Under Pressure

EU legislation came in to action late last year making it mandatory for all new vehicles to be fitted with tyre pressure sensors, since then the market leading company have seen an increase in volume of production and have returned to PHASA for more machines to deal with the increased demand.

The Tyre Pressure Monitoring System was first developed in the early 90’s and now 54% of global vehicles carry the technology. The latest sensors are battery powered and monitor tyre pressure both when the vehicle is stationary and in motion. They are fitted to the tyre valve system with the electronics on the inside of the tyre and periodically measure the pressure and temperature of the tyres. The information is transmitted via radio frequency technology to an on board receiver which will alert the driver is any of the tyres drop below a pre-programmed threshold.


TPMS sensor processed on PHASA special purpose machine

Over the past 10 years PHASA have been supplying this global manufacture with machines and tools for production of the sensors in the USA, UK and Asia.  The equipment consists of special purpose stations to fit an in-line conveyor system and interchangeable tooling to fix a PCB into a GF filled plastic housing, assembling 8 parts from a pallet every 16 seconds or 1 part every 2 seconds. With tool change taking less than 5 minutes and auto tool recognition the production can be changed quickly from one product to another to cope with varying demands.


The PHASA special purpose station

The first machine supplied back in 2005 has now processed in excess of 20 million parts and is still going strong. The reliability and service received from PHASA has given the customer the confidence to purchase over 8 more of the Phasa stations for its global manufacturing sites.

The PHASA process works well for this application as it is able to process the assemblies without damage to the electronics encased within the sensors, resulting in a strong fixture without any risk of damaging the sensor.  The process uses a controlled jet of Hot Air to heat the plastic and then a cold Former with adjustable force setting to apply just the right amount of pressure to form and clamp the part without any inducing any stress onto the PCB.

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Phasa Limited
10 Victoria way
Studlands Ind Est
United Kingdom

Tel: +44 (0)1638 561 478
Fax: +44 01638 667 310

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