Measuring strength ranges: 50-80Mpa Normal impact energy: 9.8J1Kgf.m) Strike hammer stroke: 140 mm   The friction force of pointer slider: 0.5±0.8N The rebound values calibrated on steel anvil: 83±2 Stiffness of strike tension spring10N/cm Dimensions: Φ65*486mm Weight: ≈3.5Kg

1) Center oriented rod using imported materials, high precision, wear-resistant;

2) As per shell use superhard Al alloy material, therefore it avoid to damage instrument in-site woke, and to extend the instruments life;

3) Pointer slider with external spring ring structure, not only it is convenient for the friction adjustment, but also it ensures that the friction force for pointer shaft and slider is

uniform, and to ensure the accuracy of the instrument.

The product accuracy is high relative to same products, at the same time , it quality is best and price is cheap, and  instruments life is long.