There are two types: the helical coil rewind angle method and the spring back method.
<Helical Coil Return Angle Method> - Wrap the specimen around the mandrel 5 times at the specified rotation speed, mark it, and then remove the weight. - Slowly release the tension and read the scale of the return angle at the end of the 5th turn to evaluate softness. <Reference Standards> C3216-3, IEC-60851-3 <Spring Back Method> - Insert one end of the specimen into the stop hole to be wrapped around the mandrel, and hang a weight from the other end. - Wrap the specimen around the mandrel 3 times at a rotation speed of 5 to 10 times per minute, mark it, and then remove the weight. - Slowly return the specimen wrapped around the mandrel and read the scale at the position where the mark stopped to evaluate softness. <Reference Standards> JIS-(C3003), C3216-3 (Appendix JA Alternative Test Method), IEC-60851-3 [Regarding Catalog Download] Please request the catalog from the related links below or by contacting us. *For products without individual catalogs, please request the comprehensive catalog.
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【Helical Coil Unwinding Angle Method】 ■Sample: 1 m, conductor diameter φ0.08 ～ φ1.6 mm ■Mandrel rotation speed: 1 ～ 3 rpm (manual or electric) ■Mandrel diameter: φ5 mm, φ7 mm, φ10 mm, φ12.5 mm, φ19 mm, φ25 mm, φ37.5 mm, φ50 mm ■Load: 0.25N, 0.5N, 1N, 2N, 4N, 8N, 12N, 15N ■Scale: 0 ～ 72 ■Dimensions & Weight: Approximately W128 × D190 × H184 mm; approximately 4.3 kg (manual) *The spring back method has different specifications. Please refer to the website or catalog.
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At Yasuda Seiki Manufacturing, we guarantee quality through test data and are making steady efforts to create testing machines that solve various issues in quality control. Many of these conform to global standards and meet the essential requirements of the borderless era. Please utilize the innovative physical property testing machines from "YASUDA SEIKI" for your company's quality control and research and development.
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