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Small Size Electronic Hardness Tester , Hardness Testing Equipment For Raising Qualification MW-B75

Categories Digital Hardness Tester
Brand Name: MITECH
Model Number: MW-B75
Certification: CE GOST
Place of Origin: China Beijing
MOQ: 1piece
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 500Unit/Units per month
Delivery Time: after receiving payment
Packaging Details: standard export carton
Measurement Range: 0~20HW
Accuracy: 0.5HW
Accurate Measurement Range: 5~18HW
Test material: Aluminum Alloy(1100~7075 Series)
Hardness Range: 25~110HRE, 58~131HV
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Small Size Electronic Hardness Tester , Hardness Testing Equipment For Raising Qualification MW-B75

Mitech digital hardness tester MW-B75 easy for use, can test rapidly, and the hardness value can be read out directly


Overview


MW series aluminum Webster tester is also called clamp type hardness tester, They are divided into MW, MW-20a, MW-20b three types, they are light and portable can be hold by one hand, do not need sample when testing, without high skill requirements. It can do fast NDT test of workpiece on site and meet the needs of quality control and qualified rate. It is widely used in production test, acceptance inspection and products quality inspection of aluminum industries and many companies of windows, door and curtain wall, as well as in engineering quality inspection and technical supervision departments. It is a necessary device in raising qualification rate and saving cost.


Working Principle


MW series Webster hardness tester adopts indentation principle. Under pressure, the indentation is inversely proportional to the material hardness. HW is short for hardness of Webster, when the value is 16, it means the hardness is 16HW. The value can be read on the dial and can be changed into HV, HR. If the sample hardness is out of range, the needle will point at 20, if the range is too low, the needle will not move and it will stay at 0.


Technical Parameters


  • Measurement Range: 0~20HW
  • Accuracy: 0.5HW
  • Accurate Measurement Range: 5~18HW
  • Hardness Range: 25~110HRE, 58~131HV
  • Test material: Aluminum Alloy(1100~7075 Series)

Configuration


Standard config

ItemParts NameQTYRemarks
1Main unit1
2Standard hardness block1
3Spare stylus1
4Special Wrench1
5Screwdriver1
6User’s manual1
7Handle case1
Optional config8Spare stylus1
9Standard hardness block1
10Gauge glass1

Application


MW series webster hardness tester can be classified into four different types according to alloy content and hardness range. Except for MW-B92, each one has three kinds according to size of material.User should choose the right type to measure in case that you may damage the instrument.

Table 1-1 Scope of application table

ItemModelMaterialHardness rangeSpecimen Size/mm
1MW-20Aluminum alloy

25~110HRE

58~131HV

Thickness0.4-6 Inner diameter>10
2MW-20aThickness0.4-13 Inner diameter>10
3MW-20bThickness0.4-8 Inner diameter>6
4MW-B75Hard or semi-hard copper alloy, super hard aluminum alloy(2024/6064/7075)63~105HRFThickness0.8-6 Inner diameter>9.5
5MW-B75aThickness0.8-13 Inner diameter>24
6MW-B75bThickness0.8-6 Inner diameter>6
7MW-BB75Pure copper, electrolytic copper, soft copper alloy (copper, etc.)18~100HREThickness0.8-6 Inner diameter>9.5
8MW-BB75aThickness0.8-13 Inner diameter>24
9MW-BB75bThickness0.8-6 Inner diameter>6
10MW-B92Stainless steel, low carbon steel

48~100HRB

90~353HV

Thickness0.4-6 Inner diameter>10

Note: For materials with a thickness less than 0.88mm, the use would meet an "anvil effect". At this time a small trace will appear on the back of the measured material. this "anvil effect" will cause measurement error, the larger the traces, the greater the error; the more soft the material, the thinner the thickness, this error will be greater .The For thinner materials, it is helpful to reduce the error caused by the "anvil effect" by superimposing the two materials with the same material.

China Small Size Electronic Hardness Tester , Hardness Testing Equipment For Raising Qualification MW-B75 factory
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