These machines come in three basic versions i.e. Manually operated models, Hydraulic loading Type Models and Hydraulic loading Type Models with built-in Optics, i.e. Optical type Model.
These machines are economic and very useful for the application where test volumes are low as few samples per day or per shift. Loading being manual, it does not need any electric supply.
Krystal hardness Testers of KB- 3000 (J) series are designed and developed after years of experience in this field. All models are manufacturerd under strcit quality control
All these models are suitable for testing hardness of Metals and alloys of all kinds.
All types of shapes, i.e.Round, Flat, and other irregular shapes like castings etc. can be tested on these machines. All relevant fixtures can also be supplied.
These Testers are simple in design, easy to operate and maintain.
These machines confirm to ASTM - E 10, BS 10003 - 2 and IS 2281 - 1983
| Model | KB-120-s | KB 3000-H | KB 3000-o | |
| Loads | kgf | 500,750,1000,1500,2000,2500,3000 | 500 to 3000 in stages of 250 | 500 to 3000 in stages of 250 |
| Pre Load | Kgf | NIL | 250 | 250 |
| Max. Test Height | mm. | 250 | 410 | 365 |
| Depth of Throat | mm. | 150 | 200 | 200 |
| Size of Base | mm. | 255 X 495 | 370 X 670 | 400 X 720 |
| Machine Height | mm. | 860 | 1125 | 1220 |
| Nett Weight | Kg. | 210 | 450 | 500 |
| Drive Motor | HP | - | 0.33 | 0.33 |
| Main Supply | V/cps/ph | - | 400-440/50/3 | 400-440/50/3 |