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Universal Testing Machines
Computer Controlled UTM's
Hardness Testers
Impact Testing Machines
SERVO Hydraulic Machines
Rubber & Plastic Testing Machines
Metallography
Laboratory Equipments
Machine Tools & SPM's
Other Testing Machines
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UNIVERSAL TESTING MACHINES (Analogue,
Electronic , Computerised) |
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| UNIVERSAL
TESTING MACHINES-MODEL UTE (Electronic) |
•
Loading Accuracy as high as + 1%
• Straining at variable speeds to suit a wide range of materials.
• Printer supplied as option to enable study the behavior of the material
• Motor driven threaded columns for quick effortless adjustment of lower
cross-head-to facilitate rapid fixing of test specimen.
• Simplicity in reading because of digital readouts.
• Wide range of standard and special accessories, including load stabilizer.
• Easy change from plain to threaded and screwed specimens.
• Large effective clearance between columns enables testing of standards
specimens as well as structures.
• Simple controls for easy of operation.
• Robust staining frame of an extremely rigid construction.
• Safe operation ensured be means of safety devices.
• Fully enclosed and protected pendulum.
• Optional serial port to transfer data to computer for analysis /storage etc. |
Application :
Universal Testing Machine is designed for testing metals and other
materials under tension, compression bending, transverse and shear loads.
Hardness test on metals can also be conducted.
Principal of Operation :
Operation of the machines is by hydraulic transmission of load from the
test specimen through pressure transducer to a separately housed load
indicator. The system is ideal since it replaces transmission of load
through levers and knife edges, which are prone to wear and damage due to
shock on rupture of test pieces.
Load is applied by a hydrostatically lubricated ram. Main cylinder pressure
is transmitted to the cylinder of the pressure transducer housed in the
control panel. The transducer gives the signal to the electronic display
unit corresponding the load exerted by the main ram. Simultaneously the
digital electronic fitted on the straining unit gives the mechanical
displacement to the electronic display unit. Both the signals are processed
by the microprocessor and load and displacement is displayed on the digital
readouts simultaneously.
Machine consists of :
Straining Unit
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
strengthened columns. The lower cross-head is connected to two screwed
columns which are driven by a motor. Axial loading of the ram of any
possible side loading by the provision of ball seatings.
An displacement scale with a minimum graduation of 1 mm, 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 and 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.
Control Panel :
The control Panel consists of a power pack complete with drive motor and
an oil tank, control valves and electronic display unit.
Power Pack :
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.
Hydraulic Controls :
Hand operates wheels are used to control the flow to and from the
hydraulic cylinder. The regulation of 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 readings to be taken.
Electronic Control Panel :
The electronic control panel
incorporates state of the art technology with following features.
• Front panel membrane type key board for test setup.
• 7 seg digital display of load displacement / extension.
• Printer port interface.
• Serial port for communication with PC.
• Optional add-on facility for electronic extensometers & electronic
load pacer.
• Storage of important parameters such as peak load, displacement at
peak load & maximum displacement after test.
• Preload selections to take care of initial slippage.
Serial Communication & Software package on PC
The control panel can be hooked to any PC using RS-232
communication port. GATHA offers different exhaustive application, Window
based software packages on PC to enable the user to effectively evaluate
different parameters. The features include.
• User friendly main menu with pop up menus, prompt message and help
windows.
• Extensive graphics on screen for curve plotting, magnification and
zooming.
• Evaluation of wide range of user selectable parameters such as
young's modulus, yield stress, proof stress etc.
• Advanced file handling for data storage, printout option for
reports data and graph etc.
• Optional software package for statistical evaluation.
• Custom built application software to suit customer requirements.
Accuracy & Calibration :
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 BS : 1610 : Part 1 :1992 and IS
1828 : (Part 1) : 1991.
Universal Testing Machines comply with Grade "A" of BS : 1610 : Part 1:1992
and class 1 of IS 1828 : (Part1) : 1991
An accuracy of + 1.0% is guaranteed 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. |
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SPECIFICATION : |
|
MODEL |
- |
UTE-10 |
UTE-20 |
UTE-40 |
UTE-60 |
UTE-100 |
UTE-200 |
UTE-300 |
|
Maximum capacity |
kN |
100 |
200 |
400 |
600 |
1000 |
2000 |
3000 |
|
Measuring Range |
kN |
0-100 |
0-200 |
0-400 |
0-600 |
0-1000 |
0-2000 |
0-3000 |
Load Resolution
( 20,000 counts full scale ) |
N |
10 |
20 |
40 |
60 |
100 |
200 |
300 |
Load Range with accuracy of
measurement + 1.0% |
kN |
2 to 100 |
4 to 200 |
8 to 400 |
12 to 600 |
20 to 1000 |
40 to 2000 |
60 to 3000 |
Resolution of piston
movement ( Displacement ) |
mm |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
|
Clearance for tensile at fully
descended working piston |
mm |
50-700 |
50-700 |
50-700 |
50-800 |
50-850 |
50-900 |
50-900 |
|
Clearance for compression test at
fully descended working piston |
mm |
0-700 |
0-700 |
0-700 |
0-800 |
0-850 |
0-900 |
0-900 |
|
Clearance between columns |
mm |
500 |
500 |
500 |
600 |
750 |
850 |
850 |
|
Ram stroke |
mm |
150 |
200 |
200 |
250 |
250 |
300 |
300 |
|
Straining/piston speeds (at no load) |
mm/min |
0-300 |
0-150 |
0-150 |
0-100 |
0-80 |
0-45 |
0-50 |
|
CONNECTED LOAD |
- |
- |
- |
- |
- |
- |
- |
- |
|
Power |
-kW |
1.0 |
1.0 |
1.7 |
1.9 |
2.6 |
4.9 |
6.4 |
|
V |
- |
400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
|
Æ |
- |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
|
DIMENSIONS |
- |
- |
- |
- |
- |
- |
- |
- |
|
L X W X H (approx.) |
mm |
2032 x
750 x
1960 |
2032 x
750 x
1960 |
2060 x
750 x
2180 |
2265 x
750 x
2534 |
2415 x
815 x
2900 |
3000 x
1200 x
3600 |
3500 x
1900 x
4550 |
|
Weight approx. |
kg |
1500 |
1500 |
2500 |
3500 |
5500 |
9500 |
15000 |
|
STANDARD ACCESSORIES |
- |
- |
- |
- |
- |
- |
- |
- |
|
FOR TENSION TEST |
- |
- |
- |
- |
- |
- |
- |
- |
|
Clamping jaws for round specimens
diameter |
mm |
10-20
20-30 |
10-20
20-30 |
10-25
25-40 |
10-25
25-40
40-55 |
10-25
25-45
45-70 |
20-40
40-60
60-80 |
25-50
50-70
70-90 |
Clamping jaws for flat specimens
thickness
width |
mm |
0-10
10-20
50 |
0-10
10-20
50 |
0-15
15-30
65 |
0-15
15-30
70 |
0-22
22-44
44-65
70 |
0-20
20-45
45-70
90 |
0-25
25-50
50-75
100 |
|
FOE COMPRESSION TEST |
mm |
- |
- |
- |
- |
- |
- |
- |
|
Pair of compression plates of diameter |
mm |
120 |
120 |
120 |
120 |
160 |
220 |
220 |
|
FOR TRANSVERSE TEST |
mm |
- |
- |
- |
- |
- |
- |
- |
|
Table with adjustable rollers width of
rollers |
mm |
160 |
160 |
160 |
160 |
160 |
200 |
200 |
|
Diameter of rollers |
mm |
30 |
30 |
30 |
50 |
50 |
70 |
70 |
|
Maximum clearance between supports |
mm |
500 |
500 |
500 |
600 |
800 |
900 |
1000 |
|
Radius of punch tops |
mm |
6,12 |
6,12 |
12, 16 |
16, 22 |
16, 22 |
30, 40 |
50, 75 |
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| SPECIAL ACCESSORIES &
OPTIONS : |
|
| • Load Stabilizer
|
• Shear test attachment |
| • Load full scale of
20.000 or 50.000 counts |
• Printer |
| • Serial communication
port with software package |
• Piston movement
resolution of 0.01 mm |
| • Plotter |
• Mechanical
extensometer |
| • Electronic Load Pacer |
• Brinell Test
attachment |
| • Electronic
extensometer |
• Option for kgf/kN unit
selection. |
|
• Wide range
accessories offered on request at additional cost.
• Due to constant R & D specification and features are subject to change
without notice.
• The dimensions given above are approximate. |
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