Increase in the demands of high operating pressures of line-pipes and larger diameters, further increase the demands of high strength steels. This drives “PRAGYA“ for the development of higher strength Drop Weight Tear Tester (DWTT) in the year 1999 that delivers for the maximum energy level of 30,000 Joules. The Drop Weight Tear Testers measure the fracture characteristics and ductility of steel specimens according to ASTM-E436, API-RP5L3, ASTM-E208 and DIN EN 10274 standards. Excellent results are committed with fully automatic PLC controlled DWTT with Hydraulic Shock Absorbers for drop weight tear testing of “Specimen“ according to the standards ASTM-E436, API-RP5L3, ASTM-E208 and DIN EN 10274.
We offer, three different automatic PLC controlled DWTTs :
These maintenance free DWTT machines are highly robust in construction yet smooth in operation. Moreover, the machines are supplied with optional auxiliary equipments like Hydraulic Notch Making Press and Deep Freezer to cool the specimen up to minus-(-) 80Â°C. Various precautions are taken while manufacturing the machines and these are flexible enough to cater almost all the required test applications. The easy to use control software ensures consistency with quality output.
Salient Features :
as mentioned above, we have taken care of every aspect and employed all the requisite features that covers the safety issue of our machines. Some of them are as follows :
|Model||PRTT-30000 J||PRTT-55000 J||PRTT-80000 J|
|Maximum Impact Energy (J)||30000||55000||80000|
|Minimum Impact Energy (J)||6500||7000||15000|
|Maximum Height (mm)||3100||4000||5100|
|Maximum Plate Thickness (mm)||38||50||50|
|Raising Height Accuracy (mm)||±5||±5||±5|
|Maximum Strike Weight (kg)||1000||1400||1600|
|Strike Weight Accuracy (%)||±1||±1||±1|
|Striker Velocity (m/sec)||3.0 to 7.0||4.0 to 9.0||4.0 to 9.0|
|Specimen Alignment Accuracy (mm)||±1||±1||±1|
|Base Size L x W x H (mm)||1250x1250x1250||1300x1300x200||1500x1500x200|
Besides, this “PRAGYA“ is also engaged in manufacturing and export of Terminal, Handling, and Testing equipments for SAW/SPIRAL pipe plants and CR/HR steel mills since last 17 years.
Our other equipments are as follow :