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PET Blow Machines

SMF Blow Molding Machine

SMF blow molding machines include almost 30 types of machines. We offer machines for the production of PET bottles for water, beverages, or milk, and we don’t stop there. We also offer solutions dedicated to producers of alcohol, oils, or various chemical products. The HS and Combi series are classic, compact, and easy-to-operate blow molding machines equipped with FESTO pneumatic actuators which are responsible for the operation of the individual components.

Optima, on the other hand, is a very modern, servo-motor-driven model used for the production of small and medium-sized high-quality bottles. SMF’s offer also includes blow molding machines with a capacity of up to 6,500 pieces per hour for the production of larger 5-liter PET bottles and blow molding machines for large 20-30 liter PET containers. If you’re in the market for a stretch blow molding machine, nobody does it better than SMF.

Shape PET bottles to your needs, design bottle shapes to meet buyers’ needs & market requirements, and create easy-to-transport, easy-to-shelf, and iconic designs: These and much more are possible with SMF’s PET blow molding machines.

Design and Manufacture the Perfect Bottle

From the designing stage to mass production, here at SMF, we are ready to help businesses get their custom PET bottles to the market:

  • Our designers will help you create PET blow designs while taking into account safety, viability, and cost.
  • Our engineers will build the molds for you – molds that can help you mass-produce PET bottles with the shapes and designs your company needs.
  • We then tweak and configure our stretch blow molding machine to work flawlessly with the molds. It is finally time for mass production.
  • We continue supporting your company: Whenever you need to create a new design or update an existing one, we are ready to fulfill your orders ASAP.

If you have an idea, we’ll help you make it true. We will provide you with the bespoke stretch blow molding machine solutions you need to bring your PET bottle design to life.

SMF’s Established PET Blow Moulding Machine Process

Works on a new concept for PET bottles & new blowing mold is divided into a few stages.

Designing the PET Bottle Blowing Mold

  • Discuss the process with the client and create a working concept of what they want the final design to look like.
  • Take into account a multitude of variables like its shape, weight, cost, and suppliers that will impact the viability and performance of the design.
  • Bottle shape design: making drawings of the bottle to visualize its design and dimensions.
  • Consulting the client: The drawings will help you decide whether you like the design or not, and then, you merely need to communicate your thoughts to use. We will revise the designs based on your comments until you’re left with a design you’re perfectly satisfied with.
  • Next, we design a 3D CGI model of the PET blow mould with the possibility of 3D printing the design if the project demands it. The manufacturing process starts only after a green light.

Manufacturing the PET Blow Mold

  • The manufacturing process starts by preparing 3D assembly drawings of the complete blowing molds including all the parts needed to install them on the PET blow molding machines. Then we order all the materials (including special types of aluminum) according to the required dimensions.
  • Our engineers will then write a program for CNC machines that will allow them to accurately reflect the shape and dimensions of bottles in accordance with the approved designs.
  • Then comes the CNC production and hand polishing of all components. After that’s done, we then assemble the molds.

Testing and Quality Assurance

  • Tests of the blowing molds on the PET blow molding machines to ensure everything works as intended.
  • Verifying dimensions of the physical bottle samples with the dimensions given on the drawing accepted by the client including verifying the filling level.
  • Handing over the molds for the PET blow molding machines to the client

And that’s how SMF, a stretching bottling machine manufacturer, handles the process.

FAQ

What bottle capacities can be produced using SMF blow molding machines?

SMF blow molding machines allow for the production of a wide range of PET packaging capacities. The range includes machines designed to mold small bottles from 0.2 liters, standard sizes from 0.5 L to 2.0 L, and large containers of 3.0 L and 5.0 L, as well as specialized kegs and gallons with capacities of 10 L, 20 L, and 30 L. SMF also designs molds for non-standard capacities, such as 0.3 or 1.4 L.

The Optima series blow molding machines are modern linear machines in which traditional kinematics based on pneumatic actuators have been replaced by precise electric servo drives. This ensures smoother and faster mechanical movements, complete control over the mold closing and preform stretching process, and eliminates the delays typical of compressed air-powered machines.  

SMF linear blow molding machines are highly scalable. In smaller installations, the nominal capacity is approximately 3,000 bottles per hour (bph), while fully electrified and automated multi-cavity systems can operate at capacities ranging from 16,000 to 24,000 bph. Complete bottling solutions can, in turn, achieve variable throughput tailored to production needs, ranging from 1,000 to 34,000 bph.

The machines are equipped with advanced modules that effectively reduce the total cost of ownership (TCO). In electric machines (e.g., the Optima series), motors draw power only during movement, while servo drives drastically reduce the need for expensive compressed air. Cost optimization is also facilitated by heating ovens with high-efficiency IR lamps and integrated compressed air recovery systems (Air Recovery Systems), which allow for reuse of compressed air for pneumatic drive or pre-blow molding.

Yes, all modern SMF blow molding machines are fully compatible with preforms made from 100% recycled rPET. Precise stretching systems and advanced heating ovens compensate for the natural differences in heat absorption of these materials, ensuring the highest transparency and mechanical strength of the final packaging.

The Optima series machines are ideally suited for cleanroom production environments. The elimination of pneumatic drives means there is no risk of exhaust system deposits, compressed air contamination, or oil mist leaks. For this reason, these machines are widely used in the dairy, pharmaceutical, cosmetics, and food industries.

Thanks to the use of innovative technologies, the conversion process is highly automated and takes only a fraction of the time required in older generations of machines. Motion and speed parameters can be digitally adjusted by instantly loading the appropriate recipe for the new format on the HMI control panel. Furthermore, the physical replacement of molds (so-called quick changeover) has been simplified to the utmost, drastically reducing potential downtime.

Absolutely. The machines are equally effective in producing asymmetric and non-standard-shaped bottles, used in industries such as the chemical and cosmetics industries. Additionally, the offering includes solutions for specialized blow molding of hot-fill bottles, machines for handling wide-necked preforms (used for the production of PET jars), and equipment for the production of large-sized containers (over 5L).

Servo-driven technology significantly reduces the number of moving parts in the machine subject to wear, such as seals in valves and pneumatic actuators. This translates into an increased mean time between failures (MTBF) and reduced noise. An additional advantage is the advanced control system, which facilitates real-time diagnostics of potential errors and seamless monitoring of the machine’s overall condition.