ZHR8150CLK Universal Rockwell Hardness Tester

The Master of Depth

Achieve reliable test results with the ZHR8150CLK hardness tester, suitable for use in more than 30 depth measurement method applications, such as Rockwell and ball indention hardness.

Key Advantages and Features

Advantages and features

  • 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.
  • Its robust design with play-free, ball bearing lead screw and ease of operation provides optimal operation for use in production.
  • Export your test results via USB to testXpert and take advantage of intelligent report creation.


  • The ZHR8150CLK hardness tester is suitable for the following methods:
  • Rockwell for metals
    To ISO 6508 and ASTM E18
    Pre-load: 3, 10 kg
    Test load: 15, 30, 45, 60, 100, 150 kg
    Scales: A B C D E F G H K L M N P R S T V W X Y
  • Rockwell for plastics
    To HRα (Alpha), ISO 2039-1 and 2039-2, ASTM D785 (A & B)
  • Rockwell for carbon materials
    To DIN 51917
  • Elastic and laminate floor loading
    Determining the indentation and the residual indentation to ISO 24343-1

Technical data of basic instrument





Item no.


Load control (load, holding, unload)


Resolution, min.

0.1 positions (e.g. 62.1 HRC)

Pre-load setting

With optical and acoustic support

Start test procedure


Test area, standard (H x D)

250 x 150


Test area, expanded (H x D)

379 x 150


Dimensions, standard (H x W x D)

800 x 260 x 670


Dimensions, expanded (H x W x D)

950 x 260 x 670


Approx. weight



Power supply voltage

120 or 240


Power supply frequency

50 to 60





Data calculation

Average 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

Related Products

Export your test results to testXpert III for optimal reporting. As an alternative to the Rockwell hardness tester with closed-loop load application, there are also other models available from our Rockwell product line.