CNC Grinding

Precision Grinding

Components having complex geometries or featural relationships which cannot be managed by the centerless grinding process lend themselves well to precision CNC ID/OD grinding, although, given its broader scope of set up, is generally less economical then the centerless method.

Precision ID/OD grinding provides better part-to-part consistency over similar, alternative turning processes, especially for parts with size, roundness, concentricity, and surface finish requirements.

CNC ID/OD grinding also offers the ability to grind a component’s internal features.

Profile specializes in precision cylindrical grinding– that is, precision grinding inside diameters (IDs) and outside diameter (ODs) of cylindrical parts, excelling at those with multiple features, such as grooves, radii, and tapers. In some cases, form grinding may be utilized, where the component’s profile is formed directly into the grinding wheel.

We utilize workholding methods which obtain efficient material removal for each part feature, while maintaining repeatable accuracy. These include internal (ID) grinding and external (OD) grinding workholding, as well as between-centers workholding.

Between-centers workholding provides support of the workpiece, particularly for components with high diameter-to-length ratios. However, designing centers into almost any cylindrical part will likely improve quality and cycle time if they allow all ground features to be processed in one operation rather than several.

Face grinding and limited surface grinding and honing services are also available should specifications demand.

Contact us today to discover the value CNC Precision Grinding brings to your component!

Length: to 20”, approx.
Diameter, ID: 0.25 – 4.0”, approx.
Diameter, OD: to 6”, approx.
Tolerance: +/- 0.0001”
Finish: 8µ (microinch)
Specialty Forms
Steels, plated, hardened
Brass & Bronze
Tungsten Carbide & Titanium
Hastalloy & Inconel
Powdered Metals
Bearings & Bushings
Shafts & Sleeves
Valves & Pistons
Industrial Needles & Nozzles

1 Mitsubishi RD23 OD Grinder – 4” diameter and 10”
length capacity
2 Supertec G25P-50 OD Grinder – 6” x 18” table

1 Okuma GU-34 Universal OD Grinder – 6” x 24” table
with optional ID work head
4 Okamoto IGM-NC15 ID/OD Grinders – 8” diameter and 8”
length capacity

CNC precision ground parts of heat-treated, chrome-plated, and light weight aggregate steels. 0.300” - 3.000” dia.
The tip of this 2.5” long, chrome-plated, steel needle has a precision ground 0.003” diameter flat.
Stainless steel poppets, stems, and guides precision machined using CNC Precision Grinding technology
Multiple diameters of industrial needles and shafts remain concentric using CNC Precision Grinding process