Equotip 550 Leeb Rebound Hardness Tester

Equotip 550 Leeb Rebound Hardness Tester

Equotip 550 Leeb Rebound Hardness Tester

The Equotip 550 is the most versatile all-in-one solution for portable hardness testing, combining Leeb with Portable Rockwell methods. The new generation Touchscreen with elaborate user interface increases user efficiency and exceptional user experience. Enhanced software provides interactive wizards, automatic verification processes, personalization options, customized report functions and much more.


  • Automatic conversions to all common hardness scales (HV, HB, HRC, HRB, HRA, HS and Rm) are required.
  • Highly accurate: ±4 HL (0.5% at 800 HL) with automatic correction for impact directions
  • Modular Concept: Wide measurement range with flexible configurations for various industry applications and a variety of impact devices and support rings to serve most hardness testing requirements.
  • Combined method: Automatic on-site correlation of Leeb to Portable Rockwell true indentation hardness value
  • Extensive range of precise hardness test blocks available for each impact device with different hardness levels for regular verification.
  • Interactive Guides: On screen notifications to obtain the most relevant settings for your application
  • Conversion Curves: Creates, edits and verifies material conversion curves directly on the instrument.
  • Custom Reports: Modular generator allows for customized measurement reports.
  • Automation Option: Integration of NDT automation into quality management systems and automated testing environments.
  • Robust Housing designed to be used on-site and in harsh environments (IP 54), including carrying strap, integrated stand and sunshield cover.
  • High resolution color display
  • Battery life of > 8 hrs.
  • 8 GB Flash memory
  • Dual core processor supporting diverse communications and peripheral interfaces: Probe connector, USB Host, USB device and Ethernet.



  • Leeb rebound hardness testing is mainly used for metals but also for composites, rubber and rock testing.
  • Excellent for material selection, acceptance and production level testing, e.g. in the automotive industry
  • Ideal for on-site testing of heavy and large components before and after installation, e.g. in the energy sector or transmission gears.
  • Handy to difficult to access or confined metal hardness test locations
  • Testing of roadway metals
  • Stator wedge tightness
  • Checking on steam turbine generators for thermal power plants
  • Testing on rolling mills
  • How to use Equotip-Link Software on Apple operating systems
  • Equotip Leeb D usage in Oil, gas and marine industry
  • Combined method to cover new applications
  • Fire damage assessment of structural steel
  • Hardness testing of Aluminum castings
  • Thermal cutting - Staying in-line with EN 1090
  • Equotip Leeb conversion curves
  • Equotip Leeb G testing of engine cylinder blocks and cylinder heads
  • Equotip Automation Package used in automotive parts


Display: 7" Color Display, 800 x 480 pixels
Memory: Internal 8 GB Flash memory (up to 1,000,000 measurements)
Regional Settings: Imperial and metric units, multi-language and timezone supported
Battery: Lithium Polymer, 3.6V, 14.0Ah
Battery Lifetime: > 8 hrs. (in standard operating mode)
Power Input: 12V ±25% / 1.5 A
Weight (of display device): About 1525 g. (including battery)
Dimensions: 250 x 162 x 62 mm
Max. Altitude: 2,500 m above sea level
Humidity: < 95% RH, non condensing
Operating Temperature: 32°F to 86°F / 0°C to 30°C (Charging, running instrument)
32°F to 104°F / 0°C to 40°C (Charging, when instrument is off)
14°F to 122°F / -10°C to 50°C (Non-charging)
Environment: Suitable for indoor and outdoor use
IP Classification: IP 54
Pollution Degree: 2
Installation Category: 2
Equotip Leeb Impact Devices:
Measuring Range: 1 - 9999 HL
Measuring Accuracy: ± 4 HL (0.5% at 800 HL)
Resolution: 1 HL; 1 HV; 1 HB; 0.1 HRA; 0.1 HRB; 0.1 HRC; 0.1 HS; 1 MPa (N/mm2)
Impact Direction: Automatic compensation (excluding DL probe)
Impact Energy: Energy Measurements:
11.5 Nmm for D, DC, E, S probes

11.1 Nmm for DL probe
3.0 Nmm for C probe
90.0 Nmm for G probe
      Mass of Impact Body: Weight:
      0.2 oz. / 5.45 g. for D, DC, E, S probes

      0.26 oz. / 7.25 g. for DL probe
      0.11 oz. / 3.10 g. for C probe
      0.71 oz. / 20.0 g. for G probe
        Ball Indenter: Material:
        Tungsten carbide, 0.12" / 3.0 mm diameter for C, D, DC probes
        Tungsten carbide, 0.11" / 2.78 mm diameter for DL probe
        Tungsten carbide, 0.2" / 5.0 mm diameter for G probe
        Ceramics, 0.12" / 3.0 mm diameter for S probe
        Polycrystalline diamond, 0.12" / 3.0 mm diameter for E probe
            Operating Temperature: 14°F to 122°F / -10°C to 50°C


            • ASTM A956 / E140 / A370
            • ISO EN 16859
            • DIN 50156
            • GB/T 17394
            • JB/T 9378


            • ASME CRTD-91
            • DGZfP Guideline MC1
            • VDI / VDE Guideline 2616 Paper 1
            • Nordtest Technical Reports 99.12, 99.13, 99.36
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