Automatic Eye/Ear Drop Filling Machine
High-Precision Monoblock Packaging System for Sterile Ophthalmic and Otic Solutions
In the pharmaceutical manufacturing sector, packaging small-volume sterile solutions requires an exceptional level of precision, hygiene, and mechanical reliability. The Automatic Eye/Ear Drop Filling Machine manufactured by Harsiddh Unimach Pvt. Ltd. is an advanced, high-performance monoblock system engineered specifically to meet these rigorous demands. By integrating the critical stages of liquid filling, inner plug insertion, and outer screw capping within a single, space-saving, and vibration-free structural frame, this machine minimizes human intervention and drastically reduces the risk of airborne contamination.
Designed to handle low-volume liquid doses ranging from 2ml to 30ml, this monoblock solution is perfectly aligned with global regulatory standards, including current Good Manufacturing Practices (cGMP) and CE guidelines. Whether your facility produces sensitive ophthalmic eye drops, otic ear solutions, or specialized nasal sprays, this system offers the repeatable accuracy and sterile compliance your production line requires.
The Monoblock Advantage in Sterile Pharmaceutical Packaging
Traditional multi-machine packaging lines require long conveyor setups to transfer containers from the filling station to the plugging and capping areas. For sterile ophthalmic products, these long transfer paths increase exposure to contaminants and heighten the risk of bottles tipping over.
The monoblock engineering from Harsiddh Unimach Pvt. Ltd. eliminates these risks through distinct structural advantages:
- Compact Footprint & Contamination Control: Combining three distinct operations on a single rotary indexer minimizes the open exposure time of the sterile liquid. The compact design is ideally suited for installation under standard Laminar Air Flow (LAF) hoods or within localized cleanroom environments.
- Vibration-Free Stability: Built upon a heavy-duty, robust chassis, the machine eliminates micro-vibrations that can cause small, lightweight plastic bottles to wobble or spill during high-speed indexing.
- Mechanical Synchronization: A centralized drive system keeps the filling pumps, plug placement arms, and capping heads perfectly synchronized, preventing line bottlenecks and reducing mechanical wear.
Operational Precision & Sequential Workflow
The efficiency of this automated monoblock system relies on a continuous, highly precise rotary indexing cycle. Each container is securely controlled from the moment it enters the machine until it is safely discharged.
[In-Feed Conveyor] ➔ [Rotary Star Wheel Indexing] ➔ [Precision Micro-Dosing] ➔ [Vibratory Plug Insertion] ➔ [Torque-Controlled Capping] ➔ [Out-Feed Discharge]1. Smooth In-Feed and Positioning
Sterile, empty plastic bottles are delivered via an inbound Stainless Steel slat conveyor. A custom-engineered rotary star wheel receives the containers, gently guiding them into individual pockets. This positive-handling mechanism ensures that lightweight eye drop bottles remain perfectly upright and precisely centered as they move through consecutive processing stations.
2. Ultra-Precise Volumetric Filling
Once positioned at the filling zone, specialized micro-dosing nozzles descend into the bottle necks. The machine utilizes high-precision volumetric filling pumps—such as pharmaceutical-grade ceramic rotary pistons or servo-controlled peristaltic pumps—to discharge the liquid dose. This system achieves an exceptional volumetric accuracy of ±1% or better, eliminating product giveaway of high-value active pharmaceutical ingredients (APIs).
3. Automated Inner Plugging
Immediately following the filling cycle, the star wheel indexes the open bottles to the plugging station. A heavy-duty vibratory feeder bowl automatically sorts, aligns, and feeds the plastic dropper plugs down a dedicated chute. A mechanized picking head extracts a single plug and presses it securely into the bottle neck, forming a tight, leak-proof primary seal before the container moves further.
4. Torque-Controlled Screw Capping
The plugged bottles proceed to the final station for outer closure. A second vibratory feeder bowl organizes the plastic screw caps and directs them down to a pick-and-place mechanism. The capping head captures the cap, places it onto the bottle threads, and tightens it. The capping head features an adjustable magnetic hysteresis torque clutch, ensuring that every cap is tightened to exact specifications without cracking the plastic threads or leaving the closure loose.
5. Safe Discharge and Out-Feed
The fully filled, plugged, and capped containers are guided out of the rotary star wheel and onto the discharge conveyor. From here, they are transported smoothly to downstream processing units, such as online labeling systems, cartooning machinery, or final inspection tables.
Key Technical Features & Engineering Excellence
- Premium Cleanroom Construction: All contact parts—including the product hopper, filling nozzles, and fluid pathways—are fabricated from superior Stainless Steel 316L or medical-grade polymers to allow for complete sterilization. Non-contact structures and enclosure panels are crafted from robust SS 304.
- Advanced PLC & Touchscreen HMI: Equipped with an intelligent Programmable Logic Controller (PLC) paired with a user-friendly Human-Machine Interface (HMI). Operators can easily modify parameters such as filling speeds, index timings, and batch counts, as well as store recipes for different bottle sizes.
- Intelligent Sensor Suite: Features an integrated “No Bottle – No Fill” and “No Bottle – No Plug/Cap” sensor network. If an empty pocket is detected in the star wheel, the corresponding nozzles and placement arms will not actuate, preventing liquid spillage and component waste.
- Tool-Less Changeovers: The rotary star wheel, guiding chutes, and capping jaws are engineered for rapid, tool-less changeovers. This allows production teams to switch between different bottle profiles (e.g., 5ml to 10ml) with minimal downtime.
Strategic Industry Benefits
Partnering with Harsiddh Unimach Pvt. Ltd. for your sterile packaging needs delivers measurable operational and business benefits:
- Strict Aseptic Integrity: The smooth, enclosed design prevents particulate accumulation and simplifies sanitization procedures, making it fully compatible with Clean-in-Place (CIP) and Sterilize-in-Place (SIP) protocols.
- High-Speed Volume Efficiency: Replacing manual handling with a fully synchronized monoblock drastically scales up your daily output, enabling high-throughput manufacturing without sacrificing dosage accuracy.
- Reduced Rejection Rates: Gentle bottle handling combined with torque-controlled capping means fewer damaged bottles, fewer loose caps, and significantly lower batch rejection rates during quality assurance inspections.
Technical Specification
| Specification | Details (Model: HLD-60) |
|---|---|
| Production Output | 30 to 60 Bottles / Minute |
| Bottle Size Range | 2ml to 30ml (Plastic or Glass) |
| Filling Accuracy | ± 1% |
| Filling Type | Piston Pump / Peristaltic Pump |
| Capping Type | Screw Capping with Torque Control |
| Contact Parts | Stainless Steel AISI 316L |
| Power Requirements | 1.0 H.P. Main Motor |
| Dimensions | Approx. 1800mm (L) x 1000mm (W) x 1500mm (H) |
Optimize Your Pharmaceutical Line with Harsiddh Unimach Pvt. Ltd.
At Harsiddh Unimach Pvt. Ltd., we understand that pharmaceutical packaging demands zero margin for error. Our Automatic Eye/Ear Drop Filling Machine provides the exact balance of mechanical stability, fluid accuracy, and sterile operation required to protect your product’s efficacy and your company’s reputation.
Enhance your manufacturing standards, eliminate contamination risks, and achieve seamless automation. For custom configurations, cleanroom integration advice, or to request a detailed technical proposal for your facility, contact our specialized engineering team today.
- Official Product URL: https://www.harsiddhunimach.com/product/automatic-eye-ear-drop-filling-machine/
- Inquiries & Technical Support: info@harsiddhunimach.com
Frequently Asked Questions
How does the machine ensure sterile and accurate filling of sensitive drops?
Precision is critical for ophthalmic products. The machine utilizes either volumetric syringes or peristaltic pumps (depending on the product's sensitivity) to achieve a filling accuracy of ±1%. To maintain sterility:
It features a "No Bottle – No Fill" sensor to prevent spills.
All contact parts are made of SS 316L.
The machine's slim-line design is optimized for operation under a Laminar Air Flow (LAF) unit to maintain a Class 100 environment.
Does the machine automate the placement of both the dropper and the cap?
Yes. This is a fully integrated "Monoblock" or linear system that includes:
Automatic Dropper/Plug Placement: A vibratory feeder sorts the inner plugs, and a mechanical "pick-and-place" or "press-fit" station inserts them into the bottle neck.
Automatic Capping: A second vibratory feeder supplies the screw caps, which are then tightened using a torque-controlled capping head to ensure a leak-proof seal without damaging the plastic threads.
How is the torque controlled during the capping process?
To ensure every bottle is sealed perfectly, the machine uses a Magnetic Torque Capping Head. This allows the operator to set a specific torque limit; once the cap is tightened to the required tension, the head slips, preventing over-tightening. This is essential for eye drop bottles to ensure the end-user can easily open the bottle while maintaining a hermetic seal during transit.
What are the key cGMP and safety features of this machine?
As a cGMP-compliant unit, the Harsiddh Eye/Ear Drop Filling Machine includes:
Material Integrity: Non-contact parts are SS 304, and the main frame is designed for easy wash-down and sanitization.
Safety Enclosure: A full acrylic or polycarbonate safety cabinet with interlock sensors stops the machine instantly if a door is opened.
Advanced Control: A centralized PLC with Touchscreen HMI provides real-time monitoring of production speeds, "No Bottle-No Cap" alerts, and batch counting.
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