PRODUCT DETAILS
Superior Fatigue Resistance & Lightweight Build
The High-Precision CTH-90 Concrete Test Hammer is engineered with imported high-quality springs that offer exceptional fatigue resistance, paired with an aluminum alloy spring seat snap ring assembly. This combination ensures consistent impact energy over tens of thousands of tests while significantly reducing overall weight for prolonged field operation.
Enhanced Pointer Precision & Stability
Featuring an upgraded pointer design, the High-Precision CTH-90 Concrete Test Hammer allows for easy friction adjustment and delivers more stable, drift-free readings. This ensures that every rebound value you record is highly reliable for critical strength estimations.
Unmatched Durability for Harsh Job Sites
Built with a super hard 6061 aluminum alloy casing and a button reinforced through a special stretching process, the SMTOER CTH-90 Concrete Test Hammer offers excellent abrasion and impact resistance. This rugged construction ensures the button remains firmly attached and the housing withstands tough construction environments without deformation.
CNC-Machined Movement for Guaranteed Accuracy
The internal movement of the SMTOER CTH-90 Concrete Test Hammer is meticulously refined using advanced CNC machining centers and other precision machine tools. This guarantees highly consistent and repeatable rebound values, ensuring your on-site assessments meet the strictest quality standards.
| 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 |
The SMTOER CTH-90 Concrete Test Hammer successfully merges four critical advantages into one cost-effective package: imported spring longevity, pointer reading stability, 6061 aluminum abrasion resistance, and CNC-guaranteed precision. It directly addresses the common industry frustrations of data drift, fragile buttons, and heavy handling fatigue.
By choosing this model, your team gains a reliable, maintenance-friendly NDT tool that reduces rework risks and enhances daily inspection efficiency.