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Updated Feb 13, 2025

Krones Pacific | Food Processing Equipment
Krones offers lines for the beverage industry and food producers: process technology, filling technology, packaging machines, all the way through to IT solutions. Every day, millions of glass bottles, cans and PET containers run through a Krones line. As a supplier for complete systems, Krones provides breweries, beverage bottlers and food producers all over the world with ...

Krones Blow Moulding Machine | Contiform 3 Pro

Ambitious technology

Blow Molding Machine Buying Guide

Find and buy an extrusion and blow molding machine from verified suppliers on IndustrySearch. An extrusion and blow molding machine is a machine used to produce a broad range of plastics including PP, PC, PVC, HDPE, PETG, and bottles that need multi-layer technologies.

Things to consider when buying an extrusion and blow molding machine:

Production capacity - The machine should be able to meet your needs depending on whether you want to manufacture in small or large scale. Also consider a machine with a productivity capacity of 25% more than what you need.
Size - There is a wide array of sizes to choose from ranging from small to large. The size of the machine also determines the size of your molds as well as the size of the end products.
Automation - If you are looking for a machine that can create bottles in a wide range of sizes and designs, you should consider an automated machine. It is an efficient option that will save time and money spent on paying for extra labor. Moreover, an automated machine does not need supervision so you can focus on other important tasks while the machine does its job.

Contact our vendors for a free quote or expert advice on extrusion and blow molding machines. Delivery available Australia wide.

What is blow molding, and how does it work?

Blow molding is a manufacturing process used to create hollow plastic parts, such as bottles, containers, and automotive parts. The process involves melting plastic resin and then blowing it into a mold to create the desired shape. There are three main types of blow molding: extrusion blow molding, injection blow molding, and stretch blow molding. Each type uses different methods to create the final product.

In extrusion blow molding, a plastic tube is extruded and then clamped into a mold. The mold is then cooled and the plastic solidifies to form the final product. In injection blow molding, a plastic preform is injection molded and then blown into a mold to form the final product. Stretch blow molding combines the extrusion and injection blow molding techniques, stretching the plastic preform before blowing it into the final shape.

Blow molding machines are used to automate the process and can range in size from small tabletop machines to large industrial machines capable of producing thousands of products per hour. The machines typically include a heating unit to melt the plastic, a mold clamping unit to hold the mold in place, and a blowing unit to inflate the plastic into the desired shape. The process can be used with a variety of plastics, including polyethylene, polypropylene, and PET.

What types of blow molding machines are available in Australia?

There are several types of blow molding machines available in Australia, including:

Extrusion blow molding machines: These machines use a continuous extruded tube of molten plastic that is inflated to form a hollow product.
Injection blow molding machines: These machines use a preform, which is a tube of plastic that is injection molded into a desired shape and then blown into the final product.
Stretch blow molding machines: These machines use a preform that is stretched and blown into the final product, resulting in a stronger and thinner product.
Accumulation blow molding machines: These machines use a parison, which is a tube of plastic that is accumulated in a mold to form the final product.
Rotary blow molding machines: These machines use a rotating mold to produce multiple products in a single cycle.

Overall, the choice of blow molding machine depends on the specific needs of the manufacturer and the type of product being produced.

What materials can be used in blow molding?

Blow molding is a manufacturing process used to produce hollow plastic products. In this process, a molten plastic material is blown into a mold cavity to form the desired shape. The following are some of the materials commonly used in blow molding:

High-density polyethylene (HDPE): HDPE is a thermoplastic polymer that is widely used in blow molding. It is known for its high strength-to-density ratio, which makes it a popular choice for producing containers and bottles.
Polyethylene terephthalate (PET): PET is a type of polyester that is commonly used in blow molding. It is known for its high transparency, strength, and resistance to impact and chemicals.
Polypropylene (PP): PP is a thermoplastic polymer that is widely used in blow molding. It is known for its high resistance to chemicals, heat, and impact, which makes it a popular choice for producing automotive parts, toys, and containers.
Polycarbonate (PC): PC is a thermoplastic polymer that is known for its high impact resistance and transparency. It is commonly used in blow molding to produce bottles, jars, and other containers.
Polyvinyl chloride (PVC): PVC is a thermoplastic polymer that is commonly used in blow molding to produce bottles, pipes, and other products. PVC is known for its high durability and resistance to chemicals.

Acrylonitrile butadiene styrene (ABS): ABS is a thermoplastic polymer that is commonly used in blow molding to produce automotive parts, toys, and containers. ABS is known for its high impact resistance and toughness.

How much does a blow molding machine cost in Australia?

Costs in Australia vary depending on the brand, model, and specifications of the machine. Generally, a basic blow molding machine can cost around $80,000 to $100,000 AUD, while a more advanced and larger machine can cost upwards of $500,000 AUD. It is recommended to do thorough research and compare prices from different suppliers before making a purchase. Additionally, maintenance and operating costs should also be considered when budgeting for a blow molding machine.

What are the key considerations when choosing a blow molding machine?

Choosing the right blow molding machine is crucial for any manufacturer. Here are some key considerations to keep in mind:

Production requirements: The first consideration is the production requirements of your business. You need to determine the volume of production, the type and size of the products you want to manufacture, and the speed of production required.
Machine size: The size of the machine should match the size of the products you want to manufacture. Choose a machine that can handle the size and weight of your products.
Machine type: There are different types of blow molding machines, such as extrusion blow molding, injection blow molding, and stretch blow molding. Each type has its own advantages and disadvantages, so choose the one that best suits your needs.
Material compatibility: Ensure that the machine can work with the material you intend to use. Different materials have different properties, and not all machines are compatible with all materials.
Energy efficiency: Choose a machine that is energy-efficient to reduce energy costs and minimize environmental impact.
Maintenance and support: Look for a machine that is easy to maintain and has good after-sales support. This will ensure that your machine runs smoothly and lasts longer.

Cost: Finally, consider the cost of the machine and the return on investment. Choose a machine that offers the best value for your money and fits within your budget.

How long does it take to set up and install a blow molding machine?

The time it takes to set up and install a blow molding machine depends on various factors such as the type and size of the machine, the complexity of the installation process, and the availability of skilled technicians. Generally, it can take anywhere from a few days to several weeks to set up and install a blow molding machine. This process involves several steps, including preparing the site, assembling the machine, connecting utilities, and testing the machine. Proper installation and setup are crucial to ensure the machine operates efficiently and safely.

What types of products can be produced with a blow molding machine?

A blow molding machine is a manufacturing machine that can produce a variety of plastic products by blowing air into a heated plastic tube, creating a hollow shape. Some common products that can be produced with a blow molding machine include plastic bottles, containers, jars, toys, automotive parts, and household items. The machine can produce products of different sizes, shapes, and colors, depending on the specific mold used. Blow molding is a popular and cost-effective method for producing large quantities of plastic products.

How can I ensure the quality of the final product?

Use high-quality materials: The quality of the final product depends heavily on the materials used. Make sure to use high-quality raw materials that meet your specifications and standards.

Maintain the machine: Regular maintenance and upkeep of the blow molding machine are crucial to ensure the quality of the final product. Make sure to follow the manufacturer's recommendations for maintenance and cleaning.
Monitor the production process: Keep an eye on the production process to catch any defects or issues early on. Use quality control tools like statistical process control and visual inspection to ensure that each product meets your standards.
Train your staff: Proper training of your staff can help ensure that they are using the machine correctly and following the production process accurately. Make sure your employees understand your quality standards and have the necessary skills to produce high-quality products.

Conduct testing: Conduct testing of the final product to ensure that it meets your specifications and standards. Use testing tools like leak testing, burst testing, and pressure testing to ensure the quality of the final product.

What kind of after-sales support is available for blow molding machines in Australia?

After-sales support for blow molding machines in Australia typically includes technical assistance, spare parts availability, and repair services. Many manufacturers and distributors offer phone and online support to troubleshoot issues and provide guidance on proper maintenance and operation of the machines. They also maintain a stock of spare parts to ensure timely replacement and repair of any faulty components. Some companies may also offer on-site repair services, either through their own technicians or through authorized service providers. Additionally, training and education programs may be available to help operators optimize their use of the machines and maximize their productivity.

How long is the warranty period for a blow molding machine, and what does it cover?

The warranty period for a blow molding machine varies depending on the manufacturer and model. Generally, most blow molding machines come with a warranty period of one year or more. Some manufacturers may offer an extended warranty period of up to three years for an additional fee.

The warranty typically covers defects in materials and workmanship, and it may also cover repairs or replacements of parts that fail due to normal wear and tear.

It is important to review the warranty terms and conditions carefully before purchasing a blow molding machine to understand what is covered and what is not. Additionally, it is recommended to choose a reputable manufacturer with a strong track record of providing excellent customer support and reliable products.

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Blow Molding Machine Costs and Supplier Insights

The listed price of a Blow Molding Machine for sale ranges from $5,000 to $50,000, averaging $27,500.

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