Hyundai Rotem Unveils Servo Press Line... "Supplies to Hyundai Motor Electric Vehicle Plant in Georgia, USA"

Hyundai Rotem announced on the 24th that it unveiled the actual model of an ultra-large vehicle press facility at its factory in Dangjin, Chungnam. The servo press is scheduled to be supplied to Hyundai Motor's electric vehicle-exclusive plant in Georgia, USA.

Hyundai Rotem held a demonstration of the next-generation 'servo press' at the Dangjin factory the day before. Representatives from 14 domestic and international client companies attended the demonstration. They observed the servo press line operation process and the transfer device (SHIFT), among other features.

A press is a machine that shapes metal through processes such as blanking, piercing, bending, and forming. Depending on the structure that generates compressive force, presses are classified into mechanical presses, hydraulic presses, and servo presses.

The servo press introduced this time is a 6,800-ton press line composed of five units. It consists of one 2,400-ton press, two 1,200-ton presses, and two 1,000-ton presses. Hyundai Rotem has previously supplied a 1,000-ton servo press, but this is the first time it has established an ultra-large production line.

The servo press is driven by servo motors equipped with a self-driving system. It controls the speed and position of the slide, which determines the shape of the steel plate. In particular, it operates at low speed during the forming section to enable precise processing. It reduces impact when the slide contacts the material. This enhances quality and production flexibility. Unlike mechanical presses, it can precisely control the applied force. It is useful for stamping steel plates with many curves used for automobile exterior bodies.

Servo press line ordered by Hyundai Rotem. [Photo by Hyundai Rotem]

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Hyundai Rotem newly applied servo-controlled driving presses to items that are difficult to form, such as aluminum. With three servo motors, it can apply curves according to production conditions. Optimizing forming curves through servo driving can improve quality. Additionally, it succeeded in domestic production of automation devices. It applied a self-developed inter-process transfer device to the servo press line. The process speed increased from 15 sheets per minute (SPM, Stroke Per Minute) to 18 sheets.

Hyundai Rotem set a goal to supply flawless equipment with pre-verified functions, speed, and workability. It began developing servo press technology in 2008. In 2009, it succeeded in developing proprietary technology. In 2012, it secured the first domestic servo press localization technology.

The servo press is scheduled to be supplied to Hyundai Motor's electric vehicle-exclusive plant in Georgia, USA. Hyundai Rotem expects this supply to accelerate the electrification transition of production lines. The company plans to actively target both domestic and overseas markets.

A Hyundai Rotem official said, "With the introduction of the ultra-large servo press, we can secure technological competitiveness in the vehicle production equipment market," adding, "We will continue research and development to target the global press market."

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