NJ-75 brick test hammer

Brief introduction:
Submit to standard of GB/T50315-2000, the instrument is applied to test light material such as brick, light bone concrete etc.

Trait:
1) Center rod use imported material, high precision, wear proof;
2) Shell use super hard aluminums, protect instrument from damage on site test work, prolong use life;
3) Pointer slider is outside ring structure, easy to adjust friction, and assure equal friction between pointer slider and axis. And assure the precision of instrument, compare with similar other brand product, it’s good precision, longer use life and better price. Specially suitable for brick factory or brick user

Parameter:
Standard impact energy: 0.735J
Stroke of rebound hammer: 75mm
Friction of pointer slider: 0.4N~0.6N
Sphere radius of rebound pole SR: 25mm±1mm
Average rebound value on steel anvil: 74±2
Size: Φ54*268mm
Weight: ≈1KG