Plastics moulding machine maker at Intl Engineering Expo

Arburg to exhibit its electric high-speed plastics moulding machine, the Allrounder 420 A, at the 2008 International Engineering Exhibition in Nitra.

Arburg will present a high-speed thin-walled plastics application at the 2008 International Engineering Exhibition in Nitra, Slovakia, from the 20th to 23rd of May 2008. On exhibition stand 34 in Hall M4, two cups will be produced on an electric Allrounder 420 A and subsequently removed and stacked in a cycle time of just 2.2 seconds.

German machine construction company, Arburg, located in Lossburg, is one of the leading global manufacturers of injection moulding machines for plastics processing with clamping forces between 125 kN and 5,000 kN.

Arburg has defined the efficient use of energy as one of its corporate objectives, and has incorporated the relevant measures in the all-embracing initiative “Energy Efficiency Allround”. Here, the objective is not simply to use as little energy as possible in the production of Allrounders and the entire Arburg technology. Rather, the company seeks to use its products and expertise in order to efficiently minimise energy consumption among its customers as well. So, it is fitting that Arburg’s exhibit at the 2008 International Engineering Exhibition in Nitra is an electric Allrounder 420 A plastics moulding machine, which has been awarded Arburg’s Energy Efficiency label.

“By presenting the high-speed Allrounder 420 A, we will be able to demonstrate the performance and potential of our electric Arburg machines to trade visitors in Nitra in a most impressive way,” declares Jaroslav Novak, manager of the Arburg subsidiary in the Czech Republic, who is responsible for the trade fair in Slovakia. He emphasises the importance of this trade fair: “The International Engineering Exhibition in Nitra has always been an important event. For the Czech Arburg subsidiary and the Slovakian office, it is without doubt one of the market highlights of 2008.”

The Allrounder 470 C Golden Edition with a clamping force of 1,500 kN and a size 400 injection unit is currently being showcased at Plastimagen being held at Centro Banamex in Mexico City from April 8 - 11, 2008.

The exhibit in Nitra
The high-speed Allrounder 420 A 1000-400 plastics moulding machine features a distance between tie bars of 420 millimetres, a clamping force of 1,000 kN and a size 400 injection unit. Equipped with a two-cavity mould, it produces polypropylene cups. The shot weight for both cups is 16.8 grams. In addition to a pneumatically-operated needle shut-off nozzle for sprue-free injection, the machine also features an electro-mechanical ejector for rapid demoulding. With this plastics equipment, the Allrounder A is ideally suited to high-precision but also rapid and reproducible production cycles with thin-walled parts. The high output levels also have the advantage of reducing unit costs, resulting in a short, economically advantageous payback period for the initial investment.

High economy of the Allrounder A
A principle feature of the electric Allrounder A machines is their cost efficiency. The main axes, with servo-electric drive as standard, enable simultaneous movements, thus facilitating short cycle times. The auxiliary axes can be driven electrically or hydraulically, depending on the customer's requirements. A further advantage of these electric machines is their low energy consumption which, depending on the application, can be up to 40 % lower than that of a comparable hydraulic machine. High reproducibility and part quality are guaranteed by the excellent positioning accuracy of the electric movement axes, which also contribute to the reduced noise emission level. In addition, the accuracy of the axis movements allows rapid and precise entry into the mould, thus optimising cycle times – a factor that plays a particularly important role in the case of complex production cells. Electric Allrounder A plastics moulding machines therefore offer decisive advantages for numerous applications.

New features for a wider range of applications
Further new elements of the Alldrive range are the more generous installation dimensions, which allow the use of larger and more complex moulds on the electric Allrounder A, and the automatically self-adapting clamping force control, which ensures higher part quality. The safety guard, open at the top and enlarged at the rear of the machine, provides more space not only for cooling and electrical connections to the mould, but also for more convenient mould changing. With the new, small size 70 injection unit, Alldrive machines are now ideally suited to the production of small and micro-components.

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