Fully Automatic Oral Liquid Filling Capping Production Line

This production line is a high-speed system custom-designed by our company to meet a specific client’s production capacity and requirements. The machine is engineered to handle a specific 30ml plastic oral liquid bottle provided by the client, featuring high throughput, exceptional filling precision, and efficient capping capabilities. With its integrated design, the equipment occupies minimal floor space and significantly reduces labor costs, making it an ideal choice for companies in the food, daily chemical, and pharmaceutical/ biotechnology sectors.

This machine employs a multi-disc linkage mechanism driven by a cam structure to perform automatic filling (utilizing a peristaltic pump) and servo-driven capping in a single integrated unit; the entire system is controlled via PLC, ensuring highly efficient production.

The exterior stainless steel components are made of SUS304, while the parts in contact with the material are made of SUS316L.

This system employs a continuous-tracking filling method. Its operating principle is as follows: as bottles travel along the conveyor track, a rotating turntable positions them for filling. The filling pumps execute precise filling operations while the turntable remains in motion; upon completion, the pumps automatically retract to track the next incoming empty bottle, thereby initiating the subsequent filling cycle. Once filled, the bottles proceed to the next processing station. The system utilizes high-precision peristaltic pumps for metering, offering an accuracy of ±1% as well as ease of cleaning.

Caps are fed sequentially from a vibratory bowl and applied via either a cap-hanging mechanism or a vertical vacuum suction system. The machine features a specialized capping chuck with adjustable torque; utilizing servo-driven technology, the torque settings can be easily and conveniently adjusted directly via the touchscreen interface, ensuring a high success rate. Furthermore, the bottle discharge station is equipped with a detection system that triggers an alarm or initiates rejection for any bottles found to be missing a cap.

1. This machine features a “no bottle, no filling” and “no cap, no capping” mechanism. 2. The machine is equipped with a cap detection function: if a bottle is present but lacks a cap, the machine will automatically stop or automatically reject the bottle. 3. The machine includes an empty bottle detection function; upon detecting an empty bottle, it will stop operation or reject the bottle. 4. The finished product outlet features a height detection system; bottles with crooked or improperly tightened caps are automatically rejected or trigger an alarm.

Upon completion of capping, the finished products are conveyed to a movable tray; once the tray is full, the user can transfer it to a sterilizer for sterilization.

1. Features a follow-up filling mechanism and a tracking-style capping mechanism, ensuring high operational efficiency.

2. Utilizes world-renowned electrical components from Delta, Mitsubishi, and Schneider, as well as pneumatic components from Taiwan’s Airtac; this ensures a low failure rate, stable and reliable performance, and a long service life.

3. Filling volume and speed are easily adjustable, and the machine is equipped with a “no bottle, no fill” function. The unit features a centrally mounted SUS316 holding tank, facilitating convenient material replenishment and ensuring stable, continuous filling operations.

4. The filling process employs high-precision peristaltic pumps for metering, delivering high filling accuracy while allowing for simple and convenient cleaning.

5. Controlled via a PLC and touch screen interface, the machine features variable frequency speed control and automatic counting capabilities; it is easy to operate, facilitates seamless integration into production lines, and boasts a high degree of automation.

6. The stainless steel components of the machine are primarily constructed from SUS304 material with a brushed surface finish. Parts that come into direct contact with the product are made of SUS316 stainless steel or medical-grade silicone tubing; these components are quick and easy to disassemble for cleaning, fully complying with food hygiene and safety standards.

The entire production line employs a cam-driven, multi-disc linkage and tracking-style filling mechanism, allowing bottles to undergo metered filling while in motion—eliminating the need for any pauses or waiting. This design stabilizes production capacity at 180–200 bottles per minute, representing an increase of approximately 40% compared to intermittent-motion solutions. We opted against a full-servo electronic cam system because, in such high-speed operating environments, established mechanical linkage mechanisms offer superior reliability and lower maintenance costs.

The bottle-washing station is independently equipped with a negative ion generator and a 0.2μm air filtration system; the rinsing medium itself undergoes purification treatment before coming into contact with the inner walls of the bottles, thereby aligning with GMP guidelines regarding particulate control. All components in contact with the product are constructed from SUS316L stainless steel and medical-grade silicone tubing; disassembly and reassembly require no tools, and cleaning when switching product varieties leaves no dead spots, effectively eliminating the risk of cross-contamination.

The stated filling accuracy is ±1%; this falls within the industry- standard range for peristaltic pumps operating at a 30 mL dosage, and our factory testing confirms that actual performance remains within this tolerance. The capping mechanism utilizes a servo- driven system with torque parameters configured digitally via a touchscreen interface. Integrated with a bottle-height detection station, the system automatically rejects bottles that are missing caps, have misaligned caps, or are insufficiently tightened, maintaining a consistent finished product pass rate of over 99.5%. We do not make claims regarding accuracy levels we cannot achieve; however, we guarantee that the performance levels we *do* promise can be fully verified on-site.

This production line is custom-designed to precisely match the client’s specific bottle type, and the height of the entire machine is fully adjustable. Prior to shipment, the system undergoes comprehensive integrated testing using the actual bottles, caps, and liquid products provided by the client; a video of the operation is recorded and submitted for final approval. Upon delivery to the client’s facility, the equipment is ready for immediate production simply by connecting the power and air supplies, requiring no further on-site commissioning. Additionally, a set of spare wear parts is included with the shipment to minimize waiting times for the initial procurement of replacement components.