PRODUCT DETAILS
The CTH-90 Concrete Test Hammer is a professional rebound hammer engineered for precise compressive strength estimation of concrete.
It features imported high-quality springs that offer superior fatigue resistance, ensuring consistent performance over thousands of tests. The aluminium alloy spring seat snap ring assembly provides secure and stable operation.
With an improved pointer design, the CTH-90 Concrete Test Hammer allows easy friction adjustment and delivers more stable readings. Its super hard 6061 aluminium alloy casing resists abrasion and wear, while the button is reinforced with a stretching process to prevent detachment even under heavy field use.
CNC machining centres and other advanced machine tools are employed to refine the movement mechanism, guaranteeing reliable rebound values. This CTH-90 Concrete Test Hammer is an indispensable tool for construction quality control and structural assessments.
The CTH-90 Concrete Test Hammer package includes a grinding stone for surface preparation, a maintenance kit with essential tools, a pointer slider and buffer spring for replacement, and a sturdy instrument box for safe storage and transport.
CTH-90 Concrete Test Hammer Specifications
| Parameter | Value |
| Standard impact energy | 2.207 J |
| Pointer length | 20.0 ± 0.2 mm |
| Friction of pointer | 0.65±0.15 N |
| Spherical radius of bouncing rod | 25 ±1.0 mm |
| Elastic tension spring stiffness | 785.0 ±30.0 N/m |
| Operating length of elastic tension spring | 61.5 ±0.3 mm |
| Bounce hammer take-off position | Scale “0~1” |
| Calibration value on testing anvil | 78-82 |