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3L-20L big bottle blowers

Blow Moulding Machines for bottles with a capacity of 3 l and more

Plastic bottles with a capacity of 3 to 6 l are used as water containers in households. Large, 5-gallon bottles (about 20 l) are used in industry, are an important part of water dispensers, and pass the test as bulk packaging for beer or wine.

The large 3-5 l PET bottle is a popular container for edible oil, as well as for a variety of domestic detergents such as trigger spray bottles, dishwashing liquid, liquid soap, fabric conditioner or even bleach. Such models are also used as packaging for large volume chemical products e.g. car windscreen washer or AdBlue and others.

Production of bottles with capacity above 3 l

The production of PET bottles with a capacity above 3 l requires the use of a special type of blow moulding machine. Large bottles are made from heavier preforms, usually with a different neck-ring type than small classic beverage bottles – 38 mm, 45 mm, 55 mm. SMF Blow Moulding Machines are suitable for producing large PET bottles from 2-3 l up to 20 l or even 30 l.

Optima MAX Series

Optima MAX are special versions of the classic 8-slot SMF machine. MAX models have the benefits of the Optima Series – innovation, reliability and ease of use. These are state-of-the-art blow moulding machines that are all-electric – all relevant processes are controlled and controlled by Mitsubishi servo drives, and the finished bottles are unloaded vertically.

In the 6-cavity version (Optima 6MAX) it is possible to produce bottles up to 3 l in volume. Optima 4MAX, on the other hand, is a 4-cavity machine with a nominal working speed 6500 of 5 l bottles per hour.

The Stratos Series of automatic machines will be suitable for larger capacity bottles, Stratos 10 is a two-cavity machine that can produce bottles from 3 to 12 l.

Stratos 20 is a single-cavity machine suitable for producing 5 to 20 l containers. For customers looking for a machine with lower capacity, we can offer single- or double-cavity machines Optima 2, Optima1/2 or semi-automatic machines of Jumbo Series.

We look forward to working with you!

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.