We are a certified blowing mold manufacturer based on Hong Kong. Inox Cast is one of the largest manufacturer of blowing mold for more than 20 years. Throughout the years, we are dedicated to providing customers with the best products and services.
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In our factory, we are equipped with advanced engineering system for our production. We have CAE/CAM/CAD system to guarantee you an effective machining, evaluation, and control of product design throughout the whole mold production.
Aside from that, we are also integrated with modern design tool including Pro/E, SolidWorks, AutoCAD, mold flow mold advisor, complete CNC machines, and more. Thus, you can assure that we can provide you the highest quality products.
At Inox Cast, we have different types of blowing molds. Our wide range of blowing molds include liquid line blowing mould, slipper air blowing mold, water bottle blowing mold, and more. You can surely find the right blowing mold for your applications.
Additionally, we offer OEM services to your blowing mold orders. We can custom-made your blowing molds based on your exact needs, specifications, drawings, or samples. We can also personalize your orders with your logo to promote your brand.
We also have expert engineers for prototype, design, and manufacture your blowing molds. Inox Cast also supply blowing molds to different countries around the world. For your business or project, choose Inox Cast as your blowing mold manufacturer!
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If you have any question about blowing mold, you will find the answer right here.
This is because this guide covers all information you need to know about this blow molding tooling system.
Keep reading to learn more.
Blowing mold is a machine that is used to form and join together hollow plastic parts making them bottles.
You can use it to make plastic bottles or other void shapes.
Blowing mold is also used in the automotive industry in the production of auto parts.
A Blowing Mold Machine
Blowing mold is suitable for plastics that do not quickly degrade upon heating.
Blowing mold is appropriate for thermoplastics.
Most but not all plastics can be made using the blow molding process.
The plastics manufactured from blowing mold include; shampoo bottles, water bottles, plastic cups, plastic buckets, mugs, milk bottles, and many other plastic containers.
The materials best for blowing mold are either mild steel or aluminum.
Aluminum is light, soft, ductile, corrosion-resistant, and very conducive to heat and electricity.
Aluminum can also be easily colored to provide a highly decorative appearance.
Compared to other materials used for blowing mold, aluminum is cheaper in tooling costs.
Aluminum is easy to repair and change since it is a soft material.
However, aluminum is not suited for high volume or long production runs.
Aluminum is also not suitable for highly detailed features.
An Aluminum Blow Mold
Steel offers longer life to the mold and is capable of producing millions of high-quality parts.
Besides, steel has an brilliant stability of machinability, strength, and cost.
Steel tools have lower maintenance costs which reduce operational costs.
Steel offers more finishing options, some finishes can only be produced with steel molds.
Steel Blow Mold
Steel molds are however expensive, and difficult to repair when damaged during the production process.
Steel molds are more prone to defects and take longer to heat and cool, slowing production time.
You can make several products using the blowing mold, they include; shampoo bottles, watering cans, coolers, water bottles, stadium seating, jerry cans, milk bottles, and containers, plastic cups, plastic buckets, and other plastic containers.
Products Made From Blowing Mold Process
This plastic production method brought about a lot of advantages like fast manufacturing and high-volume outputs, meaning one can produce a lot of plastic containers.
Blow molding has allowed for products creation such as fuel tanks, seat support for vehicles, flower pots, and toy wheels.
This means machinery costs are low, hence making it easier and more cost-efficient to mold external threads or open-ended and massive parts, which can be cut up by opening a closed molding.
Using this generation will let you to lessen labor costs.
Extrusion blow molding works similar to traditional glass blowing, in which materials are blown through a long tube, creating products like light bulbs.
As for injection blow molding, it produces a lot of containers, where melted polymers are injected into the blow mold instead of being blown through by air.
It has allowed for widespread growth in production competencies, permitting manufacturers to produce extra portions in only a quick period.
Making use of machines that accept 3D moldings.
3D blow molding is an automated production technique that permits minimal flash around the material, seamless part incorporation, and increased production speed.
A 3D Blow Mold Model That Increases Production Speed
Blow molding has taken the plastics arena to another stage with fast production.
That is, excessive volumes of manufacturing that allowed us to produce receptacles at a lower cost for consumers in the world.
However, it also comes with some disadvantages listed below;
Blow molding depends on a lot of gallons of petroleum to be able to produce plastic products.
As oil is an essential factor in thermoplastics that are becoming automated.
And more streamlined, the generation has emerge as an ongoing risk to the diminishing oil supply within world.
Blow molding relies so much on petroleum and is an essential part of producing a polymer, which can destroy the environment. Other than contributing to the collapsing oil resources, it makes plastic that does not decompose. It cannot get rid of the environmental risks its products deliver but will add to plastic production.
Blow molding would need more resources, the process could not be streamlined, thus requiring a lot of production methods.
Blow molding is limited to hollow forms such as bottles and plastic containers.
Air pressure is critical to the technique and may come across difficulties with wall thickness that is tough to govern.
Despite the fact that this technology already uses automation to produce large quantities of merchandise, it is nevertheless constrained to hollow forms.
Considering that thickness should be precise, containers with unique dimensions can result in wasted material.
The blow molding procedure entails mixing, melting, and pushing plastic to form it right into a tube known as a parison, which you use to make the part.
Contact us to discuss your requirements of Automatic Blow Molding Machine. Our experienced sales team can help you identify the options that best suit your needs.
A mold is used to make the form you require. A mold has two halves that are closed around the molten parison.
Air is then blown into the inside of the parison to expand the molten plastic towards the mold surface.
The mold is chilled to set the plastic to the new form of the mold.
The molded plastic element is then eliminated from the mold, separate the product from excess parison fabric, then end the product.
How The Plastic Blow Molding Works
The blow mold has several parts, they are;
1. The feed from the extruder – extruder is a machine made up of cylinders and barrels where plastics are heated.
The feed from the extruder is given as input into the blow molding machine.
2. Melted plastic – is an intermidiate for the making of void plastic components.
3. Extruder head – the melted plastic is sent to the extruder head and then passed through other channels.
4. Air tube – used to pressurize the air when the molten plastic enters the mold cavity and is about to bulge.
5. Parison – is a hot plastic with a tube shape with a hole at one end through which compressed air can pass.
6. Mold cavity – has patterns where you can deposit molten plastics and solidification takes place, then the final product is obtained.
You can use blow molding in several industries which make plastic products such as;
An Automatic Blowing Mold Machine
When buying a blowing mold, there are certain factors you should consider to ensure you purchase one that is effective and would last long.
Listed below are things to consider when buying blowing mold;
Mold tools are prone to damage and corrosion if you don’t maintain them properly.
The maintenance of molds starts from where you store the mold to how you use it.
Do a maintenance check on the mold regularly, even if it is working.
The following are some of the ways you should maintain a blowing mold;
The common defects when using blowing molds include;
Flash Defect
Rocker Bottom Defect In A Blowing Mold Part
The common surface finishes for blowing mold include;
A multi-cavity mold has more than one cavity of the same part and produces more than one part per production cycle.
A multiple cavity mold is advantageous when you need many identical parts within a set time frame.
It produces more parts faster if you compare it to a single cavity mold.
A multiple cavity mold requires a more substantial upfront investment.
A multiple cavity mold is more cost-intensive since they require more material, labor, and energy resources.
A Multi Cavity Mold
Maintenance costs and risks are higher with multiple cavity molds.
If one cavity breaks or has a defect, the whole mold becomes unusable which can impact the whole production time.
A multiple cavity mold has a more substantial lead time as they take longer to create.
Buying blowing mold from China can be very advantageous.
Most people ship their products from China.
They are reliable when it comes to the manufacturing of products.
Here are some of the reasons you should buy blowing mold from china;
1. High output within a short time
Many manufacturers in China are known for producing many products within a short period. To ensure they do not take very long,they have many people working on the product.
2. Lower production cost
Mold manufacturers from China offer quality products with a low production cost. They offer low prices for quality products and also have very many discounts.
3. Fast access to opportunities and market
Buying from China will give you quick access to opportunities and markets.
You will be able to market your products locally and establish a supply chain providing you with access to a larger market.
Blow molding produces hollow containers such as bottles, injection molding produces solid pieces like plastic plates.
The costs of blow molding are relatively lower compared to injection molding.
Blow molding machinery costs are also low.
Blow molding is a one-piece construction meaning there is no need to connect part halves to achieve shapes that injection molding cannot produce.
Compared to blow molding, injection molding is detailed and is a highly engineered tooling with multi-cavity mold options.
More Resources:
Custom Die Casting
Plastic Die
Precision Mold
Customs Aluminum Mold
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If you want to learn more, please visit our website Plastic Bottle Moulding Machine.