This weight represents the lightest practical weight in this class of container and highlights the continual efforts by ASB to reduce the impact of plastics on the environment as well as providing its customers with the most cost-effective molding solutions. Part of that increase comes from increased cavitation, but dry cycle time has also been significantly reduced in the blow station, while further developments in preform cooling have seen reductions of up to 30% in injection cycles over previous models.Īt CBB2018 the machine was demonstrated moulding a 500ml, 8-gram water bottle at 14 500bph. Increases productivity by around 50-80%Ĭompared to the previous PF24 model, the new PF36/36-600 has a footprint that is just 30cm longer but increases productivity by around 50~80% from around 9,000bph up to 14,000~17,000bph depending on the container specification. There are also systems currently under development at ASB that will use the same moulding principle for PET bottles up to 20-litres capacity. PF36/12-5000 – 12 preforms and 4 blow cavities up to 5 000ml.PF36/18-2000 – 18 preforms and 6 blow cavities up to 2 000ml.PF36/24-1500 – 24 preforms and 8 blow cavities up to 1 500ml.Other models built on the same platform include Blow moulding is carried out by an integrated 12 cavity linear blow system that operates three times per injection moulding cycle. The model shown at ChinaBrew was the PF36/36-600 denoting that it moulds 36 preforms per cycle and is capable of moulding bottles up to 600ml capacity. To achieve the same output by two-step moulding at least 2-3 times the factory floor area would be required, product handling costs are increased, and the container visual and neck quality would be significantly lowered.Īdditionally, by blowing the bottle within the same machine that moulds the preform, risk of contamination is eliminated and the hygiene of the bottle is assured, making the machine ideally suited to an in-line filling operation for beverage products. The result is an extremely compact bottle moulding machine that operates at high efficiency and produces the highest quality of finished bottle because, as in the one-step system, preforms are never released, eliminating risk of scuffing or neck deformation. Preform temperature is then raised and optimised in a continuous flow heating oven before being passed to the blowing station for re-heat stretch blow moulding.
#ASB PET PREFORM MOULD SUPPLIERS SERIES#
In this latest iteration of the successful family of PF Series of machines, preforms are injection moulded in batches of up to 36 then partially cooled to provide a stable starting point for the rest of the process. Preforms are injection moulded in batches of up to 36 Since it normally takes around three times longer to injection mould a preform than to blow a bottle, this means that each part of the machine operates at maximum utilisation and investment costs for blow moulds are reduced. In this process, preforms are injected in a greater number of cavities, partially cooled to maximise stability then temperature conditioned before being passed to a blow mould containing 1/3 the number of cavities of the preform mould. Depending on the container type and local market conditions, each process has its own merits.Īs the world’s leading one-step machine manufacturer, ASB recognised the merits of each system and, in 1995, combined them into a pioneering moulding system that became known as 1.5-step moulding. In the 2-step process, raw material is first injection moulded into preforms which are then stored or transported at room temperature before being re-heated and blown into the finished container by a separate stretch blow moulding machine. In the 1-step process, containers are moulded directly from PET resin in a single injection stretch blow moulding machine where the residual heat from injection is used to allow blowing of the bottle. Traditionally, PET bottles are made either by the 1-step or 2-step moulding processes. The new model line-up extends the range and capabilities of the platform providing higher productivity and even greater efficiency. BUILDING on the success of the PF24-8B 1.5 Step injection stretch blow moulding machine first launched at K2013 in Düsseldorf, Nissei ASB recently debuted the first of its new PF36 Series at China Brew & Beverage 2018 in Shanghai.
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