Product name: HBRVU - 187.5 Brinell Rockwell & Vickers Optical Hardness Tester

Specifications

MODEL

HBRVU187.5

Type

Brinell, Rockwell & Vickers Optical

Preliminary test force (N)

98.07

Total test force for Rockwell hardness (N)

588.4, 980.7, 1471

Total test force for Brinell hardness (N)

306.5, 612.9, 1839

Total test force for Vickers hardness (N)

294.2, 980.7

Test range for Rockwell hardness

20~67 HRC / 30~100 HRB / 70~85 HRA

Test range for Brinell hardness

4~450 HB

Test range for Vickers hardness

14~1000 HV

Magnification of microscope x

37.5x, 75x

Min. calibrated value of micro-measuring drum wheel

0.004mm@37.5x, 0.002mm@75x

Max. height of specimens (mm)

160 for Rockwell, 100 for Vickers, Brinell

Max. depth of specimens (mm)

200

Power supply

AC220V, 50Hz

Dimension (DxWxH) (mm)

560 x 260 x 760

Net weight (kg)

90

Standard Package

MODEL

HBRVU187.5

Main machine

1

Accessory box of main apparatus

Indenter

Conical angle 120 degree Diamond Rockwell indentor x 1
Pyramidal angle 136 degree Diamond Vickers x 1
Steel ball indenter 1.588mm x 1
2.5mmx1, 5mm x 1

Testing table

Large leveled / medium leveled /V shaped, 1 for eac

Standard Rockwell hardness block

55~65 HRC x 1
25~35 HRC x 1
75~95 HRB x 1

Standard Brinell hardness block

200 +/- 50 HB 2.5/187.5/30 x 1

Standard Vickers hardness block

450 +/- 50 HV 30 x 1

Weights

5

Fuse

7A x 2

Lamp

6V 21 CP x 2

Power supply plug

1

Operation instructions

1

Attachment box of microscope

Microscope

1

Micro-eyepiece

15x x 1

Objective

2.5x x 1, 5x x 1

Sliding test platform

Pyramidal platform x 1, V shaped platform x 1

Lamp shade

for external lighting x 1, for internal lighting x 1

Lamp

6V, 5W x 4

Type of Test

Primary Test Force (N)

Total Test Force (N)

Hardness Scale

Indenter

Measuring Installation

Examples of Measuring and Testing Materials

Rockwell hardness test

98.07

588.4

HRA

diamond cone indenter

optical measurement indicating mechanism

hard alloy
carbon carburizing steel

1471

HRC

quenched steel
adjustable quality steel
hard cast iron

980.7

HRB

1.588mm steel ball indenter

mild steel
aluminium alloy
copper alloy
forgeable cast iron

Brinell hardness test

306.5 / 612.9 / 1839

-

HB

2.5mm, 5mm steel ball indenter

microscope

non-ferrous metal
cast iron
soft alloy
plastics

Vickers hardness test

294.2 / 980.7

-

HV 30

diamond angle conical indenter

microscope

the superficial hardness of metallic alloy carburized layer
small type thin components