LiqPro-300 Automatic Liquid Hard Capsule Filling Machine

The LiqPro-300 is capable of liquid filling for hard capsules. The fill materials encompass not only liquid dosage forms—such as solutions, suspensions, microemulsions, and hot melts—but also allow for the filling of solid-liquid mixtures.
Featuring proprietary intellectual property and multiple patented technologies, the equipment offers significantly enhanced stability and safety. It enables new routes of administration for various drugs and addresses challenges in drug delivery, providing an ideal solution for pharmaceutical and nutraceutical companies developing formulations for highly potent or poorly soluble drugs.

Applications

1. Hard capsule alternatives to oily softgel capsules Fish oil, vitamin oil, plant essential oil, and volatile oils of traditional Chinese medicine.

2. Poorly soluble liquid pharmaceuticals Suspensions, microemulsions and highly active liquid drugs.

3. Compound combined formulations Dual-filling products combining liquid with pellets, or liquid with mini capsules.

4. High-end preparations with strict sealing requirements Special pharmaceutical liquids prone to oxidation and leakage, as well as premium formulations that require airtight sealing to retain active efficacy for long-term storage and transportation.

Main Technical Specifications

Actual output depends on capsule size, fill volume, product viscosity, filling temperature and operating conditions.

Product performance, features:

Precision Filling · Secure Sealing · Smart Operation · Rapid Cleaning

1. Smart HMI with Automatic Alarm System
The machine is controlled by operators using a touchscreen. If the machine starts to run low on capsules or liquid, it sends out an alarm and stops working. This helps prevent the machine from trying to fill empty capsules and saves time by avoiding unexpected stops.

2. Filling Precision <±2%
The machine uses special pumps to make sure it fills things with just the right amount of stuff. These pumps are really good at keeping the amount consistent, so it's always within a tiny margin of error. This means the machine can work reliably every day and it's easier to check that it's working properly.

3. Capsule Feeding Success Rate >99%
The machine has a special system to check the capsules. It uses a vacuum to hold them in place and special fibers to see if they are filled correctly. If a capsule is empty or not filled right, it gets rejected before it's sealed. This helps cut down on waste and reduces the amount of work that needs to be redone when the capsules are inspected. It's like a quality control check to make sure everything is just right.

4. Leak-proof Sealing via Stable Gel System
The sealing head is servo-controlled and adjustable to accommodate capsules of various sizes and materials. The gel tank features a closed-loop heating design to maintain stable viscosity, extend gel lifespan, and reduce cleaning frequency.

5. Easy Maintenance and Rapid Changeover
The molds can be rotated freely and taken apart without needing any special tools, making them easy to clean. The rotary table has 10 stations and is built to last for many years, but it does need to be checked and lubricated regularly to keep it running smoothly.

Core Structural & Technical Advantages

1. Patented Integrated 10-Station Rotary Disc

The turntable is integrally machined in one piece with zero splicing gaps, delivering reliable sealing performance. Separate moving tracks for upper and lower molds paired with oil & dust-proof double-lip sealing rings enable 3 years of maintenance-free, low-noise, high-precision operation.

Ten circulating stations handle all key steps including capsule splitting, filling, inspection, defective capsule removal, locking and sealing to run fully automatically without constant manual attendance.

2. Servo Ceramic Pump Filling System

High-precision ceramic pumps powered by servo motors maintain consistent dosing, limiting volume deviation to merely ±2%. The anti-corrosion ceramic body works well with oil solutions, suspensions and microemulsions. It also supports combined filling of liquid with pellets or tiny capsules to accommodate complex custom formulas.

3. Real-Time Fiber Optic Defect Inspection

Fiber optic sensors perform non-contact continuous detection during production. The machine automatically halts liquid injection once flawed or unsplit capsules are spotted, then kicks out defective units at the designated station. This cuts raw material waste and keeps finished product yield steady.

4. Servo Double-Roller Sealing Unit

Dual rubber gluing wheels controlled by servo motors support fine manual jog adjustment. The fully enclosed glue storage tank comes with heating and thermal preservation to stabilize glue viscosity. A two-stage gluing process fully coats the seam between capsule cap and body for complete leak-proof sealing, stopping liquid oxidation and leakage entirely.

5. Hanging 360° Rotatable Drying Mold

Capsules move into hanging drying molds right after sealing. Each mold rotates freely by 360 degrees, keeping capsules upright as they snake through the air-drying tunnel for even glue solidification. All molds can be detached quickly for size switching and deep cleaning, plus built-in air blow tubes stop capsules from sticking inside molds.

6. GMP-Compliant Sanitary Stainless Steel Build

Every component that touches liquid materials is crafted from mirror-finished 304 stainless steel with no hard-to-clean dead corners. Independent compartments for filling, sealing and drying prevent cross-contamination, fully meeting pharmaceutical GMP workshop requirements.