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Electronic Universal Testing Machines - Model : UTE
Here UTM Right Control Valve is Servo Controlled in close loop mode as per mode selection. Following control modes available :
Also Auto Start, Potentiometric start & Initial Valve open start options are available for test to take care of slippage & different specimen types.
Load is applied by hydrostatically lubricated ram. Main cylinder pressure is transmitted to the pressure transducer housed in the control panel. The transducer gives the signal to the electronic display unit, corresponding to the load exerted by the main ram. Simulteniously the digital encoder fitted on the straining unit gives the mechanical displacement.
This consists of a cylinder motor with chain and sprocket drive and a table coupled with the ram of the hydraulic cylinder, mounted on to a robust base. The cylinder and the ram are individually lapped to eliminate friction. The upper cross-head is rigidly fixed to the table by two strenthened columns.
The lower cross-head is connected to two screwed columns which are driven by a motor. Axial loading of the ram is ensured by relieving the cylinder and ram of any possible side loading by the provision of ball seating.
An displacement scale with a minimum graduation of 1mm, is provided to measure the deformation of the specimen.
Tension test is conducted by gripping the test specimen between the upper and lower cross-heads.
Compression, transverse , bending, shear & hardness tests are conducted between the lower cross-head and the table.
The lower cross-head can be raised or lowered rapidly by operating the screwed columns, thus facilitating ease of fixing of the test specimen.
The control Panel consists of a power pack complete with drive motor and an oil tank, control valves and electronic display unit.
The power pack generates the maximum pressure of 200 kgf/cm2. The hydraulic pump provides continuously non-pulsating oil flow. Hence the load application is very smooth.
Hand operated Release Valve & motorised control valve are used to control the flow to and from the hydraulic cylinder. The regulation of the oil flow is infinitely variable. Incorporated in the hydraulic system is a regulating valve, which maintains a practically constant rate of piston movement. Control by this valve allows extensometer reading to be taken.
Windows based basic software for Servo Control is in standard scope of supply.
All FIE Electronic Universal Testing Machines are closely controlled for sensitivity, accuracy and calibration during every stage of manufacture. Every machine is then calibrated over each of its measuring ranges in accordance with the procedure laid down in British standards.1610 : Part 1 : 1992 and IS : 1828 : Part 1 : 1991.
Fie Electronic Universal Testing Machine comply with Grade "A" of BS : 1610 : Part 1 : 1992 and class 1 of IS - 1828-Part 1:1991. An accuracy of + 1% is guaranted from 2% to 100% of the capacity of the machine.
Below 20% of the selected range , the maximum permissible error is 0.2% of the full load reading.
|Load Resolution (20,000 counts full scale)||N||5||10||20||30||50|
|Load Range with Accuracy of measurement ± 1.0%||kN||2 to100||4 to 200||8 to 400||12 to 600||20 to 1000|
|Resolution of piston movement (Displacement)||mm||0.01||0.01||0.01||0.01||0.01|
|Clearance for tensile at fully descended working piston.||mm||50-700||50-700||50-700||50-800||50-850|
|Clearance for compression test at fully descended working piston.||mm||0-700||0-700||0-700||0-800||0-850|
|Clearance between columns.||mm||500||500||500||600||750|
|Straining/piston speed (at no load)||mm/min||0-300||0-150||0-150||0-100||0-80|
|L x W x H ( approx. )||mm||2032 x
|For Tension Test|
|• Clamping jaws for round specimens of Diameters.||mm||10-20
|• Clamping jaws for flat specimens of thickness.||mm||0 - 10
10 - 20
|0 - 10
10 - 20
|0 - 15
15 - 30
|0 - 15
15 - 30
|0 - 22
22 - 44
44 - 65
|For Compression Test|
|Pair of compression plates of dia.||mm||120||120||120||120||160|
|For Transverse Test|
|Table with adjustable rollers width of rollers.||mm||160||160||160||160||160|
|Diameter of Rollers||mm||30||30||30||50||50|
|Maximum clearance between supports||mm||500||500||500||600||800|
|Radius of punch tops.||mm||6, 12||6, 12||12, 16||16, 22||16, 22|
Attachment for Tension Test for shouldered and threaded specimens
Attachment for Tension Test for Wire Ropes