Versitron® Rockwell Hardness Tester  The Versitron Rockwell hardness testing system is the workhorse of hardness testing - designed to meet the toughest challenges: clamp large parts, operate in poor environments, and test high volumes - all with less service problems and less operator skill requirements.  Available with 4 different test stands types (in a range of sizes) and 2 test heads and also a wide range of other options	Indentron®  Rockwell Hardness Tester  A high-accuracy deadweight Rockwell hardness tester that is designed for lab testing. Unique design eliminates frictional inconsistencies. Even tests inside diameters without fixturing. Regular, superficial and combination units available to operate in all Rockwell scales in regular and superfficial Rockwell ranges. Available in several capacities	Low-Cost Digital Hardness Tester The ME-2 system is an economical Rockwell hardness tester that is easy to calibrate, rarely requires service and provides good accuracy. Available in analog, basic digital, & advanced digital.

Rockwell Hardness Tester  For end-quench hardenability testing on Jominy samples - manual positioning fixtures (above) to automatic multi-specimen jominy sytems.	Dataview®  Data Collection Software for Hardness Testing. The only hardness-testing-specific data collection software.  DataView is designed for uploading hardness testing data to a PC. Includes special features like scale conversion, minimum thickness and round correction.

Rockwell Test Method, Part 1

The Rockwell test method is defined in ASTM E-18 and is the most commonly used hardness test method since it is generally easier to perform and more accurate than other types of hardness testing. Rockwell hardness testers can be used on all metals except in conditions   where the test metal structure or surface conditions would introduce too much variation, where the indentations would be too large for the application or where the sample size or shape prohibits its use.

The test method measures the permanent depth of indentation produced by a force on an
indenter. First, a preliminary test force (A), also called pre-load or minor load, is applied to
a sample using a diamond indenter. This is the zero or reference position that breaks through the surface to reduce the effects of surface finish. Then, an additional test force or major load (B) is applied to reach the total required test force. This force is held for a predetermined amount of time to allow for elastic recovery of the metal (C). The additional test force is then released and the final position (D) is measured against the preliminary position and converted to a Rockwell hardness number.

Rockwell-Scale Hardness Tester Indentations