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UNIVERSAL TESTING MACHINES :- Mechanical
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Loading accuracy as high as +1%
Straining at variable speeds to suit a wide
Range of materials.
Continuous roll autographic recorder
Supplied as standard to enable study of
The behavior of material.
Continuous roll autographic recorder
Supplied as standard to enable study of The behavior of material
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Universal Testing Machines
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Motor driven threaded columns for quick
Effortless adjustment of lower crosshead
To facilitate rapid fixing of test specimen. |
Simple controls for ease of operation. |
High reading accuracy due to large size
And design of dial. |
Fully enclosed & protected pendum |
Wide range of standard and special Accessories, including load stabilizer |
Safe operation ensured by means of Safety devices |
Large effective clearance between
Columns enables testing of standard Specimens as well as structures |
Robust Straining frame of an extremely Rigid construction |
Easy change from plain to threaded and Screwed specimens. |
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| APPLICATION: |
Universal Testing Machine is
Designed to perform tensile,compression,
Bending and shear tests on metal & other
Materials, both in the form of test pieces And as finished products
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| PRINCIPLE OF OPERATION |
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Operation of the machine is by hydraulic
Transmission of load from test specimen to a
Separately housed load indicator. The hydraulic
Is ideal since it replaces transmission of load
Through levers & knife edges, which are prone
To wear & damage due to shock on rupture
Of test pieces. Load is applied by a hydrostatically
Lubricated ram. The oil pressure in the
Main cylinder is transmitted to the cylinder
Of the control panel, the dynamometer housed in
The control panel, the dynamometer piston
Exerts a force proportionate to the
Hydraulic pressure. This force is transferred
Through a leverage system to a
Pendulum.
Displacement of pendulum actuates the
Rack and pinion mechanism which
Operates the load indication pointer. Return movement of pendulum is effectively damped to absorb energy in the
Event of sudden breakage of specimen.
Machine comprises of the following |
| STRAINING UNIT |
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This consists of a hydraulic cylinder &
Piston mounted on a robust base. The
Loading frame consists of an upper
Crosshead, middle crosshead and lower
Table
The cylinder and ram is individually
Lapped to eliminate friction. Axial loading
Of the system is ensured by relieving the
Cylinder & ram of any possible side loading
By provision of ball seatings.
An elongation scale with least
Count of 1mm is provided for
Measurement of deformation of various
Samples.
Tensile test is conducted by gripping the
Test specimen between the upper and
Middle crosshead.
Compression, Transverse, Bending
Shear and hardness tests are conducted
Between the middle crosshead and the
Lower table |
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| CONTROL PANEL |
The power pack generates the maximum
Pressure of 200 kgf/cm2. The hydraulic pump
Provides continuously non-pulsating oil flow. Hens the load application is very smooth |
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HYDRAULIC SYSTEM |
Hand operated wheels are used to
Control the flow and from the hydraulic
Cylinder. The regulation of oil flow is infinitely
Variable. Incorporated in the hydraulic system
Is a regulation valve, which maintains a
Practically constant rate of piston movement.
Control by this valve allows extensometer Reading to be taken |
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| PENDULUM DYNAMOMETER |
The oil pressure in the main cylinder
Actuates the special dynamometer
System. Pressured oil in the loading
Cylinder pushes up the measuring piston
Proportionately and deflects the
Pendulum. The piston is constantly
Rotated to eliminate friction.
The
System has effective damping
Arrangement to ensure smooth return of
Pendulum after sudden breakage of test
Piece. This unit permits selection of
Favorable hydraulic ratios producing Relatively small frictional forces |
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| PENDULUM DYNAMOMETER: |
The oil pressure in the main cylinder
Actuates the special dynamometer
System. Pressured oil in the loading
Cylinder pushes up the measuring piston
Proportionately and deflects the
Pendulum. The piston is constantly
Rotated to eliminate friction.
The
System has effective damping
Arrangement to ensure smooth return of
Pendulum after sudden breakage of test
Piece. This unit permits selection of
Favorable hydraulic ratios producing Relatively small frictional forces
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| LOAD INDICAIONG SYSTEM: |
This system consists of a large dial
And a pointer. Displacement of pendulum
Actuates the rack and pinion mechanism
Which operates the load indicating
Pointer. The pointer moves over a large
Dial indicating the load. A dummy pointer
Is provided to register the maximum load
Reached during the test. Window type dial
Is provided for easy and clear changing of
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AUTOGRAPHIC CONTINUOUS ROLL
LOAD-ELONGATION RECORDER:
A continuous roll ( A strip chart) type
Load-elongation graph. Horizontal
Movement of the rack produces load
Ordinate of diagram and drum rotation
To elongation ordinate, in the ratio of
Either 1:5 or 1:10
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Compression Test (Standard) |
Attachment For Tension Test for Shouldered & Thereaded Specimens |
Tension Test |
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Transverse Test (Standard) |
Calibration of Machine with
Proving Ring |
Shear Test |
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Attachment For Tension Test for wire Ropes |
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| SPECIFICATIONS |
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| MODEL |
UNIT |
UTM-10 |
UTM-20 |
UTM-40 |
UTM-60 |
UTM-100 |
UTM-200 |
UTM-300 |
Maximum Capacity |
KN |
100 |
200 |
400 |
600 |
1000 |
2000 |
3000 |
1st measuring range |
KN |
0-100 |
0-200 |
0-400 |
0-600 |
0-1000 |
0-2000 |
0-3000 |
Minimum graduations |
KN |
0.2 |
0.4 |
1 |
1 |
2 |
4 |
5 |
2 nd Measuring range |
KN |
0-50 |
0-100 |
0-200 |
0-300 |
0-500 |
0-1000 |
0-2000 |
Minimum Graduations |
KN |
0.1 |
0.2 |
0.5 |
0.5 |
1 |
2 |
2.5 |
3 rd Measuring Range |
KN |
0-25 |
0-50 |
0-100 |
0-120 |
0-250 |
0-500 |
0-600 |
Minimum graduations |
KN |
0.05 |
0.1 |
0.25 |
0.2 |
0.5 |
1 |
1 |
4 th measuring Range |
KN |
0-10 |
0-20 |
0-40 |
0-60 |
0-100 |
0-200 |
0-300 |
Minimum graduations |
KN |
0.02 |
0.04 |
0.1 |
0.1 |
0.2 |
0.4 |
0.5 |
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@fully descended working piston |
Mm |
0-700 |
0-700 |
0-700 |
0-800 |
0-850 |
0-900 |
0-900 |
Clearance bet columns |
Mm |
500 |
500 |
500 |
600 |
750 |
850 |
850 |
Ram Stroke |
Mm |
150 |
200 |
200 |
250 |
250 |
300 |
300 |
Straining/Piston speeds @ no load |
Mm/min |
0-300 |
0-150 |
0-150 |
0-100 |
0-80 |
0-45 |
0-50 |
CONNECTED LOAD |
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HP |
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1.3 |
1.3 |
2.3 |
2.5 |
3.5 |
6.5 |
8.5 |
V |
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400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
400-440 |
PHASE |
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3 |
3 |
3 |
3 |
3 |
3 |
3 |
DIMENSIONS |
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LXWXH( Approx) |
mm |
2032x750
x1960 |
2032x750
x1960 |
2060x750
x2180 |
2265x750
x2534 |
2415x815
x2900 |
3000x1200
x3600 |
3500x1900
x4550 |
Weight approx |
Kg |
1500 |
1500 |
2500 |
3500 |
5500 |
12500 |
22000 |
STD ACCESSORIES |
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FOR TENSION TEST |
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Clamping jaws for round specimen |
Mm |
10-20
20-30 |
10-20
20-30 |
10-25
25-40 |
10-25
25-40
40-45 |
10-25
25-45
45-70 |
20-40
40-60
60-80 |
25-50
50-70
70-90 |
Clamping jawa for flat specimens thick |
Mm |
0-10
10-20 |
0-10
10-20 |
0-15
15-30 |
0-15
15-30 |
0-22
22-44
44-65 |
0-20
20-45
45-70 |
0-25
25-50
50-75 |
WIDTH |
Mm |
50 |
50 |
65 |
70 |
70 |
90 |
100 |
FOR COMPRESSION TEST |
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Pair of compression plates of dia
For Transverse Test |
Mm |
120 |
120 |
120 |
120 |
160 |
220 |
220 |
Table with adjustable rollers. Width of rollers |
Mm |
160 |
160 |
160 |
160 |
160 |
200 |
200 |
Dia of rollers |
Mm |
30 |
30 |
30 |
50 |
50 |
70 |
70 |
Max. Clearance bet 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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