Portable Hardness Testers

[1Khaleel]

We'd like to test the hardness of a generator shaft after a shrink fit assembly. The generator is about 200kg and is difficult to test on a regular Rockwell tester. I'm considering renting a portable hardness tester but have no experience with them. Are they reliable? How accurate they are? Any specific types or brands you can recommend? Thanks.

 

[arunmrao]

On machined surfaces the portable hardness testers work well. To check reproducibility and accuracy standard blocks are available along with the tester.

This service is largely provided by the NDT agencies in India,overseas too it might be the same.

Equotip is one such brand .

http://www.proceqasia.com/en/index.php

 

[ndeguy]

http://www.geinspectiontechnologies.com/en/products/hardness_testers/index.html

Krautkramer/GEIT produce very high quality equipment.

Nigel Armstrong
Karachaganak Petroleum
Kazakhstan

 

[dbooker630]

The Equotip is a good choice. I have used it on large forging dies and large shafts such as yours with good results. Check out

http://www.procequsa.com

for more details.

 

[patdaly]

What is your accuracy requirement?

I use a portable kit from :

http://www.mcmaster.com/

It is part number 1342T13 and currently sells for just under 700 bucks. Its advertised accuracy is +/- 1.5 HRC

It's accuracy is highly dependant on your eyesight, but I would say I can determine within 2 points fairly easily.

I have found it to come up with readings very close to my regular machine.

 

[1Khaleel]

Thank you for the responses. I also found another company that specializes in portable testers:

http://www.amesportablehardnesstesters.com/

Now I have to sell the idea to my manager. Thanks.

 

[Yallapragada1022]

I have been using Equotip portable hardness tester for last 9 years and strongly recommend it.



Rao Yallapragada

 

[kenvlach]

This company (New Age) has a full line of hardness testers. Probably very good; in business 50+ years & advertise in ASM Int. magazines:

http://www.hardnesstesters.com/default.htm

Browse their site for hardnesss testing info & ISO qualified testing.

 

[Goahead]

A true Brinell portable Hardness Tester is manufactured by
King Tester Corp.

http://www.kingtester.com/

True AMES Rockwell portable hardness testers are manufactured by ElectroArc

sales@electroarc.com

Regards,

http://www.welding-advisers.com/

 

[erssk]

We have found the telebrinell hardness testers to be the most reliable and cost affective portable hardness testers for field work.

 

[bruv]

We have had problems in the past with Equotip and Telebrinell testers. These have risen mainly from people trying to use them when the work piece is not big enough or well supported.

We have also experienced people using the machine on an alloy which does not have a hardness conversion scale available, and so getting some very wrong hardness values and rejecting material as a result of this.

You should be OK if you follow the instructions, and are working with carbon and low-alloy steels.

 

[1Khaleel]

Gentlemen, I've rented a Krautkramer Dynapocket and it worked fine for the parts that we tested. Thanks for all your replies and suggestions.