Our products:
Whether you need a flange for large water pipes, as an attachment for ships' engines, in steam turbines or in steel towers for wind turbine generator systems - our flanges provide a safe and stable link in a variety of fields of application.
The diameters of flanges that we manufacture lie between 500mm to 7, 000 mm. We are happy to produce non-standard flanges and tube sheets in line with your instructions and according to DIN, ANSI, JIS in the world.
We manufacture:
Flanges for wind turbine generator systems (tower flanges)
Flanges for generators
Flanges for excavator and crane
Non-standard flanges according to customer's drawings
Tube sheets in line with customer drawings
Flanges for slewing ring bearing
Flanges according to DIN ANSI JIS
The fields of application for our products:
Gears for wind turbine and wind tower foundation
Generator systems
Water power plant
Container construction
The chemical industry
Mechanical engineering
Shipbuilding
Please send drawing or dimension to us if you have any needs, we will quote with a sound price.


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.