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This pre assembled bolt frame is designed for tower pedestal applications where multiple anchor points must be precisely positioned in a concrete foundation. The frame consists of a circular or rectangular arrangement of bolts held together by steel reinforcement rings and positioning plates, creating a rigid assembly that maintains accurate bolt spacing throughout installation. Available in configurations with 4, 6, or 8 bolts in diameters from M16 to M36, this frame accommodates a wide range of tower and pedestal sizes. The entire assembly is fabricated from Q235B or Q345B structural steel with hot-dipped galvanized finish for long-term durability. While L-type anchor bolt and 9-shaped anchor bolt serve as individual foundation fasteners for lighter applications, this bolt frame provides a complete, pre-aligned system that ensures accurate bolt placement for critical load-bearing structures.
The frame is assembled in a workshop environment using precision jigs and fixtures to ensure consistent bolt spacing and alignment. The reinforcement rings are welded at specified heights, creating a rigid structure that maintains its geometry during transport and handling. The top positioning plate serves as a template for the tower base plate, ensuring a perfect fit without field modifications. Quality control includes dimensional verification, bolt alignment checks, weld inspection, and coating thickness measurement. This bolt frame is commonly used for transmission towers, communication masts, wind turbine bases, and large structural pedestals. Umbrella-type anchor bolt and plate-type anchor bolt handle individual heavy anchors, while this bolt frame provides a coordinated foundation solution for structures requiring multiple precisely positioned anchor points.
Installation is straightforward and efficient. The pre assembled frame is lowered into the foundation excavation, positioned using the built-in locating template, leveled, and secured before concrete pouring. The exposed threaded ends provide a precisely aligned bolt pattern for attaching the tower base plate without additional adjustment. The frame design eliminates the need for individual bolt measurement and positioning, significantly reducing installation time and labor costs. Light pole anchor cage serves similar functions for smaller pole structures, while this bolt frame is designed for larger, more demanding tower applications. Custom bolt patterns and frame dimensions can be produced to meet specific project requirements, ensuring the foundation system matches the structural design precisely.
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Main Product:
Anchor Bolts ,
L-type Anchor Bolt,
Foundation Embedded Anchor Bolts,
Umbrella-type Anchor Bolt,
General Fasteners,
Light Pole Anchor Cage
