1、 Product Overview

（1） Principle

The JB series impact testing machine produced by our company is a product developed strictly in accordance with the national standard GB/T3808 "Inspection of Pendulum Impact Testing Machines". It conducts impact tests on metal materials in accordance with the national standard GB/T229 "Charpy Notch Impact Test Method for Metals" and conducts factory inspections in accordance with JJG145-82 "Pendulum Impact Testing Machines". The cross-section of the used pattern is 10 * 10mm. Mainly for testing black metals with high impact toughness, especially steel and its alloys.

The testing principle of this product is to display the difference between the potential energy before and after the impact of the pendulum on the dial, in order to obtain the absorption energy of the tested sample. 

（2） Product features

In terms of operation, semi-automatic control is adopted, which is easy to operate and has high work efficiency. The remaining energy after using the pendulum to break the sample can not only automatically swing, but also demonstrate its superiority in continuous impact testing of the sample.

The host adopts a reducer transmission method, replacing the old belt transmission method, which increases the stability and accuracy of the product. 

（3） Applicable industries

The JB series is widely used in testing, scientific research, and production in industries such as metrology, mechanical manufacturing, metallurgy, pressure vessels, and colleges and universities. 

（4） Main uses

Mainly for testing black metals with high impact toughness, especially steel and its alloys.

2、 Technical parameters

1. Impact energy: 300J, 150J 

2. Scale range and division value of the dial: 

3. Pendulum moment 

4. Pendulum pre lift angle: 150 ° 

5. Distance from the center of the pendulum to the impact point (test center): 750MM

6. Impact speed: 5.2M/s 

7. Sample support span: 40mm 

8. Arc radius at the end of the sample support: 1-1.5MM 

9. Angle of inclination of sample support surface: 0 ° 

10. Impact knife arc radius: 2-2.5MM 

11. Angle between the two slopes of the impact knife: 30 °

12. Impact blade thickness: 16MM 

13. Sample size: 10 * 10 * 55MM 

14. Testing machine weight: approximately 450KG 

15. External dimensions of testing machine: 2124 * 600 * 1340MM 

16. Power supply: three-phase four wire 50HZ 380V 180W (main motor)

3、 Standard configuration 

1、 Host: One unit.

1、 Pendulum: specifications, large pendulum 300J, small pendulum 150J. Quantity, one for each, a total of two.

2、 Span template: Specification, L=40. Quantity, one.

3、 Sample centering block: specification, L=40 (V.U) type. Quantity, one.

4、 Disassembler: quantity, one.

5、 Dumb handle: Specification, S=30. Quantity, one.

6、 Hexagonal wrench: specification, S=14. Quantity, one.

7、 Anchor bolt: specification, M16 × 300. Quantity, four sets.

Jaws (including brackets): quantity, one set. Note that it has been installed on the host. 

4、 Working conditions

a. Room temperature within the range of 10-35 º C;

b. The relative humidity shall not exceed 85%; 

c. In an environment without corrosive media around; 

d. Installed on a concrete foundation with a thickness of no less than 150mm or fixed on a foundation weighing over 880 kilograms; 

e. Adjust the levelness of the installation reference surface on the machine base to within 0.2/1000; 

5、 Quality assurance

The equipment warranty period is one year from the official delivery date. During the warranty period, the supplier provides timely and free maintenance services for various equipment malfunctions. Timely and free replacement of all types of parts damaged by non-human factors. If the equipment outside the warranty period malfunctions during use, the supplier actively assists the ordering party in completing maintenance tasks.