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ROCKWELL HARDNESS TESTING MACHINE
Rockwell Hardness Tester SRI RAS PC
To measure Rockwell Hardness directly on machine where presently Rockwell-Microscope is used. This avoids eye straining of operator on producing testing. In addition it gives far better repeated accuracy. High-low limits selections enables operator easy acceptance / rejection of components Can be connected to Laptop or Desktop PC. Easy to carry anywhere and handy for use with easy setup.
Rockwell Hardness Tester SRI RAS
- To measure Rockwell Hardness directly on machine where presently Rockwell-Microscope is used. This avoids eye straining of operator on producing testing. In addition it gives far better repeated accuracy. High-low limits selections enables operator easy acceptance / rejection of components
- Can be connected to Laptop or Desktop PC. Easy to carry anywhere and handy for use with easy setup.
Features
SRI Testers Models SRI RAS, SRI RASM, SRI RAB-1, SRI RAB-250, SRI TWIN are manually operated. All these models are suitable for testing hardness of metals & alloys of all kinds hard or soft, whether flat, round or irregular in shape. These testers are simple in design & easy to operate, yet sensitive & accurate. Various models from the wide range are suitable for Engg. Colleges, laboratories, toolroom, inspection departments, factories etc. These testers strictly conform to IS: 3804-1988, BS: 891 parts 1&2, ASTM:E18 for Rockwell Test, IS: 2281-1983, BS: 240, ASTM:E10 for rockwell Test & IS: 5073-1988, ASTM:E18 for Rockwell Superficial Test.
- MODEL : SRI RAS : Automatic load selection with automatic zero setting dial gauge. Manual Operation.
- MODEL : SRI RASM : Similar to 'SRI RAS1 but motorised model. Semi-automatic operation for production testing. Drive motor single phase 230V 50 cycles..
Principle
Rockwell & Rockwell superficial tests consists of forcing an indentor (Diamond or Ball) into the surface of a test piece in two steps i.e. first with preliminary test force and thereafter with additional test force & the measuring depth of indentation after removal of additional test force (Remaining preliminary test force active) for measurement or hardness value. OPERATION : For Rockwell & Rockwell Superficial
OPERATION :For Rockwell & Rockwell Superficial Test :
In case of 'RASN' series machines for Rockwell or Rockwell Superficial Test a preliminary test force in first applied & then indicator is automatically set for zero. Quickly thereafter & additional test force is applied without removing the preliminary test force. When the penetration is stabilized, the additional test force is removed & the hardness number is shown directly on the indicator.
ROCKWELL/ROCKWELL COMBINED SYSTEM MODEL
SRI RAB-1 : Automatic load selection with automatic zero setting dial gauge. Facility for rockwell Tests with 187.5 kgf. load with 2.5 mm ball indentor, additional load 250 kgf. with 5 mm ball Indentor for testing hardness of non- ferrous metals. Manual Operation.
MODEL : SRI RAB-250 : Similar to 'SRI RAB-11 but bigger capacity Diamond Holder is guided in a set of two bail cage, which enables testing of small pins having dia. less than 6 mm (upto 3mni dia)
ROCKWELL/ROCKWELL SUPERFICIAL COMBINED SYSTEM
MODEL : SRI TWIN : Manual load selection with automatic zero setting dial gauge. Manual Operation. Diamond Holder is guided in a set of two ball cage, which enables testing of small pins having dia. less than 6 mm. (upto 3 mm dia.)
For rockwell Test
The operation is exactly same as above. However, the diameter of impression is measured out side of machine by rockwell microscope. rockwell hardness number is found out by referring corresponding hardness tables showing hardness number against di. of indentation for specified ball diameter and test force.
- Model RASN
- Model RASN (M)
- Model RASN (E) : (Digital)
| MODEL | UNIT | SRIRAS | SRIRASM | SRIRAB-1 | SRIRAB-250 | SRITWIN |
| Loads | Kgf. | 60,100, | 60, 100, | 60,100, 150, | 60, 100,150, | 15, 30,45, (Rockwell |
| 150. | 150. | 187.5, 250. | 187.5, 250 | Superficial) 60,100,150 (Rockwell) | ||
| Initial Load | Kgf. | 10 | 10 | 10 | 10 | 3(Rockwell Superficial) & 10 (Rockwell) |
| Max. Test Height | mm. | 230 | 230 | 230 | 295 | 295 |
| Depth of Throat | mm. | 133 | 133 | 133 | 150 | 150 |
| Max. Depth of elevating | mm. | 240 | 240 | 240 | 310 | 310 |
| screw below base | ||||||
| Size of Base (Approx) | mm. | 171x423 | 171x423 | 171x423 | 210x470 | 210x470 |
| Machine Height | mm. | 635 | 635 | 635 | 845 | 845 |
| Net. Weight (Approx) | Kg. | 75Kg. | 75 Kg. | 75 Kg. | 137 Kg | 126 Kg. |
- Suitable for Rockwell Tests.
- Manual operated.
- Priliminary Test Force - 98.7N (10 kgf.)
- Additional Test Force - 490.3, 882.6,1373N (50, 90,140 kgf.)
- Total Test Force - 588.4, 980.7,1471N (60,100,150 kgf.)
- Test Force selection by external dialing.
- Auto zero setting dial gauge.
- Suitable for Rockwell Tests.
- Motorised for automatic operation cycle (load / dwell / unload)
- Additional Test Force - 490.3, 882.6,1373N (50, 90,140 kgf.)
- Total Test Force - 588.4, 980.7,1471N (60,100,150 kgf.)
- Test Force selection by external dialing. Auto zero setting dial gauge.
- Digital Hardness Tester for Rockwell tests. Motorised for automatic operation cycle i.e. load / dwell / unload.
- Preliminary Test Force - 98.07N (10 kgf.)
- Additional Test Force - 490.3, 882.6, 1373N (50, 90, 140 kgf.)
- Total Test Force - 588.4, 980.7, 1471N (60, 100, 150 kgf.)
- Test Force selection by external dialing.
- Set position with LED bar indicator for easy operation.
- Key board entry through reliable membrance switches for scale / GO-NOGO / dwell time selection.
- Large size scale display for easy reading with 0.1 Rockwell resolution.
- Parallel output for connecting dot matrix printer to get results indicating serial number of tests, hardnes scales, hardness value and high / good / low indication
- Regular Computerised Machine.
- Semi-automatic operation.
- Fully Automatic Machine means loading / unloading and results will get automatically.
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