VICTREX® PEEK® chosen for digital motor components in
Dyson vacuum cleaners
When Dyson, one of the world’s leading vacuum cleaner manufacturers, wanted to
develop a faster, more efficient motor they chose VICTREX PEEK for a number of
components because of its superior toughness and fatigue strength. Called the Dyson
Digital Motor, it has a life expectancy approximately double that of a conventional vacuum
cleaner motor — an important factor since most vacuum cleaner motors wear out long
before the rest of the product.
Over the course of six years, a team of U.K. mechanical, electrical, aeronautical, materials,
and software engineers worked on developing the Dyson Digital Motor.
According to Simeon Jupp, Director of Research Design and Development at Dyson,
“The selection of VICTREX PEEK was vital to the success of the development of the new
motor. The polymer’s exceptional fatigue performance and toughness made it the natural
choice for us. Ease of processing was also vital for this application where complex thin
sections are required.”
The motor spins the fan that generates suction and airflow. It contains no contacting
components which means it can operate at 100,000 rpm, a huge increase over
conventional motors which operate between 30,000 rpm and 40,000 rpm. The faster motor
means that the fan can be smaller and more efficient — less than half the diameter of a
conventional vacuum cleaner fan.
To perform reliably at such high speeds, Dyson evaluated a wide range of materials for the
fan including cast aluminum. They chose VICTREX PEEK (450CA30) because it was the
only material that offered the right combination of toughness and fatigue strength. The
excellent dimensional stability and accuracy of molding tolerances meant that the complex
and accurate fan design could be readily injection molded using VICTREX PEEK.
The fan and rotor assembly is fixed on a shaft using spacers made with VICTREX
PEEK (450GL30BLK). In addition, in the motor assembly where high-speed bearings are
needed, Dyson uses specialized ball bearings with cages molded from VICTREX PEEK.
VICTREX® PEEK® Polymer is typically used as a replacement for machined metals in a
wide variety of high performance end-use applications. These range in diversity from
components for cars, aircraft, industrial pumps, valves and seals, to silicon wafer carriers,
connectors and sterilisable surgical instruments.
Victrex plc is headquartered in the UK and has a joint venture with Mitsui Chemicals,
Victrex-MC, Inc, in Japan. Victrex plc has offices in Hong Kong, Korea, Shanghai,
Singapore and Taiwan. The company had a turnover for 2003 of £71.5m (2002: £59.1m)
and exports approx 97% of its VICTREX® PEEK® polymer output to OEMs in the
automotive, electronics, industrial, medical and food market sectors in Europe, North
America and Asia Pacific. Sales to the electronics sector increased by 24.4% over 2002,
mainly due to growth in this sector from the Asia-Pacific region.
Information on products, technical support services and sales and distribution contacts
worldwide, can be accessed through the company’s web site: www.victrex.com
The VICTREX® and PEEK® Registered Trademarks
For many years, Victrex plc has been using its VICTREX and PEEK trademarks to refer to
its brand of Polyetheretherketone. Victrex plc is the sole manufacturer and supplier of
VICTREX PEEK brand polymer worldwide. PEEK is a registered trademark of Victrex plc
Victrex contact: Issued by:
Edmond Chu Claire Walker / Dr Gordon Wong
Tel: +852 2366 1357 Techworks Asia Ltd
e-mail: firstname.lastname@example.org Tel: (852) 2524 4956 / 2168 0872