The GESTER GT-C39B Zipper Rotation Testing Machine is a highly specialized mechanical tester engineered explicitly to measure the torsional strength, twist tolerance, and torque degradation of zipper sliders and pullers. Supporting advanced interactive operational modes—including twist-off, constant angle, and constant load—it isolates the exact mechanical failure thresholds of slider bodies and pull-tab joints. Equipped with a touch-screen control panel and heavy-duty stainless steel fixtures, the GT-C39B ensures precise data logging to satisfy strict hardware-focused safety benchmarks including ASTM D2061, 16CFR 1500.51-53, and EN 16732.
The GESTER GT-A42 Full-Automatic Filament Interlace Detector is a high-precision, computer-controlled testing instrument designed to accurately measure the network degree, interlacing nodes, and network strength of synthetic fiber filaments such as FDY and DTY. Operating strictly under the FZ/T 50001 standard, this advanced machine utilizes the reliable instrument needle-moving method to guarantee the tensile and structural quality of yarns used in high-end textiles.
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