Drinking Water Production Line
RO Water Treatment Process
Custom Complete Solutions for All Types of Packaged Drinking Water
From PET bottles, stand-up pouch water and glass bottles to disposable large barrels and recyclable gallon jugs, Zhonglian Machinery delivers fully customized packaged drinking water production lines to match every one of your production demands. Whether you manufacture spring mineral water or purified water, our tailor-made integrated water treatment and filling systems are engineered precisely based on your raw water conditions and finished product standards, supporting diversified packaging formats with stable, high-efficiency full-process equipment.
Comprehensive Advantages of the Production Line
- Wide Compatibility: One production line supports sachet pouches, PET bottles, glass bottles, disposable barrels and recyclable gallon barrels, and easily switches between purified water, mineral water and other drinking water products.
- Controllable Quality: Fully enclosed production throughout the process. Multi-stage RO purification and double sterilization ensure that finished water meets drinking water hygiene standards, and precise filtration guarantees clear water quality without impurities.
- User-friendly Operation: Touchscreen human-machine interface with visual parameter adjustment and real-time water quality monitoring, easy to master even for new operators. The system supports automatic operation with minimal manual intervention.
- Flexible Capacity: Modular equipment configuration to match small workshops and large-scale water plants, with a wide range of capacity options from 2,000 to 36,000 bottles per hour to meet different investment scales.
- Convenient Maintenance: The food-grade stainless steel body is easy to clean and corrosion-resistant, with universal spare parts and low later maintenance cost. The fully matched CIP cleaning system ensures long-term hygienic and stable production operation.
Main Packaging Formats
The production line features strong compatibility and flexible switching between packaging formats, meeting demands of retail supermarkets, catering, community distribution and other market channels:
Pouch Water
200–1000ml | Low-cost portable flexible packaging
PET Bottled
330ml–1.5L | Light shatterproof mass-market packaging
Glass Bottled
250–1000ml | High-end airtight premium water packaging
Disposable Barreled
5L–20L | Single-use large capacity household barrel
Recyclable Gallon Barrel
18.9L | Reusable eco office & residential barrel
- Small Sachet & Spout Pouch Water: Cost-effective portable packaging, including 200–500ml standard sachets and 250–1000ml stand-up spout pouches. Lightweight with low packaging cost, it is widely used in community retail and emerging markets, with a production capacity of 3,000 to 30,000 pouches per hour.
- PET Bottled Water: The most mainstream packaging on the market, covering 330ml, 500ml, 1L, 1.5L and other standard specifications. Lightweight, shatter-resistant and easy to transport, it matches all specifications of 3-in-1 monoblock fillers with a capacity of 2,000 to 36,000 bottles per hour.
- Glass Bottled Water: Premium packaging with excellent sealing performance and high-end appearance, mostly used for high-end mineral water and spring water products. Matched with dedicated bottle washing and capping equipment, it delivers superior product display effect and long shelf life.
- Disposable Barreled Water: Large-volume packaging ranging from 5L to 20L, mostly used in households, catering outlets and office venues. With lightweight disposable barrels and stable sealing performance, it avoids cross-contamination of recycled containers and adapts to modern household drinking water demand.
- Recyclable Gallon Barreled Water: Reusable 5-gallon (18.9L) barreled packaging, equipped with a complete barrel external & internal cleaning and disinfection system. Eco-friendly and cost-effective for repeated recycling, it is the classic solution for office and residential building water delivery business.
Packaged Drinking Water Production Line & Production Process Guide
Packaged drinking water, represented by purified water, natural mineral water and spring water, is one of the most demanded beverage products worldwide with stable market demand. Zhonglian Machinery supplies fully automatic packaged drinking water production lines integrating water purification, sterilization, filling and packaging. With mature RO membrane treatment technology and reliable aseptic filling process, the lines are compatible with multiple packaging formats and cover capacities from small-batch to large-scale manufacturing, widely applied in water plants of all scales.
RO Reverse Osmosis Water Treatment Process Flow Chart
I. Core Production Process
The production line adopts the industry-standard RO purification + aseptic filling process with compact workflow and full automatic control. Five core procedures ensure stable water quality, hygienic safety and product consistency:
1. Raw Water Pre-Treatment
Raw water goes through multi-stage preliminary purification including quartz sand filtration, activated carbon filtration, sodium ion softening and precision filtration to remove sediment, residual chlorine, suspended solids and calcium/magnesium ions. This process reduces water turbidity and hardness, prevents scaling and clogging of downstream RO membranes, and lays a reliable foundation for the core reverse osmosis purification.
2. RO Reverse Osmosis Purification
As the core purification stage, multi-stage RO membranes separate dissolved salts, heavy metals, bacteria, viruses and organic impurities from water under high pressure, with a desalination rate of over 98%. The produced pure water fully meets WHO and national drinking water standards. The system is equipped with CIP cleaning function to maintain stable membrane performance and long service life.
3. Sterilization & Fine Filtration
Purified water is processed with combined UV and ozone double disinfection to thoroughly eliminate microorganisms and bacteria, while optimizing water taste and extending product shelf life. Terminal precision security filtration is set before filling to intercept trace impurities that may be carried in pipelines, ensuring 100% sterile and clean water delivered to the filling section.
4. Aseptic Filling & Sealing
The 3-in-1 monoblock filler integrates container rinsing, gravity filling and screw capping in a fully enclosed aseptic environment. It completes container cleaning, quantitative filling and tight sealing in one continuous process, with precise liquid level control and constant-torque capping to avoid secondary contamination. Different filling heads can be configured for bottles, barrels and pouches to match various packaging forms.
5. Finished Product Packaging
Filled products enter the downstream packaging process: first, light inspection rejects defective products with abnormal liquid level, leaking caps or visible impurities; then container surfaces are air-dried to remove water stains; after that, date coding, sleeve labeling or self-adhesive labeling are completed in sequence; finally, products are grouped via shrink wrapping or case packing and palletized for warehouse storage, forming market-ready finished products.
Process diagram of packaging drinking water production line equipment
Main Equipment & Performance Features
The entire production line is mainly made of food-grade 304/316 stainless steel, with corrosion resistance, no sanitary dead corners and easy cleaning. Core electrical and pneumatic components are sourced from internationally renowned brands. Equipped with a PLC control system and touchscreen operation interface, it achieves a high degree of automation. It is also fitted with comprehensive safety devices including overload protection, automatic stop upon bottle jamming and cap shortage detection for safe and stable equipment operation.
It consists of quartz sand filters, activated carbon filters, sodium ion softeners, precision filters and raw water tanks. The system effectively removes large-particle impurities, residual chlorine and hardness ions from raw water, protects core RO membranes and extends the service life of the whole water treatment system.
It consists of high-pressure pumps, RO membrane housings, membrane elements, online water quality monitors and CIP cleaning units. It achieves deep desalination and purification of raw water with stable effluent quality, and is the core equipment to ensure that finished water meets drinking water standards.
It consists of UV sterilizers, ozone generators, ozone contact tanks and terminal precision filters. It realizes double sterilization of purified water, controls microbial indexes strictly, and provides a sterile and stable water source for the filling process.
It includes fully automatic / semi-automatic bottle blowers, bottle unscramblers, barrel washing machines and pouch feeding equipment. It realizes integrated container forming, sorting and cleaning, and is compatible with bottles, barrels and pouches of various specifications.
It integrates container rinsing, aseptic filling and capping, with linear and rotary structures available in multiple configurable models. It is equipped with high-precision filling valves and magnetic constant-torque capping heads, and supports quick format changeover for stable, efficient production of different packaging types.
It includes light inspection equipment, air dryers, inkjet / laser coders, sleeve labeling machines, fully automatic shrink wrappers and case packers. The fully automatic workflow ensures neat packaging and clear product identification for all types of packaged drinking water.
It includes air conveyors for empty bottles, belt conveyors for semi-finished & finished products, and dedicated conveying lines for barrels and pouches. It realizes seamless and stable material delivery between all processes and improves the overall operating efficiency of the production line.
Packaged Drinking Water Production Line Investment Reference Table
| Product Type | Investment Budget (USD) | Hourly Capacity (units) | Daily Output (8h shift, units) | Operators Required (persons) | Payback Period (months) |
| PET Bottled Water | 80,000 – 150,000 | 2,000 – 4,000 | 16,000 – 32,000 | 3 – 4 | 12 – 18 |
| PET Bottled Water | 200,000 – 500,000 | 6,000 – 12,000 | 48,000 – 96,000 | 4 – 6 | 10 – 15 |
| PET Bottled Water | 600,000 – 1,200,000 | 15,000 – 36,000 | 120,000 – 288,000 | 6 – 10 | 8 – 12 |
| Stand-up Pouch Water | 50,000 – 100,000 | 3,000 – 6,000 | 24,000 – 48,000 | 2 – 3 | 10 – 16 |
| Stand-up Pouch Water | 120,000 – 300,000 | 8,000 – 15,000 | 64,000 – 120,000 | 3 – 5 | 9 – 14 |
| Stand-up Pouch Water | 350,000 – 800,000 | 18,000 – 30,000 | 144,000 – 240,000 | 5 – 8 | 7 – 11 |
| Glass Bottled Water | 100,000 – 180,000 | 1,500 – 3,000 | 12,000 – 24,000 | 4 – 5 | 14 – 20 |
| Glass Bottled Water | 250,000 – 600,000 | 4,000 – 8,000 | 32,000 – 64,000 | 5 – 7 | 12 – 18 |
| Glass Bottled Water | 700,000 – 1,500,000 | 10,000 – 20,000 | 80,000 – 160,000 | 7 – 12 | 10 – 15 |
| Disposable Barreled Water | 60,000 – 120,000 | 1,000 – 2,000 | 8,000 – 16,000 | 3 – 4 | 12 – 18 |
| Disposable Barreled Water | 150,000 – 350,000 | 3,000 – 6,000 | 24,000 – 48,000 | 4 – 6 | 10 – 16 |
| Disposable Barreled Water | 400,000 – 900,000 | 7,000 – 15,000 | 56,000 – 120,000 | 6 – 10 | 8 – 14 |
| Recyclable Gallon Barreled Water | 80,000 – 150,000 | 600 – 1,200 | 4,800 – 9,600 | 4 – 5 | 14 – 20 |
| Recyclable Gallon Barreled Water | 200,000 – 450,000 | 1,500 – 3,000 | 12,000 – 24,000 | 5 – 7 | 12 – 18 |
| Recyclable Gallon Barreled Water | 500,000 – 1,000,000 | 3,500 – 6,000 | 28,000 – 48,000 | 7 – 12 | 10 – 15 |
Disclaimer: This table is for reference only. Actual investment amount, production capacity, operating cost and payback period may vary significantly according to raw material prices, local labor costs, market demand, equipment configuration details and other actual operating conditions.
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