Features: 

SHB-3000D is a half automatic and intelligent Brinell hardness testing machine, it adopts the load cell to replace the traditional quality weight, this innovative design makes the instrument more accurate.

SHB-3000D selection of testing force and dwell time is controlled and monitored on the front panel, it is automatic during the process of loading, dwell and unloading.

SHB-3000D adopts digital Brinell microscopes with adjustable LED illuminator, it doesn't need the operator to read the detail length of indentation, it only needs operator to aim the D1, D2 diagonal of indentation and press the length key twice above the Microscope, then the built-in computer can compute the Brinell scale and display the final testing result on LCD display automatically.

The Brinell hardness test method consists of indenting the test material with a 10 mm diameter 
hardened carbide ball subjected to a load of 3000 kg. For softer materials the load can be reduced 
to 1500 kg or 500 kg to avoid excessive indentation. 

The full load is normally applied for 10 to 15 seconds in the case of iron and steel and for at least 
30 seconds in the case of other metals. The diameter of the indentation left in the test material 
is measured with a low powered microscope. The Brinell harness number is calculated by dividing 
the load applied by the surface area of the indentation.

The diameter of the impression is the average of two readings at right angles and the use of a Brinell 
hardness number table can simplify the determination of the Brinell hardness. A well structured Brinell 
hardness number reveals the test conditions, and looks like this, "75 HB 10/500/30" which means that 
a Brinell Hardness of 75 was obtained using a 10mm diameter hardened steel with a 500 kilogram 
load applied for a period of 30 seconds. 

On tests of extremely hard metals a tungsten carbide ball is substituted for the steel ball. Compared to 
the other hardness test methods, the Brinell ball makes the deepest and widest indentation, so the test 
averages the hardness over a wider amount of material, which will more accurately account for multiple 
grain structures and any irregularities in the uniformity of the material. This method is the best for 
achieving the bulk or macro-hardness of a material, particularly those materials with heterogeneous structures.  

Specifications:
Product Name	Digital Brinell Hardness Tester
Model	SHB-3000D
Code#	831-121
Testing Force	62.5Kgf, 100Kgf, 125Kgf, 187.5Kgf, 250Kgf,
	500Kgf, 750Kgf, 1000Kgf, 1500Kgf, 3000Kgf
	612.9N, 980N, 1226N, 1839N, 2452N,
	4900N, 7355N, 9800N, 14700N, 29400N
Testing Range	(8~650) HBW
Hardness Display	LCD Display
Magnification of Microscope	20x Mechanic Microscope
Max. Height Of Specimen	225mm
Instrument Throat	135mm
Power Supply	AC220V/50Hz;110V/60Hz
Dimension(LxWxH)	893 x720 x747mm
Gross/Net Weight	160Kg/130Kg
Execution Standard	ISO 6506,ASTM E10 – 12,JIS Z2243,GB/T 231
Accuracy of Brinell Hardness Testing
Hardness Range	Max. Tolerance	Repetition
HBW≤125	≤± 3.5%	≤3.5%
125	≤± 2.5%	≤3.0%
HBW>225	≤± 2.0%	≤2.5%
Standard Delivery:
Standard Delivery	Code#	Mr. Marshall Zheng Tel: 86-769-23184144 Contact to this supplier Related Search Hardness Tester    Shore Hardness Tester    Rockwell Hardness Tester    Digital Printer    Digital Cable Tester    Digital Alcohol Tester    More>> Find more related products in following catalogs on Hisupplier.com Health & Beauty >> Perfume & Fragrances Related Products bamboo perfume bottle with perfume sprayer bamboo perfume bottle with perfume sprayer × Company Info DongGuan Sinowon Precision Instrument Co., Ltd. [China (Mainland)] Business Type:Manufacturer City: Dongguan Province/State: Guangdong Country/Region: China (Mainland) View Contact Details You May Like: prev High Sensitive LCD Monitor Digital Vicke... Industrial Electronic Vickers Hardness T... 150mm Z Axis Travel Range Measuring Micr... Automatic Metallographic Mounting Press ... Industrial Metallographic Cutting Machin... Manual / Autiomatic Precision Metallurgi... Achromatic Objective Laboratory Metallur... 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