The ring crush test measures the compressive strength of paper and board when rolled into a ring shape and subjected to a vertical load.
- The ring crush method measures the compressive strength of paper and board when wrapped in a ring shape and subjected to vertical load. - The test specimen is attached to a support device consisting of an outer frame and an inner frame. - The specimen is compressed at a specified speed until it collapses. - The maximum compressive force is measured using a load cell. - Optionally, by exchanging fixtures, tests for the adhesive strength of cardboard, as well as flat compression and vertical compression tests, can also be conducted. <Reference Standards> JIS-P8126, ISO-12192 (Options: Z0402, Z0403-1, Z0403-2) 【About Catalog Download】 Please request the catalog through the related links below or by contacting us. *For products without individual catalogs, please request the comprehensive catalog.
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■Test specimen: Width 12.7 ± 0.1 mm, Length 152.4 ± 2.5 mm, Thickness 580 µm or less ■Test specimen support: Outer frame: Inner diameter φ49.30 ± 0.05 mm, Depth 6.35 ± 0.25 mm Inner frame: Select from 9 types ■Load measurement: Load cell, Max. 1,999 N ■Compression plate: 100 × 100 mm ■Compression speed: 12.5 ± 2.5 mm/min
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