Specifications

Dynamic Hydraulic Universal Testing Machineswhich are used in a variety of tests like tension compression flexure fatigue (low cycle fatigue / high cycle fatigue / fatigue crack propagation ASTM E647), fracture mechanics (K1c per ASTM E399, J1c, CTOD per ASTM E-1290), damping properties and vibration testing.
Our test systems are designed for conducting tests at ambient temperature, elevated temperature (high temperature fatigue characterization) and low temperature. Test speed range slow strain rate testing (typical of corrosion interaction)(1 x 10 -7 /s strain rate) high strain rate testing (flow deformation studies).(150 /s true strain rate)
The testing machines are fitted with servo-controlled pumps that come in two versions: hard-wired autonomous control with electronic setting of operating high and low pressure. Operating pressure is set with the convenience of on-screen graphics user interface.

Technical features of our hydraulic materials test systems are:

• Metals, composites and polymers.
• Low cycle fatigue (as per ASTM E606) .
• Fracture mechanics including fatigue crack growth (as per ASTM E647 and E1820).
• Room temperature and high temperature testing.
• Testing in corrosive media.
• Fully self -contained test system packaged for easy relocation and movement.
• Load frame on vibration isolators.
• No additional utilities required. Simply plug into 3- phase mains and commence testing.
• 0 to 100 Hz cycling frequency. Vibration isolators for quiet operation.

Variety of add- on fixtures and transducers, all supported by single - platform packaging: self- aligning hydraulic LCF grips, extensometers, pulsed, reversible p.d. unit, etc

Advantages Of Test System

Specification

Mechanical hardware

• Hydraulic grips with side insertion of specimen and provision for threaded adapter to screw on other grips including compression platen, clevises and 3-pt bend.
• Self-aligning hydraulic grips for LCF testing that preclude the need for manual fixture / load train alignment process

Hydraulics

• Electronically controlled variable flow and variable pressure pumps in the 4 to 100 LPM range.
• Contamination insensitive servo-hydraulics. Direct drive servovalve avoiding need for contamination sensitive pilot stage.
• 20-65 LPM pumps: Fiber-glass sound isolation and dust insulation enclosure.

Control hardware

• 24-bit data acquisition with digitally programmable signal conditioning including hardware gains and offsets, coupled with 32-bit software gains and offsets.
• Expandable to 32 channels of servo control
• Expandable to 80 channels of signal conditioning and data acquisition to suit LVDTs, strain bridges, accelerometers and high level external signals. Fully synchronous data acquisition across all acquired channels
• Up to 64 channels of digital input and output with FET option
• Option of modular expansion capability from 1 to 32 control channels and from 4 to 80 channels of signal conditioning / data acquisition
• Compatibility with legacy sensors and actuators to enable retrofits

Control Software

• Program functionality permitting concurrent tasks to share real-time data
• Extensive graphics capability with virtually unlimited number of graphics windows. All graphics settings are saved for next session
• Real-time interface with MS-Office
• High performance application development capability through MS-Office macros
• Open source application software that permits user to change existing code and add new functionality
• Capability for multiple tasks to concurrently handle ongoing test.
• Capability for real-time debugging of new application software

Commercial

• Option of 24-month Warranty on entire supply with the exception of consumables (oil, filter, paper and ink)
• Free upgrades on all existing software as new versions appear
• Free phone and e-mail consulting during Warranty and under AMC
• I-Support. Option of Internet based remote control, tuning and diagnostics

Advantage to user

Mechanical hardware

• Other grips can be mounted without the inconvenience of removing hydraulic grips
• Less experienced technicians can set up LCF test without the fear of misalignment

Hydraulics

• Continuous adjustment of pump flow to satisfy instantaneous requirement of pressure and flow. This ensures minimum energy is consumed to deliver required performance, minimizes oil heating and therefore reduces cooling requirements by up to 60%. A Green solution.
• Low life-cycle cost as expensive replacement parts are avoided.
• Provides aesthetic appearance. Considerably reduces pump noise and permits location of pump next to operator area.

Control hardware

• User assignable floating range in engineering units of preferred choice. Highest commercially available resolution on data acquisition.
• Large control channel count permits testing of large structures with up to 32 actuators to accurately simulate load/displacement distribution under static and dynamic conditions
• Combining test controls with large synchronized channel count in data acquisition eliminates the need for a separate data acquisition system. The additional channels can be used to collect strain/displacement/acceleration response from the structure that is time synchronized with applied load
• Permits the activation and status sense of a large number of external devices and literally converts the controller into a user programmable logic controller. FET option enables sinking of up to 2A current for direct activation of solenoids.
• Minimum cost of acquisition and growth. User gets to benefit from familiarity with existing test system
• Controller electronics are 100% compatible with most industry standard transducers including load cells, LVDTs, strain gages and MEMS accelerometers

Control Software

• Thanks to Global Data Sharing (GDS) platform, realtime data are simultaneously visible to virtually unlimited tasks participating in test control and data acquisition. Addition of greater functionality will not degrade software performance
• Graph software permits real-time visualization of any combination of up to 128 channels of available DAQ channels on any number of re-sizeable and user configurable graphics screens
• GDS based interface with MS-Office permits realtime transfer of acquired data into MS-Office environment including Word, Excel, PowerPoint, Outlook and Access. Requires MS-Office License
• MS-Office VB macros can be used to develop new GDS application software without performance Overheads
• Reduces dependence on vendor and gives flexibility to power users wishing to change, adapt or enhance application software to suit their requirements. Frees user from licensing overheads
• Required for user to add new functionality to existing application without changing already existing code
• The ability to debug new real-time application functionality without intruding into an ongoing test considerably eases software development by less experienced programmers

Commercial

• Reduced expenditure and increased confidence Level
• User is up to date and enjoys continuous support
• Reduced operational overheads
• Does not require Service Engineer visit. Requires License to enable I-Support

Application

Universal testing machine have a wide range of application. A number of material and metals in different forms and shapes can be tested for a variety of tension, compression, transverse, bend, shear, brinell hardness, etc. special attachments are also available for testing of flat belts, chain links, wire ropes, etc.

Construction

1. Loading FrameThe base has a hydraulic cylinder art its centre, and two main screws at both ends. The middle cross head is mounted on screws through main nuts. The middle cross head can be moved up or down through chain transmission and geared motor to adjust the initial tensile / compression clearance. On the piston rests an assembly of upper, lower crosshead and two columns. The individually lapped cylindrical piston assembly ensures smooth transfer of force with minimum friction.

2. Hydraulic SystemHydraulic circuit consists of hydraulic power pack having a directly driven radial plunger pump which gives a continuous non pulsating flow of oil pressure upto 250 bar. Oil filter, oil strainer, air breather, oil level indicator, drain plug are on the power pack. A pressure compensated needle type flow control valve is provided to control the oil flow to cylinder thereby achieving desired piston speed. Infinitely variable speeds can be obtained with the help of valves.

3. Electrical SystemA separate switch box and electrical panels are provided. Both the hydraulic pump motor and the geared motor have interlocks. Limit switches are provided are to stop the hydraulic pump motor if the load increases beyond the machine capacity or if piston stroke is exceeded.

Analogue Control Panel

1. Load measuring systemThe oil pressure in the main cylinder is transferred to the small dynamometer cylinder. The dynamometer piston is kept rotating at a slow speed to ensure dynamic friction condition. The piston exerts a force proportionate to the pressure on the hanger connected to one arm of the pendulum, through an auto range selecting lever system. This force deflects the pendulum. The range selection can be effected by simply turning a knob, provided outside of the panel. An effective damping arrangement is provided to ensure slow return of the pendulum after sudden fracture of the test specimen.

2. Load indicating arrangementThe pendulum lever pushes rack which slides over two pulleys. The rack movement is proportionate to the load. A pinion in engagement movement of the rack rotates and moves the pointer fixed to its shaft. The pointer moves over a large dial indicating the load. A window type dial is provided for easy and clear change of the load range.

3. Recording systemA continuous roll type load elongation recorder is provided for plotting a load- elongation graph. Load is plotted by the horizontal movement of the rack. Elongation is plotted on the vertical axis and is equal to the movement of the main piston elongation ratio of 1:2 and 1:5 can be obtained.

4. Accuracy and calibrationAll measuring ranges of the machine are calibrated within an accuracy of +/- 1% from 20% to 100% of each range as per is 1828 and BS 1610.

Computerised Control Panel

1. Load measuring systemThe oil pressure in the main cylinder is also transferred to an electronic pressure transducer which gives a proportionate signal to the data acquisition unit. Both, the motor for hydraulic operation and cross head motion controlled by push button and they have interlocks to prevent simultaneous working of the motors. The electrical panel is fixed on the control panel. Displacement measurement is carried out by means of a rotary encoder. Encoder signal is fed to the data acquisition panel to get displacement in mm.

2. Features of data acquisition unit

• A microcontroller based data acquisition system for data acquisition & indication.
• Two 16 characters x 2 lines LCD displays for displaying load & crosshead travel value.
• Auto - detection of over-load, over travel & specimen break. On detection of any of the above conditions, the machine is automatically switched off.
• Load is indicated with resolution of 0.01% of machine capacity for the entire measurement range (in other words with a resolution of 0.04kN for 400Kn model)
• Tare load & reset elongation facilities available.
• Elongation is indicated with a resolution 0.1 mm
• Storage space to store data of off-line test.

3. Feature of win UTM software

• The Win UTM software can run a variety of mechanical tests, recall data from previous test & prepare test report.
• Menu driven software for easy of use
• Test reports & graph can be sent directly to the printer via parallel port USB port.
• Storage & retrieval of test parameters.
• Display of load elongation (stress & strain are optional) at any instant through out the test.
• On line display of load Vs elongation or stress Vs strain characteristics during conduction of test. The plot is auto scaled & displayed.
• Selectable units (kN. Kgf, lbf, mm, inch)
• Variable sample break detection.
• Load is indicated with a resolution of 0.01% of machine capacity for the entire measurement range of 2% to 100% of machine capacity.
• Elongation is indicated with a resolution of 0.1 mm
• Provision of auto- zeroing of elongation at set pre-load.
• Tare load and reset elongation facilities available.
• Auto-detection of over load, one travel and specimen break. On detection of any of these conditions, the machine is automatically switched OFF.
• High precision sensors and encoders used for load and elongation measurement.
• Large storage capacity for sloring data (upto 50, 000) on the computer.
• Provision for calculations of parameters such as load and elongation at yield, peak load at break. Yield stress, ultimate stress etc. the parameters to be calculated are user selectable.
• Test conditions, test data and test results are stored in a specific file based on a unique file structure.
• Built in facility for printing the test results and test graph from PC. A printer copy of consolidated test results conducted on a particular date can also be obtained. Graph of load Vs Crosshead travel, Load Vs Time, Crosshead travel Vs Time, Load Vs Extension, stress Vs strain etc. are available.
• Specific software for tensile, compression, shear, bend, TOR-Steel and other tests.
• If an electronic extensometer is used, then proof stress values (from 0.1% to 1.0%) can be determined.
• If an electronic extensometer is used, software prompts the user to remove extensometer as soon as proof load is crossed. After removal of extensometer, measurement of crosshead travel by the encoder commences and proceeds till completion of test. A combined auto scaled graph using extensometer and encoder is available.The on-line plot shows the graph of load Vs extension (using extensometer) and the plot is continued when measurement is through rotary encoder. The extension Vs elongation axis is appropriately scaled automatically.

4. Accuracy and calibrationEvery machine is calibrated in accordance with procedure laid down in BS 1610-1964 and 1828-1991. Computerized Universal Testing Machine comply with grade A of BS 1610-1964 and grade 1 of IS 1828- 1991. An accuracy of +/- 1% guaranteed from 2% to 100% of capacity of the machine. The Computerized Universal Testing Machine is supplied without the necessary computer, its operating system and the printer; but is supplied with requisite software, conditioning system and the interfaces.

Features

• For charpy tests on various materials.
• Strictly conforms to ASTM-E-23-2007 specifications.
• Works on pendulum principle. Difference between height of drop of pendulum before rupture and height of rise after rupture of specimen is directly proportional to impact energy absorbed by specimen and is indicated by a pointer on a large dial for Model-ASTM & on Digital Display for Model- ASTM (D).
• Single stand design which facilitates fast and easy positioning and centering of specimen which is a basic requirement of sub-zero testing.
• Unique spring loaded braking system for smooth and jerk free braking.
• NIST approval of machine with samples from NIST-USA. Can be arranged.
• Digital version of ASTM model will be available soon. OPTIONAL ACCESSORIES:
  • Self centering tong for Charpy test specimen (useful particularl for carrying out tests at sub zero temperature).
  • Sub zero temperature bath with digital temperature indicator.
  • Go: No-Go gauges for conforming the following parameters of specimen-within the limits specified by the standard.
    • Center line of notch from both ends.
    • Angle of V notch.
    • Depth below standard V notch
    • Cross section of 10x10 mm specimen.
  • Milling cutter for V notch.
  • Charpy & Izod notch (V&U) broaching machines.
  • Lateral expansion gauge as per ASTM-E-23.
  • Standard impact specimen for verifivcation of machine from NIST-USA (we also undertake calibration of the machine as per ASTM-E-23 including approval from NIST-USA).

Specifications

Machines are available from 1kN to 200kn Capacity. Useful for various application Such as Tensile, Compression transverse test and other tests.
Machine will be design according to the customer requirements and budget. Can Supply in various combinations such as Lead Screw Driven, Ball Screw Driven, Speed Change by Pulley, AC servo, D.C servo Motor etc.
Various typed of grips are available Grips for flat and round specimen with different inserts , Vice type grips Pneumatic grips , Fixture for bend test / flexural test, Shear test attachment.

Specifications

Dynamic Hydraulic Universal Testing Machineswhich are used in a variety of tests like tension compression flexure fatigue (low cycle fatigue / high cycle fatigue / fatigue crack propagation ASTM E647), fracture mechanics (K1c per ASTM E399, J1c, CTOD per ASTM E-1290), damping properties and vibration testing.
Our test systems are designed for conducting tests at ambient temperature, elevated temperature (high temperature fatigue characterization) and low temperature. Test speed range slow strain rate testing (typical of corrosion interaction)(1 x 10 -7 /s strain rate) high strain rate testing (flow deformation studies).(150 /s true strain rate)
The testing machines are fitted with servo-controlled pumps that come in two versions: hard-wired autonomous control with electronic setting of operating high and low pressure. Operating pressure is set with the convenience of on-screen graphics user interface.

Technical features of our hydraulic materials test systems are:

• Metals, composites and polymers.
• Low cycle fatigue (as per ASTM E606) .
• Fracture mechanics including fatigue crack growth (as per ASTM E647 and E1820).
• Room temperature and high temperature testing.
• Testing in corrosive media.
• Fully self -contained test system packaged for easy relocation and movement.
• Load frame on vibration isolators.
• No additional utilities required. Simply plug into 3- phase mains and commence testing.
• 0 to 100 Hz cycling frequency. Vibration isolators for quiet operation.

Variety of add- on fixtures and transducers, all supported by single - platform packaging: self- aligning hydraulic LCF grips, extensometers, pulsed, reversible p.d. unit, etc

Advantages Of Test System

Specification

Mechanical hardware

• Hydraulic grips with side insertion of specimen and provision for threaded adapter to screw on other grips including compression platen, clevises and 3-pt bend.
• Self-aligning hydraulic grips for LCF testing that preclude the need for manual fixture / load train alignment process

Hydraulics

• Electronically controlled variable flow and variable pressure pumps in the 4 to 100 LPM range.
• Contamination insensitive servo-hydraulics. Direct drive servovalve avoiding need for contamination sensitive pilot stage.
• 20-65 LPM pumps: Fiber-glass sound isolation and dust insulation enclosure.

Control hardware

• 24-bit data acquisition with digitally programmable signal conditioning including hardware gains and offsets, coupled with 32-bit software gains and offsets.
• Expandable to 32 channels of servo control
• Expandable to 80 channels of signal conditioning and data acquisition to suit LVDTs, strain bridges, accelerometers and high level external signals. Fully synchronous data acquisition across all acquired channels
• Up to 64 channels of digital input and output with FET option
• Option of modular expansion capability from 1 to 32 control channels and from 4 to 80 channels of signal conditioning / data acquisition
• Compatibility with legacy sensors and actuators to enable retrofits

Control Software

• Program functionality permitting concurrent tasks to share real-time data
• Extensive graphics capability with virtually unlimited number of graphics windows. All graphics settings are saved for next session
• Real-time interface with MS-Office
• High performance application development capability through MS-Office macros
• Open source application software that permits user to change existing code and add new functionality
• Capability for multiple tasks to concurrently handle ongoing test.
• Capability for real-time debugging of new application software

Commercial

• Option of 24-month Warranty on entire supply with the exception of consumables (oil, filter, paper and ink)
• Free upgrades on all existing software as new versions appear
• Free phone and e-mail consulting during Warranty and under AMC
• I-Support. Option of Internet based remote control, tuning and diagnostics

Advantage to user

Mechanical hardware

• Other grips can be mounted without the inconvenience of removing hydraulic grips
• Less experienced technicians can set up LCF test without the fear of misalignment

Hydraulics

• Continuous adjustment of pump flow to satisfy instantaneous requirement of pressure and flow. This ensures minimum energy is consumed to deliver required performance, minimizes oil heating and therefore reduces cooling requirements by up to 60%. A Green solution.
• Low life-cycle cost as expensive replacement parts are avoided.
• Provides aesthetic appearance. Considerably reduces pump noise and permits location of pump next to operator area.

Control hardware

• User assignable floating range in engineering units of preferred choice. Highest commercially available resolution on data acquisition.
• Large control channel count permits testing of large structures with up to 32 actuators to accurately simulate load/displacement distribution under static and dynamic conditions
• Combining test controls with large synchronized channel count in data acquisition eliminates the need for a separate data acquisition system. The additional channels can be used to collect strain/displacement/acceleration response from the structure that is time synchronized with applied load
• Permits the activation and status sense of a large number of external devices and literally converts the controller into a user programmable logic controller. FET option enables sinking of up to 2A current for direct activation of solenoids.
• Minimum cost of acquisition and growth. User gets to benefit from familiarity with existing test system
• Controller electronics are 100% compatible with most industry standard transducers including load cells, LVDTs, strain gages and MEMS accelerometers

Control Software

• Thanks to Global Data Sharing (GDS) platform, realtime data are simultaneously visible to virtually unlimited tasks participating in test control and data acquisition. Addition of greater functionality will not degrade software performance
• Graph software permits real-time visualization of any combination of up to 128 channels of available DAQ channels on any number of re-sizeable and user configurable graphics screens
• GDS based interface with MS-Office permits realtime transfer of acquired data into MS-Office environment including Word, Excel, PowerPoint, Outlook and Access. Requires MS-Office License
• MS-Office VB macros can be used to develop new GDS application software without performance Overheads
• Reduces dependence on vendor and gives flexibility to power users wishing to change, adapt or enhance application software to suit their requirements. Frees user from licensing overheads
• Required for user to add new functionality to existing application without changing already existing code
• The ability to debug new real-time application functionality without intruding into an ongoing test considerably eases software development by less experienced programmers

Commercial

• Reduced expenditure and increased confidence Level
• User is up to date and enjoys continuous support
• Reduced operational overheads
• Does not require Service Engineer visit. Requires License to enable I-Support

Application

Universal testing machine have a wide range of application. A number of material and metals in different forms and shapes can be tested for a variety of tension, compression, transverse, bend, shear, brinell hardness, etc. special attachments are also available for testing of flat belts, chain links, wire ropes, etc.

Construction

1. Loading FrameThe base has a hydraulic cylinder art its centre, and two main screws at both ends. The middle cross head is mounted on screws through main nuts. The middle cross head can be moved up or down through chain transmission and geared motor to adjust the initial tensile / compression clearance. On the piston rests an assembly of upper, lower crosshead and two columns. The individually lapped cylindrical piston assembly ensures smooth transfer of force with minimum friction.

2. Hydraulic SystemHydraulic circuit consists of hydraulic power pack having a directly driven radial plunger pump which gives a continuous non pulsating flow of oil pressure upto 250 bar. Oil filter, oil strainer, air breather, oil level indicator, drain plug are on the power pack. A pressure compensated needle type flow control valve is provided to control the oil flow to cylinder thereby achieving desired piston speed. Infinitely variable speeds can be obtained with the help of valves.

3. Electrical SystemA separate switch box and electrical panels are provided. Both the hydraulic pump motor and the geared motor have interlocks. Limit switches are provided are to stop the hydraulic pump motor if the load increases beyond the machine capacity or if piston stroke is exceeded.

Analogue Control Panel

1. Load measuring systemThe oil pressure in the main cylinder is transferred to the small dynamometer cylinder. The dynamometer piston is kept rotating at a slow speed to ensure dynamic friction condition. The piston exerts a force proportionate to the pressure on the hanger connected to one arm of the pendulum, through an auto range selecting lever system. This force deflects the pendulum. The range selection can be effected by simply turning a knob, provided outside of the panel. An effective damping arrangement is provided to ensure slow return of the pendulum after sudden fracture of the test specimen.

2. Load indicating arrangementThe pendulum lever pushes rack which slides over two pulleys. The rack movement is proportionate to the load. A pinion in engagement movement of the rack rotates and moves the pointer fixed to its shaft. The pointer moves over a large dial indicating the load. A window type dial is provided for easy and clear change of the load range.

3. Recording systemA continuous roll type load elongation recorder is provided for plotting a load- elongation graph. Load is plotted by the horizontal movement of the rack. Elongation is plotted on the vertical axis and is equal to the movement of the main piston elongation ratio of 1:2 and 1:5 can be obtained.

4. Accuracy and calibrationAll measuring ranges of the machine are calibrated within an accuracy of +/- 1% from 20% to 100% of each range as per is 1828 and BS 1610.

Computerised Control Panel

1. Load measuring systemThe oil pressure in the main cylinder is also transferred to an electronic pressure transducer which gives a proportionate signal to the data acquisition unit. Both, the motor for hydraulic operation and cross head motion controlled by push button and they have interlocks to prevent simultaneous working of the motors. The electrical panel is fixed on the control panel. Displacement measurement is carried out by means of a rotary encoder. Encoder signal is fed to the data acquisition panel to get displacement in mm.

2. Features of data acquisition unit

• A microcontroller based data acquisition system for data acquisition & indication.
• Two 16 characters x 2 lines LCD displays for displaying load & crosshead travel value.
• Auto - detection of over-load, over travel & specimen break. On detection of any of the above conditions, the machine is automatically switched off.
• Load is indicated with resolution of 0.01% of machine capacity for the entire measurement range (in other words with a resolution of 0.04kN for 400Kn model)
• Tare load & reset elongation facilities available.
• Elongation is indicated with a resolution 0.1 mm
• Storage space to store data of off-line test.

3. Feature of win UTM software

• The Win UTM software can run a variety of mechanical tests, recall data from previous test & prepare test report.
• Menu driven software for easy of use
• Test reports & graph can be sent directly to the printer via parallel port USB port.
• Storage & retrieval of test parameters.
• Display of load elongation (stress & strain are optional) at any instant through out the test.
• On line display of load Vs elongation or stress Vs strain characteristics during conduction of test. The plot is auto scaled & displayed.
• Selectable units (kN. Kgf, lbf, mm, inch)
• Variable sample break detection.
• Load is indicated with a resolution of 0.01% of machine capacity for the entire measurement range of 2% to 100% of machine capacity.
• Elongation is indicated with a resolution of 0.1 mm
• Provision of auto- zeroing of elongation at set pre-load.
• Tare load and reset elongation facilities available.
• Auto-detection of over load, one travel and specimen break. On detection of any of these conditions, the machine is automatically switched OFF.
• High precision sensors and encoders used for load and elongation measurement.
• Large storage capacity for sloring data (upto 50, 000) on the computer.
• Provision for calculations of parameters such as load and elongation at yield, peak load at break. Yield stress, ultimate stress etc. the parameters to be calculated are user selectable.
• Test conditions, test data and test results are stored in a specific file based on a unique file structure.
• Built in facility for printing the test results and test graph from PC. A printer copy of consolidated test results conducted on a particular date can also be obtained. Graph of load Vs Crosshead travel, Load Vs Time, Crosshead travel Vs Time, Load Vs Extension, stress Vs strain etc. are available.
• Specific software for tensile, compression, shear, bend, TOR-Steel and other tests.
• If an electronic extensometer is used, then proof stress values (from 0.1% to 1.0%) can be determined.
• If an electronic extensometer is used, software prompts the user to remove extensometer as soon as proof load is crossed. After removal of extensometer, measurement of crosshead travel by the encoder commences and proceeds till completion of test. A combined auto scaled graph using extensometer and encoder is available.The on-line plot shows the graph of load Vs extension (using extensometer) and the plot is continued when measurement is through rotary encoder. The extension Vs elongation axis is appropriately scaled automatically.

4. Accuracy and calibrationEvery machine is calibrated in accordance with procedure laid down in BS 1610-1964 and 1828-1991. Computerized Universal Testing Machine comply with grade A of BS 1610-1964 and grade 1 of IS 1828- 1991. An accuracy of +/- 1% guaranteed from 2% to 100% of capacity of the machine. The Computerized Universal Testing Machine is supplied without the necessary computer, its operating system and the printer; but is supplied with requisite software, conditioning system and the interfaces.

Features

• For charpy tests on various materials.
• Strictly conforms to ASTM-E-23-2007 specifications.
• Works on pendulum principle. Difference between height of drop of pendulum before rupture and height of rise after rupture of specimen is directly proportional to impact energy absorbed by specimen and is indicated by a pointer on a large dial for Model-ASTM & on Digital Display for Model- ASTM (D).
• Single stand design which facilitates fast and easy positioning and centering of specimen which is a basic requirement of sub-zero testing.
• Unique spring loaded braking system for smooth and jerk free braking.
• NIST approval of machine with samples from NIST-USA. Can be arranged.
• Digital version of ASTM model will be available soon. OPTIONAL ACCESSORIES:
  • Self centering tong for Charpy test specimen (useful particularl for carrying out tests at sub zero temperature).
  • Sub zero temperature bath with digital temperature indicator.
  • Go: No-Go gauges for conforming the following parameters of specimen-within the limits specified by the standard.
    • Center line of notch from both ends.
    • Angle of V notch.
    • Depth below standard V notch
    • Cross section of 10x10 mm specimen.
  • Milling cutter for V notch.
  • Charpy & Izod notch (V&U) broaching machines.
  • Lateral expansion gauge as per ASTM-E-23.
  • Standard impact specimen for verifivcation of machine from NIST-USA (we also undertake calibration of the machine as per ASTM-E-23 including approval from NIST-USA).

Specifications

Machines are available from 1kN to 200kn Capacity. Useful for various application Such as Tensile, Compression transverse test and other tests.
Machine will be design according to the customer requirements and budget. Can Supply in various combinations such as Lead Screw Driven, Ball Screw Driven, Speed Change by Pulley, AC servo, D.C servo Motor etc.
Various typed of grips are available Grips for flat and round specimen with different inserts , Vice type grips Pneumatic grips , Fixture for bend test / flexural test, Shear test attachment.