Capsule Filling Machine: Key Features, Components & Benefits
The capsule filling machine is a core piece of pharmaceutical packaging equipment. Our new-generation model is engineered for accuracy, efficiency and hygienic operation. It combines touch-screen control, a Siemens PLC, stepless variable-speed drive, and a fully automatic capsule sowing and locking system. Designed to replace manual filling, it reduces labor intensity, improves production efficiency, ensures precise dosing, and delivers a product qualification rate of up to 98%.
Key Features of the Capsule Filling Machine
Here are the main features that set our automatic capsule filling machine apart.
Touch-Screen Operation & PLC Control
The new model upgrades to a touch-screen operating interface. This makes operation more convenient, extends the service life of the whole machine, and gives it a more modern, high-end appearance. The machine uses mechanical and electrical integration control together with pneumatic control, and is equipped with a Siemens programmable logic controller (PLC) for reliable, repeatable automation.
Precision Capsule Sowing (Broadcasting) Mechanism
The capsule broadcasting section adopts the structure of a fully automatic capsule filling machine. This design enhances positioning precision and reduces friction, so capsules are handled gently and consistently before filling.
Flat-Mode Pneumatic Capsule Locking
The capsule locking section uses a flat-mode design and operates on pneumatic principles to achieve full automation. This effectively prevents powder settling during locking, improves product quality, and reduces the manpower required.
Stepless Variable-Speed Drive
A frequency-conversion stepless speed-regulating device allows the operator to adjust production speed smoothly across the full range, adapting the machine to different materials and filling requirements while maintaining consistent output quality.
Automatic Counting & Safety Shutdown
The mechanism is counted and controlled automatically by the PLC. When a mold is fully lined with capsules, the machine shuts down automatically; the operator can also stop the machine manually mid-cycle if required. Production speed is set digitally on the touch screen, and the current speed is displayed in real time.
Main Components of the Machine
The machine is composed of several key parts: a capsule sending and U-turn separation mechanism, a filling mechanism, a locking mechanism, a variable-frequency speed-regulating mechanism, a pneumatic and electric control system, a protection device, and a vacuum pump with its accessories.
Capsule Sowing Mechanism
This mechanism takes hollow empty capsules from the hopper and inserts them into the broadcasting tube. It is driven by a single frequency-conversion stepless speed-regulating motor that drives the cam rocker and ratchet mechanism. When the cam rotates one full circle, the ratchet propels the gear, pushing one row of capsules into the mold holes; at the same time, the cam drives the rocker through one working cycle.
As the broadcasting tube is driven by the eccentric wheel to the bottom, the clamp spring presses the broadcast capsule and places one row of capsules. When the broadcasting tube rises, the clamp spring immediately closes the tube. The capsules fall into the capsule comb, are pushed forward to the U-turn position, and are pressed downward, orienting the capsule body downward and the cap upward. Below the die, negative-pressure airflow suctions the capsules into the mold holes. Because the upper mold hole has a small step that stops the capsule cap in the upper mold, the capsule body continues to descend into the lower die hole under vacuum. In this way, the mechanism completes capsule discharge, U-turn and separation in a single automated sequence.
Filling Mechanism
The filling mechanism precisely doses and fills the separated capsule bodies with the required powder volume. Combined with PLC-controlled counting and the stepless drive, it ensures accurate, repeatable filling doses that meet pharmaceutical and health requirements.
Locking Mechanism
The locking mechanism closes each filled capsule using the flat-mode, pneumatically driven design. This step completes the filling cycle and secures the dosage, while the pneumatic actuation prevents powder disturbance and maintains product quality.
Variable-Frequency Speed-Regulating Mechanism
This mechanism drives the machine with smooth, adjustable speed, giving operators precise control over output while protecting components from mechanical shock.
Control Systems, Protection Devices & Vacuum Unit
An integrated pneumatic and electric control system coordinates every stage of operation, while protection devices safeguard the machine and the operator. A vacuum pump and its accessories supply the negative-pressure airflow used in the sowing and separation process.
Supported Capsule Sizes and Filling Capacity
The machine accepts both domestic and imported empty capsules. Depending on the capsule size, it places the following number of capsules per row and per batch:
| Capsule Size | Capsules per Row | Total per Batch |
|---|---|---|
| 1#, 2#, 3#, 4#, 5# | 7 | 420 |
| 0# | 6 | 360 |
| 00# | 5 | 300 |
| 000# | 4 | 240 |
Batch totals are derived from 60 rows per loading pass (7×60=420, 6×60=360, 5×60=300, 4×60=240). Confirm the exact batch rating with our engineers for your capsule size.
Why Choose Our Capsule Filling Machine
- High filling accuracy with precise, repeatable dosing.
- Up to 98% product qualification rate.
- Reduced manpower and lower labor intensity.
- Hygienic design that meets pharmaceutical and health requirements.
- Touch-screen PLC control for convenient, modern operation.
- Compatible with both domestic and imported empty capsules.
- Siemens PLC and stepless variable-speed drive for stable output.
Frequently Asked Questions (FAQ)
What capsule sizes does the machine support?
The machine supports sizes 000#, 00#, 0#, 1#, 2#, 3#, 4# and 5#. It places 7 capsules per row for sizes 1#–5# (420 per batch), 6 per row for 0# (360 per batch), 5 per row for 00# (300 per batch), and 4 per row for 000# (240 per batch).
What is the product qualification rate?
The machine achieves a product qualification rate of up to 98%, depending on materials and setup.
Does the machine work with domestic and imported empty capsules?
Yes. The machine is compatible with both domestic and imported empty capsules.
How is the filling dose kept accurate?
Accuracy is ensured by the precision sowing and filling mechanisms, PLC-controlled automatic counting, and the stepless variable-speed drive, which together maintain a consistent filling volume.
How is the machine speed adjusted?
Production speed is set digitally on the touch screen (broadcast capsule frequency input), and the current speed is shown on the display.
Is the machine automatic?
Yes. Through Siemens PLC control, the machine automatically completes capsule positioning, separation, filling and locking. It shuts down automatically when a mold is fully lined, and can also be stopped manually mid-cycle.
What does the machine consist of?
It is composed of a capsule sending and U-turn separation mechanism, a filling mechanism, a locking mechanism, a variable-frequency speed-regulating mechanism, a pneumatic and electric control system, a protection device, and a vacuum pump with accessories.
Conclusion
The new-generation capsule filling machine combines touch-screen PLC control, precision mechanisms and stepless speed regulation to deliver accurate, hygienic and efficient filling. With up to 98% qualification and support for multiple capsule sizes, it is an ideal choice for pharmaceutical and health product packaging.
Ready to upgrade your capsule filling line?
Request a quote or learn more about our capsule filling machines and semi-automatic models.
