Product category:
Injection moulding
News Release from: Engel Austria | Subject: E-Motion 80/60 injection moulder
Edited by the Manufacturingtalk Editorial
Team on 28 March 2002
All-electric injection moulder wins US
accolades
"Its part weight consistency, energy efficiency and cavity pressure repeatability were all superior.." - comment on a winning all-electric injection moulder in US 'Plastics Product Review'. USA.
"Simply put, the best machine we have tested It was far ahead of its nearest competitor and achieved a first place ranking in over half the categories
This article was originally published on Manufacturingtalk on 12 Jan 2001 at 8.00am (UK)
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Its part weight consistency, energy efficiency and cavity pressure repeatability were all superior.
This combination of factors should make it a no brainer for your machine of choice.
It is the Best Buy in this ever expanding category.
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This machine earned a composite ranking of 2.18 versus 4.03 for the nearest competitor." - This was the assessment given in the latest report on "Injection Molding Machines" published by Plastics Product Review (PPR), a consulting company for the plastics industry based in Traverse City, MI/USA.
The outstanding machine under review was one of Engel's new all-electric machines - to be more precise: an Engel E-Motion 80/60 with a clamping force of 60 short tonf (550kN).
Over a period of two years, PPR tested as many as 30 injection moulding machines of varying size.
Belonging to the size category from 50 to 110 tons (the other two categories being less than 40 tons and from 140 to 200 tons), the Engel E-Motion 80/60 was tested with a four-cavity mould for automotive components.
There were ten other competitors in this category: five all-electric machines, four hydraulic machines and one hybrid machine.
PPR bases its test criteria on actual user requirements.
The overall test is intended to examine the machine's ability to mould repeatable parts regardless of small changes in material viscosity.
Basic functions, such as cycle times, are not measured.
The testers take it for granted that all new injection moulding machines are equipped with modern control systems that are capable of precise, accurate control of basic parameters.
The variables which come under scrutiny in the PPR tests are: part weight, cavity pressure, fill time, energy consumption, linearity of injection velocity and the actual maximum injection speed compared with the quoted value.
A test cycle always comprises 50 shots and the material used is ABS.
In order to simulate viscosity fluctuations over time (e g when changing over from one batch to another), two different types of ABS were used during the test cycle, with viscosities differing by about 10 percent: 15 shots with ABS of the higher viscosity, 20 shots with ABS of the lower viscosity and then 15 shots again with the first ABS.
Both in the "single material test" and in the "viscosity change test", the Engel E-Motion proved its superiority as a high-precision machine.
Its part weight consistency - an absolute must when injection moulding precision parts - was an unchallenged winner, the 50-shot test cycle resulting in a part weight consistency of 1.7516 ñ0.0093 g (with fluctuating viscosity) and 1.7648 +/-0.0042g (with constant viscosity).
The composite ranking of 2.18 is an average calculated from the sum of the individual rankings.
Out of a total of eleven individual rankings, Engel E-Motion 80/60 came first in as many as six and was always up with the leaders in the other five.
The complete PPR report "Injection Molding Machines" with details of all tested machines and all results may be accessed in the Internet: www.torchlake.com/productreview/articlepages/moldingpage.htm.
(This was Manufacturingtalk's Top Story on 27 March 2002).
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