Blow moulding machinery is used to manufacture hollow plastic products by shaping heated plastic inside a mould with compressed air. This process is widely used for producing bottles, flasks, drums, jerrycans, tanks and technical plastic containers for different industries.
In plastic production, blow moulding is especially relevant for companies that need reliable, repeatable and cost-efficient manufacturing of hollow parts. Depending on the machine configuration, the process can be adapted to different materials, container sizes and production volumes.
Many of the machines in this category are based on the extrusion blow moulding process. In this system, plastic is melted in an extruder, formed into a hollow tube known as a parison and then blown inside a mould until it takes the final shape of the product.
Typical configurations may include a single-screw extruder, blow head, mould carriage, hydraulic system, speed drive, co-extruder or one or more blowing stations. These elements are important when choosing a machine, because they influence production capacity, container volume, wall thickness and compatibility with different moulds.
For bottle production, Gester also offers used PET blow moulding machines and related equipment. PET blowers are commonly used for manufacturing plastic bottles from preforms, especially in packaging, beverage, cosmetic and technical container applications.
Some machines, such as PET blower models from the Minerva series, are designed for automatic production cycles from preform loading to bottle unloading. The Minerva series uses a horizontal design for easier access and maintenance, and includes systems for preform temperature control and compressed-air management. :contentReference[oaicite:2]{index=2}
A second-hand blow moulding machine can be used across multiple industrial sectors. The right equipment depends on the product format, the plastic material, the required volume, the mould type and the expected production output.
Before choosing a used blow moulding machine, it is important to compare the technical specifications of each unit. The most relevant factors include the screw diameter, L/D ratio, motor power, type of blow head, number of blowing stations, mould size, hydraulic carriage, production capacity, compatible materials and general condition of the machine.
For example, some machines listed by Gester include 80 mm or 90 mm single-screw extruders, 20 L/D or 25 L/D ratios, single or double blowing stations and single, double or triple heads. These details help determine whether the machine is suitable for bottles, containers or larger hollow plastic parts. :contentReference[oaicite:3]{index=3}
Blow moulding can be used with different thermoplastic materials depending on the application and the machine configuration. Common materials include PET, HDPE, PP, PE and PVC. The choice of material affects the strength, flexibility, transparency, weight and chemical resistance of the final product.
For bottle and packaging applications, PET is widely used, while HDPE and PP are often selected for drums, containers, jerrycans and more resistant industrial packaging. Material compatibility should always be checked before purchasing a second-hand machine.
In addition to blow moulding machines, this category may include auxiliary equipment for plastic bottle production lines, such as bottle leak testers and bottle cutting machines. These machines support quality control, finishing and production efficiency after the moulding process.
For example, Gester lists equipment such as the VE-10 SC bottle leak tester and the Cuadrado CL-120 bottle cutting machine, both related to bottle production and post-moulding operations. :contentReference[oaicite:4]{index=4}
Buying used blow moulding machinery is a practical option for companies that want to expand production capacity, replace existing equipment or start a new plastic packaging line with a lower initial investment than new machinery.
At Gester, you can find second-hand machinery for plastic extrusion and blow moulding, including machines from recognised brands such as Tecnoplas, Moretti, Plamasa, Maquiplast, Siepla and Cuadrado. Each available machine includes key technical information to help you evaluate its suitability for your production needs.
If you are looking for a used extrusion blow moulding machine, a PET blower, a bottle production machine or auxiliary equipment for a plastic packaging line, contact Gester for more information about the available units.
Our team can help you review the technical specifications, compare available models and identify the most suitable machine for your production process.
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Blow moulding machines are used to manufacture hollow plastic products such as bottles, containers, drums, tanks and technical packaging components.
Extrusion blow moulding involves melting plastic, forming a hollow tube and inflating it inside a mould to create the desired final shape.
Common materials include PET, HDPE, PP, PE and PVC, depending on the machine configuration and the final product requirements.
Used blow moulding machinery offers lower investment costs while still providing reliable production capacity for industrial applications.
These machines are commonly used to produce bottles, jerrycans, industrial containers, cosmetic packaging and technical hollow plastic parts.
Key factors include production capacity, material compatibility, mould dimensions, screw diameter and the type of products being manufactured.
PET blow moulding typically uses preforms to create bottles, while extrusion blow moulding forms products directly from molten plastic.
Yes, many machines can be integrated with auxiliary equipment such as leak testers, bottle cutters, conveyors and automated handling systems.
Gester offers inspected and ready-to-use blow moulding equipment, helping manufacturers expand production while optimizing investment costs.
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