Rockwell Hardness Tester in Action!

[@melgross]

Rockwell “C” uses the 150 KG setting only. The 100 KG weight is for the “B” Scale, and the 60 for the “A” scale. Then, with either a convex or concave sample, you have to refer to the conversion charts to get the proper number. Additionally, you can’t use the “C” scale for softer materials, under 20 Rockwell. That’s what the “B” scale is for. Also, you need to remove the chrome before you test a plated item, and the surface needs to be smooth. The other problem is that buying it used likely meant that the wood blocking inside to hold the delicate weights and such in place during shipping, weren’t there. So you need to calibrate it before you start measuring actual parts. Before all of that, the table it’s on needs to be stable, with no rocking, and has to be leveled. You need to read the manual and understand how this works properly before you do a video for others.

[@CelepukEmplep]

Can you tell me how to calibrate? I have same this tester, but i confuse to calibrate

[@greasydot]

Thanks for explaining the hardness checker.. I wish I had one of the small shapers you parted company with. Digging your new shop. A little at a time man.

[@precisionmachineshed]

Thanks, Those smaller shapers worked, but with limited capacities. I have several projects lined up for this one once it gets running. I'm looking forward to getting my shop finished so I can start machining again.

[@georgedreisch2662]

Realize this video goes back a bit, but, have you gained any wisdom regarding the calibration on this hardness tester? I’ve got the same unit, I got for $150. The table it was mounted to, was worth that. It didn’t have a manual, and I haven’t had any luck finding any information regarding calibration, which is very obviously off. Good to see another -03 Springfield person…

[@1jtolvey]

ROCK-ON !!!

[@primsolllineguy8689]

Nice video, mostly correct. I wrote the curriculum for this tool if you want an instruction manual or help let me know. A few things that folks do not know about this tool. I can walk you through it over the phone.

[@CelepukEmplep]

Can you tell me how to calibrate? I have same this hardness checker, but i confuse to calibrate

[@damiano5130]

Hi! In the first hardness test, what's the right value in HRC scale? Thanks!