ZHU250CL universal hardness testing machine

Combining the best

The ZHU250CL hardness tester employs the latest technology, with closed-loop control for test load application. The modern system for test load application (closed loop) stands out because of its precision. Accuracy exceeds the requirements of all relevant ISO and ASTM standards.

For more sophisticated or for automated applications, PC controlled versions are available as semi or fully automatic systems based on the high definition software (HD).

Customer case: Johann Maier

Fast and reliable hardness testing with the ZHU250CL universal hardness tester. Operation and control of the hardness tester are handled by the Diamond hardness testing software.

Advantages & features

Applications

The ZHU250CL universal hardness tester is suitable for the following test methods:

Rockwell
to ISO 6508 and ASTM E18
Scales: A B C D E F G H K L M N P R S T V W X Y
Vickers / Knoop
to ISO 6507/ ISO 4545 and ASTM E92
HV0.5 - HV100 / HK 0.5 - HK 2
Brinell
to ISO 6506 and ASTM E10
HBW1/10 - HBW5/250

Advantages

All in one - fast and reliable hardness testing with the ZHU250CL-S universal hardness tester from ZwickRoell:

The innovative force application system with closed-loop control provides a better signal-to-noise ratio compared with conventional instruments using load cells. The resulting force accuracy is significantly better than that defined in the relevant ISO and ASTM standards.
The unique 4-plus-4 turret allows Vickers, Knoop, Rockwell and Brinell hardness testing without the need for the time consuming task of changing objective lenses and indenters.
The unrestricted accessibility to the indenter optimizes the test procedure.
With the comfortable and variable test area, a wide variety of specimens can be tested at eye level.

Accessories for the ZHU250CL

Lenses and indenters

The unique '4-plus-4' fixture carousel for up to four lenses and four indenters (at the same time) with its special vertical layout enables testing in difficult-to-access locations.

Specimen holders

Holders for metallographic specimens and special devices for welded seam tests are available, together with customized test devices. Talk to your field service advisor!

Support table and PC mounting arm

Create a convenient operating environment for your hardness tester with a suitable computer mounting arm and sturdy support table.

X-Y tables

A range of motorized X-Y tables is available for automated hardness traverse tests.

Technical data

Type	ZHU250CL-S	ZHU250CL-A
Test weights	0.5 to 250	0.5 to 250	kg
Test-weight resolution	0.1	0.1	kg
Vickers HV	Standard load steps from HV1	Standard load steps from HV1
Brinell HBW	Standard load steps with 1mm, 2.5mm and 5mm balls up to 250 kg	Standard load steps with 1mm, 2.5mm and 5mm balls up to 250 kg
Rockwell and Rockwell superficial	All scales as per standard	All scales as per standard
Display	PC monitor¹	PC monitor¹
Data input	PC keyboard¹	PC keyboard¹
Focusing	manual via handwheel	Automatic, motorized via lead screw
Optics	1.3-megapixel camera	1.3-megapixel camera
HD software	ZHμHD-S	ZHμHD-A
Indenter	up to 4 optional	up to 4 optional
Lenses	up to 4 optional	up to 4 optional
Data export	RS232/USB	RS232/USB
Test area (height x depth)	379 x 150	379 x 150	mm
Dimensions	600 x 1100 x 400	600 x 1100 x 400	mm
Weight	150	150	kg
Electrical supply	3A single-phase, 240/120V, switchable	3A single-phase, 240/120V, switchable

PC, monitor and keyboard included in delivery.

Do you have any questions regarding our products?

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

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Downloads

Product brochure: Hardness Testing with ZwickRoell PDF 13 MB
- DE
- EN
Product information: ZHU250CL universal hardness testing machine PDF 762 KB
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- EN
Product information: Mounts for metallographical specimens PDF 252 KB
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- EN
Product information: Indenter PDF 106 KB
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- EN
Product information: Hardness reference blocks PDF 121 KB
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Product Information: mapXpert – image of hardness testing results PDF 271 KB
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