Winner of Deming Prize 2010

 

 

 
NEI’s Wagner Ring Rolling Line is the first of it’s kind in India & has a Leading edge on World Market. Ring Rolling Line consist of : Automatic bar stacker, bar feeding device, Induction heating plant, Automatic multi-station ring blank hot working press with shear and automatic advances, Radial ring rolling mill, Calibrating (Sizing press) for manufacturing Seamless rings for Bearings, Automobiles and general Engineering Applications.
Distinctive feature of rolled rings is superior grain structure and are free from Surface defect.
 
Induction Bar Heater - 550 kW, 1KHz  
Induction Heating is used for fast, uniform heating (Surface to Core) with minimal Scaling. The 550 kW Solid State Induction Bar Heater is equipped with PLC for varying Temperature in small gradients. System is coupled with Raytek Infrared Pyrometer for continuous Temperature monitoring of heated bar for Forging.
   
Forging Press - Pda 630  
Wagner multi station, double column crank press has a capacity of 630 Tones. It is having closed die forging with hot shear facility along with automatic blank transfer mechanism. After upsetting, pre-punching and finish punching of the blank, it is rolled out in the same heat on Rolling Mill.

Radial Rolling Mill - KFRWt 630  
Radial Ring Rolling mill has 4 Rolling Mandrel for rolling Hot Blank in Single or Double Pass depending on Profile of Ring. A Multitude of profiles (Ring with Inner & Outer profile of various kind) can be rolled precisely. Sensitive and infinitely variable control of rolling pressure and centering arms guarantee truly circular rings with identical diameter.

Seamless rolled ring manufacturing offers an inherent product advantage : Desirable grain flow characteristic and grain refinement , resulting in improved mechanical properties and metallurgical soundness , for delivering increased strength in final product as required.

Calibrating Press - Pda 200  
Rolling is followed by Calibration operation of Hot rolled ring on Calibrating Press with a capacity of 200 Tones. The ring is "Calibrated" in a so called rounding phase, the result is a precise round ring in close tolerance.
 
 
Size Range Min. Max. .Capacity
Outside Diameter (mm) 130 350 Installed Capacity - 3000 Ton/ Year
Height of Ring (mm) 64 100 Available Capacity - 1600 Ton/ Year
Ring Weight (Kg) 3.5 15  

   
Advantages  
Superior quality . Improved material yield . Shorter production time . Reduced costs
Upsetting, forming and piercing of the blank under the press, rolling on ring rolling mill, and subsequent sizing are done in one heat.
A quality benefit of ring rolling is grain flow adapted to most kinds of stressing. Grain orientation is not only parallel with the surface but is also circumferential. This leads to decisive improvements : Life of rolled ring is considerably increased, their mechanical and physical properties are substantially improved, minimum machining allowances are possible, surfaces become smooth, irregularities being eliminated in the pass.
  • Ring Rolling Plant is Certified for both QS 9000 and ISO 14001

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NEI Ltd - Leading Rolled Rings Manufacturer & Exporter of Rolled Ring in India. Contact for best Exporter of Rolled Ring & Manufacturer of Rolled Rings from India.