WEIBUILD News|2026.02.27|

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting

The Weijian High-Wall Spraying Robot (PNP-6000iC) is specifically designed for spraying in expansive spaces such as basements and the peripheries of core tubes. With its advantages of efficient operation, high coverage, and full-process automation, it has become the preferred choice for high-wall spraying in large spaces, driving the comprehensive upgrade of building construction towards digitalization and automation.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图1)

Wei Jian high wall painting robot

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图2)

Adaptive to ultra-large spaces, capable of handling complex working conditions with ease

The Weijian high-rise wall painting robot can spray up to 5.9 meters high on walls and 6.4 meters high on ceilings, covering high-altitude areas without the need for scaffolding, thus addressing safety hazards and efficiency bottlenecks in high-altitude operations. It supports large-scale operations covering over 1000 square meters, eliminating the need for setting up reference barriers. It is ready to use immediately and can navigate flexibly even in complex building structures, ensuring efficient painting.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图3)

One station with four spraying heads, significantly enhancing spraying efficiency

The original "one-station four-spray" design allows for the completion of four-column spraying operations at a single station, significantly reducing equipment shifting time and enhancing construction continuity and overall efficiency. The putty spraying rate is 300 square meters per hour, and the latex paint spraying rate is 400 square meters per hour. Under continuous long wall conditions, the putty spraying efficiency increases to 450 square meters per hour, and the latex paint spraying efficiency increases to 650 square meters per hour, far exceeding the levels of traditional manual labor and similar equipment.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图4)

With a coverage rate of 95%, the bay window in the entrance is fully covered

The spray coverage rate is over 95%, far exceeding industry standards. The paint film thickness is uniform and stable, with no color difference. The Weijian spray robot can automatically identify areas such as beams, bay windows, and entryways, intelligently plan the optimal construction path, improve spray quality, and save materials.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图5)

AI + offline simulation, full-process digital collaboration

Utilizing AI intelligent algorithms and offline simulation software, the robot achieves full-process digital collaboration, enabling real-time perception and analysis of the construction environment, detection of collision risks, and automatic planning of optimal construction paths. The offline simulation 3D visualization interface allows for a preview of the construction path, spraying effects, and material usage estimates. Upon completion of planning, a coverage heatmap is generated to visually display the spraying effects. This truly achieves simulation before construction, monitoring during construction, and traceability after construction.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图6)

The paint film is uniform in thickness, indicating a good spraying effect

The Weijian spray painting robot is equipped with an internal tilt compensation function that calibrates the distance between the nozzle and the wall in real time, ensuring uniform paint film thickness. The variable spraying range technology can automatically adjust the spraying range according to the width of the wall, saving 15% to 20% of materials compared to similar products while ensuring quality. The automatic calibration function of the main and secondary beams of the ceiling ensures precise spraying connection, eliminating missed and overlapping spraying, and strictly controlling construction quality.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图7)

Fully automated process, spraying immediately upon startup

Equipped with Weijian's original Tiangong system, it achieves integrated intelligent control of "hands, feet, and eyes". This makes the machinery truly become an intelligent robot suitable for construction. The equipment is equipped with Weijian's modeling robot, which can complete the entire process automation of modeling, program generation, and on-site operation without manual intervention, truly realizing intelligent construction.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图8)

AGV intelligent chassis, easily surmounting obstacles

The Weijian spray painting robot adopts an omnidirectional AGV mobile chassis equipped with four independently driven omnidirectional steering wheels. It can adapt to uneven ground, easily overcome obstacles, maintain a stable body throughout the process, and ensure continuous spraying, eliminating spraying interruptions or quality deviations caused by complex road conditions. Whether it's traversing corridors or transitioning between floors via elevators, it can navigate flexibly, significantly improving the efficiency of operation coordination between different areas.

Wei Jian high-wall spray painting robot, empowering intelligent upgrade of large space spray painting(图9)

Fully standardized delivery process, with free OTA upgrades

Wei Jian adheres to a customer-centric approach, constructing a standardized delivery system throughout the entire process to ensure the rapid implementation of robots. Through a training model combining theory and practice, we help customers master robot operation, maintenance, and construction process optimization, achieving a comprehensive upgrade from equipment use to construction organization. At the same time, Wei Jian provides technical support covering the entire lifecycle, relying on intelligent remote diagnosis and regular follow-up mechanisms to ensure stable equipment operation. The software continues to iterate to improve performance, and a dedicated technical team provides full support throughout the process, helping customers achieve a step-by-step increase in intelligent construction efficiency.


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