These machines come in two basic versions.i.e.Pure Vickers and Vickers cum Brinell. Load range for pure Vickers is from 1 kg. to 120 kg and for Vickers cum Brinell, 1 kg to 250 kg
These machines are suitable for checking Vickers or Brinell Hardness of Steel and other metals.
Loads are applied with dead weights and are selectable with push buttons.
Measurement of Diagonal / Diameter of indentation is done with the help of built in optical system with with built-in micrometer scale.
After taking the indentation on work piece , objective lens is automatically swiveled in position and indentation image appears on the focussing screen fitted in front of the machine.
Loading cycle is started with Push Button in the front where-as unloading is done manually by hand lever..
All models i.e.KVM-120, KVM-120S, KVM-250, KVM-250S confirm to IS 1754 & BS 427 for Vickers & IS 2281-1983, BS 240,ASTM-E-10 for Brinell Hardness..
| Model | KVM-120 | KVM-120-s | KVM-250 | KVM-250-s |
| Load (kgf) | 5,10,15,20,30,40,50,60,100,120 (Load for Vickers) | 1,2,5,10,15,20,30,40,50,60,100 and 120 (Load for Vickers) | 5,10,15,20,30,40,50,60,100 & 120 (Load and Vickers) 15.625,31,25,62.5,187.5, 250(Load for Brinell) | 1,2,5,10,15,20,30,40,50,60,100, & 120(Load for Vicker)15.625,31,25,62.5(Load for Brinell) |
| Optical Magnifaction | 70x,140x | 70x,140x | 35x,70x,140x, | 35x,70x,140x, |
| Max. Test Height (mm) | 250 | 250 | 250 | 250 |
| Sweep of machine frame (mm) | 150 | 150 | 150 | 150 |
| Weight Approx(Kgs) | 180 | 180 | 180 | 180 |
| Dimensions(L X W X H mm) appr | 650 x 320 x 990 | 650 x 320 x 1130 | 650 x 320 x 990 | 650 x 320 x 1130 |
| Connected load | 0.1 KVA, 1 PHASE AC, 220 V, 50Hz | |||
| Load can be supplied in Newtons also Least count of Optical System 0.0005 mm | ||||