Product category:
Blow moulding
News Release from: Beko Technologies | Subject: Blow moulded part cooling
Edited by the Manufacturingtalk Editorial
Team on 10 July 2002
Effective cooling improves blow moulding
times
Cooling a blow-moulded part from the inside and outside has a significant impact on cycle times and product quality can be better than before.
Beko reports that its recent seminar on advances in blow moulding technology, held at the University of Warwick, was a success, with favourable comments from the leading manufacturers, suppliers and users of blow-moulding in attendance Organised by Beko Technologies together with the Warwick Manufacturing Group, the seminar gave delegates an opportunity to learn about the latest developments in Beko's Bekoblizz deep cold compressed air cooling system
This article was originally published on Manufacturingtalk on 4 May 2001 at 8.00am (UK)
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Plastics mould cooling times reduced
Beko Technologies's Bekoblizz system uses precisely controlled dry compressed air to reduce plastics mould cooling times, increasing the production rate by up to 30%.
Cooling for blow moulding to be demonstrated
On September 19 and 20, Beko Technologies Ltd will be hosting a Bekoblizz Workshop for the plastics industry at Polymer Training in Telford, Shropshire.
Speakers included Jens Gruenewald (Dip-Eng) from the Institute of Plastics Processing (IKV) in Aachen, Germany as well as technical staff from Beko Technologies.
Bekoblizz works by delivering very cold (-35deg/-45deg), dry compressed air to the inside of the blow moulded part.
Compressed air can be entrained at standard system temperatures and passed through a pre-cooling process before being filtered.
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Plastic components cycle time cut by up to 30%
Using cold dry compressed air to enhance the cooling process, the deep cooling effect of the Bekoblizz system reduces the cycle times in the production of plastic components by up to 30%
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After drying and further filtering, the air goes through a second deep-cooling stage, which produces a flow of dry, clean air at the low temperatures required.
In his presentation summarising the main features of Bekoblizz, UK product manager Richard Spires commented: "As well as having a significant impact on cycle times customers have found moulded part quality in many cases to be better than before.
The system cools the moulded part from both the inside and outside and removes the heat more quickly and evenly, balancing the rinsing airflow with internal air pressure." To allow the delegates to see Bekoblizz in operation and to compare its performance with conventional cooling technology, a demonstration/ test was set up using the Warwick Manufacturing Group's Bekum 303 moulding machine.
Hamilton Machinery provided the technical support and Faraday Plastics sponsored the venue.
Faraday represents a partnership between Warwick Manufacturing Group and Rapra technology, part of a Government drive to develop and encourage new technology in the UK plastics industry.
The item chosen was a Ricoh photocopier toner bottle, weighing 93g.
The first production run without Bekoblizz took 25 seconds including 20 seconds cooling time.
The product release temperature straight from the machine over a number of samples averaged 80degC.
Using the Bekoblizz the cooling time was cut from 20 seconds to 15 seconds, a reduction in the total cycle time of 20%, or a production increase of 25%.
Despite less cooling time the sample temperature was lower at around 70degC, which indicated that the cooling time could easily be reduced further.
Test results showed cycle time reductions of up to 40%, with a typical breakeven period of seven months. Request a free brochure from Beko Technologies ...
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