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Looking for Fully Compliant Torsion Testing Machine for GB/T 239 and GB/T 3428 Wire Inspection? HST Launches HST-HEZ-10F Model
As quality supervision authorities impose stricter torsion Test standards for overhead galvanized steel wires and metal wire raw materials, manufacturers and labs are struggling to find Testing equipment that fully meets GB/T 239.1-2023, GB/T 239.2-2023 and GB/T 3428-2024. HST GROUP (Jinan Hensgrand Instrument Co., Ltd.) rolls out its upgraded HST-HEZ-10F Metal Wire Torsion Testing Machine, a professional testing device designed to satisfy all test specifications stated in China’s national wire standards and global ISO torsion test norms.
Why GB/T 239 and GB/T 3428 Compliance Matters for Wire Factories
GB/T 3428-2024 governs zinc-coated steel wires for overhead power conductors, which defines Torsion Testing as a mandatory QC procedure to evaluate wire ductility and expose hidden defects including cracks, peeling and internal inclusions. All torsion test procedures must strictly follow GB/T 239 series standards: GB/T 239.1 for one-way torsion tests and GB/T 239.2 for reverse two-way torsion tests. Non-compliant testing equipment will generate invalid inspection reports and cause failed factory audits, product delivery delays and safety risks for power transmission projects.
Full Technical Parameters of HST-HEZ-10 Torsion Testing machine
|
Model |
HEZ-10F |
|
Loading method |
Automatic loading |
|
Display method |
Touch screen display |
|
Wire diameter |
1.0≤d(D)≤10.0 |
|
Space between two fixtures |
500mm |
|
Jaw clamping range |
1.0≤d(D)≤10.0 |
|
Clamping block hardness |
＞55HRC |
|
Torsion speed |
15-120r/min (stepless speed regulation) |
|
Speed error |
＜±5% |
|
Minimum reading value of turns |
0.1 |
|
Max number of turns |
999999999 |
|
Size (L * W * H) |
1700x400x1300mm |
|
Net weight |
245kg |
|
Power |
AC 380V±10%,50Hz, 3-phase |
Jinan Hensgrand Instrument Co., Ltd.
+86-15910081986 
+86-15910081986 
4915,West jingshi Road,jinan 250012,PR CHINA. 