History
Since its inception over 40 years ago, Multi-Wing has become the world's leading brand of axial
fan impellers. It produces the most comprehensive range of axial fan impellers on the market,
suitable for the majority of applications. Yet, like so many of the world's greatest inventions,
the Multi-Wing impeller was conceived almost by accident.
Back in the 1960's, Finn Sigurd Andersen had bought a new Citroen DS19 car and was intrigued by
the innovative use of plastic to make the cooling fan on its engine.
It was his cousin Harald, however, who developed this concept and came up with idea of producing
impellers made up of separate components – with individual thermo plastic blades and aluminium
hubs.
These were revolutionary, not only were they lightweight, quiet and efficient, but also if a
blade failed it could be replaced easily and cost effectively.
The Multi-Wing impeller had arrived.
The company was taken over by the son, Ole Stig Andersen, who started to market the Multi-Wing
impellers, but in the early days it was not easy to get approval of impellers with plastic blades
in the industry. However, attitude from the market slowly changed.
Over the years O.S. Andersen focused on establishing Multi-Wing as an international product. Today,
the impellers are marketed worldwide through a comprehensive network of distributors, a policy that
has made Multi-Wing the world's leading impeller brand.
In the UK, Leicester-based, Multi-Wing UK has been the sole UK distributor of the Multi-Wing range
for over 20 years (formerly Fral Products Ltd.). With full in-house machining, assembly and
balancing facilities the company is able to tailor solutions locally to solve customers’ specific
problems.
Our mission statement…
“Multi-Wing UK exists to provide a first class product and service. We do this by giving attention
to our customers and investing in our people, equipment and machinery.
We believe that business is about people and that being fair, honest, courteous and professional to
everyone involved in our business is the key to success.”
A Competitive Edge
The Multi-Wing impeller range has always been perceived as a good quality product and is also very
competitively priced.
Multi-Wing recognise that a competitive pricing policy is essential to survival in today's tough
business climate with tight margins and a continuous squeeze on profits. The company is therefore
committed to bringing down the cost of the impellers without reducing their quality.
Quality, reliability and speed of service are also very important at Multi-Wing UK. We are accredited
to ISO9002 and are an Investors in People company.
Product Range/Applications
Multi-Wing produces the most extensive range of axial fan impellers on the market. The range is
continually developing; it encompasses a wide range of diameters from 200mm to 1980mm, with 7
different hub/blade styles and an option of clockwise or anticlockwise rotations.
With so many options available it is almost always possible to select the most efficient impeller to
suit individual requirements.
Every impeller is designed with interchangeable components. Some of the range has been designed with
an adjustable pitch setting that locks the blades into place increasing their adaptability further.
Testing
As part of the commitment to providing a quality product, Multi-Wing have their own in-house wind
tunnel facilities. Wind tunnel testing allows the company to produce a range of specific data for
each different impeller. These tests provide the basis for a PC programme with details of the data
including given air volume, pressure and sound conditions.
Multi-Wing axial fan impellers are designed to be extremely strong and to check their durability
Multi-Wing puts each new impeller design through extensive, pre-production tests. These tests
include start/stop, maximum speed and temperature limits.