Dilip Tools & Instruments
Dilip Tools & Instruments
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We are Manufacturer, Supplier, Exporter of Analogue Cum Computerised Universal Testing Machines and our setup is situated in Kolhapur, Maharashtra, India.

Features

  • Loading accuracy as high as 1%
  • Suitable at variable speeds to suit a wide range of materials
  • Continuous roll autographic recorder supplied as standard to enable study of the behavior 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 range of standard and special accessories, including Servo control mode, Hydraulic grip front loading, Touch screen control panel & load stabilizer.
  • Wide range of standard and special accessories.
  • Easy change from plain to threaded and screwed specimens.
  • Large effective clearance between columns enables testing of standards 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
  • Directional control valve provided to change the testing for analogue to digital mode
  • RS 232 serial port to transfer data to computer for analysis/storage evaluation etc.
  • Printer & PC graphs enable study the behavior of the material
  • Simplicity in reading because of digital readouts
  • Load Capacity 100 kN, 200 kN, 400 kN, 600 kN, 1000 kN

Application

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

Principal of Operation for

Digital Mode : Model UTNE
Operation of machine is by hydraulic transmission of load from the test specimen through pressure transducer 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 pressure transducer housed in the control panel. The transducer gives the signal to the electronic display unit, corresponding to the load exerted by the main ram.

Simultaneously the encoder fitted on the straining unit gives the mechanical displacement to the electronic display unit. Both the signals are processed by the microprocessor and load and displacement is displayed on the digital readouts simultaneously.

Analogue Mode : Model UTNE
Operation of machine is by hydraulic transmission of load from the test specimen to a separately housed load indicator.

The hydraulic 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 historically lubricated ram. Main cylinder pressure i transmitted to the cylinder of the pendulum dynamometer system house 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 lever system to a 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 represents 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 a specimen.

Machine Consists of Straining Unit

This consists of a cylinder motor with chain and sprocket drive and a table coupled with the ram of the hydraulic cylinder, mounted on to a robust base. The cylinder and the ram are individually lapped to eliminate friction. The upper cross-head is rigidly fixed to the table by two strengthened columns. The lower cross-head is connected to two screwed columns which are driven by a motor Axial loading of the at is ensured by relieving the cylinder and ram of any possible side loading by the provision of ball seating. An displacement scale, with a minimum graduation of lmm, is provided to measure the deformation of the specimen.

Tension test is conducted by gripping the test specimen between the upper and lower cross-heads. Compression, transverse, bending, shear and hardness tests are conducted between the lower cross-head and the table. The lower cross-head can be raised or lowered rapidly by operating the screwed columns, thus facilitating ease of fixing of the test specimen.

Control Panel

The Control Panel consists of a power pack complete with dhve motor and an oil tank, control valves and electronic display unit.

Power Pack

The power pack generates the maximum pressure of 200 kgf/cm2. The hydraulic pump provides continuously non-pulsating oil flow. Hence the load application is very smooth.

Hydraulic Controls

Hand operated wheels are used to control the flow to and from the hydraulic cylinder. The regulation of the oil flow is infinitely variable. Incorporated in the hydraulic system is a regulating valve, which maintains a practically constant rate of piston movement. Control by this valve allows extensometer reading to be taken.

Load Indicator System

This system consists of a large dial and a pointer. A dummy pointer is provided to register the maximum load reached during the test. Different measuring ranges can be selected by operating the range selection knob. An overload trip switch is incorporated which, automatically cuts out the pump motor when the load range in use is exceeded.

Displacement

An elongation scale, with a minimum graduation of lost, is provided to measure the deformation of the specimen.

Pendulum Dynamometer

This unit permits selection of favorable hydraulic ratios producing relatively small frictional forces.Pressurized oil in the loading cylinder pushes up the measuring piston proportionately and actuates the special dynamometer system. The piston is constantly rotated to eliminate friction. The dynamometer system is also provided with an integral damper and ensures high reliability of operation.

The load transmitted to the dynamometer is transferred through a pendulum to the load indicator.

Accuracy & Calibration

DTI Electronic Universal testing machine is closely controlled for sensitivity, accuracy and calibration during every stage of manufacture. Machine is calibrated over each of its measuring range in accordance with the procedure laid down in British standards 1610: Part1: 1992 and IS 1828: Part1: 1991.

'DTI Electronic Universal Testing Machine' complies with Grade "A" of BS: 1610:Part1:1992 and class 1 of IS-1828-Part1:1991.


MODELUNITUTN 10UTN 20UTN 40UTN60UTN 100
Maximum CapacitykN1002004006001000
FOR ANALOGUE MODE
1 st Measuring rangekN0-1000-2000-4000-6000-1000
Minimum GraduationskN0.20.4112
2nd Measuring rangekN0-500-1000-2000-3000-500
Minimum GraduationskN0.10.20.50.51
3rd Measuring rangekN0-250-500-1000-1200-250
Minimum GraduationskN0.050.10.250.20.5
4th Measuring rangekN0-100-200-400-600-100
Minimum GraduationskN0.020.040.10.10.2
FOR DIGITAL MODE
Measuring rangekN0-1000-2000-4000-6000-1000
Load resolution (20000 counts full scale)N510203050
Load range with accuracy of Measurement +/-1%kN2 to 1004 to 2008 to 40012 to 60020 to 1000
Clearance for compression test (At fully descended working piston)mm0-7000-7000-7000-8000-850
Clearance between columnsmm500500500600750
Ram Strokemm150200200250250
Straining/ Piston Speed (at no load)mm/min0-3000-1500-1500-1000-80
CONNECTED LOAD
Power for UTNEHP1.31.32.32.53.5
V400-440400-440400-440400-440400-440
 ø 33333
STANDARD ACCESSORIES
FOR TENSION TEST
10-2010-2010-2510-2510-25
Clamping jaws for round specimens of diameter (Optional)mm20-3020-3025-4025-4025-45
40-5545-65
Clamping jaws for flat specimens of thickness0-100-100-150-150-22
mm10-2010-2015-3015-3022-44
44-65
Clamping jaws for flat specimens of thickness0-100-100-100-100-10
mm10-2010-2010-2010-2010-20
20-3020-3020-30
30-40
Widthmm5050657070
FOR COMPRESSION TEST
Pair of Compression Plates of Dia.mm120120120120160
FOR TRANSVERSE TEST
Table with adjustable rollers
width of rollersmm160160160160160
Diameter of Rollersmm3030305050
Maximum clearance between supportsmm500500500600800
Radius of punch topsmm6,126,1212,1616,2216,22