Used pet bottle blow molding machine

Types of used pet bottle blow molding machines

A used pet bottle blow molding machine can be classified based on its operational components and control system into three categories: fully automatic, semi-automatic, and manual. The following table clearly outlines the differences between them.

• Automation: The machine's operational components are automatically controlled. That is, the preform feeding, heating, stretching/blowing, cooling, and ejection are automatically done by the blow molding machine. The workflow is continuous and uninterrupted, with no human intervention needed to move the preforms from one stage to another.
• Control System: This type of blow molding machine has an automatic computer system that controls the temperature, time, pressure, and other parameters. Those settings are automatically executed so that the final products have accurate dimensions and uniform quality.

• Automation: Compared with fully automatic pet bottle blow molding machines, the semi-automatic ones have some of their operational aspects done manually. Tasks like preform feeding and ejection have to be done by an operator or worker instead of the automatic system. However, other tasks performed by the machine are uninterrupted and automated.
• Control System: Unlike fully automatic machines, semi-automatic blow molding machines have manual control. An operator needs to set the temperature and other parameters manually, so those settings are executed manually.

• Automation: The movements of the preforms in a manual blow molding machine must be done manually. Workers have to feed the preforms into the machine and take the finished products out.
• Control System: A manual blow molding machine has a simple control system. It is a straightforward interface where an operator can adjust some basic parameters, such as temperature and pressure.

Specification and maintenance of used pet bottle blow molding machines

Specification

Used PET bottle blow molding machines have various specifications depending on models and standards. Here are some specification details of the blow molding machines:

• Machine weight

  The weight of the blow molding machine ranges between 7000kg and 9000 kg. This creates a balance between the machine's stability and its ability to perform efficiently.

• Blowing force

  The blowing force varies depending on the machine production sizes and capacities. Generally, it ranges between 50KN to 250KN. The force enables the machine to apply high pressure and shape the PET materials into bottle preforms.

• Installed power

  The used blow molding machine's installed power is between 30Kw to 100Kw. It is sufficient for driving the machine's hydraulic and electric system for PET preform stretching and bottle blowing.

• Production capacity

  The capacity of the blow molding machine is between 300bph and 1200bph. The capacity engages several factors such as the machine model, bottle volume and size, and operational efficiency.

• Heating system

  The machine is integrated with either an infrared or electric heating system that ensures uniform heating of preforms before blowing. Depending on the model type, the quantity of heaters or elements used can be more or less.

• Control system

  Used blow molding machines are equipped with different control systems. They range from electromagnetic controllers to computer numerical control (CNC). These features provide operational automation and precise bottle molding control parameters.

Maintenance

For optimal performance, it is essential to keep the used PET bottle blow molding machine properly. Irrespective of the material's age, proper maintenance is crucial for achieving high-quality PET bottles with minimal waste.

• Regular inspection

  Routine inspection of the blow molding machine is essential to identify any potential issues before they could develop into major problems. Users should check all parts of the machine, such as the hydraulic system, alignment, air pressure, electrical components, and the heating and cooling systems. They should also look for wear, damage, and leaks, and ensure all fasteners are tight. If anything unusual is detected, they should be addressed immediately to avoid further damages to the blow molding machine.

• Clean and lubricate

  Users should clean blow molding machines regularly to prevent the buildup of debris and contaminants. After cleaning, they should dry the machines thoroughly to avoid moisture retention that may lead to corrosion. Additionally, they should lubricate the used blow molding machine according to the manufacturer's recommendations. Lubricating the machine reduces friction and prevents wear, thus prolonging its lifespan.

• Operating practices

  Users should observe the recommended operating practices for blow molding machines. They should avoid abrupt operation or overloading the machine, as this may exert excessive stress on its parts. Also, further familiarize themselves with the machine's manuals and specifications to understand better its limitations and capacity.

Scenarios

The applications and uses of blow molding used PET bottles are very wide and diverse. They are many industrial sectors, markets, and businesses that commonly use this molded bottle to contain, package, or hold their products.

• Food and Beverage Industry

  All sorts of transparent PET bottles that are used in the food and beverage industry are mainly blow-molded. This includes containers for sauces, liquids, dressings, and beverages (water, soft drinks, etc.)

• Pharmaceutical and Healthcare Industry

  Blow-molded PET bottles are widely used in the pharmaceutical and healthcare industries.

  Equipped with secure closures, obstructive child safety features, and tamper-evident designs, blow-molded bottles ensure a tight and secure fit. This helps consumers, patients, and caregivers to be confident in the integrity of the bottle and its content.

  This is important for maintaining drug efficacy, safety, and user trust.

• Cosmetics & Personal Care Industry

  Blow-molded PET bottles are extensively used in cosmetics and personal care products. For example, items like shampoo bottles, conditioner bottles, body wash bottles, lotion bottles, spray bottles, and perfume containers, etc., are all made from blow-molded PET.

  Blow-molded PET bottles in this area are transparent or semi-transparent. Many of them have artistic designs.Some of them also have the function of blocking UV rays. This helps to show the grade, beauty, and quality of the product. At the same time, the effective protection of the content from sunlight also ensures the efficacy and stability of the product.

• Industrial and Chemical Packaging

  Blow-molded PET bottles are also widely used in industrial and chemical fields. Specific characteristics, such as resistance to impact, chemicals, and high temperatures, are very suitable for demanding use environments.

  Heavy-duty PET bottles are impact-resistant, leak-proof, and shatter-proof. This helps protect the contents and prevent spills, even in rugged industrial settings.

• Mechanical and Equipment Parts

  The automotive sector uses blow-molded PET bottles considerably. These bottles are often used to hold automotive fluids and chemicals, such as motor oil containers, lubricant containers, cleaning agent bottles, fuel additive bottles, and so on.

  Specialized PET bottles are specially made to meet the particular demands of the automobile business. They are frequently constructed of heavy-duty, long-lasting PET that resists high pressures and temperatures.Some even come with enhanced barrier features that maintain product integrity and performance.

• Clothing & Textile Packaging

  Blow-molded PET bottles are extensively used in the apparel and textile industry for garment and accessory packaging.The transparent PET bottle serves as a container for clothes, shoes, and accessories, making it easy for consumers to see the product inside.

How to choose used PET bottle blow molding machines for business

Wholesale buyers searching for a used PET bottle blow molding machine should focus on the features that matter most. There are several specific factors to consider when buying a used blowing machine for PET bottles.

• Check bottle types and sizes

  Industrial buyers should start by understanding their production needs. They should consider the most common bottle types and sizes their business produces. Then, they should examine the used molding machines' specifications to find a compatible option. Select a machine that successfully produces the required bottle shapes and sizes.

• Blow molding technology

  Focus on the relevant blow molding technique for the business operation. Make sure the used PET molding machine employs the ideal blow molding technique for smooth operation. Select an available machine that performs efficiently and meets the production demands.

• Production capacity

  Select a machine that handles the production volume. Choose a machine that has the capacity to produce the required number of PET bottles per hour. Align the machine's production capacity with the business' growth potential.

• Control system

  Select a machine with an easy-to-use control system. Opt for a used molding machine that has an adjustable and programmable control system. This kind of control system allows operators to monitor and control various parameters during the blow molding process.

• Maintenance history

  Since the focus is on a used blow molding machine, the maintenance history is very important. Inquire about the maintenance history of the machine. Find out if regular maintenance has been performed. Also, find out if any major repairs have been done in the past. This information can give further insight into the machine's condition and reliability.

Used PET bottle blow molding machine Q&A

Q1: What is the difference between single-stage and two-stage bottle-blow PET molding machines?

A1: In single-stage machines, the injection, heating, stretching, blowing, and cooling processes all occur in one unit. Single-stage machines offer lower handling costs and less space but are suitable for low-production rates. In contrast, two-stage machines have separate units for preforming and blowing. The preforming unit operates in a warmer area and is staff-friendly, while the blowing unit can be automated. Although two-stage units occupy more space and have higher handling costs, they are suitable for high-production rates.

Q2: What are the environmental concerns related to PET bottle blow molding?

A2: The production of PET bottles contributes to plastic waste. Improving recycling systems, using bio-based PET, and developing bottle-less solutions can help reduce the environmental impact.

Q3: What is the trend in PET bottle blow molding?

A3: The trend is towards more energy-efficient production, better recycling of PET material, and the use of sustainable materials and technologies.