A good base is “the basis for a good chair”.
The pun reveals the topic I am talking about today: 5-star bases, essential to give the correct movement and the right stability to all office and non-office swivel chairs.
We will see the main features of this component for office chair and discover the key factors for choosing the best base for our purpose.
From the executive armchairs, through the VDT operative chairs, to the home office swivel chairs, each chair must (or should!) have an adequate base for use. Whether they are aluminum bases, steel bases or plastic bases, all bases must have 5-star basements to be stable.
The FIRST KEY FACTOR is the size: a suitable base for office chair must be large enough to prevent the user to overturn and at the same time not too bulky to collide with the obstacles around it.
It is also obvious that everyone will have to choose the appropriate seat for their size, that is, a bedroom swivel chair will not be suitable for big people, much better a nice comfortable armchair or a large and ergonomic task chair!
The chair stability is tested and certified according to the parameters established in the EN 1335 Standards and is influenced not only by the basement size, but also by the type of mechanism mounted: the more the chair tilts, the wider the base must be.
Like power without control, stability without strength is also nothing!
And here is the SECOND key factor: strength! A good 5-star basement must withstand the stresses it receives during all the tests required by the EN 1335 Standards. But that’s not enough! The literature on the subject and our experience tell us that to be on the safe side the base for swivel chair has to pass a very hard obstacle, the legendary Ansi-Bifma test, which represents the quality standard required in the American market.
And we know that some American people are, shall we say, abundant … so we understand that the tests are just as strong.
That’s better! So you are on the safe side! Our new Starfish bases, for example, resist more than 20% more than what is required by the ANSI-BIFMA standards: really very strong!
And what do we do with aesthetics? Here is the THIRD key factor: design. It’ obvious that a base for office chairs to be “so resistant” will have to be very large, massive. And some bases, most of the American ones, are. Our bet is: we make bases that are strong but “light” at the same time. Here we are not talking about lightness in terms of weight of course. To make a resistant base you cannot save on the amount of material, it is evident. Here we talk about lightness of forms, softness, proportion …
Finally the FOURTH key factor: the material used. Whether they are in PA filled with glass fiber (plastic in short, but very sturdy!), steel or aluminum, all of the 5-star bases must (or should, be careful!) comply with the mentioned quality tests. What is the difference then? Clearly it is the cost and the consequent aesthetic value that the different materials transmit.
So to each one is own base, as long as it is stable, strong and pleasant.
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