:: UNIVERSAL TESTING MACHINES-MODEL TUTE ::

UNIVERSAL TESTING MACHINES-MODEL TUTE

  • 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 materials
  • Motor driven threaded columns for quick effortless adjustment of lower cross head to facilitate rapid fixing of test specimen.
  • Large effective clearance between columns enables testing of standards specimens as well as structures.
  • Robust staining frame of an extremely rigid construction.
  • Simple controls for easy of operation.
  • Safe operation ensured is means of safety devices.

MACHINE EQUIPPED WITH

Straining Unit ::

   This consists of a hydraulic cylinder and power pack 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 crosshead is connected to two screwed columns, which are driven by a motor. Axial loading of the ram is ensured by the Provision of ball seating.
 
   An elongation scale with a minimum graduation is provided to measure the deformation of the specimen. Tension test is conducted by gripping the test specimen between the upper and lower crossheads, The lower crosshead can be raised or lowered rapidly by operating the screwed columns thus facilitating ease of fixing of the test specimen. Compression, transverse, bending, shear and hardness tests are conducted between the lower cross head and the table.

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.

 Control Panel ::

   The control Panel consists of a power pack complete with drive motor and an oil tank, control valves a pendulum dynamometer a load indicator system and an autographic recorder.
  
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 betaken.

Load Indicator System ::

  This system consists of a large dial and a pointer. A dummy pointer is provided to register the maximum load reached during the test. Different measuring ranges can be selected by operating the range selection knob. An overload trip switch is incorporated which automatically cuts out the pump Motor when the load range in use is exceeded.

Pendulum Dynamometer ::  

   This unit permits selection of favorable hydraulic ratios producing relatively small frictional forces. Pressurized oil in the loading cylinder pushes up the measuring piston proportionately and actuates the special dynamometer system. The piston is constantly rotated to eliminate friction. The dynamometer system is also provided with an integral damper and ensures high reliability of operation. The load transmitted to the dynamometer is transferred through a pendulum to the load indicator.
 
Autographic Continuous Roll Load-Elongation Recorder ::

   This unit is of the pen and drums type and is supplied as standard. The horizontal motion of the pen produces the load ordinate of the diagram and the drum rotation produces the extension ordinates the ratio of either 1:5 or 1:10. 

Accuracy & Calibration ::

  All Test well 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

   Test well Universal Testing Machines comply with Grade "A" of BS: 1610: Part 1:1992 and class 1 of IS 1828: (Part 1): 1991 and accuracy of + 1.0% is guaranteed from 20% of the load range selected to full load. Below 20% of the selected range, the maximum permissible error is 0.2% of the full load reading.

Application ::
  
   Test well 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 to a separately housed load indicator. The hydraulic 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 pendulum dynamometer system housed in the control panel. The cylinder of the dynamometer is also of self-lubricating design. The load transmitted to the cylinder of the dynamometer is transferred through a lever system to a pendulum. Displacement of the pendulum actuates the rack and pinion mechanism, which operates the load indicator pointer and the autographic recorder. The deflection of the pendulum represents the absolute load applied on the test specimen.

  Return movement of the pendulum is effectively damped to absorb energy in the event of sudden breakage of a specimen.

Machine Consists of ::
 
Straining Unit
  
   This consists of a hydraulic 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 crosshead is connected to two screwed columns, which are driven by a motor. Axial loading of the ram is ensured be reveling the cylinder and ram of any possible side loading by the provision of ball seating. An elongation 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 crossheads, Compression; transverse, bending, shear and hardness tests are conducted between the lower crosshead and the table.
 
   The lower crosshead 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 a pendulum dynamometer a load indicator system and an autographic recorder. 

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.

Load Indicator System ::
   
   This system consists of a large dial and a pointer. A dummy pointer is provided to register the maximum load reached during the test. Different measuring ranges can be selected by operating the range selection knob. An overload trip switch is incorporated which automatically cuts out the pump motor when the load range in use is exceeded.

Pendulum Dynamometer ::
   
   This unit permits selection of favorable hydraulic ratios producing relatively small frictional forces. Pressurized oil in the loading cylinder pushes up the measuring piston proportionately and actuates the special dynamometer system. The piston is constantly rotated to eliminate friction. The dynamometer system is also provided with an integral damper and ensures high reliability of operation. The load transmitted to the dynamometer is transferred through a Pendulum to the load indicator.

TOP


SPECIFICATIONS
aa
Model
-
TUT-10
TUT-20
TUT-40
TUT-60
TUT-100
TUT-200
TUT-300
a a a a a a a a a
Maximum capacity
kN
100
200
400
600
1000
2000
3000
a a
a
a
a
a
a
a
a
1st Measuring Range
kN
0-100
0-200
0-400
0-600
0-1000
0-2000
0-3000
a a
a
a
a
a
a
a
a
Minimum Graduations
kN
0.2
0.4
1
1
2
4
5
a a
a
a
a
a
a
a
a
2nd Measuring Range
kN
0.50
0-100
0-200
0-300
0-500
0-1000
0-1500
a
a
a
a
a
a
a
a
a
Minimum Graduations
kN
0.1
0.2
0.5
0.5
1
2
2.5
a
a
a
a
a
a
a
a
a
3rd Measuring Range
kN
0.25
0-50
0-100
0-120
0-250
0-500
0-600
a
a
a
a
a
a
a
a
a
Minimum Graduations
kN
0.05
0.1
0.25
0.2
0.5
1
1
a
a
a
a
a
a
a
a
a
4th Measuring Range
kN
0.10
0-20
0-40
0-60
0-100
0-200
0-300
a
a
a
a
a
a
a
a
a
Minimum Graduation
kN
0.02
0.04
0.1
0.1
0.2
0.4
0.5
a aa
a
a
a
a
a
a
a
Clearance for tensile at fully
descended working piston
mm
50-700
50-700
50-700
50-800
50-850
50-900
50-900
aa aa
a
a
a
a
a
a
a
Clearance for compression test at
fully descended working piston
mm
0-700
0-700
0-700
0-800
0-850
0-900
0-900
a a
a
a
a
a
a
a
a
Clearance between columns
mm
500
500
500

600
750
850
850
a a
a
a
a
a
a
a
a
Ram stroke
mm
150
200
200
250
250
300
300
a a
a
a
a
a
a
a
a
Straining / piston speeds ( at no load )
mm/min
0-300
0-150
0-150
0-100
0-80
0-45
0-50
a a
a
a
a
a
a
a
a
Connected Load
-
-
-
-
-
-
-
-
a a
a
a
a
a
a
a
a
HP
-
1.3
1.3
2.3
2.5
3.5
6.5
8.5
a a
a
a
a
a
a
a
a
V
-
400-440
400-440
400-440
400-440
400-440
400-440
400-440
a a
a
a
a
a
a
a
a
Ø
-
3
3
3
3
3
3
3
a a
a
a
a
a
a
a
a
DIMENSIONS
-
-
-
-
-
-
-
-
a aa
a
a
a
a
a
a
a
L X W X H ( approx. )
mm
2032 x
750 x
1960 x
2032 x
750 x
1960 x
2060 x
750 x
2180 x
2065 x
750 x
2534 x
2415 x
815 x
2900 x
3000 x
1200 x
3600 x
3500 x
1900 x
4550 x
a a
a
a
a
a
a
a
a
Weight approx.
kg
1500
1500
2500
5500
3500
12 500
22 000
a a
a
a
a
a
a
a
a
STANDARD ACCESSORIES
-
-
-
-
-
-
-
-
a a
a
a
a
a
a
a
a
FOR TENSION TEST
-
-
-
-
-
-
-
-
a a
a
a
a
a
a
a
a
Clampings jaws for flat 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
20-60
60-80
25-50
50-70
70-90
a a
a
a
a
a
a
a
a
Clampings 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
a
a
a
a
a
a
a
a
a
FOE COMPRESSION TEST
mm
-
-
-
-
-
-
-
a
a
a
a
a
a
a
a
a
Pair of compression plates of diameter
mm
120
120
120
120
160
220
220
a
a
a
a
a
a
a
a
a
FOR TRANSVERSE TEST
mm
-
-
-
-
-
-
-
a
a
a
a
a
a
a
a
a
Table with adjustable rollers
width of rollers
mm
160
160
160
160
160
200
200
a
a
a
a
a
a
a
a
a
Diameter of rollers
mm
30
30
30
50
50
70
70
a
a
a
a
a
a
a
a
a
Maximum clearance between supports
mm
500
500
500
600
800
900
1000
a
a
a
a
a
a
a
a
a
Radius of punch tops
mm
6,12
6,12
12,16
16,22
16,22
30,40
50,75
a a
a
a
a
a
a
a
a

Special Accesories ::
These include load stabilizer, Brinell test Attachment, Bend Test Attachment, Shear Test Attachment and a wide range accessories offered on request at additional cost.

Installation ::
It is recommended that machines be erected on a foundation. Details on foundation can be given on request