Drop Weight Impact Testing Machine

Model: DWTT Series
Description:
DWTT Drop Weight Impact Testing System is suitable for drop weight tear test of various kinds of ferrite, especially for the test of DWTT for pipeline steel as ASTM-E 436, API-RP 5L3, ASTM-E 208 and DIN EN 10274. DWTT has integrated mechanical, electrical, and automatic control technology, and achieved full automation of feeding, hammer lifting impact, and fracture specimen collection. The load frame has a four-column design, features in stable supporting structure, rigid, dual sliding rails. The Drop Weight Drop Weight Tester is equipped with positioning mechanism, anti-dumping mechanism, safety mechanism, hydraulic buffer devices and security guard net. The impact energy is determined by the lifting height and configuration of different net weights.
DWTT Drop Weight Impact Testing System is the essential quality control equipment for pipeline manufacturers, steel mills, iron and steel enterprises, and is also widely used for research institutes.
1. Buffer device is equipped to avoid the second impact and absorb the residual energy after breaking the specimen so as to prevent the weigher and anvil from destroying. The installation of safety mechanism, buffer device, and security guard net will effectively secure the testing machine and its operation to extend its life.
2. Configuration of the specimen-feeding system, anti-second impact device, and specimen centering mechanism will guarantee a quick, accurate and reliable test.

  • Application: 

    DWTI series drop weight impact testing machine is suitable for conducting drop-weight test to detect the anti-impact performance of special products, like metal, pipes, boots, plastics and any other materials. 

    Non-instrumented tester can only test the performance of faulty or not. With instrumented system, it can be obtained the detailed impact procedure as the curve of Force-Time, Energy-Time, Force-Displacement, Energy-Displacement, and speed etc..

    It is widely used in factories, plastics, engineering, universities, R&D etc..


    Applied standards:

    • ASTM E208, GB6803

    • ASTM D256(Izod), D6110 (Charpy), D950, D1822, D2444, D5420, D3763, D4508, D4812, D5628, E23(Izod, Charpy), E208, E436, E604.

    • ISO179 (Chapry), ISO180 (Izod), 148 (Charpy), 7765-2, 6603-1, 6603-2, 179-2, 3127.

    • Others: DIN 53453, DIN51222, Boeing 7260, GM9300P, GM9904P, GM4349M, EN10045, JIS K7111(Charpy), NASA STI, API-SL3, Ford ESBM16J14-A, Blat 1-2, NFT51-118, UNI7448.

    • Customer’s special requirement especially for the structured instrumented test.

  • ModelDWTT- 20000DWTT- 30000DWTT- 40000DWTT- 50000DWTT- 80000DWTT- 100000
    Max. Energy (J)2000030000400005000080000100000
    Max. Lifting (mm)300028002500200030003000
    Max. Impact Velocity (m/s)7.67.4777.57.5
    Curvature Radius of Weight (mm)R25R25R25.4±2.5R25R25R25
    Curvature Radius of Anvil (mm)R25R25R14.3±1.59R15.5R15R15.5
    Hardness of Weight and Anvil≥HRC58≥HRC58HRC58-65HRC58-65HRC58-65HRC58-65
    Distance between Supports (mm)254254254254254254
    Centering Deviation of Specimen   (mm)≤±1≤±1≤±1≤±1≤±1≤±1
    Indicating Deviation of Lifting   (mm)≤±1≤±1≤±1≤±1≤±1≤±1
    of the Load Frame (mm)550055005700570068007000
    Weight (kg)560056009500178001800024000


    ModelDWTI 300DWTT 750/1000DWTI 1500/2000DWI-400
    Max. energy (J)300750/10001500/2000400
    Max. lifting height (mm)1000160020002000
    Max. impact velocity (m/s)4.4±0.2m5.56/
    Hammer mass range (kg)20.0065.002.00-70.000.25-16
    Support column spacing: transverse×depth (mm)590×490/
    Hardness of anvil & hammerHRC50~HRC60/


    TE can supply with customized special design to meet various kinds of testing requirements