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Seamless Rolled Rings

Seamless rolled rings are forgings formed from a single "donut"-shaped block of metal by the application of horizontal and vertical pressure. Seamless ring-rolling is a unique type of metal forging that produces seamless metal rings with great tensile strength and structural integrity. Seamless rings may be forged into a wide range of dimensions, from small bearing housings to wind turbine slewing rings.

For half a century, Falcon Metals Group has been an important suppler of seamless rolled rings to numerous manufacturers worldwide. Falcon's well trained and experienced staff is ready to quote you on any of your metal needs. Falcon also has an extensive library of technical information available to you upon request. Falcon is well equipped to handle all your metallic needs.

Our company offers the supplies that our customers count on for their own quality products. We only use the highest quality products and manufacturing processes, such as the forging method we use to create seamless rolled rings. Our customers come from all over the world, because we have a reputation for creating lifelong relationships with our customers. Contact us today for more info!

All Metals & Forge Group is an experienced manufacturer of seamless rolled rings, in addition to many other quality products & services. Expediting & logistics services help All Metals & Forge Group's clients meet difficult deadlines & respond to emergency material needs for situations from AOG, plant shutdowns, rush orders, CIL or other urgent repair situations. AM & FG is the one to trust! We take pride in our ability to anticipate your needs and offer the best secondary operations.

Our durable seamless rolled rings are ideal for a variety of applications. We focus on integrating the best materials to ensure that these rolled rings are strong and capable of handling tough tolerances. Our teams produce economical solutions. We are confident we can help you with any of your questions and we have a reputation of providing honest answers. Give us a call for top of the line seamless rolled rings!

We are capable of manufacturing a wide variety of forged products, including ingots, metal sheets, seamless rolled rings, metal tubes, and much more! If you can think of it, we can build it! We work hard to create customized products that provide the ultimate solution to our clients. Look to us to provide you with the support you need every step of the way!

Anderson Shumaker is the seamless rolled rings specialist, with the equipment and craftsmen to produce the highest quality results. Anderson Shumaker also offers secondary processing, including heat treating, rough machining, saw cutting, hole boring, destructive and nondestructive testing. Anderson Shumaker's solutions will stand up in service and they stand behind every product.

Established in 1978, Ferralloy, Inc. has established and sustained a successful business by developing expertise in supplying its customer base high quality seamless rolled rings, delivered on time at competitive prices. Ferralloy's primary focus is in providing the metalworking industry with castings, fabrications, forgings, machining and related products and services.

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Seamless Rolled Rings

The outside dimensions of seamless rolled rings can range from a few inches to 30 feet, height can reach from less than an inch to higher than 9 feet, and weight can be as much as 350,000 pounds. The shape of seamless rolled rings can be configured to be flatter, like a washer, or to have high walls like a hollow cylinder. Unlike other types of ring forming, this forging process creates a seamless ring with great integral strength, capable of resisting high degrees of internal or external pressure. This is why wheel hubs, bearing housings, pressure vessels, gears, jet engine bearings, engine turbines and wind turbines - all applications which apply significant force - are usually made from seamless forged rings. Seamless rolled rings are also utilized in nuclear reactors, off-road equipment, couplings, rotor spacers, sealed discs and cases, flanges, valve bodies and many other high stress applications.

A seamless rolled ring begins as a solid, circular block of metal that is heated to forging temperatures and then punched through the center to form a "donut" shape. This preform is then placed on a rolling rig with a roller touching the inside of the donut and a roller touching the outside of the donut. The two rollers begin to rotate in opposite directions, turning the ring, and at the same time the rollers slowly squeeze inwards, thinning the ring wall and causing the diameter of the ring to increase. Some ring-rolling machines also have a roller that presses down on top of the ring as it turns, governing the height of the ring wall. The process continues until the ring has been thinned, flattened or otherwise shaped to its desired dimensions, at which point it may receive secondary processing such as size fine-tuning or heat treatment. Rings can be shaped at high forging temperatures for faster forging or, for rings that require the highest pressure resistance, such as aluminum car wheels, the rolling can be done at lower temperatures over a longer period. Lower forging temperatures and longer forging times result in greater tensile strength. The ring-rolling process can be modified in any number of ways to produce a wide range of precise contours both on the inner dimension and outer dimension. Seamless rolled rings are unequaled in tangential strength, ductility, and adaptability.


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