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HomeProductsBench Hardness Tester > Digital Vickers Hardness Tester TH720/721 Closed-loop control system
  • Product Name: Digital Vickers Hardness Tester TH720/721 Closed-loop control system

TH720/721 is a powerful digital vickers hardness testing machine with closed-loop control system. The measurement is extremely easy and accurate. 

Features

● New high-tech product with precise mechanical and photoelectrical technology

● Equipped with a digital microscope and cold light source, it shows the measuring method, test force, indentation length, hardness value, dwell time and the times of measurement.

● Especially suitable for testing the hardness of small, thin and fragile material specimen.

● Closed-loop control system: CPU control test force to load, dwell and unload, with high accurate pressure transducer sense feedback, the loss of test force automatically compensated.

 

Standard Delivery

 

Optional Accessory

Largest testing table

1

CCD measuring device

V shape testing table

1

Knoop indenter (for TH720)

Screw drivers

2

 

Horizontal regulating screws

4

 

Level

1

 

Power cable

1

 

10× digital micro lens

1

 

Vickers hardness blocks

2

 

Repair fuses (1A)

2

 

TIME certificate

1

 

Warranty card

1

 

Instruction manual 

1

 

 

Technical Specification

Type

TH720

TH721

Testing Force

N

4.903, 9.807, 19.61, 24.52, 29.42, 49.03, 98.07, 196.1, 294.2

9.807, 19.61, 24.52, 29.42, 49.03, 98.07, 196.1, 294.2, 490.3

KGF

0.5, 1, 2, 2.5, 3, 5, 10, 20, 30

1, 2, 2.5, 3, 5, 10, 20, 30, 50

Carriage Control

Loading/ dwell/ uploading (automatic)

Amplification of the Microscope

100x, 200x

Dwell Time

(0-60)s

Min. Graduation Value of the Testing Drum Wheel

0.125μm

Testing Field

1HV-2967HV

Lens/Indenter switch

with Hand Turret

Max. height of the specimen (mm)

180

Max. width of the specimen (mm)

130

Light Source

Cold light source

Power Supply

110V/220V, 60/50Hz

Dimensions (mm)

530x225x630

No.28 Shangdi West Road, Haidian District, Beijing City, China

+86-010-62966798  

+86-010-62985475           +86-010-62980728

export@timegroup.com.cnheyuanyuan@timegroup.com.cn