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Electric/hybrid machines

Chinese show attracts the best The Chinaplas show to be held in April will have new as well as tried and tested machinery displays from a host of injection moulding machine makers from around the world. Faster machine speeds Nissei Plastic Industrial will showcase its all-electric machine, Nex110-6EH, specifically designed for thinwall moulding of casings and light guide plates. Features of the 110 tonne machine are the newly designed ultra highspeed injection mechanism that is equipped with a low inertia servomotor. This enables the injection speed to reach 1,000 mm/second and also 3.5 times faster injection acceleration than conventional machines, thus improving the injection pressure to 3,000 kgf/cm 2 . The clamping mechanism features the linear pressure toggle, which has been used in standard Nex machines, for further reinforced rigidity of the die plate. This enables a mould to sustain the original precision for an extended period and improves the mould protection function (low pressure clamping), says the Japanese company.

Nissei’s facility in China is expected to increase its targeted output by the end of this year

machines/year) and is targeting to produce 50 machines/ month (600 machines annually) by 2011. Compact, yet sturdy Italian Negri Bossi, a member company of the Sacmi Group, will show its new CANBIO VS. It features the patented plasticising unit with a fast changeover system, off-line low pressure oil filtration and the new Columbia control. A highlight, though, is the twin-cylinder injection unit that, despite the more generous platen, makes the new machine compact than the previous V series. Also on show at the fair will be a 130 tonne VS press demonstrating a singlecavity cup mould and a 250 tonne VS press producing a two-cavity beer glass mould. Another machinery supplier Engel will display its allelectric Emotion with a clamping force of 380 tonne and a 96-cavity tool for producing closures. It will also have its latest Duo 500 Pico on display. This, it says, is a compact variation of the tried-and-trusted Duo large scale machine series. The machine’s smaller footprint and low weight are made possible by the compact dual-platen clamping system, allowing for energy efficiency and a dry cycle time of 2.6 seconds. The Austrian company will also display its Viper robot, which it says is the first in the series.

Nissei recently started selling its new Nex110 model

Another model, the TH40E5VE, will be shown alongside the above new machine. The 40 tonne vertical injection moulding machine has been upgraded to feature a higher injection speed and response. It is targeted at the moulding of precision electronic components such as micro connectors and LED chips. In related news, Nissei has set up a sales and service office in Taicang, Jiangsu province, and has closed its Shanghai office. The company set up its first production facility outside Japan in Taicang last year and has transferred its staff as well as the technical centre for customer support, training school and parts warehouse from the Shanghai branch to Taicang. With the Taicang facility currently producing the 50 tonne all-electric Nex50-5E models, the company says it will expand it to other types and up to 180 tonnes clamping size. It also plans to increase its output from 15 to 25 machines/month by the end of this year (300

Hybrid caters to thinwall moulding German Arburg will display its hybrid Allrounder 570 H (Hidrive), launched last year. The 200 tonne model, with an 800 injection unit and a two-cavity mould, will produce thinwall snack trays weighing 36.5 g in a cycle time of 4.3 seconds. At its open house it held recently, Arburg revealed 3

I n j e c t i o n M o u l d i n g A s ia • A P R I L 2 0 1 0


Arburg’s 570 in the Hidrive series was launched last year and the company has recently introduced a larger 720 model

a larger Hidrive series, the 720H with a clamping force of 320 tonnes that was shown producing screw caps. The all-electric machine is fitted with an accumulator-boosted hydraulic injection unit to allow for benefits of an electric machine but at a price tag that is lower than an all-electric machine. The company’s Managing Director of Sales, Helmut Heinson, is optimistic of sales this year. “Despite the general economic crisis, machine sales in China increased significantly in 2009 and the year has been recorded as one of our most successful in this region. Based on the current status, the prospects for our Chinese business in 2010 can be assessed as extremely positive.” And he goes on to say that although the market for high-performance, energy-efficient machine technology and complex production cells is still small, enquiries are on the increase. “Today, demand for our high-tech machines stems not only from international global players, but increasingly from local companies,” he adds, describing developments in the Chinese plastics market. Medical products and closures Swiss manufacturer Netstal will demonstrate its all-electric Elion 1200-530 model, using a 64-cavity mould made by Schöttli of Switzerland, producing needle protection caps for disposable syringes in a 6.5 second cycle. The PP moulded parts will be removed from the mould by a handling unit from German manufacturer Hekuma. The production ce l l w i l l a l so i nclude equipment from Motan , temperature control by HB-Therm of Switzerland and chiller from ef cooling Ernst H. Furrer, also a Swiss company. This machine is suitable for cleanroom operations since it features encapsulated and water-cooled electric motors that are emission-free. Based on a recovery principle, braking energies are fed back to the power circuit for supply to other users within the equipment, saving up to 70% energy compared with conventional drive systems. The Elion is also equipped with a closed loop control for the moulding process. ◆

Hybrid Machines  

IMA features issue April 2010

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