Arburg at Chinaplas 2012 in Shanghai

(PresseBox) ( Lossburg, )
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- Focus on production efficiency
- New electric Edrive series
- IML and optical parts as application highlights

At the Chinaplas, to be held from 18 to 21 April 2012 in Shanghai, Arburg will present three exhibits to demonstrate the range and performance capability of its machine technology. Electric, hybrid and hydraulic Allrounders, all of them bearing the Arburg "e²" energy-efficiency label, will produce high-quality moulded parts, e.g. for the optical and packaging sectors, on exhibition stand E1G01 in Hall E1. The focus will be on the topic of production efficiency, which the exhibits achieve through fast cycles and energy-saving technology, for example. Appropriately, Arburg will also introduce Chinaplas visitors to the new Edrive series, which has extended the electric machine range.

"Our exhibits reflect the requirements profile of the Chinese high-tech segment precisely. Our customers value precision, quality, machine availability, productivity and energy-efficiency. All of these factors are combined under the topic of production efficiency, which is Arburg's focus for 2012," explains Toni Tong, Managing Director of the Arburg subsidiary in Shanghai. "The electric, hybrid and hydraulic Allrounders at the Chinaplas feature energy-optimised operation and also prove that our modular range, our expertise in applications technology and our experience allow us to offer the optimal injection moulding solution for every requirement." This means that Arburg is the right partner for implementing efficient production," adds his colleague Max Man, who is responsible for the Arburg subsidiaries in Shenzhen and Hong Kong.

Edrive: electric machines for a wide range of applications

The new Edrive series expands Arburg's machine series and covers a clamping force range from 600 to 2,000 kN. An Allrounder 470 E with a clamping force of 1,000 kN will be presented at the Chinaplas. The Edrive machines are primarily designed for the efficient production of standard items such as technical moulded parts, making them an energy-efficient electric alternative to basic hydraulic machines.

The Allrounder E machines offer advantages in terms of cycle times thanks to their rapid and simultaneous execution of the most important machine movements and their potential with regard to energy efficiency. The high efficiency of the servo-electric drives and the toggle-type clamping unit ensure extremely energy-efficient operation on all electric Arburg machines. Servo motor energy recovery during braking also has a beneficial effect on the machines' overall energy consumption. Together, these factors combine to reduce energy consumption by up to 50 percent compared to standard hydraulic machines. The new Allrounder E machines consequently bear the Arburg "e²" energy-efficiency label to indicate their optimum energy efficiency.

High-performance machine produces IML cups

Arburg will present an Allrounder 570 H with a clamping force of 2000 kN and a size 1300 clamping unit as a representative of the Hidrive hybrid high-performance series. The machine is equipped with a special packaging unit tailored to the requirements of the high-speed thin-walled application on show. An injection unit specially optimised for the high-performance segment is used in order to ensure short cycle times. The 55 mm screw with an L/D ratio of 22:1 ensures a sufficient degree of plasticising. In addition, there are specially optimised mounting platens for the clamping unit for the thin-walled sector, as well as the relevant interface for operating an IML system, which has been provided by Beck Automation in this exhibition application.

The exhibit operates with a four-cavity mould from Glaroform and produces polystyrene cups in a cycle time of three seconds. The moulded part weighs 10.1 grams and the material throughput is approximately 50 kg/h. The use of transparent polystyrene and a film printed on both sides means that the cups have a decorative surface both inside and out.

The high-performance hybrid machines of the Hidrive (H) series are predestined for high-speed packaging applications of this kind. The hybrid Allrounder H series covers a clamping force range of between 600 and 5,000 kN and combines maximum production output with short cycles and reduced energy consumption. Accordingly, they bear the Arburg "e²" energy-efficiency label.

Compression moulding of complex optical component

In addition to the electric and hybrid machines, the hydraulic S series will also be represented with the Allrounder 630 S at the Chinaplas. The Allrounder S machines cover a clamping force range from 125 to 5,000 kN, can be flexibly expanded from basic to high-tech machines, and are therefore suitable for all injection moulding tasks and processes. One particularly impressive application example will be presented in Shanghai: The exhibit features a clamping force of 2,500 kN and operates with a 2-cavity mould from Hejiu Technology. So-called light-guide panels for TFT screens with LED background illumination, which are extremely energy saving, will be produced. The production of these panels is extremely complex. In order to achieve a high luminous efficiency, the components must be as thin as possible and require a specific optical surface structure. This is only achievable with the injection moulding process using compression injection. At the Chinaplas, light-guide panels with a thickness of 0.5 mm with a flow/path wall thickness ratio of 350:1 will be produced in a cycle time of approx. 15 seconds. The highly-dynamic compression process takes place simultaneously with injection in a time of approx. 50 milliseconds. On the clamping side, the exhibit is characterised, for example, by mounting platens specially adapted to the end product, as well as a special hydraulic system. On the injection side, the Allrounder 630 S is equipped with hydraulic accumulator technology, a position regulated screw as well as an electromechanical dosage drive. It consequently bears the Arburg "e²" energy-efficiency label.
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