Steel Ball Manufacturing Process

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How a Ball is Made

From raw material to final inspection how a precision ball is made. Learn how a precision steel ball is made. From heading, flashing, heat treating, grinding, lapping and final inspection.

From raw material to final inspection

How a precision ball is made

Raw Material

Raw material from reliable supplier.
These suppliers have undergone strict selection and review to ensure that their products comply with relevant quality standards and safety regulations.
Heading

Ball blanks are cold or hot headed from rolls of wire or bar stock depending on their size and the material. The heading machine cuts off a short cylinder of the material and a moving die with a concave spherical cup drives the cylinder into a matching cup in a fixed die. The result is a spherical shape which is the ball blank.
Flashing

The flashing operation removes the slight belt and small protrusions left on the surface faces by rolling them between the two hard alloy plates under high pressure.
Heat Treatment

The balls are hardened, by heating them to a high temperature (over 1500 degrees Fahrenheit) in an atmospherically controlled furnace and then quenching them into a liquid bath. They are then tempered to reduce their brittleness by heating them to a low temperature (around 325 Fahrenheit).
Grinding

The hardened balls are precision ground by rolling them between the faces of a fixed iron plate and a very hard fine-grit grinding wheel.
Lapping

The hardened ground balls are rolled between two cast iron plates. One plate is fixed while the other is rotated at a very low speed. The real secret of the extreme quality of precision balls happens here. This lapping process polishes the ball to the exact size required. This gives the ball a shiny finish.
Inspection

Tracking and testing with high-end instruments to ensure product quality. It mainly includes the detection of steel ball surface scratches, defects, rust, surface spots and so on.
Packing

Once they are approved by quality control, the balls are then packaged and shipped to the customer.

We provides a variety of secure and cost-efficient custom packaging solutions for our products to ensure the most essential protection and preservation of our products. It is our goal to provide you the packaging to accommodate your shipping and production needs… to make you more efficient and cost-effective.

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How a Ball is Made

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