Computerized Universal Testing Machine

• A number of materials and metals in different forms and shapes can be tested for a variety of tests like Tension, Compression, Transverse, Bend, Shear, Brinell Hardness, etc.
• Special attachments are also available for testing of flat belts, chain links, wire ropes, etc.

Construction

• Loading frame
• The base has a hydraulic cylinder at its center 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 cross head and two columns
• The individually lapped cylinder piston assembly ensure smooth transfer of force with minimum friction
• Hydraulic system
• Hydraulic 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 provided 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
• Electrical System
• A separate switch box and electrical panels are provided
• Both the hydraulic pump motor and the geared motor have interlocks
• Limit switches are provided to stop the hydraulic pump motor if the load increases beyond the machine capacity or if the piston stroke is exceeded
• Computerised Control Panel
• Load measuring system
• The 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, are controlled by push buttons and they have interlocks to prevent simultaneous working of the Rotary Encoder
• Encoder signal is fed to the Data Acquisition Panel to get displacement in mm.

Features of Data Acquisition Unit

• A Microcontroller based data acquisition system for data acquisition & indication.
• Two 16 characters * 2 lines LCD displays for displaying load & cross head 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 resolution of 0.04kN for TUE-C-400   Model)
• Tare load & reset elongation facilities available.
• Elongation is indicated with a resolution 0.1 mm.
• Storage space to store data of 1 off-line test.

Features 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 & Graphs can be sent directly to the printer via parallel port or 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 Stain characteristics during conduction of test. The plot is auto scaled & displayed.
• Selectable units (kN, kgf, 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.