Mitech MW-B92 Webster Hardness Tester
Brand: Mitech
Model: MW-B92
Measuring Range: 0–20 HW
Resolution Accuracy: 0.1 HW
Main Unit Weight: 0.5 kg
Package Dimensions: 29.5 × 21.5 × 12 cm
Total Weight: 1.5 kg
Product Overview
The MW-B92 is a high-precision Webster hardness tester from Mitech’s MW series, designed for fast, portable, and non-destructive hardness testing of aluminum and soft alloys. Featuring a clamp-type design and handheld operation, this model delivers reliable performance in quality control, production monitoring, and acceptance testing. It is widely used across aluminum processing industries, including the manufacturing of aluminum doors, windows, curtain walls, tubes, and decorative materials.
With enhanced resolution (0.1 HW), the MW-B92 provides more precise readings, making it an essential tool for professionals who demand accuracy and efficiency on-site or in the lab.
Functions & Applications
Surface hardness testing of aluminum extrusions and profiles
Quality control in manufacturing of doors, windows, and curtain walls
Hardness testing in decorative and structural aluminum works
Production and inspection of aluminum tubes, rods, sheets, and other products
Processing checks in industries such as tourism, sporting goods, and stationery manufacturing
Working Conditions
The sample surface must be clean, oil-free, and free from sand or dirt to ensure accuracy
Any coatings or paint should be removed before measurement (e.g., via sanding or solvent)
Avoid usage in damp environments or where corrosive gases or heavy vibration are present
This model is suitable for materials with varied thickness, but caution is needed for materials thinner than 0.88 mm due to the “anvil effect”
For very thin materials, stacking samples of the same material can reduce measurement error
Instrument Features
High resolution (0.1 HW) for precise readings
Durable construction: corrosion-resistant after 4 hours in 5% saltwater and passes 100 drop tests from 0.5 m
Compact and lightweight: easily operated with one hand
Non-destructive testing — no need to cut or alter the workpiece
User-friendly: no high-skill operation required, ideal for use on production lines
Flexible: can test different aluminum shapes and thicknesses
Includes calibration blocks to support ongoing accuracy
Separated handle and display design ensures clear visibility of readings
Operating Instructions & Notes
Insert the sample between the anvil and the indenter, then press down the handle until resistance is felt
Read the value once the pointer stabilizes
Avoid twisting or moving the sample during testing to prevent errors
For thin materials, an impression may appear on the backside — this “anvil effect” may introduce measurement deviations
When testing thin, soft materials, stack two samples of the same type to minimize this error
