Lutco utilizes two state of the art 4000 lb computer controlled batch carburizing
furnaces in line with tempering and washing capability. All heat treating is done
in house in order to control consistency and part quality.
To ensure proper part hardness Lutco’s sampling plan is to mount and check surface
hardness through a range of scales using a Mitutoyo HR500. SPC information is provided
Case depth is also checked regularly using a Mitutoyo HM200 microhardness tester
on a Rockwell C scale.