Tensile Testing Machine

DI make TNE series machines are electronic screw driven machines with precision screw and column construction and variable speed drive. These are high precision, high performance universal testing machines, maximum capacity up to 100 KN. With the help to computer and micro-computer, all the operations from control of load to processing of data are carried out with excellent performance, reliability, flexibility and easy operation.

The machines are suitable for studying mechanical behavior of various materials like iron and metals, rubbers, plastics, ceramics, fabrics, composites, cables and wires. As a matter of fact, itis an indispensable instrument for the modern industries. Two options are available mainly acme threaded screw with DC motor drive and ball lead screw with servo drive. The machines confirm to IS, BS & ASTM standards.

Features :

• Computer controlled mechanism under windows 2000/XP
• Variable speed drive with DC /AC servo drive options.
• Automatic identification and interchangeability of load cells.
• Different clamping devices to suit specific test requirement.
• Safety interlock by end limit switches and by overload sensing.

TNE Series:
Depending upon test requirements and budget, TNE series machines are available with following options.

DRIVE-DD:
DC motor with thyrister drive to give speed ratio of 1:10 as standard and1:100 as optional.

DRIVE-SD:
Servo motor & PWM drive to give speed ratio of 1:1000.

Economical Models:
These machines are with a rigid, stable structure with high stiffness, two columns and a single screw. Machine uses three phase induction motor with fixed speed as standard.A variable speed drive is available as option.

Grips and Clamping Device :

• Wedge type grips for flat / round specimen.
• Compression plate.
• Special grips as per requirement.
• Vise type grips.
• Bending fixture.
• Shear attachment.

Model TNE-MCP:
Micro Controller based operation Micro Controller controlled system with digital display of load and disp. / Extn. Machine, operations like speed, crosshead direction are controlled from the control panel.

Control Panel Features (Panel Control Mode) :

• Sealed membrane keyboard with numeric keypad
• Predetermined test data can be entered
• Digital tare for Load and Reset for Disp / Extn.
• Load vs Disp. graph available on Dot matrix printer
• Auto scaling br graph plotting at the end of test
• Selection of Stop/ Return of cross heed and direction
• Results include Peak Load, Max. Disp, UTS, % Elong

Evaluating % Elongation : Long Travel Extensometer
MLT-600 is a balanced clip-on type extensometer used to measure strain accurately. In association with DI control unit, true extension of the sample with 0.01 mm resolution is directly displayed. The distance between two small clamps attached to the sample is preset to any desired gauge length. Cords attached to each clamp transmit the movement to two sensors mounted at the lop of the extensometer column. These produce pulses which drive the digital strain display thus detecting strain accurately. This is suitable for rubber and semi regid plastics. Maximum extension is 600mm & gauge length continuously variable.

Model TNE-MP (PC) :
Computerised Operation DI-MP panel is connected to computer through RS-232 port the control is transferred to PC and with the help f windows based application software, complete testing can be performed. This system has two modes of operations, Panel & PC control.

Evaluating Proof Stress : Electronic Extensometer
DI-2 is strain gauge type extensometer to easure material extension with aresolution of one micron. It is designed to be clamped directly on specimen. This is used to measure strain up to elastic limits to determine important parameter like 0.1% to 1% proof stress and youngs modulus. DI 2 has two fixed gauge length of 25mm & 50mm. Change of gauge length is by means of replacing button knife-edge extender. DI 2 is fabricated from high strength light weight aluminium with a durable anodized finish the knife-edges are made from oil hardended tool steel to with stand heavy usage. The sample need not e machined Supports maximum dia of 40mm & maximum extension 2mm suitable for round, flat pipe and torsteel application.