Electronic Brinell Hardness TesterDetailed product description：

DHB-3000 electronic Brinell hardness tester

Brinell hardness test is the test method with the largest indentation among all hardness tests. It can reflect the comprehensive properties of materials and is not affected by microsegregation and uneven composition of the sample structure. Therefore, it is a high-precision hardness test method. Widely used in industrial fields such as metallurgy, forging, casting, untempered steel, and non-ferrous metals, laboratories, universities, and research institutions.

Main Features
The DHB-3000 digital Brinell hardness tester is an electromechanical integrated product with precision mechanical structure and microcomputer controlled closed-loop system, and is also one of the most advanced Brinell hardness testers in the world today. The instrument eliminates weights and adopts electric loading and unloading test force, which is fed back by a pressure sensor with a precision of 0.5 ‰. It is controlled by the CPU and can automatically compensate for the loss of test force during the test. The test force and holding time can be directly selected and inputted on the touch panel, with reliable repeatability, accurate readings, and convenient operation.

Main technical parameters

Measurement range: (8-650) HBW
Test force: 612.9 N（62.5Kgf）、980N(100Kgf)、1226N(125Kgf)、1839N(187.5Kgf)、2452N(250Kgf)、4900N(500Kgf)、7355N（750Kgf）、9800N(1000Kgf)、14700N(1500Kgf)、29400N(3000kgf)
Indication accuracy
Hardness Range (HBW)	Maximum allowable error of indication%	Repeatability of indication%
≤ 125	± 3	≤ 3.5
125＜HBW≤225	± 2.5	≤ 3.0
＞ 225	± 2.0	≤ 2.5
Maximum allowable height of sample: 225mm
Maximum distance from the center of the pressure head to the machine wall: 135mm
Magnification of reading microscope: 20x
Minimum division value of reading microscope drum: 0.005mm
Power supply voltage: AC220V
Main attachments: one large, one small, and one V-shaped test bench each
One hard alloy steel ball each with a diameter of 2.5mm, 5mm, and 10mm
20 times reading microscope
Two standard hardness blocks