CNC Precision Grinding Services

Faster cycle times and tight tolerances on coated and uncoated parts.

Precision Grinding

CNC Grinding Services for Thermal Spray Coatings

HFW Industries provides CNC precision grinding services with faster cycle times and tight tolerances on coated and uncoated parts.

Programming a CNC cylindrical grinder still depends on the same judgment a manual grinder calls on: material hardness, coating thickness, heat buildup, and wheel wear. The CNC grinder applies that judgment through software instead of a hand wheel.

  • CNC cylindrical grinding for repeatable finishing and faster turnaround
  • 12-inch swing, 80-inch centers, and 660-lb capacity
  • Coated and uncoated shafts, rolls, journals, bearing areas, and seal surfaces
  • Standalone grinding or grinding as a complement to thermal spraying, hardfacing, and machining

CNC precision grinding is part of HFW's larger grinding department in Buffalo, New York, which has been doing precision grinding work since 1950.

A large share of what comes through HFW's CNC grinder has already been through a coating booth. Tungsten carbide and chrome carbide applied by HVOF are harder than the base metal they sit on top of. Grinding that surface to a fine finish without burning it, losing coating integrity, or missing tolerance is different from grinding bare steel. HFW sees this combination often enough that hard coating over a softer substrate is routine work for the grinding department.

Precision grinding a coated turbine shaft at HFW Industries
Precision grinding a coated turbine shaft

FAQ

CNC Precision Grinding Questions

What CNC grinding tolerances can HFW hold?+

Tolerance depends on geometry, material, coating type, workholding, and inspection requirements. HFW can hold tolerances as tight as 0.0002 inches on qualified critical features.

Can HFW grind thermal spray coatings?+

Yes. HFW grinds HVOF tungsten carbide, chrome carbide, ceramic, plasma spray, and other coated surfaces to final diameter and finish.

Need a CNC Grinding Quote?

Send drawings, photos, material, coating requirements, tolerances, surface finish, and timing. HFW will help define the right grinding path.