What are ultrasonic bolt tension instruments?

Ultrasonic bolt tension devices measure bolt elongation, applied load, stress, and strain using high-frequency sound waves without disassembling the joint.

Where are bolt tension instruments used?

They are used in power plants, pressure vessels, refineries, turbines, offshore structures, pipelines, heavy machinery, and any critical bolted connection.

How do ultrasonic bolt tension gauges work?

They send an ultrasonic pulse through the bolt. The return echo time increases with bolt elongation, allowing calculation of load and stress.

What advantages do ultrasonic methods have over torque measurement?

Ultrasonic tensioning measures actual bolt strain, not estimated torque, providing much higher accuracy and eliminating friction-related errors.

Bolt Tension

Bolt tension instruments are specialized ultrasonic measurement devices designed to evaluate bolt elongation, applied load, axial stress, and percentage strain with high precision. This category includes handheld and bench-top bolt tension systems engineered for critical fastening applications where accuracy and structural integrity are essential.

These instruments are widely used in power generation facilities, petrochemical plants, heavy machinery assembly, wind turbines, pressure vessels, pipelines, marine structures, and industrial bolted joints. Bolt tension systems provide reliable verification of bolt loading, support preventive maintenance, ensure compliance with safety standards, and maintain long-term structural performance in demanding environments.