Puyun brand PY-J633 series paper and cardboard film three-point bending stiffness testing machine (material testing machine) is a multi-functional stiffness Tester, mainly used to measure the indentation force (that is, the rebound force of 90 degree creases) of cardboard and color boxes (such as cigarette boxes and cosmetics boxes), and is the basic instrument for testing the flexural strength performance of paper and cardboard. The three-point stiffness Tester is the basic instrument for the three-point stiffness performance testing of cardboard, which adopts a vertical and multi-column structure, and the chuck spacing can be arbitrarily set within a certain range, with large tensile stroke, good stability up and down running, and high test accuracy. The instrument is suitable for paper, cardboard, paper core, plastic, film and other non-metallic materials.
GBT 22906.6-2008 Determination of paper cores – Part 6: Determination of flexural strength (three-point method)
GBT 23144-2008 Paper and cardboard -- Determination of static bending stiffness -- General principle (two, three, four points)
•GBT 1449-2005 Test Method for Flexural Properties of Fiber Reinforced Plastics (Three Points)
(1). The mechanical opening switch protects the upper and lower limit strokes
(2). Emergency emergency stop switch braking protection
(3). Overcurrent, overVoltage, undercurrent, underVoltage, leakage overload protection
(4). Software overload limit protection
(5). Breakpoint shutdown protection
(6). Emergency braking can be carried out in case of emergency