The topics of energy efficiency and environmental sustainability play a key role in the investment choices of companies that have increasingly been opting for compact and efficient systems and machines, capable of ensuring an environmentally sustainable and high-quality production.
Yesterday as today, SMI has been the reference point for many food and beverage manufacturers that want to invest in cutting-edge, eco-friendly bottling and packaging solutions, inspired by Industry 4.0 and Internet of Things (IoT) principles.
Packaging has been playing a key role in the marketing strategies of all companies of the industry and has increasingly been the focus of attention of a series of European directives that promote the use of renewable materials. The pack plays an equally important role, as it ensures product protection and safety, avoiding damages and contamination during transport and storage.
For this reason, food & beverage companies pay great attention to the packaging solutions to be used in their plants and increasingly invest in environmentally sustainable and energy-efficient production technologies, like those presented by SMI during Drinktec trade fair that will be held in Munich (Germany) from September 12 to 16, 2022.
New EBS KL stretch-blow moulder: compact, fast and efficient
The latest example of such innovations is represented by the new compact EBS KL ERGON rotary stretch-blow moulder, presented in world preview at Drinktec at booth 403 – Hall A6.
The project has begun after the success of several technical innovations introduced on the stretch-blow moulders from the EBS K ERGON range, that has met for several years the needs of a growing number of middle-sized companies within the primary packaging sector.
The need to meet the requirements of higher production speeds led SMI designers to develop the new series of ultra-compact rotary machines called EBS KL ERGON (where the letters KL stand for “Kompakt Large”), suitable for meeting production requirements up to 25,000 bottles/hour.
The new series is composed of models up to 10 cavities for the stretch-blow moulding of PET / rPET / PP / PLA containers up to 3 liters, available in stand-alone as well as in ECOBLOC® version, integrated with electronic filler and capper and three models for the stretch-blow moulding of high-capacity containers up to 10 litres.
EBS KL: compact and high-performance stretch-blow moulders
The new compact blow moulder by SMI is a cutting-edge technical solution that stands out in the reference market for a wide range of advantages: the preform heating section (heating tunnel) is integrated with the stretch-blow moulding section (carousel) into a single, very compact module that makes the system suitable for the installation even in small bottling lines.
The main features of the new range are:
• production speed up to 2,500 bottles/hour per mould (0.5 L format);
• the structure that embeds the heating tunnel and the carousel is equipped with slightly rounded safety doors, which increase the space inside the machine in order to perform cleaning and maintenance operations easily and safely;
• the stretch-blow moulding carousel is equipped with motorized stretch rods, whose functioning, controlled by electronic drives, does not require pneumatic cams; this is an innovative solution that ensures a precise management of the stretch rod path and an accurate control of its position, as a well as a considerable energy saving (compressed air is not required and the consumption of electricity is lower compared to the solutions with linear motors)
• thanks to the cam-free technology it is possible to modify the stretch speed without mechanical interventions (replacement of cams), as the servo-motor automatically adjusts according to the production speed (up to 2.4 m/s). This solution reduces the machine vibrations and the adjustments to be performed in case of format changeover;
• mechanical, electrical and pneumatic connections are located in a single area inside the machine frame, where the connections of the utilities are tidily and optimally positioned;
• thanks to its compact structure, EBS KL blow moulder can be easily transported in a container, thus saving on transport costs;
• the compactness also simplifies the installation and set-up operations, that are performed in about two days of work, ensuring a great quality-price ratio;
• the stretch-blow moulding system uses high-performance valves with low dead volumes (-50%), that reduce the pre-blowing and blowing times, with advantages in terms of machine performance and quality of the bottles produced;
• the mechanical unit of the mould is equipped with its own motorization, that performs with the utmost precision the up/down-motion of the mould bottom and the opening and closing operations of the mould holder unit; innovative solution with advantages in terms of greater precision, lower maintenance, fewer vibration, greater silence and long life of the plant;
• new motion system of the grippers, based on preform/bottle grippers without springs equipped with desmodromic cams; this new technical solution optimizes the spaces and reduces the diameter in which the grippers move with subsequent lower wear and higher precision in the management of the blow moulder;
• use of plastic bearings that reduce the wear and the vibrations to which the grippers are subject and do not require lubrication;
• the adjustment of the blowing pressure according to the bottle format is automatic with undoubted advantages compared to the solutions with manual adjustment on the linear blowers;
• air recovery single-stage system installed as a standard device;
• plant managed by Motornet System® automation and control system that ensures the constant maintenance of optimal working parameters during the whole production cycle and the direct modification of the machine parameters, easy format changeover operations and possibility to temporarily disable one or more moulds in case of need;
• simple and intuitive Posyc® operator interface, that uses advanced software for the management and diagnostic of the production efficiency, energy saving and predictive maintenance
• the machine is equipped with an energy consumption counter that allows to detect the electric consumption of the heating tunnel only or of the whole blower, to compare the specific consumption of different recipes, etc.
Innovative preform heating tunnel
EBS KL ERGON stretch-blow moulding system is equipped with an innovative preform heating tunnel with an extremely compact design, that is integrated with the stretch-blow moulding carousel into the same machine module and stands out for several advantages:
• the compact design ensures high speeds despite the reduced space;
• the preform feeding system is equipped with adjustments by means of position numeric counters, that speed up the format changeover operations;
• staggered position of the spindles which allows to adopt optimized chain pitches according to the preform diameter and to shorten the heating tunnel length, thus reducing the number of preforms inside the heating tunnel, as well as the waste and the consumption;
• the preform gripping spindle unit is equipped with a new system of diffusers, without spheres and with gasket, for the heat dissipation, which allows to significantly reduce the component wear;
• the infrared lamp units for heating the preforms in transit are equipped with thermo-reflective panels made of highly energy efficient ceramic material, placed on the lamp front and rear. This solution ensures a high reflection of the heat generated by a more uniform distribution of the heat over the entire surface of the preform;
• new ventilation system of the heating tunnel equipped with high-capacity centrifugal fans, that take fresh air from the bottom and channel it to preform body and neck. This system reduces the temperature of the preform neck with advantages in terms of thickness optimization and elimination of the ovalization and deformation of the preform neck and ring.
EBS KL range: the advantages at a glance
• reduced size
• easy and fast format changeover
• lower maintenance
• considerable energy saving
• saving on transport costs (a container is enough)
• fast and economic installation and start up
• better blowing quality
• easy and intuitive management
• predictive maintenance
• greater precision in the operations
