Mechanical press vs hydraulic press in cold forming

Metal cold forming is essential in the automotive industry, as it enables high-quality components to be produced at relatively low cost. The presses used in this process are of two main types: mechanical presses and hydraulic presses. Both machines have specific advantages and limitations, making them suitable for different applications in the field of metal cold forming for the automotive industry.

Mechanical press, the tradition

Mechanical presses have historically been the first to be used in the automotive industry for the cold forming of metals. These presses use a system of levers and gears to transform the driving force into a stamping force. Their working speed is higher than with hydraulic presses, which makes it possible to increase production in a shorter period of time. This makes them particularly suitable for high volume production and relatively simple parts.

Let’s see together the specific advantages of using mechanical presses:

high speed: mechanical presses can achieve high production rates, making them ideal for simple parts and high volumes
energy efficiency: they consume less energy than hydraulic presses, helping to reduce operating costs

Limitations of mechanical presses:
less flexibility: mechanical presses are less adaptable to complex shapes or more delicate forming operations
high impact loads: in the case of moulding of particularly large and heavy components, they can generate significant impact loads

Hydraulic press, the innovation

Hydraulic presses use the oil pressure principle to exert the stamping force. They are known for their ability to provide constant and controlled pressure, making them suitable for the production of complex and large parts, which require uniform pressure over the entire surface of the mold.

Let’s see together the specific advantages of using hydraulic presses:

versatility: they are suitable for moulding complex and large components
pressure control: they provide precise control over the pressure exerted, ensuring greater uniformity in part forming

Limitations of hydraulic presses:

lower speed: hydraulic presses work at a lower speed than mechanical presses, this may limit their efficiency for large production quantities
operating costs: they require more energy to operate than mechanical presses.

Automotive components made with cold forming

Despite having different characteristics, both types of presses can be used to produce the main metal components required by the automotive industry in order to ensure strength and precision.

These include the following:
gears used in automotive transmission systems
bearings used in wheels and motors
hinges for doors and safety latches
– frame components such as supports and brackets
– suspension components, such as stabilizer rods.

Both mechanical presses and hydraulic presses play a vital role in metal cold forming. The choice between the two types of presses is usually taken during the design and organization of the production activity and depends on the complexity of the component to be produced, the expected production volume and the energy efficiency objectives.

Over the course of our 120 years of operation, the combination of these different technologies has made it possible to manufacture a wide range of automotive metal components; We are proud to have made a real contribution to improving the safety and performance of modern cars.

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