This machine is a specialized piece of equipment used to perform bending tests, torsion tests, load offset tests (with display of offset and residual offset) on porcelain or composite post insulators, hollow insulators, bushings, and other specimens. It also performs individual mechanical tests, four-point bending tests, bending-torsion failure tests, load holding tests (time ≤ 2h), and programmed tests. The vertical Structure allows for automatic control of test force and displacement in multiple modes to complete the bending test of the specimen.

The electronic composite bending-Torsion Testing Machine for insulators is manufactured according to relevant insulator testing standards. It not only meets the requirements but also performs programmed tests such as bending and torsion tests, as well as destructive tests. This latest generation composite bending-torsion Testing Machine is widely praised and recognized by the domestic and international insulator industry, the State Grid Electric Power Research Institute, local power research institutes, and insulator manufacturers.

Main Technical Parameters and Performance Requirements of the Main Unit

 Form: Vertical;
 Bending Loading Method: Hydraulic;
 Testing Machine Class: Class 1;
 Maximum Bending Load: 100kN;
 Effective Measurement Range of Bending Force: 2-100kN;
 Bending Loading Space: 1000mm to 15000mm;
 Bending Moment: 100kN × 15m = 1500kN.m;
 Testing Speed: 1～150mm/min; the loading control speed can be set arbitrarily within this range, continuously adjustable (high speed improves work efficiency);
 Load Resolution: 500,000 yards (no internal or external range distinction, only one resolution throughout the entire range, no range conversion conflict);
 Relative Error of Test Force Indication: ±1%;
 Constant Rate Control of Test Force: 1%～100%FS (calculated based on sensor full scale);
 Relative Error of Test Force Control: ±1%;
 Workbench flange diameter: Ф1500mm;
 Sample and workbench flange connection method: T-slot divided into 16 equal parts;
 Workbench rotation angle: 360-degree free rotation
 Moving bending loading beam lifting: Motor driven
 Moving bending loading beam lifting space: 1000-15000mm
 Moving bending loading beam lifting speed: Slow 0.8m/min, fast 8m/min;
 Bending control method: Hydraulic-electro-hydraulic servo closed-loop control (force, displacement, deformation closed-loop arbitrary program control);
 Maximum torque: 30kN.m
 Torsional loading method: Hydraulic
 Effective measurement range of torsional test force (kN): 2%～100%F•S
 Torsional load measurement accuracy: Within ±1% of the indicated value
 Torsional angle: 270° arbitrary control (torsional loading speed, angle-time, force-time arbitrary selection control);
 Torsional angle measurement accuracy: 0.2°