Wilson® VH3100 Vickers and Knoop Hardness Tester

Wilson VH3100

Automated Hardness Testing System

Crafted to fit the demands of 24/7 applications, the Wilson VH3100 provides a fully automated, lean hardness tester. With a 3-position virtual turret housing one indenter and two measurement objectives, it streamlines operations by fixing indenters, objectives, and the overview camera in place. Configured with DiaMet software, this robust machine ensures maximum precision and minimized testing time.

Wilson VH3100 Benefits

Ease of Use
  • Ease of operation is facilitated by both the intelligently designed machine and the user-friendly DiaMet software
  • A dedicated tester with a single indenter for a lean design
  • Loadcell with a range of 0.05 – 10kgf
Increased Up-Time
  • Collision Resistant System preventing indenter or objective damage
  • Built-in overshoot protection
  • Minimized complexity by aligning indenters, objectives, and the optional overview camera at a fixed position, reducing moving parts and service requirements

Diamet® Hardness Testing Software

Enhance sample throughput while ensuring consistency with minimal complexity through our DiaMet 2.0 software system.
DiaMet Computer Monitor
DiaMet - Automated


By prioritizing swift and simple operation for all users, DiaMet software can utilize high automation, ensuring flexibility for the future.

DiaMet - Fast


Achieving auto-focus and auto-measurement in 5 seconds or less, deliver the fastest test cycle for precise and efficient results.

DiaMet - Safe


Emphasize machine safety with collision-resistant indenters and objectives, ensuring safety meets flexibility.

DiaMet - Versatile


Optimized for Vickers, Knoop, Rockwell, Superficial Rockwell, Brinell, and K1c fracture as per ISO and ASTM standards.


Wilson VH3100
Configure your VH3000 Series Vickers-Knoop Hardness Tester and select from motorized stage sizes, vertical test capacity, optics, and load cell selections.
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Part # Description
Main Unit
W3111 3 objectives + 1 indenter, 0.050 - 10kgf load range, includes DiaMet workstation and 24" monitor
Software Options
W3100A03 DiaMet Full-Automatic software package
W3100A15 DiaMet Enterprise software package
Motorized Stages
W3000SS Standard Size (180 x 180mm)
W3000SL Large Size (300 x 180mm)
Vertical Test Capacity
W3100D01 Height - 125mm
W3100D02 Height - 170mm
W3100D03 Height - 215mm
Load Cell
W3100E02 100N Loadcell
Overview Camera
W3110F01 Separate overview camera, Includes Scan & Stitch function in the DiaMet software
Additional Accessories
W3100G01 Indenter Holder (Standard)
W3100G02 SnapGrip Holder
W9100687 Vickers Indenter
(Vickers Indenter, ISO & ASTM Certified)
Part Number Negative Mag. Max. Field of View
W5XLWDO 5x 3600μm
W10XLWD 10x 1800μm
W20XLWD 20x 900μm
W40XLWD 40x 450μm
W50XLWD 50x 360μm
W100XLWD 100x 180μm


  Wilson VH3100
Scales HV, HK
Turret Automatic 3 position + overview Automatic
Indenter positions 1 (optional with SnapGrip)
Test Load (select) Medium loadcell (100N) 50gf - 10kgf
Test Load Accuracy ±1.5% < 200g, ±1% > 200g
Force Application Load Cell
Dwell Time 1 - 999 seconds
Standard Compliance ASTM E384, E92; ISO 6507, 9385, 4545
Magnification Range 30X - 2000X with digital zooming
Overview Camera (optional) 0.5 x 0.5in [13 x 13mm]
Light Source LED

Consumables and Accessories

Available in a wide range that set the standard for industry
Browse our selection of ISO & ASTM Certified Indenters
Find sample support that’s right for your application
Move directly from grinding and polishing to hardness testing
Limit outside vibrations and ensure your specimen remains motionless during testing

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Buehler is a division of Illinois Tool Works (ITW) and is based in Lake Bluff, Illinois. Our company’s legacy comprises groundbreaking designs including the first commercially available mounting press, the first Rockwell hardness tester and we were the first to automate polishing. This same forward-looking spirit, combined with a strong understanding of lab priorities, continues to inform how we serve our customers world-wide.

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Protect your investment with Buehler’s Service Plans. Keep your lab up and running with access to wear part kits and your machine being services by one of our highly trained Service Technicians.

Properly maintaining your equipment will ensure consistent performance , minimize downtime and reduce the likelihood of costly repairs.

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