Features : |
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• Loading accuracy as high as ±1%.
• Straining at variable speeds to suit a wide range of materials.
• Printer & PC graphs enables study the behavior of the material.
• Motor driven threaded column for quick effortless adjustment of test height.
• Simplicity in reading because of digital readouts.
• Large effective test space enables testing of a wide range of springs.
• Robust straining frame of an extremely rigid construction.
• Safe operation ensured by means of safety devices.
• Fully enclosed and protected pressure transducer.
• RS 232 serial port to transfer data to computer for analysis/storage & evaluation.
• Manual Control and release valve operation.
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FIE Laminated Spring Testing Machine is designed to test laminated springs
and coil springs under compression and bending loads.
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| Principle of operation : |
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| Operation of the machine is by hydraulic transmission of load from the test
specimen through pressure transducer to a separately house load indicator.
The system is ideal since it replaces transmission of load through levers and
knife edges, which are prone to wear and damage. |
| Load is applied by a hydrostatically lubricated ram. Main cylinder pressure is
transmitted to a pressure transducer house 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 signals are processed by the microprocessor and load
displacement on digital read outs simultaneously. |
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| Machine Consists of : |
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| Loading Unit : |
| It consists of a "C" type rigid frame with hydraulic cylinder at its top and an
adjustable main testing table is connected to an upper cross head through
two screwed columns. This main testing table along with screwed columns
can be rapidly adjusted to test height by means of motor. A pair of trolleys is
provided on the table to take the horizontal deflection of the spring under
loading Laminated springs are tested by placing them on trolleys provided on
the table. Coil springs are tested by placing them between the compression
plates. |
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| Control Panel : |
The control panel consists of a power pack complete with drive motor, oil tank,
.control valves and electronic display unit. |
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| Power Pack : |
| The power pack generates the maximum pressure of 200 Kgf/cm2. The
hydraulic pump provides continuously non putsannq oil flow. Hence the load
application is very smooth. |
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| Hydraulic Controls : |
| Hand operated wheels are used to control the flow to, and from the hydraulic
cylinder. The regulation in the oil is infinitely variable. Incorporated in the
hydraulic system is a regulating valve, which maintains a practically constant
rate of table movement. |
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| Electronic Control Panel (Series UniversaI2001-UTE) |
| Microprocessor based panel incorporating state of art technology with
following feature. |
• Front panel membrane key board with numeric keys for data entry.
• 7 segment display to show load and compression.
• Data entry of test parameters including rupture % peak, pre-load,
module data, test data & specimen data etc. through numeric key board.
• 20 input data set storage, 50 results storage.
• Maintains data & results during power off.
• Each test facility for generating batch and statistics result.
• Printer port for dot metrics printer interface to print graph and results,
batch certificate and simple statistics printout.
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| Optional Software packages on PC |
| The Universal 2001-UTE series control panel can be hooked to any PC
using RS-232 communication port. FIE offers different exhaustive
application, Window based software packages with real time graph on PC
to enable the user to effectively evaluated different parameters. |
| The features include : |
• Real Time Graph, User friendly software.
• Extensive graphics on screen for curve plotting, magnification &
zooming.
• Software features includes Graph comparison, point tracing facility.
Different units selection for load & displacement.
• Statistical evaluation with water fall dig., Mean deviation, frequency
distribution, Skew dig., Histogram. Also calculates max. value, min.
value, Mean value,
Varience, Standard Deviation. (Other statistical
parameters on request). Selectable batch & statistical printouts.
• Evaluation of wide range of user selectable parameters such as %
elongation, % reduction in area, young's modulus, yeild stress, proof
stress etc.
• Software packages for Shear, Bend, Torsion, Rubber, Textile testing etc.
• Custom built application software to suit customer requirements. |
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| Accuracy and Calibration : |
| FIE Laminated Spring testing machines are closely controlled for
sensitivity, accuracy and calibration during every stage of manufacture.
Machine is then calibrated over each of its measuring range in accordance
with the procedure laid down in British standards 1610: 1964 |
| FIE Spring testing Machine complies with Grade "Aft of BS: 1610:1964 and
grade 1.0 of IS 1828-1975. An accuracy of ±1 % is guaranteed from 20% of
the load range selected to full load. |
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Specifications : |
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Description |
STE-10 |
STE-20 |
Maximum Capacity (kN) |
100 |
200 |
Measuring Range |
0-100 |
0-200 |
Load Resolution (20,000 counts full scale) (N) |
5 |
10 |
Load range with accuracy of measurement ±1% kN |
2-100 |
4-200 |
Resolution of Piston movement (Displacement) (mm) |
0.1 |
0.1 |
Total Size (mm) |
250x2400 |
400x2400 |
Vertical travel of table |
0-400 |
0-500 |
Distance between trolleys adjustable (mm) |
500-2150 |
650-2150 |
Pair of Compression plates diameter (mm) |
250 |
400 |
Max. distance between compression plates (mm) |
400 |
650 |
Ram Stroke |
300 |
250 |
Straining /Speeds (mm/min) (at no load) |
0-250 |
0-200 |
Connected Load |
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HP |
2 |
2 |
V |
440 |
440 |
Ø |
3 |
3 |
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