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Forming
Considerations in the selection of IS Machines Today’s Individual Section (IS) machines have up to 12 sections and can reach a production speed of 700 bottles per minute. What machine is required for an individual glass factory, each with its own separate requirements? Saeed Keshavarz* discusses the parameters required to select the right (IS) machine for you.
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G
lass is known and appreciated as the best packaging material due to its advantages over other packaging materials. The demand for glass as a packaging material constantly increasing in many regions of the world. The machine suppliers for container glass equipment are dealing with new demands and enquiries despite the fact many new projects and investments were postponed due to the Covid-19 pandemic. Such a trend is expected to continue in future. The customers’ requirements do not stop growing and the NNPB (narrow neck press and blow) process is a good response to the demands for lighter articles and better prices. This is good to mention that year 2022 has been proclaimed the UN International Year of Glass by United Nations. In this article, we briefly review the parameters needed in selecting IS
machines (Individual Section machines). Today’s IS machines have up to 12 sections and can reach a production speed of 700 bottles per minute. At this rate of production, the glass factory can offer its customers large quantities of glass containers at an affordable price. So, let us discuss how to select the right IS Machine.
Capacity/Output This is basic information to accordingly choose the IS machine size and specifications as well the number of sections of machine will be determined. Based on the weight and dimension of the article, the number of gobs (single, double, triple, quadra); the machine type; and centre distance (such as 3”, 4 ¼”, 5 1/2”) and the forming process (Blow and Blow, Press and Blow; NNPB) will be defined. The number sections of IS Machines vary from one section small machines
with capacity of less than 5 tpd to 12 sections or Tandem machines (for instance 8+8) with capacity of more than 150 tpd.
Article Type The machine specifications depend on the type of the article intended to produce, such as bottle (Narrow Mouth) or jar (Wide Mouth), Height, Body and Finish Diameter. Based on this information type of the machine will be chosen. The type is based on center distance between two moulds on each section.
Quantity of production of each job Also the usual quantity of each article is a major parameter which is connected to defining capacity of the machine and defines size and specifications of IS machines. For instance, for a certain capacity of
58 0 Glass International March 2022
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