| 1. |
Description |
Electro-Mechanical type Touch screen flexural testing machine intended to be used for breaking strength and modulus of rupture for ceramic & vitrified tiles and other tiles up to 800x1600mm (80X160cm) size and Thickness up to 20mm with automatic pace rate control / load rate controlled. |
| 2. |
Applicable standards |
As per IS 13630 (Part 6), ISO 1045 (Part 4), IS 1237, etc. |
| 3. |
Load frame, Flexural arrangement & Drive System |
| a) Load frame | Shall be of chrome plated load bearing capacity of more than 10kN. |
| b) Load ranges | 0 -10 kN (10000N) |
| c) Resolution | 0.1 N or better |
| d) Accuracy | < ± 1% of the measuring load |
| e) Stroke (Movement of loading head) | 50mm (min) preferably |
| f) Pace rate Control | Through Servo drive Yaskawa motor speed control or movement of control ranging from 1 mm/min to 10 mm /min free & stepless control. |
| g) Digital display | Suitable touch screen display shall be provided for displaying real time load, stress, load at break etc. |
| h) Rollers | All the three rollers one central and two side rollers shall be more than 1600mm length and 30 mm dia. (20mm steel rod covered with 5mm thick rubber lining). The rollers shall be self aligning type as per the requirements of IS 13630(Part 6). |
| i) Rubber lining | Shall be 50mm thick and having hardness of 500 ± 5 IRHD |
| j) Span between rollers | Shall be adjustable (freely) without steps between 180mm to 800mm centre to centre for rollers. As per requirements of IS 1237 (through ball bearing rail guides) |
| k) Space between columns | 800 mm |
| l) Displacement of head | Range(+/-)100mm |
| m) Emergency stop button | Emergency shutdown button shall be available at the convenient |
| n) Electric supply | Single Phase /230V, 50 HZ |
| o) Other provisions | Auto stop after sample failure, guard for safety of operator against failure of sample. The complete setup shall be coated with corrosion resistant coating. The entire setup shall be quite and vibration free during operation. |
| 4. |
Load cell |
| a) Capacity | 10 KN(min) with overload protection up to 1.5 time the rated capacity of load cell. |
| b) Accuracy | ± 1% or better for entire range. |
| c) Type | Compression type load cell |
| d) Mode | Static |
| e) Non-linearity | ± 0.05 of reading |
| 5. |
Software |
| A. | Simple and user friendly, compatible to all Indian standards and other relevant international standards. |
| B. | Software validation certificate shall be provided. |
| C. | Shall be capable of controlling all operational parameters. |
| D. | Data processing and report generation facility shall be provided |
| E. | Facility to store data with graphs and test results with option to print data |
| F. | Licensed version of all the necessary software & operating system shall be provided. |
| 6. |
Marking |
The machine and its accessories shall suitably marked for identification |
| 7. |
Certificate |
Necessary calibration certificate conforming to the requirements of ISO/IEC 17025:2017 with valid traceability shall be provided. |
| 8. |
Safety of Machine |
Machine should have safety devices for protection against overload ,travel of cross head, electrical safety etc. |
