Thrufeed Grinding

Centerless grinding is classified into two types:

Thrufeed grinding - the workpiece is fed into the machine along the work blade
Plunge grinding - the workpiece is placed between the wheels on a work blade and the grinding wheel is plunged into the workpiece.

Some of the benefits of centerless grinding include the ability to grind parts with geometries that do not allow them to be OD ground, the ability to remove three, five and other odd numbered lobing on the shaft of a part, and to maintain size beyond what is typically capable of an OD grinder due to the low overall pressures spaced out along the workpiece.

• Cincinnati and Landis machines
• Grind from .040 - 3.00 inch diameter
• Barstock or parts
• Hold tolerances of .0002"
• Grind to a 12 RA surface finish on parts