Precision Straightening Services

Uncompromising Straightness for Critical Applications

At Centerless Products, we understand that straightness isn’t just a specification—it’s the foundation of efficient manufacturing. Whether you’re running high-precision Swiss turning operations or demanding CNC work, even minor deviations can cascade into costly downtime, tool wear, and rejected parts. That’s why we’ve built our reputation on delivering precision straightening services that meet the exacting standards your applications demand.

In Swiss turning and high-precision machining, material straightness directly impacts :

• Cycle times – Straight bars feed consistently without interruption
• Tool life – Reduced vibration and deflection minimize tool wear
• Part quality – Dimensional accuracy begins with accurate stock
• Machine uptime – Fewer jams, crashes, and adjustments

We know that in precision manufacturing, “close enough” doesn’t cut it, and that straightness is just as critical as OD tolerance and roundness. That’s why our straightening processes are designed to deliver the reliability your operation depends on.

Our state-of-the-art straightening equipment handles a comprehensive range of materials and geometries:

Rotary Straightening ( 2-Roll Type )

• Bar, tube, and wire materials
• Diameter range : From 0.020” to 1.500″ outer diameter
• Precision tolerance : To 0.002″ per foot on 12′ bars
• Accommodates small-batch through high-volume production

Press Straightening

• Blanks, shafts, precision components, and heat-treated parts
• Diameter range : Up to 4.000″ outer diameter
• Length : Shafts and blanks up to 72” in length can be accommodated
• Perfect for challenging geometries, hardened materials, or complex bends

We routinely straighten materials up to approximately 300 KSI tensile strength, including fully heat-treated components that other facilities cannot accommodate.

Our straightening processes are optimized for virtually all ferrous and non-ferrous materials:

• 300/400 Series Stainless : 303, 304, 316, 316LVM, 416, 420, 440, etc.
• Precipitation Hardening Grades : 17-4, 15-5, 13-8, 455, 465, etc.
• Carbon & Alloy Steels : 1018, 1045, 12L14, 4140, 52100, 8620, 9310, Stressproof^® etc.
• Tool Steels : Most common grades
• Aluminum : 2011, 2017, 2024, 6061, 7075, etc.
• Titanium : 6Al-4V, 6Al-4V ELI, CP Grade 2, etc.
• Red Metals : Copper, brass, bronze
• Superalloys : Nickel-based and cobalt-based materials

Beyond our own precision stock, we offer contract straightening as a standalone service—a solution that can save you significant time and money.

Turn Problems Into Profit

Received material that’s out of spec? Don’t wait weeks for mill replacements or write off valuable inventory. Our precision straightening service can salvage bars that would otherwise be rejected, transforming mill errors or shipping damage back into perfectly usable material.

For Steel Service Centers & Distributors

Do you have a discerning customer who requires flawless bar stock on every order? Trust Centerless Products to be your backup plan. When you need to guarantee straightness on critical orders or recover from unexpected quality issues, our expertise ensures you can deliver on your promises—every time.

Verified Straightness You Can Trust

We don’t rely on outdated methods like rolling bars on the floor. Instead, we use proprietary inspection fixtures specifically designed for long bar straightness verification. Shorter pieces are inspected on large granite surface plates using precision v-blocks, test indicators and feeler gauges. When we certify straightness, you can count on it.

Fast, Reliable Turnaround

We understand that downtime costs money. That’s why we offer:

• Standard lead times : Typically 3 to 5 business days
• Emergency service available for critical production needs

For operations that demand consistent, reliable straightness right out of the box, our TrueSwiss Precision Stock is always straightened to 0.006″ per foot TIR or better. This is the material Swiss machinists trust when setup time, tool life, and first-piece accuracy matter most.

Unsure if your material can achieve the straightness you need? Working with a challenging alloy or heat- treated component? Our experienced technical team can assess your specific requirements and provide honest guidance on what’s achievable. We’ll review your material specifications, current condition, and target tolerances to recommend the best solution—or let you know if alternative approaches might be needed.Contact us today for expert guidance on your project.

Ready to experience the Centerless Products difference? Contact us today to discuss your straightening needs or request a quote for TrueSwiss Precision Stock.