Mitech MSW20 Series Display Webster

Mitech MSW20 Series Digital Display Webster Hardness Meter

Product Overview

The Mitech MSW20 Series Digital Display Webster Hardness Tester (models MSW-20, MSW20a, MSW-20b) is a portable, high-precision device for fast and non-destructive hardness testing of aluminum alloys. Featuring a digital display, electric micro-motor, and intelligent calibration technology, this instrument simplifies on-site testing while enhancing accuracy. It eliminates the need for manual force, reduces operator error, and is especially suited for mass production environments. The MSW20 Series is widely applied in industries such as aluminum extrusion, window and door fabrication, construction, and engineering inspection.

Key Features

• Portable and easy to carry for quick aluminum hardness testing

• Digital display provides clear, accurate readings

• Simple one-button operation reduces operator skill requirements

• Electric micro-motor applies force automatically, reducing physical effort

• Built-in pressing guard improves testing accuracy

• Tool-free calibration simplifies the adjustment process

• Equipped with pre-pressing device to maintain correct vertical test angle

• Adjustable spacing between anvil and indenter allows testing of various material thicknesses

• Ideal for rapid non-destructive testing on-site or in quality control lines

Applications

• Verifying whether a workpiece has undergone heat treatment

• Detecting incorrect alloy composition in aluminum products

• Inspecting large or heavy workpieces not suitable for traditional testing

• Quality assurance in aluminum extrusion plants

• Construction material inspections, including windows, doors, and curtain walls

• Engineering quality supervision and technical inspection departments

Working Principle

The MSW20 Series uses the indentation principle to determine hardness. A spring-loaded punch makes a controlled impression on the material surface. The depth of the indentation is inversely proportional to the material’s hardness. The measured value is shown in Webster Hardness (HW) on a digital screen and can be converted into HV or HR scales as needed.

Operating Instructions

• Ensure the surface is clean, flat, and perpendicular to the indenter

• Insert the sample and press the operation button to apply force

• Read the hardness value displayed on the screen

• Avoid twisting or shifting the workpiece during testing

• Use included calibration blocks regularly to maintain accuracy

Technical Specifications

• Measuring range: 0 to 20 HW

• Accuracy: 0.5 HW

• Effective measuring range: 5 to 18 HW

• Resolution: 0.1 HW

• Hardness range: 25 to 110 HRE, 58 to 131 HV

• Tested material: Aluminum alloys (Series 1100–7075)

• Compatible models: MDW-ZJ6x, MDW-ZJ10x, MDW-ZJ15x, MDW-ZJ20x