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Hardness Testing

Equotip 550 Portable Rockwell

Equotip 550 Portable Rockwell

  • No thickness limitation of tested objects - perfect for thin metal sheets
  • Faster than stationary Rockwell hardness testers, yet very accurate
  • Purely material-independent method thanks to the direct measurement of the indentation depth


Hardness testing of thin metal sheets and wires / Hardness testing of casts, flanges, shafts, and bars/pipes / Quality and wear control of turbine blades and brake systems

Extremely precise, and material independent version of conventional Rockwell method
Resolution & depth
The only portable measurement method that has practically no minimal thickness limitation - perfect for thin sheets of metals, any material.
Equally reliable, accurate and standardized but faster than stationary Rockwell hardness testers.
User Experience
Material independent method - that can be combined with Leeb and UCI in one measurement device. One device - all applications.

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Software for Equotip 550 Platform
Equotip 550 Platform
Tech Specs
Equotip 550 Platform
7” color capacitive touchscreen

Instrument protection
- IP54, fully rugged with shock absorbing casing,
- Scratch-resistant Gorilla® Glass screen protection,
- Circuit and connector protection against dust, debris, chemicals and voltage spikes
- Foldable additional screen cover for additional protection during storage and transportation

Internal 8 GB flash memory (>1’000’000 measurements)

Combination with another testing method
Leeb, UCI

Ethernet & USB-B (PC connection), USB-A (PRT), Probe-specific slots

3.6V, Li-Ion, 14’000 mAh

Battery lifetime
> 10h (in standard operating mode)

Charging time
< 9h, <5.5 h (External quick charger)

Power input
12V +/- 25% / 1.5A

250 x 162 x 62 mm / 9.87 x 6.37 x 6.44 in

1’525 g / 3.35 lbs. (incl. battery)

Humidity operation
< 95% RH, non-condensing

Operating temperature
(-) 10°C + 50°C / 14°F – 122°F


Equotip 550 Software Features
- Advanced algorithm option for faster measurements
- Fully customizable reporting
- Customizable views
- Verification wizard
- Measurement wizard
- Mapping wizard
- Integration in automated testing environments (incl. remote control)
- Custom conversion curves (1-point, 2-point, polynomial)
- Built-in pdf creator

Conversion curves applicable for materials
- Steel and cast steel

English, German, French, Italian, Spanish, Portuguese, Turkish, Chinese, Korean, Russian, Japanese, Polish, Czech

Regional settings
Metric and imperial units, multi-language and time-zone

Audio support
Full digital audio

Desktop Software (Windows)
PC Software
Equotip Link for data download, management and export (CSV, PNG), Conversion curve management, and for upgrades of constantly expanding Equotip and Equotip Link Software

Language support
English, Chinese, Czech,German, Spanish, French, Italian, Korean, Japanese, Polish, Portugese, Russian, Turkish
Equotip 550 Portable Rockwell Tech Specs
Tech Specs
Native Scale
mm, HRC

Conversion scales
HLD, HV, HB, HRA, HRB, HRC, HR15N, MPA (σ1, σ2, σ3)

Measurement range
10-100 mm, 19-70 HRC, 35-100 HV

ASTM E3246 and DIN50157 compliant, 100° diamond

Impact energy / Test force
50 N (10N + 40 N)

Accredited calibration
ISO/IEC 17025

Standard compliance
ASTM A3246
DIN 50157

DGZfP Gudeline MC 1
VDI / VDE Gudeline 2616 Paper 1

Conversion standards
ISO 18265

Measurement resolution
0.1 μm; 0.1 HRC; 1 HV

Measuring accuracy
± 0.8 μm; ~ ± 1.0 HRC over entire range

Measurement deviation (E)
Lower than DIN 50157 and ASTM E3246

Coefficient of variation (R)
Lower than DIN 50157 and ASTM E3246

264 g / 9.3 oz

Ø 40 mm, Length 115 mm
Other customers also purchased:
Standards & Guidelines


  • Arrow, click names to download Standards & Guidelines ASTM A 370
  • Arrow, click names to download Standards & Guidelines ASTM E3246
  • Arrow, click names to download Standards & Guidelines DIN 50157


  • Arrow DGZfP Guideline MC 1
  • Arrow Nordtest Technical Reports 424-1, 424-2, 424-3
  • Arrow VDI / VDE Guideline 2616 Paper 1

How deep can I measure with the Pundit PD8000?

No. Portable Rockwell method can be applied for any metal object regardless of its mass.

What materials can be investigated with portable Rockwell and what materials require corrections?

Portable Rockwell can be used to investigate any type of metal objects. Portable Rockwell is based on direct measurement of penetration depth and therefore does not require any material correction. Portable Rockwell is...

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What is the principle behind the portable rockwell method?

The Portable Rockwell metal hardness tester is based, as its name suggests, on the static Rockwell measuring principle where the penetration depths under a defined preload are measured before and after application of a...

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What is the minimum thickness of the thin metal sheet that can be successfully tested with portable Rockwell?

Test objects should have at least 10 times the thickness of the penetration depth to avoid influences on the measurement value. The penetration depth and so the minimum thickness can be assessed from the attached plot when...

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