High Strength Umbrella Type Embedded Fastener

This load spreading anchor bolt is engineered for heavy equipment installations where standard foundation bolts would create excessive stress concentrations in the concrete. The wide base design features an expanded foot that distributes forces over a larger bearing area, reducing the risk of concrete cracking or failure under dynamic and impact loads. Available in diameters from M20 to M30 and lengths from 800mm to 2000mm, this anchor is suitable for large presses, compressors, turbines, and other heavy industrial machinery. The anchor is manufactured from Q345B structural steel with hot-dipped galvanized finish for corrosion protection in demanding industrial environments. While standard Anchor Bolts and L-type anchor bolt rely on mechanical interlock within the concrete, this load spreading design achieves its holding capacity through effective force distribution across a wider concrete surface area.

The manufacturing process includes forging of the expanded base to create the characteristic load-spreading geometry. The base is formed through controlled heating and pressing to ensure consistent dimensions and material integrity. Thread rolling follows to produce accurate threads for standard nut fit. Quality control includes dimensional verification, base geometry inspection, coating thickness measurement, and tensile testing. Load spreading anchors are commonly specified for heavy machinery foundations, industrial press installations, compressor bases, turbine mounts, and large generator sets. The expanded base design effectively prevents localized concrete failure, maintaining structural integrity under sustained heavy loading and vibration. In projects where 9-shaped anchor bolt and umbrella-type anchor bolt are used for different load conditions, this load spreading anchor provides the broad force distribution needed for equipment that generates significant dynamic forces.

Installation requires careful positioning of the expanded base within the concrete formwork to ensure full embedment at the correct depth. The base must be oriented correctly to achieve its full load-spreading capability. For critical applications, installation drawings and positioning templates are provided to ensure accurate placement. Once concrete has cured, the exposed threaded rod provides a connection point for equipment mounting. Plate-type anchor bolt offers a similar load distribution approach with a flat plate design, while this anchor features a forged expanded base that may be preferred for certain foundation configurations. Light pole anchor cage applications typically use different anchoring methods for pole foundations, while this load spreading anchor is optimized for heavy equipment mounting where vibration and impact loads are significant concerns. Custom base sizes and rod lengths can be produced to meet specific project requirements, ensuring the anchor matches the equipment base plate dimensions precisely.