AT402 Dumbbell Sample Milling Machine is designed for preparing dumbbell-shaped non-metallic test specimens. This instrument complies with the following international and industry standards: GB/T 8804.2, GB/T 8804.3, GB/T 8802, and GB/T 1633. It eliminates the need for repeated knife confirmation, improving work efficiency. The shape and size of the sample are controlled by the equipment, avoiding sampling differences caused by different users. Equipped with a vacuum cleaner to ensure a clean environment during the preparation process. The cutting surface of the specimen is smooth and burr-free, avoiding the influence of processing defects on tensile test results. Technical Specification Model: AT402 Max. sample thickness: 20mm Milling cutter dia.: 30mm Rotating speed: 2810r/min Dimension: 500mm×450mm×450mm Power supply: AC380V 50Hz 180w Weight: 70kg