Mitech MH600 Leeb hardness tester

Mitech MH600 Portable Leeb Hardness Tester

Product Overview

The Mitech MH600 Portable Leeb Hardness Tester is a compact, high-performance instrument designed for on-site metal hardness testing. Utilizing the Leeb rebound method, it provides fast, accurate hardness readings across multiple hardness scales, including HL, HB, HRC, HRB, HRA, HV, and HS. The MH600 features a rugged IP65-rated housing, making it resistant to oil, dust, and corrosion, making it ideal for use in tough industrial environments.

Equipped with a high-resolution color TFT LCD, multi-point calibration, and automatic test direction recognition, this device delivers precise and user-friendly operation. It supports data storage for up to 500 test series and enables communication via USB for data transfer and reporting. Its wide range of applications makes it suitable for inspection, failure analysis, and material identification in manufacturing, fieldwork, and quality control environments.

Key Features

• Portable and compact design with a durable ABS plastic body

• High-resolution color LCD for clear readings under all lighting conditions

• IP65 protection grade for resistance to dust, water, and oil

• Multi-point and single-point calibration options

• Automatic recognition of test direction

• Conversion between multiple hardness scales (HL, HB, HRC, HRB, HRA, HV, HS)

• High measurement range from 170 to 960 HLD

• Stores up to 500 test series for easy recall and analysis

• USB interface for PC connectivity and report generation

• Multi-language support (English and Chinese)

• Operates with two AA batteries and supports up to 100 hours of continuous use

Applications

• Testing of mold cavities

• Bearings and assembled mechanical parts

• Failure analysis of boilers, steam generators, and pressure vessels

• Inspection of large and heavy workpieces

• Testing of permanently installed machines

• Surface testing in confined or narrow spaces

• Formal inspection and documentation of hardness values

• Material classification in metal storage or stock environments

• High-speed batch testing across multiple measurement areas

Working Principle

The MH600 uses the Leeb rebound method, where an impact body strikes the test surface and rebounds. The hardness value is calculated by comparing the velocities before and after impact. The result is automatically converted to the selected hardness scale, providing reliable measurements quickly and efficiently.

Technical Specifications

• Measuring range: 170 to 960 HLD

• Resolution accuracy: ±6 HLD

• Supported impact directions: vertical down, angled, horizontal, vertical up (auto recognition)

• Repeatability: ±6 HLD

• Tested materials: steel, cast steel, cold work tool steel, stainless steel, grey cast iron, nodular cast iron, cast aluminum

• Hardness scales: HL, HB, HRB, HRC, HRA, HV, HS

• Impact energy: 11 mJ (type D)

• Impact weight: 5.5g / 7.2g

• Impact ball hardness: 1600 HV

• Impact ball diameter: 3 mm

• Impact ball material: tungsten carbide

• Sample surface roughness: D – 1.6 μm, C – 0.4 μm

• Minimum hardness layer thickness: D ≥ 0.8 mm, C ≥ 0.2 mm

• Display: Color TFT LCD, 320×240 dot matrix

• Data storage: 500 test series (average 32–1 values per series)

• Calibration: Basic (one-point) and multi-point

• Communication interface: USB 1.1

• Language support: English and Chinese

• Power supply: Two AA batteries (3V)

• Working time: Up to 100 hours (with default brightness)

• Housing material: ABS plastic with sealed design

• Dimensions: 150 × 76 × 38 mm

• Main unit weight: 230 g

• Total shipping weight: 5.5 kg

• Package dimensions: 36.5 × 29 × 12.5 cm

The Mitech MH600 is a robust and flexible hardness tester offering advanced capabilities for professionals who require reliable on-site material verification and quality assurance in diverse working environments.