Designed as a measuring device for efficiently conducting axial force tests on torsion bolts, it consists of the main measuring unit and accessories such as a nut tightening attachment.
The measuring device itself is fundamentally a hydraulic system, with a hole in the center of the body for inserting a test bolt. By tightening the bolt, nut, and washer set in this hole with a Tonesha wrench, hydraulic pressure is generated inside the measuring device. This hydraulic pressure is then converted into a value representing the axial force (tension) of the bolt, which is displayed on the dial gauge, allowing for direct reading of the axial force. ■ Equipped with a protector that withstands harsh conditions It firmly protects the gauge section even under severe usage conditions. ■ Large, easy-to-read Newton display scale The pointer is synchronized with the tightening speed, making measurement tasks easier. ■ Bolt rotation stop Bolt rotation stops are applied to the plate and bushing. ■ Field-compatible clamp device Convenient for attachment to steel frames and other structures. ■ Compact, lightweight, and high precision
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basic information
■Measurement Method: Hydraulic ■Measurement Range: 50–400 kN ■Graduation: 5 kN ■Target Bolt Sizes: M16, M20, M22, M24 ■Measurement Targets: High-strength torsion bolts, hex high-tensile bolts ■Measurement Accuracy: Within ±3% (120–260 kN) ■Body Weight: Approximately 10 kg ■Dimensions: 239W × 91D × 358Hmm ■Measured Bolt Sizes: High-strength hex bolts, torsion type high-strength bolts (Bolt nominal diameter: Length under the bolt head (mm)) M16: 65–70 M20: 75–80 M22: 80–85 M24: 85–90
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Applications/Examples of results
■Investigation of optimal tightening torque ■Strength testing of bolted joints
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Company information
We, Soki, have been challenging new ways to "measure" with our "technological capabilities" and "on-site capabilities" since our establishment as "Soki Shokai" in April 1986, based on our desire to "create a new century with measurement technology." As a specialized store in the surveying and measurement field of the Kanamoto Alliance Group, we will continue to focus on "rental of surveying and measuring equipment," "development of automatic measurement systems," and "development of original products." We are committed to working together as a united team to meet the expectations of all our stakeholders. We sincerely appreciate the continued support and patronage of our customers and partners.