Myths Surrounding Ernst by King Rockwell Testers

CaseRock:

Fiction: The CaseRock costs too much.

Fact: The CaseRock is an investment. Effective case depth measurement used to take 45-60 minutes, now the measurement takes one minute and is nondestructive and test pieces do not need to be prepared. The CaseRock drastically increases efficiency and productivity.

PortaRock L and PortaRock H:

Fiction: The PortaRock L and PortaRock H do not adhere to ASTM E-18 standards.

Fact: No portable Rockwell tester adheres to the ASTM E-18 standard but it does adhere to ASTM E-18 indirectly as a Rockwell tester.

Fiction: I cannot have a PortaRock L or PortaRock H because I cannot have Bluetooth technology in my workplace

Fact: While the new PortaRock L and PortaRock H are Bluetooth, there is another model that does not utilize Bluetooth.

Fiction: There is no way a tester as small as the PortaRock L and PortaRock H can have the same accuracy as a bench tester.

Fact: This might be true in some cases, but the PortaRock L and PortaRock H are designed and built to deliver a test that has the same accuracy as a bench unit.

Fiction: The Leeb tester is just as good.

Fact: The Leeb does not leave an indentation so there is no reliability or repeatability. The Leeb uses force of a rebound to give a ballpark estimate of the hardness. The PortaRock L and PortaRock H are superior units with a spring load cell, which is the most accurate and durable load application.

Fiction: The PortaRock L and PortaRock H do not meet the standard because they are unable to deliver a 100kg load.

Fact: The PortaRock H delivers a 100kg load. The PortaRock H carries load requirements for all Rockwell scales lower than Rockwell C. The PortaRock L is designed to deliver a 5kg load to accommodate softer metals.