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Air Control Industries (ACI) has supplied the MS8/DC blower to Putterfish to keep its digital spherical displays inflated.

Spherical displays are achieved via special projection techniques involving custom-engineered lenses that project media onto the inside of an inflated sphere that can be suspended from ceilings, hung from walls or just floor standing.

This projection technology has been developed over last few years by Pufferfish and is now being used worldwide for music events, business conferences and exhibitions.

At the same time as the core projection technology was being proven, the key factor of keeping the spheres inflated correctly was also being refined with the help of ACI.

The company was approached by Pufferfish after consultations with specialists in inflatables regarding appropriate blower manufacturers.

Initially, an off-the-shelf centrifugal fan was specified.

This was said to be a simple solution that both inflated the sphere and cooled the projection equipment as the excess air was ducted away.

Today’s version of the Pufferfish digital spherical display is more sophisticated and larger in size, calling for a different blower solution.

The Pufferfish sphere is non-venting; air does not escape via the seams.

As a result, the blower must be able to maintain a consistent level of inflation in response to feedback from pressure sensors.

This calls for extreme opposites of performance, from the initial inflation of the sphere through to continuous ’tick-over’ to maintain pressure without overheating.

In between, there are the pressure changes resulting from variations in ambient conditions that call for different blower outputs.

Will Cavendish, chief technology officer for Pufferfish, said: ’The latest blower satisfies all our inflation requirements while also helping us to achieve system design improvements.’ The MS8/DC features a fan motor, which is a 24V external rotor unit that is controlled by varying the voltage.

This configuration is claimed to provide a simple, compact control solution that is quiet.

The compactness of the system facilitates transportation and installation; the latter is said to be essential for some applications, such as in television studios.

Air Control Industries

Air Control Industries (ACI) is a leading global provider of industrial air movement products.

We analyse the application and select or design the product with the right materials, performance and environmental characteristics to provide the most efficient and cost-effective solution.

ACI has the expertise to help satisfy all your air handling requirements, be it cooling drying or spreading.

Since 1969, ACI has been designing and manufacturing fans and blowers, both for general applications and for specific tasks that demand custom-engineered solutions. We have also been developing value-added products employing our fans and blowers.

These include Airknives, bottle/can-drying systems for the drinks industry and our extruded product/cable/wire drying unit. All are employed around the world by leading international companies.

Another ACI innovation for the health and hygiene market is our Jetblack personnel cleaning stations. Being blower powered, Jetblack provides a safe and economic method of de-dusting personnel. To extend options for our customers, we also offer EBM-Papst products, for which we are the exclusive distributor.

ACI has around 50 employees split between its UK headquarters in Chard, Somerset, and its US subsidiary in Maine, New England. There is a network of overseas distributors to provide international sales and support.

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