Wilson Hardness / Buehler hardness testers and measurement components
Material hardness testing systems by Wilson Hardness / Buehler: Rockwell models 574 and RH2150, VH micro-testers, UH4000 universal frames, and test blocks.
Wilson Hardness / Buehler stationary Rockwell hardness testing instruments
Hardness testers by Wilson Hardness / Buehler Rockwell series (models Wilson 574 and RH2150) deliver precise hardness determination for metals and alloys. Closed-loop load cell systems ensure high repeatability during heat treatment inspection across production facilities.
- Electronic depth measurement transducer delivering high micron readout resolution
- Support for regular and superficial Rockwell scales across diverse workpiece metals
- Touchscreen user interface featuring configurable test parameters and data storage
- Quick-change test anvils and specialized specimen clamping fixtures for complex parts
Wilson Hardness / Buehler Vickers and Knoop micro-indentation testers VH series
Micro-hardness testers by Wilson Hardness / Buehler VH series (models VH1102, VH1202, VH3100, VH3300) are engineered to test thin layers, microstructures, and weld seams. Integrated DiaMet software executes automated specimen positioning and indentation evaluation.
- Motorized revolving turret accommodating multiple indenters and optical objectives
- Configurable test load spectrum from 10 gf to 50 kgf for micro and macro ranges
- High-resolution digital optical camera providing automated indent edge detection
- Automated XY coordinate stage for automated hardness profile and hardening depth mapping
Wilson Hardness / Buehler universal hardness testing machines UH4000 series
Universal hardness testing systems by Wilson Hardness / Buehler UH4250 and UH4750 integrate Rockwell, Vickers, Knoop, and Brinell methods into one frame. A rigid alloy structure and closed-loop force regulation up to 750 kgf provide versatile performance for metal receiving inspection.
- Multifunctional scale selection across testing procedures without machine change
- Closed-loop servo-electric actuator with active strain-gauge force monitoring
- Integrated optical imaging module for automated evaluation of Brinell impressions
- Ruggedized enclosure engineered for demanding workshop and industrial metallurgical labs
Wilson Hardness / Buehler heavy-duty Brinell hardness testers BH3000 series
Floor-standing hardness testers by Wilson Hardness / Buehler BH3000 are designed to evaluate large foundry parts, forgings, and structural steel billets. Test loads up to 3000 kgf (30 kN) and rigid load frames penetrate rough surface layers to test base bulk material hardness.
- Broad testing force span from 31.25 to 3000 kgf for non-ferrous alloys, iron alloys, and steel
- Rigid welded C-frame structure offering generous vertical and horizontal working daylight
- External optical reading microscope delivering accurate diameter measurements
- Safety interlocking clamp system protecting operators during positioning of heavy forgings
Wilson Hardness / Buehler calibrated reference test blocks and indenters
Reference hardness test blocks and indenters by Wilson Hardness / Buehler serve for daily verification and machine recalibration. Superior metallurgical matrix uniformity ensures consistent readings aligned with ASTM E18, ASTM E10, ISO 6508, and ISO 6506 procedures.
- Calibrated test blocks for Rockwell HRC, HRB, Vickers HV, and Brinell HBW scales
- Precision natural diamond indenters featuring calibrated spheroconical and pyramid tips
- Tungsten carbide ball indenters in standardized diameters 1 mm, 2.5 mm, 5 mm, and 10 mm
- Hardness calibration reference sets provided with accredited metrological traceability data
Wilson Hardness / Buehler DiaMet software and digital retrofit upgrade packages
DiaMet software platform and digital upgrade kits by Wilson Hardness / Buehler convert conventional hardness testers into modern automated testing stations. The system integrates automated indent optical measurement, test reporting, and data transmission to manufacturing networks.
- Automated edge detection for Vickers, Knoop, and Brinell indentations via digital camera
- Real-time plotting of hardness distribution curves and effective surface hardening depth
- Digital retrofit kits comprising high-speed USB 3.0 cameras and machine interface modules
- Export of consolidated test certificates and statistical tables to PDF, CSV, and ERP/MES
Manufacturing legacy of Wilson Hardness and the first Rockwell testing system
The measuring instrument brand Wilson traces its origins to the Wilson Mechanical Instrument Company, founded by Charles H. Wilson and Stanley Rockwell, inventor of the Rockwell hardness scale.
The company designed the world first commercial Rockwell hardness tester, setting an international industrial standard for materials evaluation.
Joining the instrument division of Buehler (an ITW Test & Measurement company), the brand combined a century of mechanical testing experience with advanced digital instrumentation.
Today the Wilson Hardness / Buehler brand supplies stationary testing systems across all primary hardness methods for laboratory and workshop inspection.
Stationary Rockwell hardness testers for manufacturing plants and testing labs
The Wilson Hardness / Buehler Rockwell series (models 574 and RH2150) is engineered to determine the hardness of metal components following quenching, normalizing, and tempering.
The instruments utilize standard diamond spheroconical or tungsten carbide ball indenters with closed-loop preload and main load cycles.
A precision load cell and digital depth transducer eliminate mechanical friction errors during tests.
Equipped with touchscreen interfaces supporting regular and superficial Rockwell scales (HRC, HRB, HRA, HRN), the systems offer onboard data storage and automated hardness conversions aligned with ASTM E140 tables.
Vickers and Knoop micro-hardness testers for coatings and metallic thin foils
For micro-hardness inspection of galvanic platings, nitrided layers, thin metallic foils, and individual alloy phases, Wilson Hardness / Buehler manufactures the VH1102, VH1202, VH3100, and VH3300 series.
The testers operate across micro-force ranges from 10 gf to 50 kgf with robust mechanical vibration isolation.
A motorized revolving turret changes between Vickers or Knoop diamond tips and optical lenses providing magnifications up to 1000x.
High-resolution digital imaging feeds indentation photos to a workstation where DiaMet software algorithms calculate diagonal lengths and hardness ratings with submicron repeatability.
Universal hardness testing machines UH4000 featuring closed-loop force control
Universal hardness testing complexes Wilson Hardness / Buehler UH4250 and UH4750 are developed for facilities evaluating diverse metal grades.
A rigid iron alloy frame accommodates test heads for Rockwell, Brinell, Vickers, and Knoop methods, spanning a wide force range from 0.5 to 750 kgf on a single workpiece setup.
An electromechanical servo-drive continuously regulates load rate and dwell duration in compliance with ISO and ASTM procedures. The software interface allows operators to switch between testing protocols with a single click, streamlining receiving inspection throughput across metallurgical plants.
Heavy-duty Brinell hardness testers for inspecting forgings and cast billets
For quality control of heavy foundry parts, forged shafts, and structural billets with coarse microstructure, Wilson Hardness / Buehler offers the BH3000 series.
High test force up to 3000 kgf (30 kN) forces a tungsten carbide ball through rough mill scale to measure the true bulk hardness of base metal substrates.
A heavy-duty C-frame design ensures minimal frame deflection under maximum test loads. The tester is equipped with a precision measuring microscope featuring LED illumination or an automated optical camera unit that calculates spherical impression diameters to generate HBW values directly.
Calibrated hardness test blocks and DiaMet software data management platform
To perform periodic verification and metrological calibration of testing instruments, Wilson Hardness / Buehler produces precision test blocks and diamond indenters.
Fabricated from uniform alloys, reference blocks are calibrated in an accredited laboratory with traceability to ASTM E18 and ISO 6508 standards.
The DiaMet software platform unites tester automation, digital indentation measurement, and statistical process analysis. The suite plots hardening depth curves, detects process variations, and generates test documentation for plant quality management databases.
Wilson Hardness / Buehler and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Wilson Hardness / Buehler and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- Official manufacturer portal — hardness testing systems and instruments Wilson Hardness
- Rockwell hardness testers — technical specifications of Wilson 574 and RH2150
- Vickers and Knoop micro-hardness testers — optical testing systems Wilson VH3300
- Universal hardness testing systems — specifications of Wilson UH4000 series
- Accreditation and calibration data for hardness test blocks — A2LA / ISO 17025 laboratory
- Buehler global product catalog — material preparation and analysis equipment
