The Mitech MH320 Portable Leeb Hardness Tester is a high-performance, all-in-one solution for on-site hardness testing of metallic materials. Designed with an integrated thermal printer, a high-contrast 128×64 LCD screen, and broad material compatibility, it allows fast, accurate, and versatile hardness measurements using the Leeb principle.
The MH320 supports automatic conversion between Leeb (HL), Brinell (HB), Rockwell (HRC, HRB), Vickers (HV), and Shore (HS) hardness scales, making it ideal for quality control in metal processing, failure analysis, and inspection applications. Its compact, durable design makes it especially suited for large or permanently installed components.
Key Features
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Supports 6 Impact Devices: Fully compatible with D, DC, DL, C, G, and E types
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Automatic Hardness Conversion: HL, HB, HRB, HRC, HV, HS
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Integrated High-Speed Thermal Printer: Instantly print test results on-site
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500 Memory Groups: Store up to 500 test sets including impact values, averages, date/time, material, direction & more
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Data Transfer: USB port for PC connectivity, data export, report generation, and calibration
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Alarm Function: Set upper/lower hardness limits; alerts if out of range
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Multilingual Interface: Chinese-English switching with intuitive, menu-driven navigation
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Energy-Efficient Power: Built-in NiMH battery supports ≥150 hours of operation
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Compact & Rugged: Lightweight design for industrial environments; protected from vibration and EMI
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Display: 128×64 dot matrix LCD with adjustable brightness for indoor/outdoor use
Specifications
| Measuring range | （170～960）HLD |
| Impact direction | vertically downward, oblique, horizontal, oblique, vertical upward, automatically identify |
| Error | D，±6 HLD |
| Repeatability | D，6 HLD |
| Material | Steel and cast steel,Cold work tool steel,Stainless steel,Grey cast iron,Nodular cast iron,Cast alu |
| Hardness Scale | HL、HB、HRB、HRC、HRA、HV、HS |
| Impact energe | D----11mJ |
| Impact weight | D----5.5g/7.2g |
| Impact ball hardness | D----1600HV |
| Impact ball diameter | D----3mm |
| Impact ball material | D----Tungsten carbide |
| Sample surface roughness | D----1.6μm；C----0.4μm |
| Min depth of harness layer | D≥0.8mm；C≥0.2mm |
| Display | 128×64 dots, adjustable backlight |
| Storage | 500 measurement series.(Relative to average times 32～1) |
| Calibration | Single-point calibration |
| Data printing | Thermal printing on site |
| Power voltage | 6V Ni-MH battery pack |
| Power supply | 9V/500mA |
| Power consumption | Low-power design |
| Standby period | About 150 hours（with default brightness） |
| Commumication port | USB1.1 |
| Working language | English |
| Shell material | ABS plasic |
| Dimensions | 212mm×80mm×32mm |
| Weight | 5.5KG |
| PC software | Have |
Product title
Vendor
R 19.99 | R 24.99
Product title
Vendor
R 19.99 | R 24.99
Product title
Vendor
R 19.99 | R 24.99
Product title
Vendor