These machines come in three basic versions.i.e.Pure rockwell models,Rockwell cum Rockwell Superficial models and Rockwell cum Brinell models.
Krystal hardness Testers are designed and developed after years of experience in this field.All models are manufactured under strict quality control at all manufacturing stages.
All these models are suitable for testing hardness of Metals and alloys.
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.
All Krystal make hardness testers meet relevant National and International standards like BS 819 part I & II, ASTM- E18, ASTM - E10 etc.
| Model | k, KA, KAS0 | KAB | KAB -I | KAB-250 |
| Initial load kgf | 10 | 10 | 10 | 10 |
| Max.test height mm | 225 | 225 | 225 | 290 |
| Depth of throat mm | 130 | 130 | 130 | 150 |
| Max depth of elevating screw below base mm | 260 | 260 | 260 | 310 |
| Size of base mm | 165 x 425 | 165 x 425 | 165 x 425 | 210 x 510 |
| Machine height (Approx)mm | 650 | 650 | 650 | 845 |
| Net Weigh(Approx.) kg | 65 | 65 | 70 | 125 |