How to Build a Prefabricated House Factory

The production process in a prefabricated house factory should be selected based on the type of house, taking concrete modules and wooden houses as examples. The core steps are as follows:

I. Production of Concrete House Modules

1. Module Splitting and Integrated Design
   The factory disassembles the building into independent modules (such as rooms, staircases, etc.), with structures, electromechanical systems, interior decorations, and exterior finishes completed simultaneously in the factory. For example, the three-dimensional factory of China State Construction Hailong Industrial Park achieves an annual delivery capacity of 20,000 to 30,000 modules through assembly-line production, with over 70% of the processes completed in the factory, significantly shortening on-site construction time.

2. High-Precision Manufacturing and Performance Optimization
   The factory employs millimeter-level precision control, using standardized molds and automated equipment to ensure accurate module dimensions. The modules feature waterproofing, sound insulation, and earthquake resistance, and can be disassembled, stacked, and flexibly expanded, with a recycling rate exceeding 90%. For example, after module assembly, no secondary waterproofing treatment is required, directly forming an integrated structure.

3. Environmental Protection and Resource Conservation
   Factory-based production reduces on-site construction pollution, with construction waste emissions reduced by over 75%, material losses reduced by 25%, on-site electricity consumption reduced by 60%, and water consumption reduced by 66%. Additionally, modular transportation reduces traffic pressure and site occupation.

II. Production of Wooden Houses

1. Material Preparation and High-Precision Cutting
   Taking pine wood as an example, the factory marks cutting lines on the wood using CNC equipment, cuts along the marks with zero-error precision, and automatically sorts and stacks the pieces using a gravity sensing system. Laser-printed labels simultaneously indicate dimensions for easy subsequent assembly.

2. Collaborative Assembly by Robotic Arms

   • Wall Production: Roller robotic arms lift the wooden boards, and nail guns complete single-sided fixation in 2 seconds, forming window frames; during wall assembly, nail guns precisely create gaps between the boards, eliminating the need for manual measurement checks.
   • Load-Bearing Structures: Workers insert solid wood into equipment to form square frames as main wall supports. Robotic arms pick up the vertical surfaces and transport them to the next platform for assembly with other components.

3. Full-Process Automation Control
   From cutting to assembly, CNC systems and robotic arms dominate the entire process, reducing manual intervention. For example, load-bearing beam frames are formed in one piece through equipment, ensuring structural stability while improving production efficiency.

Summary: Prefabricated house factories achieve industrialized building production through modular design, high-precision manufacturing, and automation technology. Concrete modules focus on integration and recycling, while wooden houses emphasize CNC cutting and robotic arm collaboration, both significantly improving efficiency, reducing costs, and minimizing environmental impact.