SCHMIDT HAMMER

Description

Technical Specifications:

1. Type: Rebound Hammer (Schmidt Hammer)
2. Measurement Range:
   • Standard Model (Type N): 10–100 MPa (1450–14500 psi)
   • Low Energy Model (Type L): 5–30 MPa (725–4350 psi)
   • High Energy Model (Type M): 20–150 MPa (2900–21750 psi)
3. Impact Energy:
   • Type N: 2.207 Nm (0.16 lb-ft)
   • Type L: 0.735 Nm (0.054 lb-ft)
   • Type M: 29.43 Nm (21.7 lb-ft)
4. Accuracy: ±1 Rebound Number
5. Weight: 1.0 – 1.2 kg (2.2 – 2.6 lbs)
6. Material: Aluminum Alloy Casing with Hardened Steel Plunger
7. Dimensions: Approx. 280 mm x 75 mm
8. Calibration: Requires Calibration on an Anvil (Standard Calibration: 80 ± 2 Rebound Number)
9. Standards Compliance:
   • ASTM C805
   • EN 12504-2
   • IS 13311-2
   • BS 1881-202
10. Operating Temperature: -10°C to 50°C (14°F to 122°F)
11. Surface Requirements:

• Minimum thickness of concrete: 100 mm
• Surface should be smooth, dry, and clean

12. Readout System: Analog Scale or Digital Display (for digital models)
13. Usage:

• Non-Destructive Testing (NDT) of Concrete Strength
• Quality Control and Compressive Strength Estimation