JB-300B-type impact testing machine is used for measuring the metal material resistance performance under dynamic load, in order to determine the material properties under dynamic load. Model JB-300B tester is developed strictly according to GB/T3808-2002model swinging hammer impact tester international standard .It does impact test to mental material according to GB/T229-1994 impact test method of mental gap The maximum impact energy is 300 Joule with a hammer of 150 Joule .Dimension of breaking surface of the sample is 10*10mm. It mainly does test to black metal, especially to steel and its alloy.

The product theory is to present the difference of energy before impacting and after impacting on the degree set, through which we can gain the absorbed skill. The advantage of it could be presented better in the sample test.

Main specification

1. impact energy : 300J,150J 2. graduation scope and cent degree value of the degree set

3. Pendulum force value (the impact of constants): 0-300J M = 160.7695N.m 0-150J M = 80.3848N.m 4. Angel of the pendulum raise in advance: 150 ° 5. The distance between the pendulum shaft rotation center and the impact point (specimen center) distance: 750mm 6. Impact speed: 5.2m / s 7. Specimen support span: 40mm 8. Gag round angel: R1-1.5mm 9. Arc circle radius of impact knife: R2-2.5mm 10. Sample specifications: 55 × 10 × 10mm 11. Testing machine net weight: 450kg 12. Testing machine dimension: 2124 × 600 × 1340mm 13. Power Supply: Three-phase four-wire 50Hz, 380V, 180W (main motor)

Device configuration 1, Host: One. 2, Bob: specification, large pendulum 300J, a small place 150J. Quantity, each one, the total of two.

3, Span model: specification, L = 40. One. 4, The specimen on the block: specifications, L = 40 (VU) type. One.

5, Hexagonal wrench: Specification, S = 12. One. 6, Screw angle: Four. 7, Shut up (including bracket): the number of a pair have been installed in the host. 8, Electronic control box: One has been installed in the host. 9, Security protection system: One.