Extensometer

The Extensometer E1000 is a precision stud elongation measurement tool designed for turbine bolting, stud tensioning, and fastening verification applications. The E1000 provides accurate bolt stretch measurements to improve clamping force accuracy, joint reliability, and turbine performance during installation, outages, maintenance, and overhaul operations.

Engineered for precision and repeatability, the E1000 delivers consistent measurement performance in demanding outage, field service, and industrial maintenance environments. Its rugged industrial construction is built to withstand harsh operating conditions while maintaining dependable accuracy during repeated turbine bolting procedures. The tool’s precision measurement capability helps improve bolting consistency, reduce assembly errors, and support proper alignment and equipment reliability throughout turbine service operations.

Key Features

• Precision measurement of stud elongation and bolt stretch
• Designed for turbine studs with center holes
• Compatible with GE and Siemens-Westinghouse turbine applications
• Improves bolt preload and clamping force accuracy
• More accurate than torque-only tensioning methods
• Helps reduce uneven loading and fastener fatigue
• Rugged construction for outage and field service environments
• Ideal for turbine installation, overhaul, and maintenance operations
• Provides consistent and repeatable measurement readings
• Supports safe, reliable turbine bolting procedures

Precision Extensometer Scale – The easy-to-read graduated scale accurately measures turbine stud elongation, allowing technicians to verify proper bolt preload through direct stretch measurement. This improves tightening accuracy, promotes uniform clamping force, and helps ensure reliable turbine assembly and maintenance.

The extensometer scale is one of the most important features of the E1000 because it provides a direct measurement of stud elongation, which is the preferred method for verifying proper bolt tension on critical turbine joints. Since friction can cause torque readings to vary significantly, measuring actual stretch helps ensure each stud is tensioned uniformly, improving equipment performance and reducing the risk of fastener failure.