Hardness Tester, Universal Hardness Tester, Brinell Hardness manufacturer / supplier in China, offering Touch Screen Digital Hardness Tester Brinell with Conversion, Siomm Semi Automatic Macro Hardness Tester Vickers Measuring Instrument, Touch Screen Digital Vickers Brinell Hardness Testing Equipment and so on.
Jvjing Precision has great competence in producing touch screen digital hardness tester brinell with conversion as one of the leading manufacturers and suppliers of various testing equipment. Please rest assured to buy the low price equipment at a discount from our factory. And the price list and the quotation are also available if you need.
Measuring Range: HB
Standard: ISO, ASTM
Rated Voltage: 220V
Test Results: 8-650hbw
Magnification of Microscope: 20X
Instrument Throat: 120mm
Dimension(Lxwxh): 530×187×758mm (L×W×H)
Specification: CE, ISO
HS Code: 90241020
Type: Brinell Hardness Tester
Warranty: 1 Year
Calibrating Method: Standard Hardness Test Blocks
Support Language: English
Testing Force: 62.5kgf, 100kgf, 125kgf, 187.5kgf,250kgf,500kgf, 750kgf,1000kgf,1500kgf, 3000kgf
Hardness Display: LCD Display
Max Height Specimen: 220mm
Power Supply: AC220V/50Hz;AC110/V60Hz
Gross/Net Weight: 149kg/135kg
MHBD-3000T differs from like products is the close loop loading system, touch screen input methods,digital measurement indentation technology.
MHBD-3000P is a big screen and intelligent Brinell hardness testing machine, it 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 on Microscope, then the built-in computer can compute the Brinell scale and display the final testing result on LCD display automatically.
Our brinell hardness tester adopts the load cell to replace the traditional quality weight, this innovative design makes the instrument more accurate.
Brinell Measuring System
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 theother 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.
When selecting a hardness tester for your application, it is important for you to consider the following:
A, Choose the correct test method based on the application.
Plan to use the highest test force and largest indenter possible. Consider the effects of the shape and dimensions of your test sample.
B, Verify the test results meet your requirements for accuracy and repeatability. There are significant differences between levels of performance within each classification of tester. A difficult job on one tester could be very simple and fast on another.
Answer these key questions:
1, What kind of hardness scale to be used?
2, What is the material to be tested, and is this material suitable to the type of test method you are considering?
3, How large is the part, component or specimen to be tested?
4, Is the test point difficult to reach?
5, What is the quantity of testing that will be done?
6, How accurate does your test result need to be?
7, What is your budget?
8, What is the required return on investment and do you have ways to measure reductions in costs- yields, throughput, operator efficiency?
9, What testing problems have you experienced in your current method?
10, How knowledgeable are the users of the tester?
|Product Name||Digital Brinell Hardness Tester|
|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||220mm|
|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 < HBW≤225||≤± 2.5 %||≤ 3.0 %|
|HBW > 225||≤± 2.0 %||≤ 2.5 %|
|Standard hardness block||2 pieces|
|Hardness tester||1 piece|
|20X Omron digital measuring eyepiece||1 piece|
|Φ2.5 harden alloy indenter||1 piece|
|Φ5 harden alloy indenter||1 piece|
|Φ10 harden alloy indenter||1 piece|
|big test table||1 piece|
|medium test table||1 piece|
|“V” test table||1 piece|
|safety fuse||1 piece|
|power cable||1 piece|
|accessory box||1 piece|
|dust-proof cover||1 piece|
|manual instruction||1 piece|
|certificate of quality||1 piece|
|warranty card||1 piece|
|hardness conversion table||1 piece|