channels and fingers. These line the capsules in one direction, with the body facing down. It also aligns them with the loading/filling tray holes.
2. Material Feeder
It comprises a hopper and dosing mechanism. The hopper stores the fill powder or other material. It can be many shapes, from conical and cubic to cylindrical and wedge.
Underneath the hopper sits a dosing unit. This part measures the powder or other material before depositing it into the capsule bodies. It typically consists of a sensor and dosing disc for amount control.
3. Capsule Loading Ring/Filling Tray
The capsule loading and filling tray is a two-disc component with evenly spaced holes. The holes receive and hold capsules coming from the orientation assembly. The lower disc holds the bodies while the upper disc secures the caps.
3. Vacuum System
It connects to a vacuum pump, supplying the pressure needed to separate or rejoin caps and bodies. The operator can vary the pressure levels as desired.
4. Sealing and Ejection Head
This part seals the caps to the bodies. It also ejects completed capsules to a collection bin or box. It’s usually a disc lined with pins. We also call it a peg ring, given its construction.
5. The Controls
It consists of an HMI screen and several buttons or switches. You use these to set or adjust machine speed, cap separation pressure, dosing, etc.
The controls also allow you to monitor the operation and ensure its correctness. Simpler or older fillers may use buttons and levers to control the filing process.
Resource: https://www.openpr.com
Semi Automatic Capsule Filling Machine Working Principle
The filler’s working principle involves manual and automatic processes. To help you understand them, we created a detailed sequence of the automated steps and operator tasks.
Step By Step Operation
The operator cleans the machine and installs the required molds or tooling. Next, they pour empty capsules and the filling material into the hoppers and key in the required settings.
- Step 1: Capsule Loading – the capsules go down the rectification unit, emerging with the body down and cap up. A mechanism inserts them into holes on a rotating tray a few at a time.
- Step 2: Cap separation: after one full rotation, the operator unscrews the tray and separates the two halves. In some machines, a vacuum system removes the caps.
- Step 3: Material Filling: The operator moves the tray with the separated capsules to the filling station. Here, the dosing mechanism dispenses powder or other material into the capsules.
- Step 4: Sealing and Ejection: the operator replaces the caps tray and transfers the assembly to the sealing head. A mechanism seals the capsules and ejects them for collection.
Operator Roles and Actions
The operator oversees the filler’s operation, executing the non-automated tasks. These include those mentioned below but can vary depending on the particular mechanism.
- Setting process parameters like speed or cap separation pressure.
- Loading capsules and filling material into the hopper.
- Placing and removing the loading tray.
- Transferring/moving the tray to the filling and cap sealing stations.
- Starting and stopping various filling steps.
- They may also spread the fill powder to ensure uniformity.
- Unloading the tray from the ejection head.
What are the Benefits of a Semi Automatic Capsule Filler?
The semi-auto filler lies between the fully automatic and manual types, offering the best of both worlds. Here are key reasons to invest in one, inducing what makes it different from the others.
Faster than Manual Fillers
The semi-auto filler is faster than a manual type. Its speed ranges between 10,000 and 20,000 capsules per hour, depending on the machine size and model. The speed is perfect for small or medium businesses in pharmacy, biotech, and other industries.
Cheaper than Automatic Filler
It costs much less than a fully automatic machine, making it an affordable choice for many businesses. While prices vary across manufacturers, you can expect it to go for $5,000-$10,000. In comparison, the automatic type generally costs over $20k.
Enhanced Flexibility
You can change tooling components to meet your requirements, which makes the machine more versatile than a manual type. This flexibility allows you to fill different capsule types, sizes, and materials.
Easy to Use
The semi-auto machine is less laborious than a manual capsule filling device. Given its simple design and fewer moving parts, you also need less training or experience to operate it. The operator tasks are also less complex, plus the device produces less noise.
Semi Automatic Capsule Filler Limitations
Anyone investing in a semi-automatic filling device must understand its drawbacks. That way, they can make an informed decision based on usage needs, whether personal or commercial.
Slower Operation than Automatic
It puts out more capsules per hour than a manual type. However, it remains slower than a fully automatic capsule machine, making it less suitable for higher production volumes.
Prone to Errors and Inconsistency
Despite reducing labor needs, the machine includes manual processes. These reduce precision and accuracy. Inconsistencies may show in fill material weight or capsule damage.
Semi Automatic Capsule Filling Machine Applications
The semi-auto capsule filler has many uses, given its production speed, usability, and affordability. The applications include the following.
- Small businesses producing medical drugs, supplements, or herbal extracts
- For agricultural products like plant boosters, fertilizers, and pesticides
- For packaging veterinary drugs, both oral and topical
- In the cosmetic industry for beauty products and implantations
- DIY filling, such as when you need a machine to fill dietary capsules
- Experimental applications by research institutions and pharmaceutical companies
Whether buying a semi-automatic encapsulation machine for commercial or non-commercial use, ensure it meets your requirements. It must comply with industry standards, such as cGMP, RoHS, and ISO.
Others include the Food and Drugs Agency (FDA) if you’re in the US. We also have the CE mark of quality if buying the device in Europe, among others.
The filler must also be compatible with your application. In other words, it must match your filing needs, such as capsule size and type, the fill material type, and production volume.
Conclusion
The semi-automatic capsule filling machine is a popular alternative to fully automatic or manual fillers. It offers cost-effectiveness and speed, meeting the production needs of smaller businesses. These, and other benefits, make it a good choice for small companies, research labs, and other needs.
