Taking the Turn with Tubes for EV

The move from Internal Combustion Engine (ICE) vehicles towards ones driven by alternative energy sources is in full swing. Nations have targeted a complete phase out in 2050 with an end for all new cars in 2035 (i.e. the Declaration of Glasgow). Several countries have undertaken more aggressive measures to accelerate the transition, notably Norway and Singapore. Hybrid, battery and fuel cell Electric Vehicle (EV) production is gearing up in factories around the world. The arrival of the new technology is sending waves of change along the entire supply chain.

Managing the temperature

Hoses & tubes for thermal management systems are essential with EV technology. The sizeable array of batteries generate much heat, which must be evacuated to ensure optimum and safe operating conditions, as well as meeting expected lifetimes. Similarly other EV components, namely electric motors, need to be kept cool.

There exists a network of different hose & tube types employed throughout the cooling circuit. Each type plays its role in keeping EV components at their ideal temperatures for optimum vehicle performance.


Specific EV demands

Unique requirements are placed on each EV construction type when compared to ICE vehicles. They qualify parameters such as low noise propagation (i.e. vibration), stiffness & flexibility, impact resistance, aging performance, light weight, cost effectiveness, and recyclability. Because the technology is rather young with car manufacturers moving forward on their own designs, we see a range of hoses & tubes being produced. However, trends are appearing.


Trend towards multi-layer TPV

Multi-layer production is increasingly notable. Indeed, reinforced TPV tube is generating interest, since it offers an attractive alternative to rubber. Our PAL 032-2 Tandem line supports the growing market trend and customer demand. As an established product in our portfolio, the extrusion line is gaining popularity with customers looking for a readymade solution to produce TPV tube. The entire configuration unites two extrusion groups in tandem with knitting / spiraling capacity for the inner reinforcement, and all fully integrated with downstream equipment.

At Maillefer we are seeing a growing number of demands from manufacturers who need to augment or introduce new EV pipe, hose, or tube production capacity. As a whole new family of hoses & tubes are moving towards a greener future, so are the solutions we provide to leading tier manufacturers around the globe.


Pascal Scaramuzzino, PhD
Product Manager, Automotive and Elastomer Systems


Topics: Pipe & tube manufacturing, automotive, battery, multilayer, hybrid, EV, tandem, TPV, Vehicle, knitting

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