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News + Insights

Mastering Precision Machining:  Perfecting Honing with an Integrated Approach
Blog

Mastering Precision Machining: Perfecting Honing with an Integrated Approach

Honing is a precision manufacturing process that plays an increasingly vital role across industries, driven by the growing demand for cylindrical bores with ultra-tight tolerances and flawless surface finishes.

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Hydraulic Cylinders Reconditioned with Low-Cost Honing System
Case Study

Hydraulic Cylinders Reconditioned with Low-Cost Honing System

Hydraulic Cylinders Reconditioned with Low-Cost Honing System — Machine Pays for Itself in Less Than a Year

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Gun Barrel Honing System Hits Bullseye for Pac-Nor
Case Study

Gun Barrel Honing System Hits Bullseye for Pac-Nor

Manufacturing precision rifle barrels has always been something of an art that involves hand lapping of the bore surface twice, before and after the rifling profile is cut or swaged in by a rifling button.

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Blog

SHD Skiving Roller Burnishing Machine at Prince Manufacturing

Prince Mfg. Corp., North Sioux City, S.D., makes a variety of components essential to hydraulic systems: pumps, valves, and cylinders—especially cylinders.

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Single-Pass Honing is Single Solution for Cloyes
Case Study

Single-Pass Honing is Single Solution for Cloyes

What's not to like about a machining process that hits print tolerances with adjustment-free, 1.67 Cpk capability, while running 4000+ parts per day, six days a week?

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Smart Honing Technology for Aerospace Hydraulic Pumps
Case Study

Smart Honing Technology for Aerospace Hydraulic Pumps

Shop's customers note new technology makes a 60 millionths tolerance look generous "We don't believe it!" – that's how experienced machinists reacted to their first encounter with a new honing system that produced nine bores per part with only 0.000020" (0.5 µm) variation, all day long, with essentially no operator attention. That's 2.21 Cpk process capability.

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From Hupmobile to high-tech bore solutions: Sunnen innovation turns 100
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From Hupmobile to high-tech bore solutions: Sunnen innovation turns 100

Founder Joe Sunnen’s quest to sell his honing inventions started 100 years ago with cross country sales calls made from the back of his 1916 Hupmobile. Today, Sunnen technology is used worldwide to make performance engine parts, energy exploration equipment, aerospace components, gears, fuel injectors, fluid-power components and more.

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Sunnen's HTE-1600W Tube Hone is the company's first all-electric, cost-effective small diameter hone designed specifically for small diameter/long bore length parts.
Blog

Revolutionize Your Firearm Manufacturing with Sunnen's HTE-1600W at SHOT Show 2025

Attention firearm manufacturers and enthusiasts! Don't miss the opportunity to witness cutting-edge honing technology at the NSSF SHOT Show 2025.

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Sunnen Receives 3rd President’s “E” Award for Exports
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Sunnen Receives 3rd President’s “E” Award for Exports

ST LOUIS, May 17, 2024 – Sunnen Products Company was awarded the President’s “E Star” Award for Exports by the U.S. Department of Commerce, at Tuesday’s 63rd annual ceremony in Washington, DC.

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A New Face for Sunnen in 2024
Blog

A New Face for Sunnen in 2024

As we celebrate an unprecedented milestone for our organization, we ask ourselves: "What does 100 years mean to Sunnen?"

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See What We're Working On

Visit us at one of our upcoming trade shows for an in-depth look at Sunnen’s complete line of machines, tooling and abrasives.

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