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Material Testing Machines
 
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Mechanical Model (UTV Series) ( ? High Accuracy ? Economy ? Speed ? Versatility )
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Mechanical Model (UTV Series) ( ? High Accuracy ? Economy ? Speed ? Versatility )

Ergonomically DEsigned for best Man / Machine Interaction

▫ Support Tensile, Compression, Bending, Shear and so on .
▫ Printer / Plotter Interface .
▫ Max . Safety
▫ Pressure Transducer with International Traceability.
▫ μp Based / PC Based option

▫ Loading accuracy as high as! 1 %
▫ Straining rate to cover a wide range of materials.
▫ Continuous roll type load elongation recorder.
▫ High reading accuracy due to large size and design of dial.
▫ Simple control to facilitate ease of operation.
▫ Fully enclosed and protected load measuring system.
▫ Wide range of standard and special accessories including load stabilizer.
▫ Robust straining frame.
▫ Suitable for standard specimen and also structures.
▫ Motorised UP/DOWN movement of lower crosshead to enable easy and rapid fixing of test specimen.

APPLICATION :

VENUS Universal Testing Machine is designed to perform tensile, compression, bending and shear tests on metal & other materials, both in the form ottest pieces and as finished products.

PRINCIPLE OF OPERATION :

The test specimen is subjected to load with hydraulic system and is measured precisely with pendulum dynamometer.
Load is applied by hydrostatically lubricated ram. The oil Pressure in the main cylinder is transmitted to the cylinder of the pendulum dynamometer housed in the control panel. The dynamometer piston exterts a force propotionate 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 indicating pointer. Return movement of pendulum is effectively damped to absorb energy in the event of sudden brakage of specimen .

Machine comprises of the following :

STRAINING UNIT :
This consists of a hydraulic cylinder & piston mounted on a robust base. The loading me consists of an upper crosshead, middle )sshead and lower table.me upper crosshead and lower table is connected by means of two plain hard chrome plated columns.
The middle crosshead is fitted on two hard chrome plated threaded columns. A reduction gear motor drives the chain and sprockets fixed at the bottom of the threaded columns for height adjustment.
The cylinder and ram is individually lapped to eliminate friction. Axial loading of the system is ensured by provision of a ball seating under the lower table.
An elongation scale with least count of 1 mm is provided for measurement of displacement of two cross heads.
Tensile test is conducted by gripping the test specimen between the upper and middle cross head. Compression, Transverse, Bending and Shear tests are conducted between the middle crosshead and the lower table.

CONTROL PANEL:
The control panel consists of the hydraulic system, complete with drive motor, oil sump, pendulum dynamometer and the load indicating system.

HYDRAULIC SYSTEM :


The power pack has a directly driven pump which generates a maximum pressure of 200 kgf/cm . The hydraulic pupm produces a continues non- pulsating oil flow. Hence the load application is very smoth. Oil Filter, Oil stainer, Air Breather, oil level indicator and drain plug is provided which controls oil flow to the main cylider. This maintains constant rate of piston movemnt and hence staining rate is kept constant. This valve is hand operated and gives infinitely verialbe oil flow to obtain diffrent rates of straining.

Pendulum dynamometer:
The pressure in the main cylinder actuates the special dynamometer system pressurized 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 return of pendulum after sudden breakage of test piece. This unit permits selection of favorable hydraulic ratios producing relatively small frictional forces.

Load Indicating system:
This system consists of large dial and a pointer.
Displacement of pendulum actuates the rack and pinion mechanism, which operates the load indicating pointer dial indicating the load. A dummy pointer is provided to register the maximum load reached for easy and clear changing of load range.

Load / Elongation recording system:
A continuous roll (A strip chart) elongation recorder is provided for plotting load-elongation graph. Horizontal movement of the rack produces load ordinate of the diagram and drum rotation to elongation ordinate, in the ration of either 1:5 or 1:10


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Electronic Model ( UTV - E Series )
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Electronic Model ( UTV - E Series )

ELECTRONIC UNIVERSAL TESTING M/C :
Constructional : Venus make electronic Universal testing machine comprise of
a. Loading Unit
b. Measuring Control Panel
a.Loading Unit.: This is similar of standard loading unit of analogue type universal testing machine.
In addition to standard features of regular loading unit, a ROTARY ENCODER is attaches to the hydraulic ram to get accurate displacement of the ram.
b. Measuring Control Panel :
this includes,
1 : Highly Precision, sealed and very accurate pressure transducer mounted on the hydraulic pressure line of the loading unit
2: Highly stable ACQISITION system to convert Analogue output of pressure transducer into equivalent Digital Data.
3: Digital Single Processing Unit :
This is state of the art, MICROPROCESSOR based single processor which operates on Digital O/P single from Data ACQUISITION part and displays the break load etc.

4: Keyboard/ Display Panel :
This is ergonomically designed for best interaction between operated and the machine .
This incorporated sealed MEMBRANE type keyboard for data feeding & large display for load & displacement. Apart form display for load & Displacement.Apart a parallel printer port & RS232 serial communication port is also incorporated Through the printer port a Dot Matrix printer can be attached to get stress / strain curves as well as other test result. RS 232 port can be used for PC interface and hence to add variety of application software?s.

Accuracy and Calibration:
VENUS Universal testing machines are precisely controlled for accuracy and reliable calibration for accuracy and reliable Calibration during every stage of manufacture. The machines are calibrated in accordance with B.S 160: 1964 and grade 1 of I.S.: 1828-1991.
An accuracy of ? 1% is guaranteed form 20% of the load range selected from 20% of the load range selected to full load. Below 20% of the selected range the maximum permissible error 0.2% of the full load reading

INPUT PARAMETERS :

SL. NO

1

Material

Mild steel
Gauge Length 70mm
Total Legth 200mm
Gauge dia 14mm
Thickness 0mm
Width 0mm
Pre load 0.010kN

OUTPUT PARAMETERS :

Cross selection Area 153.94 mm
Ultimate load
64.67kN
Ultimate Tensile Strength
0.42 kN/ mm
Elongation
13.5mm
% of Elongation
19.28

Features: UTV - E - (?P Based)
? Large display for load and Displacement.
? RS-232 Com port for Computer interface.
? Centronics Parallel part for printer / Plotter.
? Result include
a) Load Vs. Displacement
b) Max. Load
c) Max. Displacement
d) UTS Value
e) Proof entry through sealed membrane type keyboard.

Features: UTV ? E- (PC Based)
? Window based software.
? Extension Graphics support.
? RDBMS Based file handling.
? Variety of software packages.
? Print format of customer?s choice
? Result Includes. Load vs. Displacement curve. Max load, Young?s Modulus, 0.1% or 0.2 % Proof test (with extensometer) etc.


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Tension Test
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Tension Test


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Compression Test (Standard)
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Compression Test (Standard)


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Transverse Test ( Stanadard)
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Transverse Test ( Stanadard)


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Attachment for Tension Test for wire ropes
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Attachment for Tension Test for wire ropes


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Attachment fro tension test for shouldered and threaded specimes
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Attachment fro tension test for shouldered and threaded specimes


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Calibration of machine with proving ring
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Calibration of machine with proving ring


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Share Test
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Share Test


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Mechanical Type : From 100 kN versatile production tensile compression, bending, share etc.
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Mechanical Type : From 100 kN versatile production tensile compression, bending, share etc.


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Brinell Hardness Testing machines: Hydraulic type Simple Operation Test loads 500 to 3000 kgf in steps of 250 kgf.
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Brinell Hardness Testing machines: Hydraulic type Simple Operation Test loads 500 to 3000 kgf in steps of 250 kgf.


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Torsion Testing Machine Models : 60 N Mtr to 1kN Mtr. Versatile Simple Operation
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Torsion Testing Machine Models : 60 N Mtr to 1kN Mtr. Versatile Simple Operation


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Fatigue Testing Machine
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Fatigue Testing Machine

Light Wt. Compact Size Table Mode,
No Need to foundation
Simple Lever System of Changing Load.
Accurately Calibration as per IS 5075 Calibration in Nm available on request

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Tensile Testing Machines
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Tensile Testing Machines

Mechanical Type
Simple Operation
Fixed / Variable Speed Available
No foundation Required

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Vertical Balancing Machines
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Vertical Balancing Machines

0.5 Kg to 300 Kg Models Hard Bearing design Single plane version Choice for variety of Instrumentation Variety of fixtures available

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