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Proceq Equotip 550 Hardness Tester
The Equotip 550 by Screening Eagle Technologies (Proceq) is the globally recognized gold standard in portable Leeb hardness testing for metals. Powered by a rugged 7-inch color touchscreen indicating unit and an interchangeable Type-D impact device, it delivers laboratory-grade rebound measurements with instant multi-scale conversions across HRC, HRB, HB, HV, and tensile strength according to ASTM A956 and ISO 16859.
Features & Benefits
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Original Leeb Testing Authority (ASTM A956 & ISO 16859): Delivers certified accuracy ($\pm 4\text{ HL}$) from the brand that pioneered the rebound hardness testing method.
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Large 7-Inch Color Touchscreen Display: Offers intuitive touch control, glove-compatible operation, and graphical visualization of statistical distributions and live limit alerts.
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Automatic 360° Angle Compensation: Automatically senses and corrects for impact device orientation without manual tilt setting, whether testing downward, sideways, or upside-down.
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Comprehensive Multi-Scale Conversion: Real-time conversions across Rockwell (HRC, HRB, HRA), Brinell (HB), Vickers (HV), Shore (HS), and Tensile Strength ($R_m$).
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Cross-Technology Modular Platform: Upgradable to support Portable Rockwell and Ultrasonic Contact Impedance (UCI) probes on the same display unit.
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Rugged IP54 Job-Site Ready Construction: Sealed against industrial dust and moisture ingress, with reinforced drop-absorbing perimeter bumpers.
Description
Developed by Proceq—the original inventors of the dynamic Leeb rebound hardness test method—the Equotip 550 combines Swiss metrology precision with an advanced digital software platform. Built around a 7-inch high-visibility color touchscreen encased in an IP54-rated shock-absorbing enclosure, the instrument allows quality engineers, metallurgists, and heat-treatment inspectors to evaluate massive castings, forgings, turbine rotors, and in-service pressure vessels directly on site.
Technical Specifications
| Specification Attribute | Details / Values |
| Brand / Manufacturer |
Screening Eagle Technologies / Proceq (Zurich, Switzerland) |
| Model / MPN |
Equotip 550 Leeb (Order No. 351 10 001) |
| Product Category |
High-Precision Portable Universal Leeb Hardness Tester |
| Measurement Principle |
Dynamic Leeb Rebound Method (Invented by Proceq) |
| Impact Device | Equotip Impact Device D (Tungsten carbide spherical test tip, 11.5 Nmm energy) |
| Measuring Range (Leeb) | 150 to 950 HLD |
| Hardness Conversion Scales | HRC, HRB, HRA, HB, HV, HSD (Shore), Tensile Strength $R_m$ (MPa / N/mm²) |
| Measurement Accuracy | $\pm 4\text{ HLD}$ (at $800\text{ HLD}$, 0.5% repeatability) |
| Angle Correction | Automatic 360° omnidirectional angle compensation |
| Display Unit | 7-inch color TFT touchscreen display ($800 \times 480$ pixels) |
| Internal Memory | 8 GB flash memory (stores $> 1,000,000$ measurement readings with metadata) |
| Data Connectivity | USB Host, USB Device, Ethernet RJ45; Equotip Link PC Software |
| Probe Compatibility | Interchangeable: Leeb D, DC, DL, G, S, E, Equotip 550 UCI, and Portable Rockwell |
| Compliance Standards | ASTM A956, ISO 16859, DIN 50156, GB/T 17394, ASTM E140 conversion tables |
| Power Supply & Battery | Rechargeable Li-ion battery pack; $> 8\text{ hours}$ continuous operation |
| Ingress Protection Rating | IP54 (IEC 60529 dust and water splash resistance) |
| Operating Temperature | -10°C to +50°C (14°F to 122°F) |
| Weight | Indicating Unit: Approx. 1525 g (including battery) |
| In The Box / Standard Accessories | Equotip 550 Touchscreen Unit, Impact Device D with Cable, Calibrated Reference Test Block D, Cleaning Brush, Coupling Paste, USB Cable, Power Supply, Rugged Carrying Case, Calibration Certificate |
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