Hot-rolled rings and bushing / rolled ring manufacturers company
Our workshops have three ring rolling mills, everyday these ring rolling mills manufacture seamless hot rolled rings and bushings hundreds of Tons to supporting our customers all over the world.The max outside diameter could reach 4,500 mm. radial width of 5,00 mm max.
In our Workshop, the new 7-000 Ton Press has been running for one and half years.
Some of what we could manufacture are belows:
Forged shell courses for pressure vessel constructionForged tube sections, run pipesThrust rings, steel tyresSupport rings for bearingsBooster segments for the propulsion systems of satellite launchersShroud rings, seal rings, guide rings, retaining rings and blade carriers for turbinesSkirt rings for vesselsBearing shellsGear drive rings and drive bushingsConnecting bushingsCoupling componentsBayonet rings


With advanced forging equipment, CNC machines and experience operation persons, we manufacture prodcuts:
Seamless Rolled Rings for slewing ring bearings, wearing rings, wind turbine slewing rings, wind turbine blade bearings.
Seamless Rolled Rings for large standard flanges,large custom flanges,wind tower flanges.
Large diamter flanges, wind tower flanges are manufacture by our workshop.
Ring Gears, Solid tyre and wheels, Seamless rolled neck rings.
Main material: A105, SA350LF2, A694, C22, S235, S275, S355J0
42CrMo4, C45, S48C
S355NL, S355J2G2, S355JR,Q345E

Forging Workshop | Production Line No.1: 1600mm Ring Roller Production Line No.2: 2500mm Ring Roller Production Line No.3: 5000mm Ring Roller |
Machining Workshop | CNC |
Heat Treating Workshop | Normalizing (N), Quenching and Tempering (Q+T) N+Q+T |
Forging Workshop:
Until 2013, three production line are running every day to support customers both in domestic market and international market.
7000 Ton Hydraulic Press and 3000 Ton Hydraulic Press, supporting us to offer the products with big weight.
Machining Workshop:
With right CNC machines to support three production line, our machines let us to offer precision machining service up to 5000mm.
Heat Treating Workshop:
With right way of heat treatment to seamless rolled forged ring, we offered products with good performance on technical properties, like hardness, no cracks, good impcat and etc.

With long years of experience in forging industry, Rongcheng support customers from Asia, European, USA, Mid East and etc, these customers are in the industry: capital equipment, petrolchemical, mining, energy , paper, metal working and etc.