Hyundai Engineering said on the 20th that the "exterior wall painting robot" technology, jointly developed with J2ENC, a painting specialist, was designated as Construction New Technology No. 1042 by the Ministry of Land, Infrastructure and Transport. Construction New Technology is granted to construction technologies that were developed for the first time in Korea or introduced and improved from foreign technologies and are comprehensively recognized for novelty, advancement, and on-site applicability.
The exterior wall painting robot designated this time applies an unmanned, remote-control method, replacing conventional gondola-based exterior wall painting as its key feature. Operators can control the equipment remotely from the ground or rooftop, reducing the risk of safety accidents associated with work at height.
The exterior wall painting robot was completed through continuous research and development and on-site demonstrations since 2020. The equipment is equipped with an attitude control function and an overspray prevention system, and is designed to immediately correct when displacement beyond a certain angle occurs through a horizontal automatic control sensor.
It also applies a structure with two sub-fans to maintain equipment stability despite external environmental changes such as wind, and the dedicated support has undergone structural safety verification. In addition, multiple safety devices, including high-durability wires and an altitude sensor-based automatic stop function, minimize the risk of falling and detachment.
Technology to reduce environmental impact was also significantly strengthened. An overspray prevention case, a dust-collection filter, and dual dust-collection fans are applied as standard to effectively capture overspray generated during the painting process, and a triple-filter structure minimizes external leakage. In particular, a dedicated, low-overspray, non-thinned paint was developed together, achieving more than a 90% reduction in overspray compared with conventional water-based paint.
It can also apply continuous vertical spraying and multi-nozzle discharge to cover large areas without interruption, and on-site demonstrations achieved a construction speed about twice as fast as conventional manual work. Hyundai Engineering plans to expand its application to various facade types and high-rise buildings and to begin full-scale unmanned and automated construction throughout the exterior wall painting process.
A Hyundai Engineering official said, "The designation as Construction New Technology is an achievement that raised the bar for on-site safety by replacing high-risk exterior wall painting with robots," adding, "We will continue to develop smart construction technologies that enhance safety, quality, and productivity at the same time."