Gold Member Since 2017
Audited Supplier
Laiwu Forging Co., Ltd.

Rolled Rings, Forged and Rolled Ring, High Quality Rolled Ring Forging manufacturer / supplier in China, offering Precision Large Diameter Forged Rolling Ring, Gear Ring, Forged Ring Open Die Forging ISO9001 Factory Outlet API Q1, Heavy Forging Forgings for Oil and Gas Extraction Industry API Q1 and so on.

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Precision Large Diameter Forged Rolling Ring, Gear Ring

FOB Price: US $100-10,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100-10,000/ Piece
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Port: Qingdao, China
Production Capacity: 100000 Tons Per Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: LD-29
  • Molding Style: Forging
  • Application: Machinery Parts
  • Heat Treatment: Normalizing
  • Forging Tolerance: +/-0.1mm
  • Certification: RoHS, ISO 9001:2000, ISO 9001:2008
  • Shape: Based on Customers′ Drawing Design
  • Application Industry: Machinery;Mining;Oil & Gas;Power Generation;etc.
  • Transport Package: by Crate Adapted to Seaway
  • Origin: Laiwu, China
  • Processing Object: Metal
  • Molding Technics: Pressure Casting
  • Material: Steel
  • Surface Treatment: Powder Coating
  • Standard: GB
  • Inspection Method: Ultrasonic, Magnetic Particle, Penetrant
  • Types: Forged Shaft; Forged Rings; Forged Flange; etc.
  • Trademark: LD
  • Specification: Accept customized
Product Description
Main Production Capacit
    Shaftφ200-2000mm;  length≤12000mm; weight≤50t
    Cylinderφ200-2000mm;  length≤12000mm; weight≤50t
    PlateThickness>30mm;   length200-8000mm; width≤3000mm
    RingOD≤3000mm; thickness≤2000mm
  Special typesφ2000*12000mm; 8000*3000*2500mm

Manufacturing Process
Precision Large Diameter Forged Rolling Ring, Gear Ring

About Us

LaiWu Forging Co., Ltd. is a professional free forgings manufacturer. With 40 years experience, it has been become the member of Confederation of Chinese Metal forging Industry, China AAA grade credit company and the national high & new technology enterprises.
Our factory focusing on forgings for oil & gas,Machinery,Military/ Defense,Mining,Power Generation,Nuclear, Gas Turbines,Railway & Mass Transit industries.
We have rich production experience and full technology on this industry. The products including gate valve, valve box, integral union riser, Fracturing head, tubing head, casting head, cross body, stabilizer, BOP...The products have pass API Q1, all production process follow the Q1's request. Our company has whole sets of QC equipments, which will ensure after many times QC, the products will be 100% good. Our products has exported to Southeast Asia, Middle East and USA, and win the customers' high reputation. Our company will try our best to develop to a very professional, high quality, and fast lead time forging manufacturer in China.
Main Products: Pipe Mould ,Wind turbine main shaft; crankshaft; forged tee ;roller; marine stern shaft; Cylinder; Flange etc. As following:

Precision Large Diameter Forged Rolling Ring, Gear Ring

 Main Equipments as following
Forging Equipments4500t &1600t Hydraulic forging equipments; 50t&15t Manipulators; 2t&1t&450kg air hammer; 5t electro hydraulic hammer etc.
Heat treatment Equipmentsφ2*12m pit furnace; φ8*3*3m table resistor furnace; 1.5*0.8*1.5m box resistor furnace; 8*3*3m gas furnace; 6*3*2m gas furnace; 7.5*4*2.5 gas furnace;16*2.5*2.5 gas furnace etc.
Machining EquipmentsTotal 40sets; including φ2*12m heavy sleeper; φ5m vertical lathe; floor type boring and milling machine; CNC miller ;φ1.6*16m heavy sleeper; single-arm planer; boring and milling machine etc.
Quality Test EquipmentsImpact testming machine;universal testing machine; spectrometer; impact machine; cryonstat; hardness tester ; projector; metallographic microscope ,king hardness tester etc.

Heat Treatment Equipments
Precision Large Diameter Forged Rolling Ring, Gear Ring

Machining Equipments
Precision Large Diameter Forged Rolling Ring, Gear Ring

Forging Equipments
Precision Large Diameter Forged Rolling Ring, Gear Ring

Quality Control

1.During the smelting process, strict control is required both for the prescribed elements( 21 CrMo10), and for some harmful elements and gas, like P, S , Sn, As, Sb, Bi, and H, O, N.
2.To guarantee that the pipe moulds have reached our flaw detection standards, and that the forged blanks own refined grains, we have employed strict  forging technique upon the ductile iron pipe moulds.
3. After roughing process (drilling inner holes), a quenching and tempering treatment is given by vertical pit furnace upon the pipe moulds for further refined grains and higher comprehensive mechanical propertied.
4. CNC equipment is adopted for finishing for high processing precision.
5.All of the propertied of our pipe moulds are superior than the GB/T 25715 centrifugal ductile iron pipe mould standards.

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Precision Large Diameter Forged Rolling Ring, Gear Ring

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