Foundation Anchor Bolts are special fasteners used to fasten equipment, structures, etc. to concrete foundations. Its structure is usually composed of screws, nuts and washers. The screw part goes deep into the concrete foundation, and the equipment or structure is firmly fixed on the foundation through nuts and washers. From the appearance, Foundation Anchor Bolts have various shapes, the most common ones are L-shaped, J-shaped, U-shaped, etc., and each shape is designed for different usage scenarios and needs.

So, what key role does Foundation Anchor Bolts play? First of all, it is a "guard" against external forces. Foundation Anchor Bolts can tightly connect buildings or structures to the foundation, effectively resist these external forces, prevent the structure from displacement, tilting or even collapse, and protect people's lives and property. In the industrial field, for large mechanical equipment that runs at high speed and produces strong vibrations, anchor bolts can stabilize the equipment and ensure that the equipment will not be displaced due to vibration during operation, thereby ensuring smooth production.

There are various types of Foundation Anchor Bolts to meet different engineering needs. Fixed anchor bolts, also called short anchor bolts, are cast together with the foundation, just like deep roots in the foundation. Its length is generally between 100-1000 mm, and the head is designed in special shapes such as split fork, ring, hook, etc. These shapes greatly enhance the anchoring force between it and the foundation to prevent rotation and pulling out during equipment operation. This type of anchor bolt is often used for some equipment with less vibration during operation, such as processing machine tools and ventilation equipment in small factories. The biggest feature of the movable anchor bolt, also known as the long anchor bolt, is that it can be disassembled. It is relatively long, some are double-headed with double-headed threads, and some are threaded at one end and T-shaped at the other end. For heavy machinery and equipment with strong vibration and impact during operation, such as large forging machinery and large crushers, movable anchor bolts can be used in conjunction with anchor plates to firmly grasp the equipment and facilitate disassembly when the equipment needs to be repaired or replaced, providing great convenience for equipment maintenance and adjustment.

Foundation Anchor Bolts are fixed by drilling holes in the foundation and using the principle of expansion anchors to tightly combine the bolts with the foundation. It is relatively simple to install and does not need to be pre-buried during foundation construction. It is suitable for fixing simple equipment that is stationary in some small buildings or factories, such as small ventilation equipment and small distribution boxes. Adhesive anchor bolts are a new type of anchor bolt that has been widely used in recent years. Its installation method and requirements are basically the same as those of expansion anchor bolts. It plays an important role in some places where there are requirements for installation space or it is inconvenient to install traditional anchor bolts, such as the installation of precision instruments and equipment. It can avoid damage to the foundation by traditional installation methods and provide reliable tightening force.

Installing Foundation Anchor Bolts is a job that requires rigorous operation. Before installation, construction people shall take the inspection of each foundation bolt, checking for defects such as cracks and deformations-augers; check whether threads are clear and complete, for the matching nuts, washers, and other parts, are specifications and quality up to standards. Also, the surface of the foundation must be perfectly cleaned and flat and dry. The position and size of the hole of foundation bolts reserved on the foundation should be accurate and avoid debris or water accumulation. Verticality of the anchor bolts should be fully ensured during installation. Construction staff will always monitor by setting up professionally used measuring tools, such as a theodolite or level, to adjust once something deviates from the allowed tolerance.

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