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Water Filling Machine

What Is Water Filling Machine?

The water bottle filling machine is to fill pure water in PET bottles, gallon bottles, aluminum cans, and glass bottles.  We usually define water without sugar as bottled water. It consists of still water (purified water, mineral water, spring water, distilled water), soda water/sparkling water, and functional water.

100ml~2000ml Bottled Water Filling Machine

Principle of Water Filling Machine

The filling principle of the bottled water filling machine is atmospherical pressure filling/gravity filling. Gravity filling: When the filling machine tank pressure equals the atmospheric pressure, gravity filling takes place

The Structure of Water Filling Machine

Generally, a bottled water filling machine consists of a machine frame, a rinsing mechanism, a filling mechanism, a capping mechanism, a filling machine controller, a bottle conveyor system, and a piping system. 

For more details about the components of the bottled water filling machine, please click 

Bottle Washing Machine

Bottle washing machine consists of bottle washing clamp, upper turntable, guide rail, water distributer, protective cover, water spray device, water collecting tray. All parts in contact with the liquid is SS304 or SS316. The bottle wash clamp is integrally molded, and lubricating parts of the active part is from Igus. It is more durable than ordinary bottle washing clamp for 5 years.

Filling Machine

Filling machine consists of filling tank, filling valve, control ring, lifting device, etc. The liquid contact part is SS304 or SS316, and the thickness of the filling tank’s bottom plate is up to 30mm. The filling valve is Germany style and was manufactured by China’s top filling valve company.

Capping Machine

Capping machine consists of bearings, lifting worm gear components, transmission gears, capping heads, cams, machine reducers, etc. It is magnets torque, and the torque is adjustable. This capping machine is stable, and it has low cap scrap rate. When the cap type changes, only need to change capping head and seat. It is easy to adjust machine when change cap type.

Filling Process of Water Filling Machine

Air conveyor/conveyor sends bottles to star wheel. Star wheel sends bottles to bottle washing machine. There are bottle clamps on washing machine. Bottle clamps clamp the bottle neck and flips 180° along the guide rail to let the bottle mouth down. In the specific area of the bottle washing machine, washing nozzle sprays water into bottles to rinse the inner wall of bottles.  

After washing and draining, bottles flip 180° along the guide rail to let bottle mouth up. Star wheel sends washed bottles from washing machine to filling machine. The lifting device raises bottles under the action of the lifting cam. Bottles contact and press the filling valve, and then the filling valve spring opens the filling valve and starts filling. Filling stops automatically when the liquid level reaches the vent.  The lifting device lowers to let bottle leave filling valve.

Star wheel sends bottles to capping machine. The stop knife on the capping machine locks the bottle neck, keeping the bottle upright and preventing rotation. The capping head keeps the revolution and rotation on the capping machine, and realizes the action of cap grabbing, cap covering, cap screwing and cap releasing under the action of the cam. Star wheel sends bottles from the capping machine to the bottle conveyor. Bottle conveyor sends bottles to next machine.

Know More About The Bottled Water Production Line

Q1: Where Is The Water From?

Bottled water factories always get raw water from natural springs, boreholes, and tap water. Nowadays, seawater is also a big source because of the use of desalination technology.

natural springs

tap water


Desalinated seawater

Q2: How Does Carbonated Beverage Filling Machine Keep Constant Liquid Level in The Bottle?

The length of the vent decides the height of the liquid level. Keep the same vent length, bottle shape, and size, the liquid level is always at the same height.

The filling valve bottle mouth, Filling starts. Air in the bottle returns to the filling tank through the vent inner hole. When the liquid level in the bottle reaches the vent, the air circuit is cut off and stops filling the water. We can adjust the liquid level by changing the length of the vent.

Q3: How to Fill Multiple Bottles at Once?

Bottles with the same neck size, and the bottle diameter difference isn’t more than 5mm, one set of filling machine can fill them all.

If the bottle has the same neck size, but the bottle diameter difference is more than 5mm, we will need the bottle change parts. Each set of bottle change parts is customized according to the bottle size. The bottle change parts include the bottle star wheel and bottle fixing parts.

If the bottle neck size is different, we will need the change parts mentioned earlier. Moreover, all parts in contact with the bottleneck. For example, the bottle neck holder, clamp, the capping head, and the seat.

Q4: Can A Water-Filling Machine Fill Juice, Soda, And Other Drinks?

No. Because the filling principles of different liquids differ. For more information about different filling machines, please click

Q5: Can Plastic, Glass, And Aluminum Bottles Be Filled On One Machine?

No. Because different bottle and cap materials require different filling and capping mechanisms.

For instance, we fill plastic bottles with a bottleneck clamping system and glass bottles with a bottle bottom supporting system.

To customize your machine, in addition to the bottle material and size, you also need to tell us the cap material, such as plastic cap, crown cap, aluminum cap (short aluminum cap or high aluminum cap), twist-off caps, etc.

Q6: What Is The Speed Of The Bottled Water Filling Machine?

Speed range of small-bottle water filling machine: 1000-20000 bottles per hour based on 500ML bottles.

Speed range of large-bottle water filling machine: 200-4000 bottles per hour based on 5L bottles.

Speed range of large-barrel water filling machine: 100-3000 barrels per hour based on 19L barrels.

Q7: How Much Does It Cost For A Whole Bottled Water Production Line?

The cost of the production line depends on the production speed, automation requirements, bottle material, cap material, bottle volume, labeling manner, packing manner, and other factors. If you require an exact quotation, please provide us with the above information and your contact information, then we will make a detailed proposal for you.

Speed 5000 Bottles Per Hour. Bottle Volume 500 ml. A Whole Automatic Line Include Water Treatment, Bottle Blowing Machine, Filling Machine, Labeling Machine, Packing Machine, And Necessary Conveyors. The Cost Is Around USD100,000.

Q8: What Other Equipment Does The Water Filling Line Include?

In addition to washing, filling, and capping, the entire production line includes the water treatment system and the after-packaging system (labeling, date printing, packaging machine)

Plastic bottles usually use shrink labels and OPP labels.

Glass bottles are self-adhesive labels or bottle printed.

Plastic and glass bottles are available with ink printers and CO2 laser date printers.

Metal containers such as aluminum cans can use ink printers and fiber laser date printers.

If you are producing glass bottled beverages, a grab-type cartoning machine is a better choice. When the production line speed is low, manual packing is also an excellent choice with only one sealing machine. If the local carton packaging materials are more expensive, and there is not much restriction on plastic packaging materials, you can choose a shrink film packaging machine to save the cost of machines and packaging materials.

Q9: How Long Can I Get The Machine After Paying The Deposit?

The delivery time of a whole production line depends on the specific equipment, usually within 70 working days (including 30 days on the sea) after confirming the bottle design and receiving the deposit.

Q10: How Long Does It Take To Install A Whole Production Line?

The installation time of a whole production line mainly depends on the specific equipment and the preparation of the customer’s factory. The installation will take about 30 working days when water, power, gas, raw materials, and other required tools are ready in the customer’s factory. 

Q11: How Large A Workshop Should I Prepare For A Water Filling Line?

The floor area of a whole production line depends on the specific equipment, which usually needs 500-1000 square meters, bigger is better. After confirming the equipment, LINHO will design the factory layout for you for free.  

Q12: How Should I Maintain Water Filling Mahcines?

When delivery, LINHO will provide some free spare parts according to the equipment you ordered. If you want to buy more, we will sell to you at a cost price. 

In addition, LINHO’s equipment manual will also teach you how to maintain the equipment, including weekly, monthly, semi-annual, and one-year maintenance specifications.

3L ~20L Bottled Water Filling Machine

Principle of 5 Gallon Water Filling Machine

The filling principle of the 5gallon water filling machine is normal pressure filling/gravity filling. Gravity filling: When the filling machine tank pressure equals the atmospheric pressure, gravity filling takes place.

Structure of Bottle Filling Machine

The internal washing machine, filling machine, capping machine, and electric control part make up the 5gallon water filling machine.

Innternal Washing Machine

The internal washing machine consists of motors, bottle holders, chains, sprockets, shafts, washing nozzles, water pumps, water pipes, and water tanks.

Filling Machine

The filling machine consists of bottle-neck fixings, filling valves, water distributors, sensors, cylinders, and clean room air filters.

Capping Machine

The capping machine consists of a caps elevator, a caps unscrambler, a caps washing tunnel, a caps-sleeving device, and a caps pressing chain.

Control System

The electronic control system consists of a control cabinet, a touch screen, a button, a plug, a PLC, a frequency converter, a contactor, and an air switch.

For more details about the components of the 5gallon water filling machine, please check

Filling Process of Water Filling Machine

The internal washing machine can be independent or combined with a filling machine and a capping unit. The conveyor delivers the cleaned empty barrel to the automatic barrel loading and washing process. After the barrel-enter counter detects the quantitative empty barrel, the front barrel cylinder blocks the empty barrels on the conveyor belt, then the barrel-pushing cylinder pushes the empty barrels into the barrel-loading rack, which rises to make the barrels recumbent (the barrel mouth is aligned with the barrel support device), the barrel-enter cylinder then pushes the empty barrels into the barrel support device and resets. The empty barrel moves one station with the spindle motor chain, and in an inverted manner, then the barrel support device sprays water to flush the inside of the barrel mouth and barrel body. The flushing procedure mainly consists of hot alkaline water flushing, disinfectant flushing, circulating water flushing, and purified water/ozone water flushing. The washed barrels arrive at the barrel-out mechanism in a horizontal state.
The cylinder dials the washed barrels to the barrel turnover rack and turns it 90 degrees to make the barrels vertical with the filling conveyor. Once the barrels are in place, the barrel-pushing cylinder pushes the barrels out and resets.

The barrel-pushing mechanism pushes the washed barrels to the filling position, the drinking water enters the water distributors from the water tank via the water pump, and the water distributors distribute it to each filling valve. The filling valve begins to fill with water once the barrel-clamping device has located its center. After filling the water to a certain level, the filling stops, and the empty barrel pushes the full barrel into the conveyor belt to begin the subsequent round of filling.

The caps enter into the caps unscrambler by the caps elevator, after the caps-unscrambler arranges the caps, and delivers the caps into the caps sterilizing tunnel for caps washing. After washing and drying the caps, caps will enter into the caps-sleeving area by the caps tunnel, sleeving caps onto the barrel and pressing. After capping, the barrel water will go through the packing procedure by the conveyor.

Know More About The 5 Gallon Water Filling Line

Q1: What Type Of Barrel Should I Use To Fill The Water?

The material of 5-gallon plastic barrels on the market are mainly PET, PC, and PE. You can buy ready-made barrels locally or purchase correspondent plastic raw materials and barrel-making equipment to make your barrels. Different materials of the barrel, the cost of raw materials, barrel-making equipment, and the barrel service life is also different.

Q2: Is There Any Pre-Treatment Equipment Before Filling?

Before filling, pre-treatment includes label remover, cap remover, leak detector, external brushing machine, and internal washing machine. We can select the appropriate equipment based on the barrel’s status.
To meet sanitary requirements, we must clean the barrels before filling, including internal and external flushing. For the dirty recycling barrels, we can use a high-pressure washer

Q3: After Filling, What Packaging Equipment Is Available?

Following filling, packaging equipment includes a barrel mouth label machine, a barrel body label machine, a bagging packing machine, and a palletizer. The selection of the barrel body labeling machine mainly depends on the label size. To reflect the personalization, we can also choose a special-shaped label

Q4: My Barrel Is The Recycling Barrels With Slightly Different Sizes, Heights, And Diameters. Can We Put Them On One Production Line While Ensuring A Consistent Filling Liquid Level?

LINHO filling system adopts constant liquid level filling, which is compatible with 15L-19L barrels of different sizes in one production line and ensures consistent filling liquid level.

Q5: During Filling, Will There Be Water Overflow Resulting In Water Waste?

LINHO filling valve adopts closed-loop control of flowmeter and proportional valve to achieve no water hammer and overflow during filling.
The LINHO filling system adopts a frequency converter system, filling 60-80% of one barrel of water at high speed, then slowly filling the remaining water.

Q6: How Can I Be Sure That All Barrels Are In Good Condition And Have No Leaking Holes Before Filling Them?

In the pre-treatment before filling, LINHO provides a leak detector, which is professional equipment for the online detection of barrels leakage.
The latest leak detector from LINHO has solved the problem of the barrel deforming under pressure, resulting in no visible pressure change in the barrel and the failure of the pressure sensor to detect, improving equipment detection accuracy a lot.

Q7: How Does The Cap-Removing Machine Work When A Few Barrels Without Caps Are Mixed And Enter The Production Line?

The caps-remover of LINHO has a short cylinder stroke and high speed. The speed of a single-head caps-remove machine has increased from 600 to 1200 barrels per hour.
Additionally, the equipment’s de-capping mechanism uses pneumatic adjustment to overcome problems with barrel height and barrel mouth tolerance and significantly raise cap removal success rates.

LINHO caps-removing machines have the caps detection function, no caps, no cap-removing action.

Q8: How Does The Caps Label Remover Work When A Few Barrels With No Cap Labels Mix And Enter The Production Line?

The cap-label remover is an automatic removal device for the residual shrink label at the barrel mouth, which solves the difficulties of manual label removal at the barrel mouth and the problems of damage to the barrel mouth caused by the label removal.
It has the characteristics of saving labor, no damage to the barrel, detection of no label, no label, no operation, etc., and effectively protects the external cleaning of the barrel mouth.

Q9: Can We Open The Water Tank Of The Internal Washing Machine To Clean It?

The cleaning water tank uses stainless steel 304 material, has no sanitary dead angle, and has a filter device inside. It has manholes (for easy cleaning of the water tank inside), sampling valves, liquid-level pipes, and dosing ports, and all water tanks have automatic water replenishment.

For a hot alkali water tank, we adopt double-layer heat insulation cotton, and the heating mode uses a plate heat exchanger, with the medium of steam (171 ℃).

Q10: How Can We Ensure The Internal Cleanliness Of The Filling Machine?

According to customer specifications, the LINHO 5-gallon filling machine can be equipped with an FFU 100-grade clean filtration system.

The internal washing machine can also be equipped with an exhaust system to reduce the pollution, odor, and steam in the clean workshop. 

Q11: Is The Cap Label Shrink Using Steam Or Electric Heating?

LINHO provides both steam heating and electric heating for caps label shrinkage, customers can select one based on their needs, and both provide perfect shrinkage without label wrinkles.
For the steam heating, LINHO can offer a steam recovery channel to avoid dim in the workshop caused by too much steam and steam waste.

Q12: What Is The Film Material Of The Bagging Packing Machine? What Are The Material Requirements?

The 5gallon automatic bagging packing machine uses a full circle of film to pack the 5-gallon barrel, protecting the barrel’s external cleaning and the barrel wall from damage. It has a high film sealing success rate, a firm structure, stable performance, simple operation, and maintenance, and saves labor and material costs.

Film material:
1. PO (propylene oxide) is one of the most important derivatives of propylene, the general name for olefin polymers such as polyethylene, polypropylene, and butene. It is currently one of the most effective anti-corrosion materials.
2. Whole circle film length: 700-720mm;
3. Film single layer thickness: 0.006-0.015mm;
4. The maximum diameter of the film’s entire circle is 350mm, with no static electricity (refer to antistatic agent add 3%). 4. The film is tightly wound, and the diameter of the winding tube is greater than 80mm.

Q13: Is The Tray Taken And Placed Automatically Or Manually When The Palletizer Is Working?

Both Full-automatic and semi-automatic palletizers are available from LINHO. The automatic palletizer automatically takes and places the tray, whereas the semi-automatic palletizer requires a worker to take and place the tray.

Market of Bottled Water

The global bottled water market is growing at a CAGR of 6.1% during the forecast period 2020 – 2025.

The size of the Bottled Water market amounts to US217.66 billion in 2020 and it is expected to reach US240.29 billion in 2021.

Bottled Water Is Important

The fear of contaminated tap water lets people choose bottled water instead of ordinary water.
Potability and easy usage are the key points to drive the market in the next years.
Rising consumer health consciousness drives people to prefer still bottled water rather a sugary drinks.

Trend Of Bottled Water

Pure Water Is Still The Most Popular product which has more than 35% of the market share in 2020. Desalination plants are anticipated to tackle water scarcity. According to a United Nation report published in 2018, there are 16000 desalination plants provide pure water in 177 countries.
Soda Water/sparkling water has become widely popular in the world. It is anticipated to be the fastest-growing product with a CAGR of 11.7% from 2021-2028.

The Growing Demand for Functional Water is caused by the health and wellness trend. There is a big chance for the functional water to improve the development of the market.

The Impact of Covid-19

Cities Lockdown Caused the increased demands for bottled water. From the report of the International Bottled Water Association(IBMA), bottled water factories have expanded their production capacity to meet this demand.
The Setback of the Global Tourism Industry Caused The decreased sales of bottled water

Machines In A Bottle Filling Machine Line

View The Machines

What Material For Water Bottle Filling Machine Line?


PET bottle preform. This is a compact form of a bottle. It can be made to bottle by the bottle blowing machine. It is easy to get the preforms from any country. The price is up to the preform weight, neck size, raw material price, and market.
Buying ready bottles from the bottle supplier is also common. In this case, there is no need to buy a bottle blowing machine. This is a good way to start a 5 gallon bottled water line.

Metal cans and glass bottles are used in high-class brand water nowadays.


Plastic caps are usually for plastic bottles. The aluminum caps, crown caps, pull-ring caps are for glass bottles. Lids are for metal cans.

Plastic caps

aluminum caps

crown caps

pull-ring caps



Shrinking labels(PVC&PET) are popular for middle-scale bottle filling production lines while the opp labels are good for big bottle filling lines. Because the price of opp labels is lower than shrinking labels, but the opp labeling machine is more expensive than labeling shrinking machine. Some brands use sticking labels. Self-adhesive labels and glue labels are usually for glass bottles and made from paper.

Packing Material

Shrinking film packing and carton packing are the main packing types.

Please contact us to share your idea.

We will help you to set up the bottled water business no matter in machines, raw material, or the factory design.

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