Tongda Machinery


Gallon Water Bottle Blow Molding Machine

PC gallon buckets are drinking buckets with a very high recycling rate in the market. Drinking water is a necessity in our lives, and drinking buckets are also a product with very large supply and demand on the market. The company has 20 years of experience in the machine specializing in the production of PC gallon buckets. We will also customize the machine for you with the new biodegradable material trtain drinking bucket.
  • Save time: high machine speed, high output
  • High quality: smooth surface, uniform wall thickness
  • Cost saving: The scrap rate is only 30%, and the energy saving of the whole machine can reach 20%
  • Personalization: Safety door color choosing and multi language HMI service
  • Cost Saving: the machine is energy-saving

What is a gallon water bottle?

Gallon barrels are containers with gallons as the unit of measurement. They are mainly used for bottled water, barreled oil, etc. The materials used include PET, PE, etc., which meet food-grade material standards and can be used to hold food and beverages. The shapes vary from square to round, and can also be customized.

What is the difference between Stainless steel bottle and plastic bottles?

The main raw materials of plastic buckets are polyethylene, polypropylene and other plastic products. They are usually lighter, look childish and not strong enough. The stainless steel barrel is made of stainless steel, with a smooth and bright surface and is relatively durable. Both materials have their own advantages and disadvantages, and the selection needs to be considered based on specific needs.

Commonly used materials for five-gallon bottled water

Plastic gallon water bottle:
Plastic bottled water is a common material for five-gallon bottled water. This material is lightweight, easy to carry, easy to store and transport, and can also avoid the possible dangers of glass products during transportation, so it is very popular among consumers. Commonly used plastic materials include polypropylene (PP), polyethylene (PE), etc.

Stainless steel gallon water bottle:
In addition to plastic materials, five-gallon barrels of water are often made of stainless steel. Stainless steel is environmentally friendly, safe and reliable, has certain resistance to oxidation and corrosion, can ensure the quality of water remains unchanged during storage, and is suitable for long-term storage. In addition, stainless steel can also effectively reduce secondary pollution and is more beneficial to our health.

Which is better? Plastic gallon water bottle or stainless steel gallon water bottle?

Plastic gallon water bottle



Lightweight material, easy to carry, easy to store and transport

Easy to age and deform, short service life

Stainless steel gallon water bottle

Stainless steel is environmentally friendly, safe and reliable, and has certain resistance to oxidation and corrosion.

Stainless steel products are relatively heavy, difficult to carry, and expensive

What are the raw materials of plastic gallon water bottles?

The main raw materials for the production of plastic barrels are polyethylene and high-density polyethylene, referred to as PE and HDPE. Polyethylene is recognized as the best material for food contact in the world. It is non-toxic, tasteless and odorless, and complies with food packaging hygiene standards. Polyethylene film is light and transparent, has moisture-proof, anti-oxidation, acid and alkali resistance, average air tightness, and excellent heat sealability. It is the most used and most important material for plastic packaging and printing. High-density polyethylene is polymerized at low pressure and is also called low-pressure polyethylene. It is milky white. The blow molding method can be used for processing. The plastic barrel made is heat-resistant, retort-resistant, cold-resistant and freezing-resistant, has good moisture-proof, gas-proof, and insulating properties, and is not easily damaged.

What is a blow molding machine?

A blow molding machine is a plastic processing machine. After the liquid plastic is sprayed out, the wind blown by the machine is used to blow the plastic body into a mold cavity of a certain shape to make the product. Specifically, the blow molding machine can process a variety of containers such as plastic barrels, plastic bottles, plastic toys, plastic cans, and plastic beverage straws. At present, blow molding machines have been widely used to produce various thin-shell hollow products, chemical and daily packaging containers, and children’s toys.
Gallon Water Bottle Blow Molding Machine

Classification of blow molding machines:
Blow molding can basically be divided into two categories: extrusion blow molding and injection blow molding
The main difference between the two is the preparation of the parison, while the blow molding process is basically the same. Developed on the basis of these two molding methods are: extrusion-stretch-blow molding, injection-stretch-blow molding, and multi-layer mirror molding.

Blow molding machine uses:
Plastic varieties used for blow molding include polyethylene, polyvinyl chloride, polypropylene, polystyrene, linear polyester, polycarbonate, polyamide, cellulose acetate and polyacetal resin.
1.High-density polyethylene accounts for the first place in consumption. It is widely used in packaging of food, chemicals and liquid processing. High molecular weight polyethylene is suitable for manufacturing large fuel aldehyde tanks and barrels, etc.
2.PVC is widely used in the packaging of cosmetics and detergents because of its good transparency and air tightness. With the development of non-toxic polyvinyl chloride resin and additives, as well as the development of stretch blow molding technology, the use of polyvinyl chloride containers in food packaging has increased rapidly, and has begun to be used in the packaging of beer and other beverages containing carbon dioxide gas. .
3.Linear polyester material is a new material that has entered the field of hollow blow molding in recent years. Because its products have the advantages of glossy appearance, excellent transparency, high mechanical strength, good preservation of items in the container, and no environmental pollution during waste incineration, packaging bottles have developed rapidly, especially Most widely used in pressure-resistant plastic food containers.
4.The usage of polypropylene is also increasing year by year due to the modification of its resin and the advancement of processing technology.

Advantages of blow molding machine:
1. Plastic containers processed by blow molding machines have the advantages of high thickness, corrosion resistance and wear resistance.
2. Plastic containers made by blow molding machines are relatively cheap, which can reduce daily life costs.
3. Fast processing speed and high efficiency.

What is the operation process of the blow molding machine?

1. Turn the main power switch of the blow molding machine and single-screw extruder clockwise from the off state to the on state.
2. Press the power button on the control panel of the blow molding machine to start the blow molding machine.
3. Press the reset button on the control panel of the blow molding machine.
4. Clockwise (turn the blow molding machine power switch on the control panel from its off position (o) to its on position.
5. Set the temperature of each part of the extruder barrel on the control panel of the extruder.
6. Set the temperature of each part of the die on the control panel of the blow molding machine.
7. Touch screen on the blow molding machine. Set parameters for each step of bottle blowing.
8. Add the material into the funnel of the extruder, and then rotate the funnel to the feeding working position.
9. After all parts have reached the set temperature, wait about 15 minutes to ensure that the temperature is stable.
10. Press the start button on the extruder control panel to start the screw, then turn the screw speed control knob on the extruder control panel to set the screw speed.
11. Press the start button on the control panel of the blow molding machine to start the electric pump.
12. Control panel of rotary blow molding machine. The mode selector opens to switch to fully automatic working mode.
13. After the material flowing out of the die reaches the appropriate length, press the start button on the control panel of the blow molding machine to start the blow molding cycle.

Application of intelligent technology in bottle blowing machines:

1.Abnormal detection and early warning: The intelligent bottle blowing machine is equipped with various sensors and monitoring systems, which can detect abnormal conditions in the production process in real time, such as excessive temperature, abnormal air pressure, etc. Once an abnormality is detected, the system will immediately issue an alarm and automatically shut down to avoid damage to equipment and product quality issues.

2.Remote monitoring and management: The intelligent bottle blowing machine is equipped with a remote monitoring system, which can realize remote monitoring and management of the equipment. Production personnel can monitor the operating status and production status of the bottle blowing machine anytime and anywhere through mobile phones or computers, handle abnormal situations in a timely manner, and improve production efficiency.

3.Application of manipulators: Manipulators are usually controlled by automated control systems and can realize automated operations through programming and sensor technologies. The control system can accurately control the movements of the robot to adapt to the production needs of bottles of different sizes and shapes.

How to choose a plastic gallon water bottle blow molding machine?

The bottle blowing machine is a piece of equipment widely used in the production of plastic bottles. It can heat and blow plastic particles into plastic bottles of various shapes. If you are considering purchasing a bottle blowing machine, here are some things you need to pay attention to.

1. Understand the types of bottle blowing machines
There are many different types of bottle blowing machines, including fully automatic bottle blowing machines and semi-automatic bottle blowing machines. When choosing a bottle blowing machine, you need to decide which type is best for your production based on your needs and budget.
2. Pay attention to the capacity and size of the bottle blowing machine: The capacity and size of the bottle blowing machine are also factors that need to be considered when purchasing. If you need to use the bottle blowing machine in large quantities, it is recommended to choose a machine with a larger capacity, which can improve production efficiency.
3. Confirm the ease of use of the bottle blowing machine: When purchasing a bottle blowing machine, pay attention to the ease of use of the machine. A good bottle blowing machine should have a simple and easy-to-understand operating interface for users to get started. At the same time, you should also consider whether the cleaning and maintenance of the machine are convenient, which can reduce the trouble of daily use.
4. Consider after-sales service and technical support

Choosing a bottle blowing machine that suits you can bring great convenience to your life. You need to know whether the supplier provides timely after-sales service and technical support so that any problems encountered during use can be solved promptly.

Purchasing a bottle blowing machine is a decision that requires careful consideration. You need to understand the various types of bottle blowing machines and consider factors such as production capacity, equipment quality and performance, as well as after-sales service and technical support.

What are the after-sales services of plastic gallon water bottle blow molding machine?

  • Installation and debugging services: Provide professional installation and debugging services to ensure that the equipment is installed correctly and put into production smoothly.
  • Operation training: Provide training for operators to teach the correct operation methods and maintenance knowledge of the equipment to ensure the safe operation of the equipment.
  • Regular maintenance: Provide regular maintenance services to check the operating status of the equipment and ensure that the equipment is in optimal working condition.
  • Spare parts supply: Provide original or compatible spare parts supply services to ensure equipment maintenance needs.
after-sales services of plastic jerrycan blow molding machine
after-sales services of plastic jerrycan blow molding machine
  • Remote technical support: Provide remote technical support services to help solve problems in equipment operation and maintenance.
  • On-site service: Provide on-site repair services when needed to quickly resolve equipment malfunctions or issues.
  • Upgrade and modification services: Provide equipment upgrade and modification services according to customer needs to update equipment technology and performance.
  • Warranty period: Provide a certain period of warranty service to cover equipment failures or problems.
  • 10 Main Steps to Product 5gallon PC Barrel

    1: Set heating temperature 160,1 hour later,increase them to 220. 1 hour later again,increase them to normal temperature.Don’t forget to preserve heat for 1 hour.That means we need heating for 4 hours at all.
    It’s normal temperature during production:1-258 2-268 3-266 4-262 5-264 6-260 7-250 8-240 9-240 10-240 11-252 12-266
    2: Turn on the hopper dryer and heating synchronously.The temperature of hopper dryer should between 100~115℃(dryer should connect water and air).and you should dry the material for 3- 4 hours before production.
    Mold temperature controller should be started 1 hour before production.85-105 will be ok.Usually 90.It uses heat transfer oil.And the mold temperature controller needs cooling water.
    3: When you start main oil pump,the pump of cooling water must be turned on too.Check the temperature of oil tank,make sure it isn’t over 45℃.
    4: When turn on the screw, please make sure water/electricity/gas are all normal(gas pressure 0.8).The first pressurization should be 50,then check whether the screw is turning.The pressure of first shortage don’t over 200.After the storage is full, screw forward and injects, pressurizes slowly:400-600-800.Normally, the pressure of screw won’t over 900, so 850 will be ok.
    5: Under normal product pressure,the gauge should be at 2~2.5
    6: The speed of auto injecting should be controlled within 5s-7s,and the length should be controlled just right
    7: You’d better control the waste material at the mouth of the bottle within 10mm.The shorter the better.
    8: Under pressure 857,the gauge should show pressure at 2.
    Turn inward by using a special wrench , let the needle of that gauge stay at 2-2.5 while the screw is turning
    9: Here below are some reasons why there are black particles:
    Some impurities go into the screw through the exhaust vent,so we advice you to pull the material away by hand instead of using copper bar, because when you use copper bar to clean the material on the vent, it is highly possible that some material or some impurities go into the screw. Then it will cause black particles. Please check if temperature of the heater are REALLY same as what is shown on the temperature controller. You can use temperature thermometer to check it. Maybe the controller shows that Zone X is 280, but actually the heater is 300…. So have to check if temperatures are good. If both 1 and 2 are good, then try 3. It could be problem of the die head. Is there any abnormal or any unusual noise on the die head? If you can not confirm the die head is good, then you can remove die head, and keep extruding and injecting material to check if material which come out from the screw and not pass through die head is good or not. If the material is good, without black particles, then it should be problem of the die head. Then you have to clean the die head..
    10: Faced with parison nonuniform Adjust the graph on MOOG100. A way our technician usually use to find the point which needs change: As you know each point of the graph corresponds to a position on the bottle.When material come out from the die head you can use a marker pen to do marks on the parison.For example when the material comes out form the die head and the chart on the MOOG100 shows point20,40, can draw lines on the parison,then you can find the part of the bottle with its corresponding point.

    Contact Our Experts

    TONGDA Clients

    Successfully supplied Jerrycan blow molding machine lines to many countries around the world

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    Successfully supplied Jerrycan blow molding machine lines to many countries around the world

    Gallon Water Bottle Blow Molding Machine Models

    Model Product Size Output of HDPE Output of Product
    50-60pcs/h for 30L
    100-120pcs/h for 30L
    5 gallon


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