Concrete testing hammer In structural engineering,
A Langley-type concrete testing hammer used to test the compressive strength of ordinary concrete in the range of 10 to 70 N/mm² (1,450 to 10,153 psi).
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■Specifications Model Number M4523H-336AL M4523H-75AL Standard Impact Energy 2.207 J 0.735 J Pointer Length 20.0 ± 0.2 mm 20.0 ± 0.2 mm Pointer Friction 0.65 ± 0.15 N 0.5 ± 0.1 N Spherical Radius of Rebound Rod 25 ± 1.0 mm 25 ± 1.0 mm Stiffness of Elastic Tension Spring 785.0 ± 30.0 N/m 261.0 ± 12.0 N/m Operating Length of Elastic Tension Spring 61.5 ± 0.3 mm 61.5 ± 0.3 mm Starting Position of Bounce Hammer Scale "0-1" Scale "0-1" Calibration Value of Test Anvil 80 ± 2 74 ± 2
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■Technical Advantages ●The imported high-quality springs have excellent fatigue resistance, and the spring seat uses an aluminum alloy snap ring assembly. ●The design of the pointer has been improved for easier friction adjustment, resulting in more stable operation. ●The casing made of ultra-hard 6061 aluminum alloy has excellent wear resistance and is structured to prevent buttons from falling off even after the molding process. ●The movement is precisely processed using machine tools such as CNC machining centers, ensuring guaranteed rebound values.
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