SJJW HT-550 High Strength Test Hammer (60 - 90Mpa, 5.5J)

Submit to JGJ/T23-2011 technology regulation. The instrument is suitable for testing strength of tall building structure, bridge and concrete component etc

Features:

1.Center rod use imported material, high precision and wear proof

2.Shell use super hard aluminums, protect instrument from damage on site work and 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.

Specification

1. test range：60-90Mpa

2. Standard impact energy: 5.5J

3. Rebound spring impact length: 100mm

4. Stiffness of tension spring: 1100N/m

5. Average rebound value on steel anvil: 83±2

6. Sphere radius of rebound pole SR: 18mm

7. Weight: 1.28kg

8. Size: Φ54×350mm