ELECTRIC TENSION AND TORQUE CALIBRATOR

In the actual construction process, equipment accidents often occur due to the influence of the quality and installation of mechanical parts or equipment bolts when connecting with high-strength bolts. Among them, bolt pretightening force is insufficient, resulting in bolt loosening, machine parts or equipment operating vibration is too large, bolts in long-term service, shear fracture, and eventually cause a large proportion of major accidents. Investigate its reason, first of all, is the bolt itself quality is not good, the design and manufacturing process problems; Secondly, in the process of installation and maintenance of bolt preload is insufficient, vibration caused in the process of operation.

In the process of bolt installation, if the bolt preload exceeds the upper limit of the range, the bolt will be plastic deformation, or even broken; If the bolt pre-load is less than the lower limit of the range, there will be gaps between the two connecting parts. In the operation process, especially under harsh conditions, the stress of the parts increases by about 95% than normal, resulting in brittle fracture of the bolt.

Accordingly, the fastening degree of bolt, direct concern the service life of machine parts or equipment. In view of the bolt status, it is necessary to test the axial force of the installed bolt, resulting in bolt accidents. It is recommended to use OAK electric tension and torque calibrator

　　OAK electric tension and torque calibrator

　　Electric tension and torque calibrator is used to test bolts and check tools. It can display torsion force and axial force at the same time. Equipped with touch screen, it can record historical data and replace three force value units.

　　Characteristics of OAK electric tension and torque calibrator　:

　　1. The axial force torque meter adopts integrated design, which can effectively save volume and total amount, and can be transported to the current construction site for real-time detection

　　2, the use of high-precision electronic sensor, due to the small size, calibration instrument without removing and assembling the sensor, to avoid assembly errors.

　　 OAK electric tension and torque calibrator