The Automatic Purified Water Filling Line is an industrial-grade, integrated packaging system designed for rinsing, filling, and capping still purified drinking water into PET containers.
Engineered for continuous operation, this system coordinates bottle handling through a synchronized mechanical architecture. The core 3-in-1 monoblock can be integrated with upstream water treatment systems and downstream conveyance, coding, labeling, shrink-wrapping, and palletizing equipment to form a complete production line.
Standard Technical Specifications
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Technical Dimension |
Specification Range / Options |
|
Target Output (BPH) |
From 2,000 BPH to 24,000 BPH (customized per project) |
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Compatible Bottle Type |
PET bottles (round, square, or custom shapes) |
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Bottle Volume Range |
250 ml – 2,000 ml |
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Neck Finish Size |
Standard PCO 1881, 1810, or customized neck specs |
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Filling Technology |
Gravity Filling / Micro-Pressure Filling |
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Contact Material |
Food-grade SUS304 (or optional SUS316L for critical liquid zones) |
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Control System |
PLC-controlled with Color Touchscreen Interface |
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Drive & Pneumatic Components |
Industrial-grade motors, inverters, and pneumatic actuators |
System Architecture & Core Operations
An automatic purified water filling line converts treated water and empty PET containers into sealed bottled products through a synchronized sequence:
Empty Bottle Infeed & Air Conveyance: Empty PET bottles are guided into the filling zone via air conveyors, supported by neck-gripping mechanisms to protect bottle stability at high production speeds.
Automatic Rotary Rinsing: Bottles are inverted and sprayed internally with purified water or a specified rinsing medium, then drained before transferring to the filling station.
Gravity / Micro-Pressure Water Filling: Treated purified water is dispensed into the bottles using precision gravity or micro-pressure valves designed to maintain consistent liquid levels without foaming.
Automatic Cap Sorting & Capping: Plastic screw caps are oriented in an automated centrifugal sorter and applied tightly to the bottle finishes with adjustable torque control to prevent thread damage.
Typical Production Process Flow
Water Treatment Stage: Raw water passes through multimedia filtration, activated carbon, reverse osmosis (RO), and UV sterilization to meet bottled drinking water standards.
Core Filling Stage: Synchronized 3-in-1 monoblock execution minimizes bottle drops and transfer friction.
Post-Filling Stage: Residual surface moisture is removed via air knives prior to inkjet/laser date coding, followed by OPP/shrink-sleeve labeling and automated end-of-line packaging.
Key Engineering & Design Features
Monoblock Space Optimization: Combining rinsing, filling, and capping into a single compact rotary frame reduces floor space requirements and eliminates complex intermediate conveyors.
Neck-Handling Transfer System: Frictionless neck-transfer minimizes scratches on bottle bodies and allows fast format changeovers by simply replacing star wheels and guide rails for different bottle diameters.
Hygienic Fluid Pathways: Product contact piping and valves are fabricated from high-grade stainless steel with smooth internal finishes, designed to facilitate routine cleaning and sanitation procedures.
Intelligent Interlocks: Built-in sensor logic ensures automated safety protocols, including "no bottle, no fill" and "no cap, no sealing" protections to minimize liquid waste and machine jams.
Application Scope
Purified Drinking Water
Reverse-osmosis treated or mineral-free table water.
Spring & Mineral Water (Non-Carbonated)
Naturally sourced still waters requiring hygienic handling.
Flavored Still Water
Low-viscosity, non-carbonated flavored beverages.
Frequently Asked Questions
Q: What is an automatic purified water filling line?
A: It is an automated bottling system that rinses, fills, and caps purified drinking water into PET bottles, with optional conveying, labeling, and packaging units.
Q: What types of bottles can the system handle?
A: The configuration is engineered for compatible PET bottle formats. Bottle volume, diameter, height, neck finish, and cap specifications must be confirmed prior to system design.
Q: Can the water treatment system be integrated?
A: Yes. A water treatment system is integrated as an upstream section based on source water analysis and finished water purity requirements.
Q: How are format changeovers handled?
A: Changeovers for different bottle sizes are executed by replacing specific change parts, such as star wheels and guide rails, designed for quick manual or semi-automated replacement.
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