The gravel impact resistance tester is a specialized device used to evaluate the impact resistance performance of materials when subjected to impacts from gravel or other sharp objects. Based on principles such as free fall or high-speed projection, it simulates the impact of gravel or other sharp objects on the material surface to assess its impact resistance. During the test, a certain mass of gravel or steel pellets is placed in a specific device, and by controlling the falling speed, angle, and number of impacts, the gravel is made to strike the surface of the material under test with a certain energy. Subsequently, high-precision sensors and photoelectric control systems are used to monitor the material's deformation, cracks, or damage, thereby accurately evaluating its impact resistance performance.

Structural Features

Compact Design: The gravel impact resistance tester is typically designed with a compact structure, making it easy to install and use in laboratories or production sites.

User-Friendly: The tester's operation interface is simple and clear, allowing users to easily complete test operations by following the instructions or prompts.

High Precision and Sensitivity: The tester employs high-precision sensors and control systems, enabling accurate monitoring and recording of material deformation, cracks, or damage, ensuring the accuracy and reliability of test results.

The gravel impact resistance tester is a new type of testing machine that meets various standards for evaluating the resistance of automotive materials and surface coatings to gravel impact.

1. Test Environmental Conditions:

Ambient temperature: 5~35°C, relative humidity <85%RH, test chamber contains samples.

2. Pressure Range: 0~1 MPa (adjustable)

3. Air Tank Volume: 136 L

4. Gun Barrel Inner Diameter: 53 mm

5. Maximum Sample Dimensions: Width ≦195 mm, Thickness =35 mm, Length ≦240 mm

6. Noise Level: Noise ≦130 dBA (operators must wear protective earplugs and goggles)

7. Operation Mode: Suitable for continuous operation

8. Test Media: Pebbles, chilled cast iron gravel, and steel balls

9. Adjust Impact Angle According to Standard Requirements (45°, 54°, or 90°)

10. Overall Dimensions: 1500×450×1600 mm

10. Feed Rate: Adjusted via pneumatic vibrating feeder

Overall Structure of the Gravel Impact Resistance Tester:

Angle-adjustable impact chamber, 3D impact chamber, spray gun, collection box, electrical control cabinet, power (air) requirements  ASTM D31701  Power Requirements

1. AC 220V;

2. Allowable Voltage Fluctuation Range: AC220V (1±10%)

3. Allowable Frequency Fluctuation Range: (1±1%) 50Hz

4. Users are required to configure an air or power switch of corresponding capacity at the installation site, and this switch must be dedicated solely to this device. Power capacity: 500W, maximum current: 5A.

2. Air Supply Requirements

Compressed air is required during device operation, with a pressure range of 0-0.8 MPa.

Application Areas

The gravel impact resistance tester has an extremely wide range of applications, covering all fields that require evaluation of material impact resistance performance. For example:

Buildings and Roads: By simulating the impact of road gravel on building materials and roads, their compressive, tensile, and other mechanical properties are tested to ensure durability and safety.

Aerospace: Testing the impact resistance performance of aerospace materials under extreme conditions to ensure their safety and reliability during flight.

Automotive: Simulating the impact of gravel on vehicle bodies, windows, windshields, and other components during driving to test their impact resistance, thereby improving vehicle safety and durability.

Railways and Bridges: Testing the performance of structural materials such as railway switches and bridges under gravel impact to ensure their load-bearing capacity and safety.

IV. Test Parameters

The gravel impact resistance tester can perform tests with various impact methods, including sliding angle, impact material velocity, impact angle, type of impact material, impact energy, etc. By adjusting these parameters, more realistic and credible test results can be obtained.

Market Price

The price of a gravel impact resistance tester varies depending on factors such as brand, model, and configuration. Generally, the price of common gravel impact resistance testers on the market ranges from tens of thousands to hundreds of thousands of RMB. The specific price should be comprehensively considered based on user requirements, budget, and supplier quotations.