Centerless Grinding

Having mastered both the art and science of centerless grinding, our ability to produce expert-quality results on the most difficult applications is second to none. Every day, we grind sub-micron tolerances on diameters, complex geometries, and intricate part features previously thought unattainable. When there is no margin for error, choose us to get it right.

Our Centerless Grinding Services

We are not just another grinding shop. We are a passionate team of smart solution finders obsessed with every detail. Besides producing a reliably high level of quality work, our ultra-precision centerless grinding services always come with an unmatched level of responsiveness attuned to your needs. We listen, understand, and thoughtfully communicate – it’s what we love to do.

Ultra-Precision Centerless Grinding

Our ultra-precision centerless grinding capabilities hold tolerances on diameter size and cylindricity to the sub-micron level, helping to eliminate tedious and expensive ring-lapping operations on match-fit requirements. In addition, we strive for six-sigma capability and use only the most advanced technologies in CNC grinding equipment to ensure accuracy for your most demanding specifications.

OD tolerances to ± .00002″ (.5 micron)
Roundness to .000015″ (.35 micron)
Surface finishing to < 2 Ra (.05 micron)
Diameter sizes to .750”
Lengths to 10”
We work with ANY material

Precision Centerless Grinding

Our precision capabilities combine exceptional talent with state-of-the-art technology and innovative processes to elevate the traditional industry standards. With unsurpassed expertise in both precision Thrufeed and Infeed centerless grinding, we produce consistent dimensional tolerances and straightness designed to surpass your expectations.

Diameter capacities
- Thrufeed: .005″ (.127mm) to 2.50″ (63.5mm)
- Infeed: .014″ (.355mm) to 14″ (355.6mm)
Lengths to 14 ft (4.267m) **(14 ft length limited to bars <=.75” (19mm) diameter)
Standard tolerances to +/-.0001″ (2.5 microns)
Ultra-precision tolerances to +/-.00002″ (.5 micron)
Precision bars ground for Swiss-screw machines with tolerances to +/-.0001″
Finishes to < 2 Ra (.05 micron)
All materials, including glass, M2, Tungsten, Titanium, and Nitinol, etc.

Hybrid CNC Centerless Grinding

Our hybrid CNC centerless grinding capabilities provide exceptional solutions for “problem” parts that our competitors have declined. Anything but traditional, our expert hybrid CNC centerless grinder capabilities allow us to work with materials and part configurations not easily managed by conventional methods, illuminating the way for extremely intricate forms and micro-sized parts.

CNC OD and CNC ID Grinding
Super-thin (.001″) wall thickness on OD/ID grinds without crushing the parts
Diameter tolerances to +/-.00005″ (1.2 microns)
Diameter range: OD – .003″ to 2.50″, ID – .060″ to 2″
Micro parts (ODs)
Finishes to 2 Ra (.05 micron)
All materials, including glass, M2, Tungsten, Titanium, and Nitinol.

Guidewire Centerless Grinding

Using innovative grinding techniques, we solve many capability and cost-related challenges with guidewires. We thrive on pioneering methods to satisfy extremely small diameters (<.002”) and intricate configurations. Through advanced technologies and seasoned expertise, our guidewire grinding services produce wires and stylets for devices used in aneurysm coiling, clot extraction, CRM, interventional cardiology, angioplasty, neuromodulation, thrombus busting, extraction, and more.

Diameter tolerances to +/-.0001”
Ground length tolerances to +/-.005″
Wire lengths to 15 ft+
Steps, tapers, ball ends, back tapers, tight corner radii, paddles, flats, etc.
Long grind lengths up to 48” (1200mm) in ongoing production
Concentricity of ground features to sub-micron tolerances
Range of materials, including SST, NiTi, MP35N, precious metals, and additional “exotic alloys,” like Inconel, and Hastelloy.

Multi-Axis CNC OD/ID

We tackle the most demanding sub-micron tolerances for concentricity and runout through our ability to grind multiple part features (OD’s, ID’s and faces) in one chucking. We control diameters to the same tolerances with in-process gauging, and grind non-round shapes/features to highly precise geometries and tolerances.

Multiple part features in one chucking
Eccentric and Non-Round grinding – shapes and non-round features generated by interpolation of the grinding wheel
Diameter range: OD to 14”, ID to 7”
Length range: OD to 40” Long, ID to 7” Deep
Diameter tolerances to +/-.00005” (1.2 micron)
Finishes to 2 Ra (.05 micron)
Wide range of materials