ABOUT US

An Original balls producer since 1997

Established in 1997, HDBALLS is a professional steel ball manufacturer in China with over 30 years of production experience. HDBALLS has consistently been one of China’s leading manufacturers, sellers, and distributors of carbon steel balls, stainless steel balls, bearing steel balls, and hunting pellets.

Located in Shandong Province, China, HDBALLS enjoys convenient transportation and abundant port resources, adjacent to a major highway intersection. We have a modern 6,000-square-meter factory equipped with over 200 efficient production lines, producing over 5,000 tons of steel balls annually. More than 80% of our products are exported to over 50 countries and regions. All products are manufactured in China, offering highly competitive prices and superior quality, making us a globally renowned brand.

Our main products include carbon steel balls, stainless steel balls, chrome steel balls, hunting balls, and grinding balls, with diameters ranging from 0.5 mm to 150 mm in metric, imperial, standard, oversized, and small sizes. They are suitable for hardware, bearings, wheels, bicycles, toys, chemicals, military, and other industrial applications. Our customized services provide customers with the most cost-effective products to meet market demands. We are currently a leading manufacturer of semi-precision balls in grades 100 to 2000 in China and a trusted long-term supplier to some of the world’s leading companies.

We conduct strict quality control at every stage of production. Our business philosophy of “professional quality, competitive prices, and honest service” will prove us to be your best choice! Our goal is to become a well-known brand and comprehensive service provider in the global steel ball industry, providing the world with high-quality, qualified steel balls made in China.

How Produce Steel Balls

Processes

Starting from the stick testing of the steel wire from all crucial factors, steel balls are produced in professionally designed making machines Header, Flasher, Grinder electric furnace and Lapper. Heat treatment is one of the most important processes that give desired rigidity & hardness by carburized and hardened to the steel balls. Heat treatment makes the steel balls rigid and abrasion resistant.

All steel balls are made by 6 steps: Heading, soft grinding, heat treatment, flashing, flashing, hard grinding, inspection and packing.

Raw Material,wire drawing:

the wire rod is drawn to the required size,in closer tolerances so that it can be used in cold forging.

Cold forgig:

Calculated length of wire is sheared and cold forged in a close die to give it the spherical shape.

Flashing:

The rolling between plates with concentric grooves in order to eliminate the heading witness marks and to increase the precision of the ball, In this operation the spheres are ground between two concentric pressure plates to correct the sherical shape and remove the seam formed in the cold forging.

Heat treating:

Carbon steel balls are next carburized and hardened. Heat treatment imparts the desired hardness and case depth

Descaling:

This step removes the residues and by-products for the preceding process.

Hard Grinding:

Here the hardened balls are ground to improve suface finish and geometrical parameters. Several careful grinding processes with ceramic wheels lead to a higher size precision preparing the balls for the next final lapping operation.

Finishing:

Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, increasing wear resistance and product longevit

Inspecting:

All products pass through at least two 100% inspection stages, using proprietary,automated inspection processes.