What is edge rounding?


In 2022 Lian, our Marketeer, explains our applications one by one. Last time she discussed the most frequently asked questions about grinding metal parts. Besides grinding, edge rounding of metal parts is becoming more and more the norm. In this blog Lian tells you all about it. First, what exactly is metal edge rounding? “By edge rounding metal workpieces we provide the sharp edges of these workpieces with a radius. Another word that is often used is edge breaking.”

Why edge rounding?

“Proper and accurate edge rounding is becoming increasingly important in the metal industry. This for several reasons:
- The product becomes more manual and safer to work with. Employees or end users no longer open their hands on sharp edges, so employees can work more smoothly.
- Sharp edges result in poor adhesion of paint or coating, which can flake off and cause corrosion.
- Current standards require a specific predefined radius, making edge rounding essential.”


How to round off?

“There are different ways to round off your metal sheet parts. Before special tools and machines were developed for this purpose, deburring and flap wheels were used. This made edge rounding a time-consuming and inaccurate process.

Today, specific hand tools are available on the market, including milling tools. These tools guarantee a faster and more consistent edge rounding than fully manual tools. However, the quality still depends on the person operating the tool. And the operation is labour-intensive and costly.

There are also several machines available, which apply a constant radius on metal parts in one pass. With maximum GrindingPOWER®, the right combination of power, abrasives and speed, such a machine provides the perfect edge rounding.

Q-Fin is specialized in developing, building and selling machines with maximum GrindingPOWER® that combine deburring, rounding and finishing. This way you not only get a hand-friendly product, but also a product that looks perfect. Discover our extensive product range!


Edge rounding is just one of the applications that our machines can help you with. In our next blog Lian will tell you all about finishing metal parts.