Assembled Container House Purchase

When purchasing assembled container houses, it is essential to focus on structural types, steel specifications, process details, modularity adaptability, and supplier service capabilities, as detailed below:

Structural Type Selection

Assembled container houses commonly come in two structural types: welded integral boxes and bolt-connected assembled boxes. Welded integral boxes are fully welded in the factory, with a direct load path where roof loads are transferred through sidewall columns to the bottom sill and evenly distributed to the ground, offering strong resistance to deformation and suitability for frequent lifting and moving scenarios. Bolt-connected assembled boxes use standard plates connected by bolts, with multiple load-bearing nodes along the path. The tightness of these nodes directly affects overall stability, so it is crucial to check the steel wall thickness of columns and bottom sills (common specifications range from 1.5mm to 3mm). Thicker walls provide greater load-bearing redundancy but also increase self-weight.

Steel Specifications and Anti-Corrosion Processes

Steel thickness directly impacts the structural strength and service life of the house. The thickness of main beams and columns must meet national standards. For example, in Jining, where winters are long and temperature variations are significant, using ordinary galvanized sheets can lead to condensation on the inner walls when the temperature difference exceeds 20°C, causing internal dampness. Professional suppliers adjust the coating formula of the plates, such as using a high-weather-resistant polyester resin coating on the outer layer and adding a moisture-proof aluminum foil layer on the inner layer to effectively reduce condensation probability.

Process Detail Inspection

Process quality directly affects the airtightness and durability of the house. For instance, if the gap between the door frame and the box body exceeds 2mm, dust can easily infiltrate indoors during sandy weather. Professional suppliers use CNC bending machines to control the door frame bending angle within ±0.5 degrees and employ ethylene propylene diene monomer (EPDM) rubber seals, which have better weather resistance than ordinary silicone seals and a service life of over 5 years. When purchasing, you can judge the process quality by observing the uniformity of the sealant applied at the joint between the door frame and the box body; uniform and continuous seals indicate mechanized construction rather than manual touch-ups.

Modularity Adaptability

If multiple box bodies need to be combined for use, it is necessary to evaluate the supplier's ability to provide modular solutions. For example, some customers require combining multiple box bodies into two- or three-story office areas, which requires solving structural mechanics issues during vertical stacking. Professional suppliers use 6mm thick square steel as columns and add reinforcing ribs at connection nodes to increase overall compressive strength by about 50%. They also integrate pre-embedded pipelines into the box body chassis and adopt quick-connect designs to reduce on-site construction errors.