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This steel bolt frame is designed for heavy tower pedestals in transmission line projects, communication towers, and wind turbine foundations. The frame features a robust circular arrangement of 6 to 12 high-strength bolts, held together by heavy reinforcement rings and positioning plates that maintain accurate bolt spacing throughout installation. Available in diameters from M24 to M42 and lengths from 1000mm to 3000mm, this frame is engineered for the most demanding tower foundation applications. The assembly is manufactured from Q345B high-strength structural steel with hot-dipped galvanized finish for comprehensive corrosion protection. 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 tower structures.
The frame is fabricated in a controlled workshop environment using precision jigs and fixtures to ensure consistent bolt spacing that meets structural specifications. The heavy reinforcement rings are welded at specified heights, creating a rigid assembly that maintains its geometry during transport and installation. 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 in infrastructure projects. 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 high-strength anchor points.
Installation involves placing the frame in the foundation excavation, positioning using the built-in locating template, leveling precisely, and securing before concrete pouring. The exposed threaded ends provide a precisely aligned bolt pattern for attaching the tower base plate without additional drilling or adjustment. The frame design eliminates the need for individual bolt measurement and positioning, saving significant time and labor on site while ensuring accuracy. For critical infrastructure projects such as high-voltage transmission lines and wind farms, this bolt frame provides the accuracy and reliability needed for structures that must withstand extreme loads. Custom bolt patterns, bolt diameters, 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
