JimaFor-Your Trusted Global Specialist For Rolled Ring Forgings.

JimaFor-Your trusted global specialist for rolled ring forgings.

Subheading:High Strength | Dimensional Precision | Customised Solutions | Global Delivery

Core Value Proposition: High quality, reliable and cost effective rolled ring forgings solutions for the global heavy industry.

1. Product Overview & Core Benefits:

What are Rolled Ring Forgings?

Short Definition: A rolled ring forgings is a ring-shaped metal part manufactured by the ring rolling process. It starts with a perforated billet, which is rolled radially and axially in a ring mill to enlarge its diameter and shape its cross-section profile to the desired size and properties.
Process advantages (compared to other processes such as casting or welding).
Excellent mechanical properties: continuous grain flow, no welds, high strength, good toughness.
High material utilisation: near-net forming reduces waste.
High dimensional accuracy: complex cross-sectional profiles can be produced.
Suitable for large ring parts: It is a cost-effective method for manufacturing large, seamless ring parts.

2,Forging Capability

Open Die Free Forging Capabilities:

Maximum part weight: 230-250 tons; Maximum opening diameter: 5,500mm; Maximum length: 24m. The length of nuclear energy forgings can reach more than 20m, and the length of large marine crankshafts exceeds 20m.

Quality Certifications & Compliance

ISO 9001:2015,ISO 14001

Ring Rolling Capabilities:

The ring rolling machines ranging from 0.6m to 10m. and can produce ring components for aerospace engines and gas turbines, covering a processing size range from 200mm to 10,000mm.

Application Cases:

·In China, we have achieved the production of 10 - meter - class rings, which are mainly used for wind turbine tower flanges.
·In 2023, we successfully rolled 11.8 - meter - diameter oversized ring parts for applications in the wind power, aerospace, and other fields.
China's ring rolling industry has developed a pattern of full - size coverage and multi - discipline applications. The largest rolling diameter reaches 13 meters, and its technical level and production capacity rank among the world's leading ones.

Closed Die Forging Development:

We can meet the production needs of forgings in different sizes, including small and medium - sized precision forgings and large precision forgings.
Moreover, we support the high - precision production of complex parts, such as aerospace high - precision components (aero - engine blades, turbine disks).
 

3,Application

Forging processes are extensively applied across diverse fields including aerospace, automotive, energy , construction, machinery manufacturing, shipbuilding, medical equipment, and robotics.

Wind power: tower flanges, bearing rings, gearbox components.

Oil and gas: flanges, valve bodies, pipe manifolds, wellhead equipment, pressure vessels.

Construction Machinery: track sprocket, slewing ring, bearing ring.

Aerospace: engine parts, landing gear rings.

Electric power: turbine rings, generator end rings.

Ship: propulsion system components, large bearing rings.

General industry: bearing housings for heavy equipment, gear blanks, large flanges.

4,Supported Materials

5,Customer Testimonials / Case Studies:

Aluminun forged rings is commonly used in aerospace,heavy machinery manufacturing,mili- tary,automotive,shipbuilding and other fields.

Challenges:

1.High cost:Aluminum plates are cut by CNC processing into rings,causing high raw materi- al fees.

2.Waste of resources:after cutting the aluminum plate,the remaining raw materials can not be effectively used again,resulting in waste of resources.

3.High transportation cost:using air shipment to catch deliver time for urgent orders.

Solution:

1.Transmission of Process:We recommend forging process,which is already maturely de- veloped in China,combined with CNC machining to form a professional production line,to accurately complete the dimensions required by the customer.Tolerance can be narrowed within 2mm.

2.Full use of raw materials:Aluminum plate is melted and then forged to raise the techni- cal performance and ensure the efficient use of materials,so as to save the cost.

3.Other services:By optimizing shipping costs and helping customers plan their orders in advance,we consider customers'interests in all aspects to save time,reduce costs while improve quality at the same time.

6,Product Showcase: