Prefabricated House Production Process

The prefabricated house production process mainly includes four steps: modular production, precision machining and assembly, identification and information management, and on-site assembly.

Modular Production: This is the fundamental step in the manufacture of prefabricated houses. The building is broken down into multiple independent modules, which are then manufactured in a factory. Components such as ceilings, walls, and waterproof layers for bathrooms are all prefabricated on the factory's assembly line. Some scattered parts are first produced separately on different floors of the factory and then sent to the final assembly station, where high-automation methods such as welding robots are used to complete the final assembly. This production method enhances production efficiency, ensures consistent product quality, and reduces the workload and construction time at the construction site.

Precision Machining and Assembly: Precision machining of materials is crucial during the production process. For example, pine wood is precisely sawed along the dividing lines. After the equipment detects gravity, it drags the sawed boards to the parking area. Then, laser printers are used to print and attach labels of the same model to the board surfaces. Robotic arms then extract the required boards according to pre-set trajectories. After the boards are properly stacked, roller robotic arms push them inward, and nail guns quickly assemble them into walls, ensuring machining precision. For load-bearing beams, solid wood is inserted into equipment to create square frames that serve as the main walls of the house, ensuring structural stability.

Identification and Information Management: Each prefabricated 'building block' has a detailed 'ID card' containing information such as the project name, product model, and production date. This information is vital for managing and tracking prefabricated components, facilitating accurate identification and allocation during production, transportation, and installation processes. It helps avoid confusion and errors, improving the overall organizational and management efficiency of the project.

On-site Assembly: After the prefabricated modules are transported to the construction site, they are assembled like building blocks. For example, at a real estate construction site in Shanghai, tower cranes are responsible for transporting and installing the prefabricated 'building blocks' in the appropriate positions. In the construction of prefabricated houses in rural areas of South Korea, using prefabricated components for assembly, the main structure can be completed in 14 days, including steps such as installing foundation piles, assembling crossbeams, lifting stairs, laying floor slabs, and grouting the gaps between components. On-site assembly significantly shortens the construction period and reduces noise and dust pollution at the construction site.