The mechanical operation, completely electrical, leaves more time for the stretch-blow molding process. The efficiency of the oven does not impose thermal conditioning limits on the performs. The electrical stretching gives precision and flexibility to the process and guarantees full repeatability. The result is The SFL achieves high production outputs and excellent container quality.

The fully electrical operation, the non-lubricated oven chain, the blow clamp equipped with self-lubricating graphite bearings and the electrical stretching are all elements which contribute towards keeping the inside of the machine clean. This results in limited maintenance requirements, energy savings and a high quality of the containers. A highly efficient system for the recovery of blowing air is available on all models.

All models of the SFL series can produce a wide range of containers, from 0.10 litres up to 12 litres. Changing from one size to another is quick and simple. The system for gripping the preforms enables the type of neck to be changed (from 28 mm up to 48 mm) with simple operations and without the use of tools and adjustments. The gripping system also minimises the number of personalised parts. The blowing mold changeover is quickly and easily. There is an accessible area at the front of the machine for changing the molds, with the extraction of the monoblock mould on a simple roller. The change of personalised parts, necessary in the event of a neck change, requires the replacement of all the quick fit elements, such as in-feed star wheel, chain spindle transfer grippers and seals. The aligner and the preform gravity chute are the only adjustments required.

A change of configuration of the SIPA SFL blow moulding machine from, for example, a 2 cavity configuration for the production of 12 litre containers to a 4 cavity configuration for 1 litre containers, is very simple and fast and may be performed by the machine operators in just few hours.

Adoption of a fully electrical operational system to guarantee the maximum energy savings.
Reduction of the air consumption for blow molding, adopting a state-of-the-art air recovery system.
Very efficient heating oven with significant energy savings.

The SFL linear blow moulding machines have been designed for extremely easy use and enable very simple mould and configuration changes. They are reliable systems with reduced maintenance time and costs.