FIE Compression Testing Machine is designed to test materials and other materials under compression, bending, transverse and shear loads. Hardness test on metals can also be conducted.
Principal of Operation :
Operation of the machine is by hydraulic transmission of load from the test specimen to 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 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 house in the control panel. The transducer gives the signal to the electronic display unit, corresponding to the load exetted by the main ram. Simulteniously the digital electronic fitted on the straining unit gives the mechanical displacement to the electronic display unit. Both the signals are processed by the microprocessor and load displacement on digital readouts simulteniously.
1. Straining Unit :
It consists of a hydraulic cylinder and a table coupled with the ram of hydraulic cylinder, mounted on robust base. The cylinder and the ram are individually lapped to eliminate friction. The cross-head is connected to two screwed columns and is driven by a motor, for rapid adjustment of test height.
An elongation scale with a minimum graduation of 1.0 mm, is provided to measure the deformation of the specimen.
Compression, transverse, bending, shear and hardness tests are conducted between the lower cross head and the table.
2. Control Panel :
The control Panel consists of a power pack complete with drive motor and an oil tank, control valves and electronic display unit.
A) Power Pack :
The power pack generates the maximum pressure of 200 kgf/cm2. The hydraulic pump provides continuously no pulsating oil flow. Hence the load application is very smooth.
B) Hydraulic Controls :
Hand operated wheels are used to control the flow to and from the hydraulic cylinder. The regulation of oil flow is infinitely variable. Incorporate in the hydraulic system is a regulation valve, which maintains a practically constant rate of table movement.
C) Electronic Control Panel (Series Universal 2001-UTE):
Microprocessor based panel incorporating state of art technology with following features,
Front panel membrane key board with numeric keys for data entry.
7 segment display to show laod and compression.
Data entery 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.
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 package with real time graphon PC to enable that user to effectively evaluated different parameters.
The features include :
Real time graph, user friendly software.
Extensive graphics on screen for curve plotting, magnification and zooming.
Statistical evaluation with water fall dig. mean deviation, frequency distribution, skew dig. histogram also calculates Max. value, Min value, Mean value, Variance,
Standard Deviation (Other statistical parameters on request). Selectable batch statistical printouts.
Accuracy & Calibration :
All FIE Electronic Universal Testing Machines are closely controlled for sensitivity, accuracy and calibration during every stage of manufacture. Every machine is then calibrated over each of its measuring ranges in accordance with the procedure laid down in BS : 1610 and IS : 1828 : Part 1 : 1992 , Electronic Universal Testing machine comply with the grade "A" of BS : 1610 part 1 : 1992 and lass 1 of IS-1828-Part-1 : 1992 an accuracy of + 1% is guranted from 2% to 100% of the capacity of machine below 20% of the selected range, maximun permissible error is 0.2% of the full load range.
|Model||CTE 50||CTE 100||CTE 200||CTE 300||CTE 500|
|Maximum capacity (kN)||500||1000||2000||3000||5000|
|Measuring Range (kN)||0-500||0-1000||0-2000||0-3000||0-5000|
| Load resolution in N
(20,000 counts full scale)
| Load range with accuracy of measurement + 1.0% (kN)
form 2% to 100% capacity of M/c
|10 to 500||20 to 100||40 to 2000||60 to 3000||100 to 5000|
| Maximum Clearance for compression test at fully
descended working piston (mm)
|Clearance between column (mm)||390||390||530||650||650|
|Ram stroke (mm)||100||100||150||150||250|
|Straining piston speed mm/min (at safe load)||60||30||30||30||18|
| For Compression test : Upper & Lower
Compression plates of diameter (mm)
|Motor for oil pump (3ph, HP)||1HP||1HP||3HP||3HP||3HP|
|Motor for Cross head (3ph, HP)||0.5HP||1HP||2HP||3HP||3HP|
Special Accessories :
These include load stabilizer, Brinell test attachment, Bend Test attachment and a wide range of accessories offered on request at additional cost.
It is recommended that machines be erected on a foundation. Details on foundation can be given on request.
FIE reserves the rights of change in the above specifications due constant improvement in design. The dimensions given above are all approximate.