Description
Atomfair-DRH-638 Integral Digital Rebound Hammer
Atomfair – Professional Integral Digital Rebound Hammer for Concrete Strength Testing
Product Overview
The Atomfair-DRH-638 Integral Digital Rebound Hammer is a high-precision, portable testing instrument designed for on-site detection of concrete compressive strength. With its integrated structural design, advanced photoelectric sensing technology, and user-friendly operation interface, it provides accurate and reliable test results efficiently, making it an essential tool for quality inspection in various construction projects.
Key Features
- Integrated Structural Design: Seamlessly combines the rebound hammer main unit with the sensor, no connecting wires required, ensuring easy portability. The display and mechanical head can be easily disassembled and assembled, and one display can be matched with multiple mechanical heads to improve equipment utilization.
- High-Definition Display Interface: Equipped with a 1.54-inch OLED display with 128×64 resolution, supporting Chinese and English interface switching for simple and intuitive operation.
- High-Precision Detection Technology: Adopts non-contact photoelectric sensor, completely avoiding mechanical wear, poor contact and other defects that are prone to occur in contact sampling methods (such as potentiometer mode). It has the characteristics of high precision and long service life, while retaining the mechanical pointer scale for double guarantee of reading reliability.
- Large-Capacity Data Storage: Can store data of up to 200 standard components, and each standard component can record data of up to 99 test areas, fully meeting the needs of on-site actual testing work.
- Convenient Data Transmission: Equipped with USB 2.0 full-speed communication interface, virtual USB flash drive mode, no need to install any drivers, and can quickly export data to a computer to improve work efficiency.
- Accurate Time Recording: Built-in real-time clock and calendar function, which can automatically record the test date and time of each component, facilitating the traceability and management of test data.
- Intelligent Low-Power Management: Allows free setting of screen backlight brightness and automatic sleep time, with automatic shutdown function to effectively extend the battery life of the device.
- Environmentally Friendly and Long-Lasting Power Supply: Uses high-power AA nickel-metal hydride rechargeable batteries (1.2V, approximately 2500mAh) with long service life, energy saving and environmental protection, and long standby time; equipped with 5V/1A DC charging power adapter for convenient charging.
Specifications
| No. | Item | Unit | Specification |
| 1 | Nominal Kinetic Energy | J | 2.207 |
| 2 | Strength Testing Range | MPa | 10 ~ 60 |
| 3 | Impact Spring Stiffness | N/m | 785±30 |
| 4 | Impact Spring Stretching Length | mm | 75±0.3 |
| 5 | Impact Spring Working Length | mm | 61.5±0.3 |
| 6 | Anvil Calibration Rebound Value | – | ≤80±2 |
| 7 | Sampling Indication Consistency (Difference between Digital Display Value and Pointer Reading) | – | ≤0.5 |
| 8 | OLED Display Resolution | – | 128×64 |
| 9 | Data Storage Capacity (Components) | – | <200 |
| 10 | Clock and Calendar Function | – | Yes |
| 11 | Display Interface Language | – | Chinese/English Switchable |
| 12 | Communication Interface (Virtual USB Flash Drive, No Driver Installation Required) | – | USB2.0 Full Speed |
| 13 | Charging Power Adapter | – | DC 5V/1A |
| 14 | External AA Nickel-Metal Hydride Rechargeable Battery | – | 1.2V, ~2500mAh |
| 15 | Power Consumption (Maximum Backlight) | mA | ≈200 |
| 16 | Weight | kg | ≈1.0 |
Application Scope
This instrument is suitable for engineering quality testing organized by metrological testing institutions, as well as on-site quality spot checks by various engineering quality supervision institutions and supervision units. It can instantly obtain the compressive strength test results of the sampled concrete structures on site, greatly improving the engineering quality testing efficiency of various testing institutions.
Application Fields
Widely used in real estate construction projects, expressway and bridge construction, professional testing institutions, engineering supervision companies and other various concrete structure-related scenarios.
Applicable Standards
Complies with international general standards for rebound hammer testing of concrete compressive strength and rebound hammer verification.
Safety Warnings
Do not use alkaline batteries to connect to a computer for data transmission. This operation is equivalent to charging alkaline batteries, which may cause alkaline battery explosion and pose a serious safety hazard.
Package Includes
1 × Atomfair-DRH-638 Integral Digital Rebound Hammer, 1 × 5V/1A DC Charging Power Adapter, 4 × AA Nickel-Metal Hydride Rechargeable Batteries, 1 × User Manual
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.


