It is a testing machine that evaluates the brittleness (rigidity and softness) of materials such as paper, plastic film, and textiles using the Clark method.
- The Clark hardness testing machine (Clark-type Stiffness Tester) evaluates the hardness (rigidity and flexibility) of materials such as paper, plastic film, and textiles according to the Clark method. - The test specimen is sandwiched between two rolls, and by turning the handle, it is rotated to the left and right at a speed of 1.0 ± 0.1 revolutions per minute to a specified angle (90 ± 2° for textiles, 88 to 95° for paper). The length of the specimen that falls due to its own weight (critical length) is measured. - The Clark hardness is calculated from the measured protrusion length. <Reference Standards> JIS-(L1018), L1096, P8143, TAPPI-(T451) 【About Catalog Download】 Please request the catalog from the related links below or by contacting us. *For products without a standalone catalog, please request the comprehensive catalog.
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■Test specimen: Paper: Width 15 to 50 mm (standard 30 mm), length 75 mm or more Fabric: Width 20 mm, length 150 to 200 mm ■Roll: Diameter φ29.0 ± 1.0 mm ■Angle scale: Left and right 0 to 90° (scale 1°) ■Grip rotation speed: 1.0 ± 0.1 rpm (manual) ■Dimensions and weight: Approximately W160 × D170 × H210 mm; approximately 3 kg
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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.