Choosing the Right Pet Blow Moulding Machine for your Business

PET bottles have evolved to be most commonly used for the purpose of packing and transporting worldwide. The demand for PET bottles has increased drastically in the past few years.

There is a wide range of liquids that can be packed and transported in a PET bottle, such as water, soft drinks, cosmetics, and even household chemicals at times. The best traits of PET bottles are that they offer transparency, clarity, durability, and are also lightweight to carry around with ease.

This is your ultimate guide to choosing the best PET Blow moulding machine that matches the exact needs of the market you serve. Among the wide range of options, such as a semi automatic PET blowing machine, a 2 cavity PET blowing machine, a full automatic PET blowing machine, or a 3 cavity PET blowing machine, this guide will help you choose the right option.

Understanding the Different Types of Pet Blowing Machines:

For the purpose of succeeding in the PET bottle manufacturing industry, there is a need to be aware of the PET blow moulding machine that is required to meet your demands. The wrong choice will cost excessive energy, along with the risk of incurring frequent breakdowns and failures to satisfy the demands of the market.

One of the options to consider is whether to opt for a semi automatic PET blowing machine or fully automatic PET blowing machine.

Semi Automatic PET Blowing Machine:

This type of PET blowing machine will require manual involvement in the parts of the process. For instance, there are chances that the plastic PET molds might require manual loading or removal of the bottles.

Semi automatic PET blowing machine are often chosen for being less expensive and are also regarded as easier to maintain. It is best suited for small-scale industries that are just starting to work in plastic bottle manufacturing machine.

Fully Automatic PET Blowing Machine:

Contrary to the semi automatic PET blowing machine, a fully-automatic machine reduces the manual intervention of humans. It is often accompanied by features like a pre-form feeding system that will reduce human intervention. It consists of automatic mold changeover, robot-aided bottle insertion, and other elements, including a built-in control system.

It is slightly on the higher cost side of the range, yet for a high-volume production system, the cost incurred is justified by the efficiency of the machine. It is a valuable investment if the need remains in the market.

Cavity Type: A Matter of Focus

The number of cavities in the blow moulding machine refers to the total number of cavities that are present in the base of the bottle. It refers to the number of cavities that are formed in the bottle at each cycle.

A 2 cavity PET blowing machine makes two bottles in every cycle, while a 3 cavity PET blowing machine makes three bottles in every cycle.

2 Cavity bottles:

These are the most common choices for mid-range production of bottles. It maintains a proper balance between cost incurred, cycle time, and the energy that is consumed. It is also easier to maintain.

Most of the rising plastic manufacturers prefer to invest in 2 cavity bottles or in a 2 cavity PET blow moulding machine as it has a higher Return on Investment (ROI) without being an over-stretch to the capital expenditure.

3 Cavity bottles:

A 3-cavity PET blowing machine is mainly used for larger consumers or when there is a rising demand in the market for PET bottles. There are chances that multiple cavities can raise the output proportionally.

On the other hand, it is to be noted that more cavities mean there is more complexity and the machinery is also heavier. It might as well have a higher consumption of energy.

Shape, Size, and Flexibility Of Mold

The shape, along with its size and the flexibility of the mold for making the bottle, will have to be planned before manufacturing the PET bottles. Focus must be paid to:

• Will small bottles or large bottles be made?
• Will there be a need to switch the different sizes of bottles frequently?
• What are the other shape options to consider?

Machines that have a flexible mold are regarded as valuable. A plastic bottle manufacturing machine that permits quick and easy mild changeover will allow you to diversify the product range of your company.

Energy, Efficiency, and Operational Cost

Operating costs often dwarf and limit the initial price of the purchase. Vital contributors to the cost, such as heating, air compressors, cooling, maintenance, labor, and mold changeover, must be regarded.

Modern PET blow moulding machines have higher energy efficiency as they incorporate a heating system along with improved air recovery and optimal airflow. It is to be further noted that machines that are efficient in performing heating also minimize the waste of energy.

Quality, Materials, and Safety

Safety of the materials is a non-negotiable category to consider, and it is further vital in terms of higher output settings. Certain features to focus on are:

• Mold plates and the holders of the cavity must be robust. It should contain a robust clamping force and accuracy.
• Emergency shutting off is essential.
• Stable correction and insulation system, and heating zones to be established.
• Strong and sturdy frame materials must be used, and cooling water channels must be fixed.

Automatic Control and Ergonomics

Modern and latest machines are often vital to limit the options for increasing reliability and minimizing waste. It makes the daily process of operation easier and efficient.

Certain features to check are:

• PLC (Programmable Logic Controller) with stronger hold. Options for store setting in different bottle sizes, molds, or a faster changing mechanism.
• Human-machine Interface, like touchscreen display, temperature screening, and cycle time, must be provided.
• Automatic performance feed and autoloader to be installed for fully automatic machines.
• Sensors for checking the temperature of the mold, heating, and blow pressure on air leaks are to be checked.

Choosing the right PET blow moulding machine is not only about choosing the right machine, but also about focusing on getting the highest output. HZM machinery offers PET bottle machines to be configured in 6, 8, 9, or 12 cavity designs.

Always be conscious of choosing a reputable manufacturer who provides strong technical expertise and support in spare parts and services. This will help the PET bottles manufacturing machines to be reliable.

Contact us at Dunamis to get further information and assistance in choosing the right PET blow moulding machine for your business.