--- title: Wilson UH4000 Universal Hardness Tester url: https://www.buehler.com/products/hardness-testing/brinell-and-universal-hardness-testers/wilson-uh4000-universal-hardness-tester/ date: 2021-10-18T20:58:39+00:00 modified: 2025-05-12T15:36:36+00:00 lang: en_US --- # Wilson UH4000 Universal Hardness Tester # Wilson® UH4000 Universal Hardness Tester ![Wilson UH4000 Universal Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/UH4250-Auto.png) *Wilson UH4000 Universal Hardness Tester* ![Wilson UH4000 Universal Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/UH4000-Series.png) *Wilson UH4000* ![Wilson UH4000 Universal Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/UH4000-Series-Features-Illumination.png) *Wilson UH4000* ![Wilson UH4000 Universal Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/uh4250-universal-hardness-tester-closeup.jpg) *Wilson UH4000* ## UH4000 Universal Hardness Tester ### Automated Hardness Testing System The Wilson UH4000 Universal Hardness Tester series, tailored for high-volume applications from innovative labs to the production floor, is offered in three configurations: the UH4750, UH4250, and the Auto UH4250 with motorized XY stage. Designed to execute various hardness scales within a single machine, typically for higher loads (>5kgf), these testers encompass all comprehensive Vickers, Knoop, Rockwell, and Brinell scales. Adhering to ISO 6506, 6507, 6508, and 4545, as well as ASTM E18, E10 & E92 standards, the UH4000 series ensures complete hardness testing capabilities. Moreover, it accommodates plastics and carbon testing in line with ISO2039 and DIN51917. #### Wilson UH4000 Benefits Total Versatility - 8 position turret for complete flexibility - Complete selection of anvils and sample holders for all applications - Optional clamping tool, adding stability throughout the testing process Easy to Use - fast and simple operation caters to the requirements of first-time users, while preserving the flexibility essential for complex applications - Machine selection includes a range of DiaMet software solutions for each of the three UH4000 series models Expert Software Solutions - The standard models, UH4250 and UH4750, will be controlled by DiaMet Basic, including autofocus and automeasurement. The UH4250 Auto model includes a motorized stage and will be controlled by DiaMet Enterprise ### Diamet® Hardness Testing Software Enhance sample throughput while ensuring consistency with minimal complexity through our DiaMet 2.0 software system. ![DiaMet Computer Monitor](https://buehler.com/wp-content/uploads/2024/03/DiaMet-Computer-Monitor-1024x442.png) ![DiaMet - Automated](https://buehler.com/wp-content/uploads/2024/03/DiaMet-Automated.png) Automated By prioritizing swift and simple operation for all users, DiaMet software can utilize high automation, ensuring flexibility for the future. ![DiaMet - Fast](https://buehler.com/wp-content/uploads/2024/03/DiaMet-Fast.png) Fast Achieving auto-focus and auto-measurement in 5 seconds or less, deliver the fastest test cycle for precise and efficient results. ![DiaMet - Safe](https://buehler.com/wp-content/uploads/2024/03/DiaMet-Safe.png) Safe Emphasize machine safety with collision-resistant indenters and objectives, ensuring safety meets flexibility. ![DiaMet - Versatile](https://buehler.com/wp-content/uploads/2024/03/DiaMet-Versatile.png) Versatile Optimized for Vickers, Knoop, Rockwell, Superficial Rockwell, Brinell, and K1c fracture as per ISO and ASTM standards. [Learn More About DiaMet](https://buehler.com/products/hardness-testing/automation-software/diamet-hardness-testing-software/) #### Ordering | Wilson UH4000 Series Ordering | | | | --- | --- | --- | | Part Number | Description | Request a Quote | | Wilson UH4250 | | | | W4250 | Load Range 0.5-250kgf, Standard Monitor 24" | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | W4251 | Load Range 0.5-250kgf, Touchscreen 19.5" | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | Wilson UH4750 | | | | W4750 | Load Range 3 - 750kgf, Standard Monitor 24" | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | W4751 | Load Range 3 - 750kgf, Touchscreen 19.5" | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | Wilson UH4250 Auto\* | | | | W4250XY | Load Range 0.5- 250kgf, 24" Standard Monitor, 180 x 180mm motorized stage | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | W4251XY | Load Range 0.5-250kgf, 19.5" Touchscreen, 180x180mm motorized stage | [Request a Quote](https://buehler.com/buehler-request-a-quote.php) | | \*Clamping device W4100CL not applicable | | | #### Specifications | | Wilson UH4250 | Wilson UH4750 | | --- | --- | --- | | Hardness Scales | HV 0.5 - HB 10/250 | HV 3 - HBW 10/750 | | Turret | 8 positions for objectives and indenters | | | Indenters (Optional) | Brinell 1mm, 2.5mm, 5,0mm and 10,0mm carbide balls, Rockwell diamond cone, 1/16", 1/8", ¼", ½" carbide ball indenters, Vickers diamond and Knoop diamond | | | Objectives Long Working Distance (Optional) | 0.5x (optional with ring light), 5x, 10x, 20x, 40x, 50x | | | Optics | 5-megapixel USB 3 digital camera, with digital zoom and autofocus | | | Test Loads | 0.5-250kgf | 3-750kgf | | Test Load Type | Closed loop | | | Test Standards | Brinell (ISO 6506-1, ASTM E10), Vickers (ISO 6507-1, ASTM E92), Rockwell (ISO 6508-1, ASTM E18), Knoop (ISO4545-1, ASTM E384), Plastic testing ball indentation (ISO 2039-1, 2039-2) | | | Z Spindle | Manual hand wheel and automatic Z axis drive | | | Maximum Specimen Height/Weight | 300 mm (11.8 in), 70 kg (154 lb) | | | Test Stage Dimensions | T-slot stage with 12mm slot width, 300mm \[11.8in\] x 400mm \[15.7in\] | | | Machine Dimensions (L × W × H) | 704 Mm (28 in) × 534 mm (21 in) × 995 mm (39.2 In) | | | Machine Net Weight | 300kg (660lb) | | | Power | 100 - 240VAC, 50-60Hz | | #### Consumables and Accessories [![Hardness Test Blocks](https://buehler.com/wp-content/uploads/2024/03/Hardness-Test-Blocks.png)](https://buehler.com/products/hardness-testing/hardness-testing-blocks/) [Test Blocks](https://buehler.com/products/hardness-testing/hardness-testing-blocks/) Available in a wide range that set the standard for industry [![Carbide Ball](https://buehler.com/wp-content/uploads/2024/03/0012356_carbide-ball-116in-for-uh250-iso.png)](https://buehler.com/products/hardness-testing/hardness-testing-indenters/) [Indenters](https://buehler.com/products/hardness-testing/hardness-testing-indenters/) Browse our selection of ISO & ASTM Certified Indenters [![900007387 pedistal spot anvil](https://buehler.com/wp-content/uploads/2021/10/900007387_pedistal-spot-anvil.png)](https://buehler.com/products/hardness-testing/hardness-testing-sample-holders-and-anvils/#brinell-and-universal) [Sample Holders and Anvils](https://buehler.com/products/hardness-testing/hardness-testing-sample-holders-and-anvils/#brinell-and-universal) Find sample support that's right for your application [![GP-HDT Sample Fixture](https://buehler.com/wp-content/uploads/2024/03/GP-HDT-Sample-Fixture.png)](https://buehler.com/products/hardness-testing/gp-hdt-sample-fixture/) [GP-HDT Sample Fixture](https://buehler.com/products/hardness-testing/gp-hdt-sample-fixture/) Move directly from grinding and polishing to hardness testing [![UH4000 Ring Light](https://buehler.com/wp-content/uploads/2024/03/UH4000-Ring-Light.jpg)](https://buehler.com/products/hardness-testing/wilson-hardness-testing-accessories/) [Other Universal Hardness Tester Accessories](https://buehler.com/products/hardness-testing/wilson-hardness-testing-accessories/) View our complete line of accessories for the UH4000 Series #### Related Products [![Wilson® VH3300 Automatic Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/VH3300_front-view_no-monitor.png)](https://buehler.com/products/hardness-testing/vickers-knoop-hardness-testers/wilson-vh3300-vickers-and-knoop-hardness-tester/) [Wilson® VH3300 Hardness Tester](https://buehler.com/products/hardness-testing/vickers-knoop-hardness-testers/wilson-vh3300-vickers-and-knoop-hardness-tester/) A completely integrated system for a full range of Vickers & Knoop applications with its fast, six position turret. [![Wilson Rockwell RH2150 Hardness Tester](https://buehler.com/wp-content/uploads/2021/10/RH2150_Front.png)](https://buehler.com/wilson-rh2150-rockwell-hardness-tester-benefits/) [Wilson® Rockwell®RH2150 Hardness Tester](https://buehler.com/wilson-rh2150-rockwell-hardness-tester-benefits/) Maximize productivity with the versatile Wilson RH2150 series. Offering a broad testing range and user-friendly interface for efficient and flexible operations. [![Wilson® VH1102 & 1202 Micro Hardness Testers](https://buehler.com/wp-content/uploads/2021/10/VH1102-1202.png)](https://buehler.com/products/hardness-testing/vickers-knoop-hardness-testers/wilson-vh1102-and-1202-micro-hardness-testers/) [Wilson® VH1102 & 1202 Hardness Tester](https://buehler.com/products/hardness-testing/vickers-knoop-hardness-testers/wilson-vh1102-and-1202-micro-hardness-testers/) Versatile and reliable solutions for accurate micro-hardness testing with optional DiaMet software. #### Product Literature [![Wilson UH4000 Universal Hardness Tester English](https://buehler.com/wp-content/uploads/2021/10/Wilson-UH4000-Universal-Hardness-Tester_English.jpg)](https://buehler.com/assets/Brochures/English/Hardness/190637_UH4000-Brochure_WEB.pdf) [Wilson UH4000 Brochure](https://buehler.com/assets/Brochures/English/Hardness/190637_UH4000-Brochure_WEB.pdf) [![Wilson UH4000 Sell Sheet English](https://buehler.com/wp-content/uploads/2021/10/Wilson-UH4000-Sell-Sheet_English.jpg)](https://buehler.com/assets/Brochures/English/Hardness/UH4000_Sales_Sheet.pdf) [Wilson UH4000 Sell Sheet](https://buehler.com/assets/Brochures/English/Hardness/UH4000_Sales_Sheet.pdf) [![DiaMet Software Brochure English](https://buehler.com/wp-content/uploads/2021/10/DiaMet-Brochure_English.jpg)](https://buehler.com/assets/Brochures/English/Hardness/DiaMet-Brochure-Update-09-12-2023.pdf) [DiaMet 2.0 Brochure](https://buehler.com/assets/Brochures/English/Hardness/DiaMet-Brochure-Update-09-12-2023.pdf) #### Videos