Universal Testing Machine

Universal Tensile Testing Machine - Model - M UTM

Universal Tensile Testing Machine - Model - M UTE/PC

Features
  • Loading accuracy as high as +- 4% at 20%
  • Straining graph roll autographic recorder supplied as standard to enable study of the behaviors of materials.
  • Motor driven threaded columns for quick effortless adjustment of lower Cross head to facilitate rapid fixing of test specimen.
  • High reading accuracy due to large size and design of dial.
  • Wide rang 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 standard specimens as well as structures.
  • Simple controls for ease of operation. Robust straining frame of an extremely rigid construction.
  • Safe operation ensured by means of safety devices.
  • Fully enclosed and protected pendulum.

Applications

Couplon Universal Testing Machine is designed for testing metals and other materials under tension, compression bending, transverse and shear test. Hardness test on metals can also be conducted.

Accuracy and Calibration

All Couplon Universal Testing Machines are closely tested 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 : 1975. Couplon Universal Testing Machines Compile with grade "A" of BS : 1610: 1964 and grade 1.0 of IS -1828 -1975

An accuracy of +- 4% is guaranteed from 20 % of the load range selected to full load. Bellow 20 % of selected range, the maximum permissible error is 0.2 % of the full reading.


Specification

MODEL
M-UTM-10
M-UTM-20
M-UTM-40
M-UTM-60
M-UTM-100
Maximum capacity (tonne) 10 20 40 60 100
1st Measuring Range (tonne) 0-1 0-2 0-4 0-6 0-10
Minimum graduations (kgf) 2 4 10 10 20
2 nd Measuring Range (tonne) 0-25 0-5 0-10 0-12 0-25
Minimum Graduation (kgf) 5 10 25 20 50
3rd Measuring Range (tonne) 0-5 0-10 0-20 0-30 0-50
Minimum Graduation (kgf) 10 20 50 50 100
4th Measuring Range (tonne) 0-10 0-20 0-40 0-60 0-100
Minimum Graduation (kgf) 20 40 100 100 200
Clearance For Tensile (mm) 50-700 50-700 50-700 50-800 50-850
Clearance for compression test (mm) 0-700 0-700 0-700 0-800 0-850
Clearance between columns (mm) 500 500 500 600 750
Ram stroke (mm) 150 200 200 250 250
Straining/piston speeds (mm/min) (at no load) 0-300 0-150 0-150 0-100 0-80
Connected Load

HP 1.5 1.5 2.5 2.5 3.5
V 400-440 400-440 400-440 400-440 400-440
O 3 3 3 3 3
DIMENSION L x W x H (approx)(mm) 2032x750x
1960
2032x750x
1960
2060x750x
2180
2065x750x
2534
2415x815x
2900
WEIGHT (approx)(kg) 1500 1500 2500 3500 5500
Standard Accessories : for Tension Test

Clamping jaws for round 10-20 10-20 10-25 10-25 10-25
specimens diameter (mm) 20-30 20-30 25-40 25-40
40-55
25-45
45-70
Clamping jaws for flat 0-10 0-10 0-15 0-15 0-22
specimens thickness (mm) 10-20 10-20 15-30 15-30 22-44
44-65
Width 50 50 65 70 70
For Compression Test

Pair of compression plates
of diameter (mm)
120 120 120 120 160
For Transversed 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
500 500 500 600 800
Radius of punch tops (mm) 6,12 6,12 12,16 16,22 16,22

Special Accessories:

These include load stabilizer, Brinell Test Attachment, Mechanical Extensometer, Electronic Extensometer, Adjustable bend test attachment, 180·bend test, shear test attachment and a wide range accessories offered on request at an additional cost.

Installation:

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

Due to constant R&D, specifications and features are subject to change without notice. The dimensions given above are approximate.


Principle of Operations

Operation of the machine is by hydraulic transmission of load from the test specimen 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 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 leverage to the 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 represent 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 the specimen.


Machine consists of:

• Straining Unit • Control Panel Power Pack • Hydraulic Controls • Load Indicator System • Automatic Continuous Roll Load - Elongation Recorder


Mechanical Extensometer

Extensometer is essential to measure the elongation of test specimen under load, to have its mechanical properties. Couplon Control System's Extensometer Model EM 1 is intended to serve the above purpose.


Technical Data

1 Measuring Range 0 to 3 mm
2 Least Count 1/100 mm
3 Gauge Length (Adjustable) 30 to 120 mm
4 Thickness or diameter 1 to 20 mm
5 Net Weight 0.3 kg Approx.
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