Portable hardness Testers

High efficiency and low-cost hardness testing in the field 

Portable Hardness Testers facts

  • Simple operation
  • Wide range of test loads
  • Various models for different sample sizes and geometries

Standard, easy-to-use testing clamps and special devices that are ideal for on-site inspection. The N4 is the standard testing clamp for on-site testing of regular workpieces. The N6 is designed for easy hardness testing on internal diameters, and the N7 is designed for testing tooth flanks on gears etc.

Simple operation

Loading (pre-loads and main loads) are easily applied by means of a lever:
1. Application of pre-load
2. Application of main load
3. Application of 2nd pre-load
4. Return to initial position

Customized test loads

The basic N4 allows for direct read out on an analogue dial gauge. The loads and indenters can be individually adapted to suit particular requirements.

Adaptability

N4 hardness testers can be configured with a number of pre-defined test loads, depending on test method requirements. Two basic options can be chosen:
a) Basic Test Unit (EMN1A001) with one available test load (spring sleeve), e.g. 1470 N (150 kgf)
b) Adjustable Test Unit with three built-in test loads, for instance 588/980/1470 N (60/100/150 kgf)

Facts

Model types

Portable hardness testers are available in three variantions, see specifications for details.

N4

N4 high efficiency and low-cost hardness testing in the field
N4A
Clamping width 0-145 mm, throat depth 85 mm. Without test unit, dial gauge and indenter. Incl. plane anvil dia. 35 mm and V-anvil for workpieces dia. 0-250 mm.

N4B
Clamping width 0-235 mm, throat depth 130 mm. Without test unit, dial gauge and indenter. Incl. plane anvil dia. 35 mm and V-anvil for workpieces dia. 20-250 mm.

N4C
Clamping width 0-335 mm, throat depth 180 mm. Without test unit, dial gauge and indenter. Incl. plane anvil dia. 35 mm and V-anvil for workpieces dia. 20-250 mm.

N4E
Clamping width 0-20 mm, throat depth 110 mm. Without test unit, dial gauge and indenter. Incl. plane anvil dia. 17 mm.

N6

N6 high efficiency and low-cost hardness testing in the field

N6
Portable intest hardness tester for bores 36-110 mm dia. Max. insertion depth 400 mm. With test unit and test method HR 62.5. Incl. spring link with diamond indenter and dial gauge. Measurement value indication HRC.


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N7

N7 high efficiency and low-cost hardness testing in the field
N7P
Portable tooth flank hardness tester for module 3-35.Max. tooth measuring range 700 mm. Pitch dia. up to 2000 mm. With test unit EMN1E000 and with test method HR 62.5. Incl. spring link with diamond indenter and dial gauge. Measurement value indication in HRC.

N7F
Portable tooth flank hardness tester for module 2-10. Max. tooth measuring range 140 mm. Pitch dia. 30 - max. 400 mm. With test unit EMN1E000 and test method HR 62.5. Incl. spring link with diamond indenter and dial gauge. Measurement value indication in HRC.

Struers’ equipment is in conformity with the provisions of the applicable International Directives and their appurtenant Standards.
Struers’ products are subject to constant product development. Therefore, we reserve the right to introduce changes in our products without notice.

Technical Data

N4/N6/N7 Technical Data Sheet

Struers Technical Data Sheets are designed to help you make the best choice of equipment for your particular purpose. You can find important information such as capacity and performance specifications, dimensions, weight, electrical data, noise levels, ambient conditions and safety. In many cases you can also obtain an overview of accessories offering higher capacity and performance.

Download Technical Data Sheet
Technical Data Sheet

Application specialists

The fast track to expert knowledge…

Correct preparation solutions

True structures require proper correct applications. Different material properties require broad application knowledge. Struers Application Specialists are experts in optimising preparation methods, because application knowledge is necessary to select the correct preparation solutions. Your material – our application solutions.

Birgitte Nielsen
Application Specialist, Struers ApS

Go to Knowledge

M8 Quote Birgitte

MEET SOME OF OUR CUSTOMERS

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My relations with Struers date back over many years. The reason is their competent advice, the good service and their use of our application laboratory in the case of difficult questions that are best resolved on-site. WWU Münster, Institut für Planetologie Ursula Heitmann Mineral Specimen Preparer
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The backbone of our quality assurance programme, our Struers laboratory promotes ease of use, resulting in high output and efficient use of our human resources and huge time savings. In my opinion, Struers equipment provides the most efficient and consistent method for examining the quality of our fastener products. Ideal Fasteners Pty. Ltd. (Australia) Neville Deutscher Managing Director
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XPS Consulting & Testwork Services is a licensed metallurgical engineering and testwork business that includes mineralogical and materials characterization. We have used Struers’ sample preparation equipment and lab consumables for almost 20 years and are very satisfied with the quality of the products and the support they provide to us. As a consulting firm, we strive to produce the highest quality results for our customers and the Struers’ products have assisted us in reaching that goal. XPS Consulting & Testwork Services (Canada) Patricia Stack Mineral Science Department