Before grinding
Review whether the incoming bar needs straightening as part of the plan for its finished diameter and surface.
Bar straightening
Straight bars.
Ready for what’s next.
Prepare bar stock around the straightness your next operation requires. K-O reviews the incoming material, finished condition, and measurement method before the work begins.
Bar preparation with a purpose
Straightness is part
of the specification.
Diameter alone does not describe a bar. Bow, material condition, and the length over which straightness is checked also matter when preparing stock for machining or assembly.
K-O includes straightening in bar-processing programs, with the route reviewed against your starting condition and finished requirement. Tell us how the bar will be used and how straightness must be verified.
Incoming conditionSpecified straightnessNext-operation requirements
Before machining
Prepare material around the straightness and handling requirements of your next manufacturing operation.
Before delivery
Define the agreed checks, identification, and packaging so the bar arrives with its requirements clearly documented.
What to include
Define the requirement.
Then plan the work.
A straightness value needs context. The measurement method, checked length, and incoming condition help establish what your program needs.
- Material & condition
- Exact grade, heat treatment or hardness condition, and any material certification requirements.
- Bar geometry
- Diameter, overall length, quantity, and the available information about incoming bow or runout.
- Straightness check
- Required limit, measurement length, support arrangement, and inspection method. Identify whether your drawing calls for TIR.
- Surface & sequence
- Surface-finish requirements, handling restrictions, and whether grinding, cutting, or machining will follow.
A clear processing plan
From incoming bar
to an agreed result.
Keep preparation, measurement, and the next operation connected within the same program.
Review the starting point
Share the bar specification and incoming condition. We establish the straightness requirement and how it will be checked.
Plan related operations
Sequence straightening with grinding, cutting, and end preparation according to the finished requirements.
Verify and prepare for delivery
Use the agreed inspection and identification requirements, then arrange handling and packaging for the next step.
More of the work, connected
Build the program
around your part.
Bring related operations into the same conversation. Every project is managed through K-O’s quality system, with the requirements agreed for the work.
Centerless grinding
Bring diameter and surface finish into the same bar-processing plan.
Explore precision grindingSaw cutting
Prepare the lengths needed for production, handling, or delivery.
Explore saw cuttingMaterials
Review material families and send the exact grade and condition for your program.
Explore grinding materialsA few useful answers
Before you
send the inquiry.
Is straightness the same as diameter tolerance?
No. Diameter tolerance controls the bar’s outside size. Straightness describes its deviation along a specified length; the measurement method and supports need to be defined with the requirement.
Should straightening happen before or after grinding?
The sequence depends on the incoming condition and finished requirements. Send both the straightness and grinding specifications so K-O can review the processing route as a whole.
Can I send my own bar?
Yes. K-O supports customer-supplied bar and can also source material for a program. Include the grade, condition, dimensions, and available certifications with your inquiry.
Let’s review your project
A straighter route
starts with the details.
Send the material grade, diameter, length, incoming condition, required straightness, and inspection method. Include your quantity, schedule, and any operations that need to follow.