Mobile Toilet Square Tube Frame
The square tube frame of mobile toilets is typically made of galvanized square tubes or low-alloy high-strength structural steel, featuring corrosion resistance, strong load-bearing capacity, wind and earthquake resistance, and the ability to withstand long-term outdoor use.

Material Characteristics
Galvanized square tubes are a common material for mobile toilet frames. Their surfaces are coated with a layer of zinc, effectively isolating air and moisture and significantly enhancing corrosion resistance, making them particularly suitable for humid or rainy outdoor environments. Additionally, galvanized square tubes are treated with a hot-dip galvanizing process, ensuring a tight bond between the zinc layer and the steel, further extending their service life. Low-alloy high-strength structural steel, on the other hand, incorporates small amounts of alloying elements (such as manganese and vanadium) to increase strength while maintaining steel toughness, offering superior load-bearing capacity compared to ordinary carbon steel and making it suitable for supporting the overall structure of mobile toilets.
Structural Design and Process
The square tube frame design of mobile toilets emphasizes stability and durability. For example, some products use 80×80 mm galvanized square tubes as the main keels, paired with 1.5 mm thick square tubes for welding, forming a sturdy skeletal structure. The bottom frame is typically welded into a mesh pattern, enhancing load-bearing capacity while facilitating drainage and ventilation. After welding, the frame undergoes rust prevention treatment, grinding, and polishing to eliminate weld burrs, improve surface smoothness, and further prevent rusting.
Wind and Earthquake Resistance
The mainstream mobile toilet frames in the industry, made of low-alloy high-strength structural steel or galvanized square tubes, possess extremely high wind and earthquake resistance. Through optimized structural design (such as adding diagonal braces and reinforcing joints), the frames can withstand winds of 8-10 grades, ensuring safety in severe weather conditions. Additionally, corrosion prevention treatments (such as hot-dip galvanizing and spraying anti-rust paint) extend the frame's lifespan to over 20 years, reducing maintenance costs.
Application Scenarios
Mobile toilets with galvanized square tube frames are widely used in outdoor environments such as scenic spots, construction sites, and temporary event venues. Their lightweight design facilitates easy transportation and installation, while their corrosion-resistant and strong load-bearing properties meet long-term use requirements. For example, some scenic spots have adopted mobile toilets with galvanized square tube frames, which remain structurally stable after years of exposure to wind and rain, requiring only regular cleaning to maintain functionality.




