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Technical parts for the automotive sector: Control unit support for trucks.

The control unit of a truck is a vital component that forms part of the electronic engine control system. 

The control unit is responsible for monitoring and controlling various aspects of engine operation and other related systems. 

It uses sensors to monitor variables such as engine temperature, fuel pressure, throttle position, among others, and then adjusts key parameters, such as fuel injection timing and ignition, in order to optimise engine performance and reduce emissions. 

In short, the control unit plays a crucial role in the efficient and safe operation of the truck's engine.


At OSF, we manufacture the switchboard bracket. This set of parts must have certain specific characteristics to ensure optimum performance.

Firstly, it must be strong and durable to withstand vibrations and varying road conditions. 

In addition, the bracket must be able to protect the control unit from moisture, dust and other environmental elements that could affect its operation. 

Therefore, it is important to look for quality materials that meet the technical requirements of the automotive industry.

Technical materials: Polypropylene with glass fibres

Polypropylene with glass fibre is a material that combines the properties of polypropylene, such as lightness and chemical resistance, with the reinforcing and stiffening properties provided by glass fibre. This results in a material with several benefits, such as:

  • High impact resistance. 
  • Good fatigue resistance.
  • Dimensional stability.
  • Resistance to moisture and chemicals.
  • Excellent strength to weight ratio.

These characteristics make glass-fibre reinforced polypropylene suitable for a wide range of applications, from the manufacture of automotive parts, industrial containers, and components for the electrical and electronics industry.

Injection moulding of reinforced polypropylene

Injection moulding of polypropylene with glass fibre is an important process that requires certain considerations to ensure optimal results. These include:

  • Proper selection of the proportion of glass fibre in the polypropylene: This proportion will affect the mechanical properties of the final product, so it must be carefully evaluated to meet strength and stiffness requirements. 
  • Mould design: This is crucial to ensure uniform fibre distribution and to avoid possible defects in the injected part. 
  • Injection pressure: This must be controlled to ensure that the material is distributed homogeneously in the mould.

These considerations are fundamental to obtain injected polypropylene parts with fibre with the desired properties.

At OSF we have extensive experience in the injection of a wide variety of reinforced polypropylene, knowing very well the peculiarities of the processing in order to obtain optimal parts for their use and compliance with the requirements demanded.

In addition, this experience at OSF Plastic has allowed us to optimize the injection process, reducing handling and labour, as well as guaranteeing process stability that ensures consistency and avoids deviations in the final product. 

Contact us to find out more about these and other parts we manufacture for the automotive sector.