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New Danfoss VLT® Decentral Drive E cient, reliable and powerful

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COMMON SENSE<br />

ON RARE EARTHS<br />

COMMENT<br />

Totally<br />

transforming...<br />

The current rare-earth crisis has been looming for several years.<br />

Observers have long warned of the danger of China becoming the<br />

dominant supplier of these materials, which we rely on for products<br />

ranging from televisions <strong>and</strong> headphones, to batteries <strong>and</strong> glass –<br />

<strong>and</strong>, of course, for the high-power magnets used in many motors.<br />

Despite their name, rare earths are not uncommon. An estimated<br />

64% of the world’s reserves lie outside China, but the Chinese have<br />

cornered the market by undercutting other producers, <strong>and</strong> by<br />

showing little apparent concern for the environmental impacts of the<br />

dirty business of extracting <strong>and</strong> producing the materials. Until<br />

recently, that is.<br />

China is now cutting back on rare-earth production <strong>and</strong> exports, as<br />

well as hiking their prices, citing a new-found concern for the<br />

environment as one of its reasons. It is also diverting more of what it<br />

does produce to its own manufacturers, thus adding value to the<br />

minerals, while restricting supplies to foreign competitors.<br />

Another possible motivation for China’s restrictions is that at, at the<br />

previous rate of production, China’s rare-earth resources could start<br />

to run out within 15 years.<br />

Not surprisingly, China is now trying to buy into rare-earth production<br />

facilities in other parts of the world. For example, it has attempted to<br />

acquire controlling stakes in at least two Australian rare-earth<br />

producers. One of these bids was blocked by the Australian<br />

government on grounds of national security.<br />

Although Japanese manufacturers have been hit hardest by China’s<br />

rare-earth restrictions, the effects are being felt around the world. In<br />

Europe, for example, the trade body that represents around 3,000<br />

suppliers to the automotive sector, has called on the European<br />

Commission to ensure secure supplies of rare earths <strong>and</strong> to look at<br />

possible production within Europe. For its part, the EC says it is<br />

“monitoring the situation closely”.<br />

If rare earths become unavailable or too expensive, there could be<br />

far-reaching repercussions. For example, unless alternative motor<br />

technologies can be commercialised rapidly, we will need to turn to<br />

bigger, heavier motors which could affect the efficiencies <strong>and</strong><br />

economics of road vehicles – especially electric <strong>and</strong> hybrid vehicles.<br />

The current rare-earth problems could last until around 2015 when<br />

new sources of supply are due to come on stream in several<br />

countries around the world. But some of the materials – such as<br />

neodymium, which is used widely in high-power magnets – could<br />

remain in short supply.<br />

The rare-earth crisis emphasises how dependent we are on key raw<br />

materials <strong>and</strong> how vital it is to have alternative sources of supply. We<br />

need to act globally to ensure that no single country or company can<br />

dominate the supply of such crucial materials in future.<br />

...your old drives <strong>and</strong> motors to new<br />

The ABB swappage scheme replaces<br />

your old worn out drives <strong>and</strong> motors<br />

from any manufacturer for new,<br />

highly effi<strong>cient</strong> <strong>and</strong> compact<br />

equivalents from ABB. Not only will you get at least 17.5 % off the list<br />

price but with the help of the ABB <strong>Drive</strong>s Alliance, <strong>and</strong> for a small<br />

additional charge, your new drives <strong>and</strong> motors can be installed,<br />

started-up <strong>and</strong> the old equipment removed for recycling.<br />

To discover how easy it is to swap your old for new<br />

visit www.drives.co.uk <strong>and</strong> click on the “swappage<br />

scheme” banner. Or simply call us on 07000 DRIVES<br />

(that’s 07000 374837)<br />

Tony Sacks, Editor<br />

Sponsored by<br />

Power <strong>and</strong> productivity<br />

for a better world TM

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