Jump to the content of the page


Universal Rockwell hardness tester Download
Test methods
  • Rockwell
  • Superficial Rockwell
  • Brinell (HBT)
  • Vickers (HVT)
  • Plastics testing
  • Carbon testing
  • Ceramics testing
Test load
  • 0.5 - 250 kg
  • ISO 6508
  • ISO 2039
  • ASTM E-18
  • DIN 51917

The master of depth

The ZwickRoell Indentec Rockwell hardness testing machine with closed loop force control. It combines closed-loop load application with the unsurpassed test accessibility of the nose-mounted indenter. With more than a dozen different standards, the ZHR8150CLK covers almost all Rockwell and Superficial Rockwell test requirements.

Achieve reliable test results with the ZHR8150CLK hardness tester—for more than 30 different depth-measurement applications, including Rockwell for metals and ball indentation hardness for plastics.

The Rockwell hardness tester covers the following methods:

Advantages & features



The ZHR8150CLK hardness tester is suitable for the following methods:

  • Rockwell for metals
    To ISO 6508 and ASTM E18
  • Superficial Rockwell for metals
    To ISO 6508 and ASTM E18
  • Rockwell for plastics
    To HRα (Alpha), ISO 2039-1 and 2039-2, ASTM D785 (A & B)
  • Rockwell for carbonaceous materials
    To DIN 51917
  • Rockwell HR2.5
  • Brinell (depth measurement method) HBT
    To VDI 2616
  • Brinell
    To ISO 6506, ASTM E10
    (Indentation only; measurement requires an additional microscope)
  • Vickers (depth measurement method) HVT
    To VDI 2616
  • Elastic and laminate floor coverings
    To ISO 24343, ASTM F1913, F1303


  • ZHR8150CLK hardness tester offers you reliable test results for more than 30 different applications of depth measurement methods, for example, Rockwell and ball indentation.
  • Closed-loop control load application enables hardness tests in a wide range of applications with only one instrument.
  • Nose-mounted indenter allows hardness testing in difficult-to-access measuring points.
  • Automatic test sequence and automatic conversion in alternative hardness scales save time and guarantee a high level of repeatability.
  • Export your test results via USB to testXpert and take advantage of intelligent report creation.


Data calculationAverage value (display)
Good/poor evaluation (display and output)
Automatic display of selected hardness test method
Automatic conversion (Vickers, Brinell, Rockwell, Knoop, tensile strength)

Automatic curve correction (Ø = 3 to 20 mm)

Automatic load cycle

Adjustable hold time (1 to 999 s)

USB connection
Data processing including average, range and batch size
Automatic loading cycle for multiple samples
Automatic curve correction
Automatic loading cycle
Adjustable dwell times
Alert for out of tolerance results
Supplied with UKAS calibration certificate


  • Machine with extended height
  • Motorized lead screw
  • Manual Jominy clamping device (digital/manual micrometer)
  • Different test anvils, indenters, clamps and work rests

Technical overview

Do you have any questions regarding our products?

Please feel free to contact our product experts.
We look forward to discussing your needs.


Contact us

Related products and accessories


Name Type Size Download
  • Product brochure: Hardness Testing with ZwickRoell PDF 25 MB
  • Product information: ZHR8150CLK universal Rockwell hardness tester PDF 452 KB
  • Product information: ZHR8150CLF hardness tester for floor coatings PDF 497 KB
  • Product information: Indenter PDF 106 KB
  • Product information: Hardness reference blocks PDF 121 KB

Interesting customer projects