Large Diameter Cast Gear Wheel for Steel Plant Applications Industrial Use Power Transmission Systems Cement Mill Drives Heavy Equipment

• Customization: Available
• Condition: New
• Certification: CE, RoHS, GS, ISO9001
• Model NO.: 0105004
• Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS
• Customized: Customized
• Material: Metal
• Application: Metal Recycling Machine, Metal Cutting Machine, Metal Straightening Machinery, Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Engraving Machinery, Metal Drawing Machinery, Metal Coating Machinery, Metal Casting Machinery
• Processing Technic: CNC Machining Center,CNC Lathe,Milling,Drilling
• Test: Ut PT,Mt
• Machining Parameters: as Drawing
• Process: Forging, Rough Machining, Qt, Finish Machining
• Tolerance: 0.01mm
• Surface Treatment: Painting,Plating,Polishing,Black Oxide,Transparent
• Teeth Profile: Spur, Helical, Herringbone, Crown, Spiral
• Delivery Condition: Hot Forged +Rough Machined + Turned
• Transport Package: Seaworthy Wooden Cases, Pallet, Customized Package
• Specification: OD500mm--OD5000mm, face up to 500mm
• Origin: China
• Production Capacity: 10000 PCS/Month
• Package Size: 100.00cm * 100.00cm * 50.00cm
• Package Gross Weight: 50.000kg

Product Description

Forged Gear Ring / Gear Ring Blank / Ring Gear Forging

A forged gear ring is a precision-engineered ring-shaped component with external or internal gear teeth, manufactured through the forging process to ensure superior strength, toughness, and durability. These gear rings are widely used in heavy-duty applications such as wind turbines, mining machinery, marine gearboxes, cement plants, and industrial gear reducers.

Compared to cast or machined gear rings, forged gear rings offer improved mechanical properties, uniform grain structure, and better resistance to impact and fatigue.

Cast Gear                                         

Cast gears are produced by pouring molten metal into a mold to form the desired gear shape. They are widely used in applications where high strength, large sizes, and moderate precision are required. Compared to forged gears, cast gears are more economical for large and complex shapes, especially in heavy industrial machinery, mining equipment, cement kilns, and power transmission systems.

Key Features & Benefits

Applications

Manufacturing Process

Forged Gear Ring:

Material Options: 42CrMo4, 17CrNiMo6, 34CrNiMo6, AISI 4140, 20CrMnTi, ASTM A182 F22, etc.
Heat Treatment: Normalizing, Quenching & Tempering, Carburizing, Nitriding as per application requirements
Tooth Types: Spur, helical, bevel (customizable)
Size Range: OD up to 4000 mm (custom sizes available)
Surface Finish: Machined, rough machined, or fully finished with gear teeth

Cast Gears:

Cost-Effective for Large Sizes
Ideal for producing large-diameter gears with lower tooling and manufacturing costs compared to forging or machining.
Complex Shape Capability
Suitable for intricate designs and integrated structures that are difficult to achieve with forging.
Wide Material Selection
Can be produced from a broad range of cast steels and cast irons, such as ZG310-570, ASTM A216 WCB, and ductile iron.
Good Load Capacity
Capable of handling high static and moderate dynamic loads in heavy-duty industrial applications.
Heat Treatment Enhanced
Mechanical properties such as strength and wear resistance can be improved through normalizing, quenching, and tempering.
Customizable Tooth Profiles
Supports various gear types including spur, helical, bevel, and double helical gears.
Scalable Production
Well-suited for single-piece, low-volume, or batch production of large gears.

Forged Gear Ring:

Wind Power Industry: Forged gears are used in main gearboxes, yaw and pitch mechanisms, where reliable and precise motion control is crucial for turbine efficiency and safety.
Mining and Construction: Crushers, conveyor drives, and heavy machinery rely on forged gears for their toughness and resistance to impact and wear in demanding environments.
Marine Engineering: Forged gears serve in propulsion systems, steering gears, and winches, requiring high corrosion resistance and strength to operate reliably in marine conditions.
Cement and Steel Plants: Rotary kiln drives, ball mill gears, rolling mill drives, and other heavy equipment utilize forged gears to maintain continuous operation under heavy loads and high temperatures.
Power Generation: Forged gears are applied in turbines, industrial gearboxes, and generators where precision and durability are critical for efficient power transmission.
Heavy Equipment: Excavators, cranes, slewing drives, and large-scale industrial machinery depend on forged gears for smooth, reliable motion and load handling.

Cast Gears:

Cement Industry – Rotary kiln gears, ball mill gears, grinding mill drives
Mining Equipment – Crusher gears, bucket wheel gears, hoist gears
Steel Plants – Furnace drives, ladle turrets, rolling mill gears
Power Plants – Gear couplings, transmission gears, drive systems
Sugar Mills – Large gear wheels for crushing and processing systems
Marine Machinery – Winch gears, rudder gears, anchor handling systems
Heavy Machinery – Slewing gears, rotary platform drives, construction equipment

Forged Gear Ring:

Material Selection – Choose alloy steel like 42CrMo4 or 34CrNiMo6.
Forging – Heat and forge the billet into a ring shape.
Rough Machining – Pre-machine the ring to near-final dimensions.
Heat Treatment – Apply quenching, tempering, or carburizing to enhance strength.
Gear Cutting – Cut precise gear teeth using hobbing or shaping.
Final Machining – Finish machining to meet tolerances.
Inspection & Packaging – Perform quality checks and pack for delivery.

Cast Gears:

Pattern Making
Create a gear-shaped pattern based on 3D models or technical drawings, typically made of wood, resin, or metal.
Mold Preparation
Prepare sand molds or use lost foam/resin sand casting techniques, depending on gear size and complexity.
Metal Melting
Melt steel or iron in a furnace (e.g. electric arc furnace or induction furnace) according to the required alloy grade.
Pouring
Pour the molten metal into the mold cavity under controlled conditions to form the gear shape.
Cooling & Shakeout
Allow the casting to cool and solidify, then remove the mold material and separate the rough casting.
Heat Treatment
Apply normalizing, annealing, or quenching & tempering to enhance mechanical properties.
Rough Machining
Remove surface scale and excess material to shape the gear for further processing.
Gear Cutting
Cut gear teeth using hobbing, shaping, or milling machines according to the required tooth profile.
Final Machining & Finishing
Finish key dimensions, bore holes, and tooth surfaces as per customer specifications.
Inspection & Testing
Conduct dimensional checks, NDT (UT/MT), and hardness or material composition testing before delivery.

Product Name	Forged Gear Ring / Gear Ring Blank / Ring Gear Forging
Material Grades	42CrMo4, 34CrNiMo6, AISI 4140, 17CrNiMo6, 20CrMnTi, ASTM A182 F22, etc.
Outer Diameter	300 mm – 4000 mm (customizable)
Inner Diameter	≥ 200 mm (depending on application)
Height/Thickness	50 mm – 800 mm
Tooth Profile	Spur, Helical, Bevel (as per drawing)
Surface Finish	Rough Machined / Semi-Finished / Fully Machined with Gear Teeth
Heat Treatment	Normalizing, Quenching & Tempering, Carburizing, Nitriding
Machining Tolerance	As per DIN/ISO standard or customer requirements
Inspection	UT, MPI, Hardness Test, Dimension Check, Gear Profile Inspection
Standard	GB/T, ASTM, EN, ISO, or per customer drawing
Applications	Wind Turbines, Mining Equipment, Marine Gearboxes, Cement Mills, Industrial Drives
Packaging	Anti-rust coated, packed in fumigation-free wooden cases or steel pallets

Product Name	Cast Gear / Casting Gear Wheel / Large Cast Gear
Casting Process	Sand Casting / Resin Sand Casting / Lost Foam Casting
Material Grades	ASTM A216 WCB, ZG310-570, ZG45, GS-45, ASTM A148, DIN GGG40, etc.
Outer Diameter	500 mm – 5000 mm (customizable)
Module	M5 – M50 (as per drawing)
Tooth Profile	Spur, Helical, Bevel, Double Helical
Surface Finish	As Cast / Machined / Gear Cut
Heat Treatment	Normalizing, Annealing, Quenching & Tempering
Machining Tolerance	As per DIN/ISO standard or customer requirements
Inspection	Chemical Composition, UT, MT, Dimension, Hardness Test
Applications	Cement Plants, Ball Mills, Mining Equipment, Crushers, Rotary Kilns
Packaging	Anti-rust protected, packed in wooden crates or steel frame

Why Choose Us?

Xiamen Bluesea Piping Systems Co., Ltd (BPS), established in 2009, is a professional forging manufacturer with over 15 years of experience. We specialize in producing a wide range of forged components including forged rings, shafts, cylinders, discs, and both standard and non-standard flanges, using carbon steel, stainless steel, duplex steel, and alloy steel. Our factory covers 8000 m² and is equipped with complete production lines including free forging, ring rolling, machining, heat treatment, and painting, with an annual capacity of 8000 tons. We have cooperated with Fortune Global 500 companies and earned a solid reputation in international markets such as South America, Europe, and Asia. Certified by ISO9000, PED, and TUV AD2000-W0, we guarantee stable quality, on-time delivery, and professional service with full documentation and inspection support including third-party inspection.

Packaging 

Delivery Options:

Packed in fumigation-free wooden cases or steel pallets to ensure safety during long-distance transportation.
Each product is protected with plastic film, anti-rust oil, or VCI paper as needed.
All packages are securely strapped and labeled with clear product information.

Delivery Time: Normally 25–45 days depending on quantity and machining requirements
Shipping Methods: By sea, by air, or by express (DHL/UPS/FedEx) for urgent small parts
Port of Loading: Tianjin Port, China (or as per customer instruction)

FAQ

Q: Are your MIC forged rings comparable to Western brands?
A: Yes! We use CNC machines and comply with international standards (e.g., API 6A for oil & gas).

Q: Can you provide material certificates?
A: Yes, Mill Test Reports (MTR) with traceable heat numbers.

Q: How to ensure quality before shipment?
A: Third-party inspections (SGS/BV)