Custom resistors meet automotive needs
A
Cressall Resistors product story
Edited by the Engineeringtalk editorial team
Jul 22, 2003
Resistor manufacturer Cressall has reacted swiftly to a request for specialist control resistors from an automotive component company.
Resistor manufacturer Cressall has reacted swiftly to a request for specialist control resistors from an automotive component company.
Although normally associated with high-power units for heavy industrial use, Cressall was asked by ATP Industries Group to apply its experience to producing compact resistors for controlling in-car ventilation fans.
In just 12 weeks, the company developed a series of replacement components, sourced materials and tooling, and established a dedicated production and testing area.
Supplied through ATP to one of the world's largest motor manufacturers, the resistors are used as replacement parts on a number of recent vehicle models.
Output of the units, which peaked at 20,000 per month while an earlier backlog was cleared, is expected to level at around 3000 per month.
According to Steve Lucas, OE Sales Director at ATP, Cressall's ability to meet his company's quantity requirements was crucial.
"The numbers we need are not huge in motor industry terms", he explains.
"Most manufacturers are not flexible enough to produce the right product on a small to medium scale".
Several variations of the resistor are being supplied.
Most are around 6cm in length, and the design generally features a double-wound resistor element.
All units are subjected to individual testing before despatch.
As well as matching the components offered by the motor company's previous supplier, Cressall is working on improvements.
These include base materials which can be cut rather than moulded, allowing rapid production of small-volume "specials" without the expense of new tooling, and an encapsulated model designed to resist corrosion on vehicles where the product is exposed to water spray.
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