Cylindrical O.D. Grinding Department

We Are Here For You

Welcome to our Cylindrical O.D. Grinding Department’s page. We are glad you are here. For over fifty years we have been providing high quality precision grinding services for a wide variety of customers in different industries. In fact, the best quality, continual improvement, and looking for ways to provide value for our customers are at the center of everything we do.

We also understand you have other options. And that is okay, because we want to be the right fit for your precision grinding needs.

This is why our O.D. Department is always looking for new ways to be better, more efficient, more knowledgeable and more flexible than our competition.


 

ISO 9001:2008 Certified Precision Cylindrical O.D. Grinding

ISO 9001:2008 Certified

We are an ISO 9001:2008 Certified Precision Grinding Shop. This means we have a quality management system in place that is based on international standards.

CNC O.D. Precision Grinding Equipment

O.D. Grinding Equipment

Manual and CNC Cylindrical O.D. Grinding equipment list.

Lapping Centers

Center holes need to be lapped to remove any imperfections.

Center Hole Grinding for Cylindrical OD Grinding

Center Hole Grinding

We can also grind center holes. In some instances center holes have to be ground to meet the desired results for circularity, concentricity, runout, or cylindricity.


 

Cylindrical O.D. Grinding Capabilities

Where Technology Meets Craftsmanship

Our O.D. Cylindrical Grinding Department can grind parts from 0.032” to 18 inches on diameter by 60 inches long.

We have a combination of manual and C.N.C. grinding equipment.

In fact, all our C.N.C. cylindrical grinders are equipped with Marposs in-process sizing gages, edge locator (probe), and automatic grinding wheel balancing systems.

As a result, this allows us, for example, to do profile grinding. Profile grinding is a process of finishing multiple diameters, faces, angles, and/or radii on one plunge. In short, implementing profile grinding allows us to have full control of all individual features.

With the implementation of these technology we can achieve the highest quality at a competitive price.

Trained Professionals

Our Cylindrical O.D. Grinding Specialists are trained to do most of their own setups and C.N.C. programs.

They are also trained to know how to read a variety of blueprints and understand all symbols involved.

Most of our Grinding Specialists have also taken blueprint reading and GD&T classes, as well as communication, leadership, management, and team building seminars.

Experience You Can Measure

All of these help us stay ahead of the competition. We have been in business for over 50 years. And for those 50+ years we have provided our customers with the best quality service they deserve and need.

Request a Free Quote Today!

Let us know how we can help you with your Precision Cylindrical O.D. Grinding needs.
Gives a call at (630) 250-8950 and ask for Mike, Herminio, or Ed.

Free Quote

Cylindrical OD Grinding Capabilities.

Minimum OD Diameter0.032"
Maximum OD Diameter18 inches
Max. Plunge Diameter Width6.250"
Minimum Part Length0.062"
Maximum Part Length
Between Centers
60 inches
Surface Finishes 3Ra and up
CNC ControlsYes
Profile Grinding Yes
In-Process GageYes
Automatic Wheel Balancing SystemYes
Live Head StockYes
Locator Probe (Flag)Yes
Traverse Grinding Yes
Seal Diameter Grinding
With No-Lead Surface
Yes

Cylindrical O.D. Grinding With Profile

Here is an example of how we can use profile grinding to grind multiple diameters, radii, and faces. The benefits of profile grinding are shorter cycle times, eliminates the need for multiple setups. In most cases concentricity and runout between ground diameters is less than 0.00005. Different surface finishes on diameters, faces, and radii can be controlled in the truing/dressing program. No need to have an operator take the part in and out of the machine multiple times

In this instance 2 diameters, 2 faces, and 2 radii were ground with one plunge.

Mitsubishi PD32 CNC O.D. Grinder

This machine is equipped with Marposs in-process sizing gage, locating flag, and automatic grinding wheel balancing system.
Grinding capacity is Ø13.5″ by 40 inches long.
This machine has the following processes to choose from:

 

 

  • Plunge grind
  • Circle (radii) grind
  • Traverse grinding
  • Taper grinding
  • Locate
  • Shoulder grinding
  • Profile grinding

Mitsubishi RD32/500 CNC O.D. Grinder

This machine is equipped with Marposs in-process sizing gage, locating flag, and automatic grinding wheel balancing system.
Grinding capacity is Ø13.5″ by 20 inches long.
This machine has the following processes to choose from:

 

  • Plunge grind
  • Circle (radii) grind
  • Traverse grinding
  • Taper grinding
  • Locate
  • Shoulder grinding
  • Profile grinding

Mitsubishi RD23 CNC O.D. Grinder

This machine is equipped with Marposs in-process sizing gage, locating flag, and automatic grinding wheel balancing system.
Grinding capacity is Ø12″ by 13.5 inches long.
This machine has the following processes to choose from:

 

 

  • Plunge grind
  • Circle (radii) grind
  • Traverse grinding
  • Taper grinding
  • Locate
  • Shoulder grinding
  • Profile grinding

 

OD Grinding Repair Services

We offer repair services and most of the repairs are done by our O.D. Grinding Department. We can recondition live centers and dead centers to original manufacturing specifications. We repair ball screw bearing diameters. When a ball screw isn’t properly lubricated, or maintained. The bearings start making noise, producing vibration, until it eventually fails.

Here Are the Typical Steps We Take to Repair a Shaft, Spindle, or Ball screw:

  1. We receive the part(s) with instruction of which features need repairing
  2. If there are any questions, we call our customer to make sure we avoid any misunderstandings
  3. An AutoCAD sketch is created with the original measurements of the features that need repairing as well as any relevant information
  4. The part is check for excessive runout, bending, burning, cracking, etc.
  5. The part is ground as needed
  6. The AutoCAD sketch is sent with the part with instruction for outside services such as chrome plating to minimize misinformation and retain detailed records of the processes needed.
  7. After the part returns from, in this case chrome plating, the part is ground to the original dimensions or to fit customer-provided mating part.
  8. All chamfers, radii, or faces are also ground as required
  9. Inspection is performed and recorded
  10. Customer is notified that part is finished

Lapping and Grinding Center Holes

Why is Lapping Center Holes Important?

Lapping the center holes on parts that need grinding is important because to be able to hold size, concentricity, circularity (roundness), cylindricity, runout, etc. depend on the quality of the centers holes the part is going to be rotating on. We lap centers on almost 100% of the jobs we run between centers.

Bryant Super-Precision Center Hole Grinder

When lapping center holes can’t achieve the required results, grinding the center holes is another more accurate, but pricier option. In some instances, parts can be bent or warped during the heat treatment process and therefore the center holes are affected and grinding the center holes may be required. Whenever this is the case we let our customers know the situation and available options so they can decide.

Contact Us Today For Your Free Quote

Contact Mike, Ed, or Herminio to get your questions answered today.

Send Your RFQs

Contact Us Directly

Michael Kmiec

Plant & Operations Manager

mkmiec@grindal.com

Ed Jean

Operations Manager Assistant

ed@grindal.com

Herminio Llamas

Methods Technician & Shop Leadman

hllamas@grindal.com

Jorge Chinchilla

Quality Control Manager


jorge@grindal.com