-FOB Portable Hardness Tester-
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webster hardness tester model b manual

六月 18, 2019

W-20 series Webster Aluminum alloy metal hardness tester


A portable instrument which can perform on-site hardness test on soft metals in accordance with American Standard ASTM B647;
Used to check the result of heat treatment and determine if the mechanical performance of the workpiece is acceptable.
Suitable for testing the hardness of aluminum profiles, tubing, sheets and other shapes.
Used for testing the with long or heavy work pieces or assemblies inconvenient to be sent to the labs.
Ideal for qualification inspection on the production site; used to test aluminum profiles.
W-20, W-20a andW-20b are used to test aluminum profiles on the production site.

Advantage :

1 .Mixer is mainly used for detection of aluminium alloy profiles, pipes, plates, aluminum workpiece and other soft metal hardness.

2 .Pieces of new materials, new technology of manufacturing pressure needle, high hardness, long life, good interchangeability.

3 .Pieces of high strength of pointer, use for a long time or wrong operation is not easy bending deformation.

4 .Forging materials, surface anodic oxidation on the handle, beautiful, wear resistant, resistant to pollution.

5 .Using fine parts processing, precision of whole machine assembly, strict quality inspection. Mixer full point stability, stable point correction, pointer without “crawl”. Mixer Webster’s value can be converted to vickers hardness, rockwell and brinell hardness value, conversion and convenient. Don’t need to sample, the operation skill is not high, very suitable for hardness testing of materials at high speed, at the scene of the production

6 ..Belongs to a small, portable instrument, small volume, light weight, can be single hand operation, quick, convenient and nondestructive test material hardness. Mixer is in China’s nonferrous YS/T420-2004 and American standard ASTM B647-84 (200) .

Standard Package:


Standard hardness block

Calibration wrench

Spare indenter

Small screwdriver

Carrying case

Optional Accessories
Standard hardness blocks

Spare indenter

Calibration wrench

Dial Glass

Spare dial head

Model Selection:

Model Application range Hardness Range Specimen Dimension(mm)
W-20 Aluminum alloy 25~110HRE


Thickness 0.4-13 Inner diameter>10
W-20a Thickness 0.4-13 Inner diameter>10
W-20b Thickness 0.4-8 Inner diameter>6

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