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Precision MACHINING Specialists

Centerless Grinding

Given the speed of material removal and reduced set up, centerless grinding is an efficient alternative to precision turning and milling processes for external cylindrical features, and achieves precision size, surface finish, and roundness requirements.

Single diameter components in small to mid size runs are offered very competitively by utilizing the thrufeed grinding method, whereby the part is ground while continuously traveling through the grinding and regulating wheels, automatically exiting the work zone. Multiple diameter parts can also benefit if the ground surface is the largest diameter and comprises most of the overall length. Alternatively, thrufeed grinding may be paired with infeed grinding or other grinding methods to obtain final specifications.

During infeed grinding, the part is held between the wheels at a constant axial location, considering multiple diameters, radii, tapers, steps, and/or faces are being ground simultaneously to ensure their geometric relationships. This process may also be referred to as crush form grinding, since the grinding wheel is dressed by having to-be-ground features crushed, or formed, into it.

Capabilities
Length: to 20", approx.
Diameter, OD: to 8", approx.
Tolerance: +/- 0.0001"
Finish: 4µ Ra
Features
Grooves, Flats, Slots
Specialty Forms
Tapers
Undercuts
 
Materials
Steels, plated, hardened Aluminim
Brass & Bronze
Tungsten Carbide & Titanium Hastalloy & Inconel
Powdered Metals
Plastics

Applications
Dowel Pins
Contactors & Electrodes
Shafts & Shelves
Industrial Needles


 

 

 

 

 

 

 

 

 

 










Profile can help you increase the value and function of round commodity parts- such as off-the-shelf dowel pins, by centerless grinding custom flats and slots. Or, turn commodity fasteners- like bolts, into your specialty fasteners, by reducing their shanks for clearance or incorporating shear pin features.

We've also produced centerless ground forms some said weren't possible, like a very small engine valve, and excel at efficiently thrufeed grinding tungsten parts and grinding forms into tungsten blanks. Contact us today to discover how centerless grinding may work for you!

Centerless Grinding Cobalt Chromium Medical Hinge Pin


Centerless Grinding Equipment List
3 #2 Cincinnati OM Diamond Roll, NC controlled
2 Cincinnati Cinco 15, NC controlled
3 #2 Cincinnati AE
1 Cincinnati OM Infeed/Thrufeed, NC controlled
2 #2 OM Cincinnati w/ Pneumatic Infeed
1 #3 Cincinnati Infeed
1 #3 Cincinnati Thrufeed
1 Royalmaster Thrufeed
1 Cincinnati Cinco 15 Infeed, NC controlled w/ CNC diamond
   dresser (multi-step CNC cylindrical profile grinding of
   diameters, angles, and length)






Profile has mastered centerless grinding forms into tungsten carbidePoppets and sleeves centerless ground after heat treatment. At bottom, a stainless steel shaft. Profile has mastered centerless grinding forms into tungsten carbide
Diameters of this self-propel lawnmower shaft infeed ground within +/- 0.001" and within 0.00025" for roundness.

ODs of motor valve stems and specialty fasteners centerless ground, as well as the OD and slot of this dowel pin
ODs of motor valve stems and specialty fasteners centerless ground, and at top, the OD and slot of a dowel pin.
Profile has mastered centerless grinding forms into tungsten carbide
Profile has mastered centerless grinding forms into tungsten carbide

18 - 20mm long dental burs of hardened steel centerless ground to obtain precision diameters. The opposing ends will undergo diamond coating before use.

Quality Products, On Time, as Promised

Contact Us Today

Quality Products, On Time, as Promised

Contact Us Today