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The dig-free floor spring is a novel floor spring structure that requires no excavation or burial in the ground. Its core advantages lie in its ease of installation and subsequent maintenance. While traditional floor springs require pre-excavation, the placement of a concrete box, and subsequent solidification, the dig-free design allows for rapid installation through modular components, primarily consisting of a base, housing, axle, and cover. Installation requires simply screwing the base to the ground through mounting holes. The connecting pins of the floor spring body or the bottom end of the axle are then inserted into the mounting slots in the base. This eliminates complex construction steps and significantly reduces construction time. Subsequent repairs and replacements can be performed simply by removing the cover without disturbing the ground.

 

Mirror finish is a high-precision process applied to the external components of dig-free floor springs, such as stainless steel covers and end caps. Polishing and grinding creates a mirror-like, high-gloss reflective finish, enhancing the product's aesthetics while also enhancing corrosion and wear resistance. For example, some dig-free floor spring covers are made of 304 stainless steel with a mirror finish, providing both rust-proofing and decorative properties. They are suitable for high-end commercial spaces, hotels, and other applications requiring a high level of aesthetic appeal. Combining its excavation-free feature with a mirror finish, this type of floor spring achieves a unity of function and aesthetics while ensuring structural stability (such as the load-bearing capacity of the aluminum alloy base and the tight fit between the spring block and the axle slot), making it a preferred solution for modern door control systems.