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Vickers Type Hardness Testers

Vickers Type Hardness Testers
KVM-250
SALIENT FEATURES

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
 
GENERAL :
1.
These machines are suitable for checking Vickers or Brinell Hardness of Steel and other metals.
2.
Loads are applied with dead weights and are selectable with push buttons.
3.
Measurement of Diagonal / Diameter of indentation is done with the help of built in optical system with with built-in micrometer scale.
4.
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.
5.
Loading cycle is started with Push Button in the front where-as unloading is done manually by hand lever.
6.
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.
 
Technical Specifications
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
 
Measuring Range Possible w.r.t selected Optical magnification 1) 0-3.2 mm on 35X Magnification
2) 0-1.6 mm on 70X Magnification
3) 0-0.8 mm on 140X Magnification
 
STANDARD ACCESSORIES
 
Model KVM - 120 KVM - 120-S KVM-250 KVm-250-s
Flat table of 100 mm Die 1 NO. 1 NO. 1 NO. 1 NO.
'V' table for specimen - 6 to 80 mm Dia 1 NO. 1 NO. 1 NO. 1 NO.
Vickers Diamond Indentor 1 NO. 1 NO. 1 NO. 1 NO.
2.5 mm Ball Indentor - - 1 NO. 1 NO.
5.0 mm Ball Indentor - - 1 NO. 1 NO.
Vickers hardness Test Plate 1 NO. 1 NO. 1 NO. 1 NO.
Brinell Hardness Test Plate - - 1 NO. 1 NO.
Electrical Cord 1 NO. 1 NO. 1 NO. 1 NO.
Instruction manual 1 Book 1 Book 1 Book 1 Book
2.5 mm Balls - - 5 Nos. 5 Nos.
5 mm Balls - - 5 Nos. 5 Nos.