Drop weight testing machine DWTT-30000J

PC-controllableautomaticfor building materials

Model:DWTT-30000J Digital Display Drop Weight Tear Test Machine Application: DWTT series digital display drop weight tear test machine can be used for the drop weight tear test (DWTT) of steel pipes under 40mm or ferritic steel, bainitic steel and duplex steel with thickness 3~40mm. Standards: According to the standard: GB/T8363-2007 "Ferritic steel drop weight tear test method". Reference standard: (1) API5L3 American Petroleum Institute recommended method; (2) ASTM E436-80 Standard method for drop weight dynamic tear test of ferritic steel; (3) ASTM E604-83 Standard method for dynamic tearing of metallic materials. (4)EN 10274 European Standard that specifies the drop weight tear test for metallic materials Specifications: 1) Maximum impact energy:30000J 2) Host installation height:≤5.5m 3) Lifting height of drop hammer:2500mm 4) Impact speed:≥7m/s 5) Total mass error of falling weight:≤1% 6) Mass error of counter weight:≤±0.5% 7) Rockwell hardness of hammer blade and support jaw bearing surface:＞HRC56 8) The radius of curvature of the falling hammer blade:R25.4±2.5mm 9) Radius of curvature of support jaws:R14.3±1.59mm 10) Support span:254+1.5mm 11) The deviation between the center line of the drop hammer blade and the center of the support span is:±1.5mm 12) The deviation between the sample centering device and the center line of the sample notch:≤ 1.5 mm 13) The deviation of the lifting height of the falling weight from the standard value:≤ 1.5 mm 14) Specimen specification:305×76×(3~40)mm or steel pipe 15) External dimensions of testing machine:1600×2300×5500mm 16) Motor power:4kw