We mainly produce large forging, casting, and welding gears according to customer's drawings. Depending on working conditions and specific requests, we provide gear grinding, surface hardening, carburizing and quenching, nitriding, and other heat treatment processes.
Custom Production of Large Gear Rings and Pinion Gears Based on Client Drawings and Specifications.
| Material | Carbon steel, Alloy steel, 42CrMo, 35CrMo, 34CrNiMo6 |
| Weight | Up to 1500T |
| Machining | Forgings/castings/weldings, rough turning, UT flaw detection, quenching and tempering, finish turning, gear making (milling, hobbing, gear shaping), grinding, surface hardening (carburizing/nitriding), wire cutting |
| Type of Gear | Spur gear, double helical gear, helical gear, herringbone gear |
| Heat Treatment | Quenching and tempering |
| Main Equipment | 13m, 6m, 4m CNC gantry milling machines; T130, T160 floor type boring machines; VMC850; 5m CNC vertical lathe; 6m CNC horizontal boring machine, etc. |
| Module | Up to M150 |
| Precision | Grinding ISO Grade 5-7 & Hobbing ISO Grade 8-9 |
| Inspection | Raw material inspection, UT, physical property test, dimension inspection |
| Application | Ball mill, rotary kiln, and other industrial machinery |
Frequently Asked Questions
What materials are used for your large girth gears?
We use high-quality materials including Carbon steel, Alloy steel, 42CrMo, 35CrMo, and 34CrNiMo6 to ensure durability and strength for heavy-duty applications.
What types of gears can you manufacture?
We specialize in various gear types including Spur gears, Double Helical gears, Helical gears, and Herringbone gears, customized to your specific industrial needs.
What is your maximum production capacity for gears?
We can manufacture gears with a weight up to 1500T and modules up to M150, with an annual production capacity of approximately 20,000 units.
How do you ensure the precision and quality of the gears?
Our gears reach Grinding ISO Grade 5-7 and Hobbing ISO Grade 8-9. We conduct rigorous inspections including UT (Ultrasonic Testing), physical property tests, and dimensional inspections throughout the manufacturing process.
What kind of heat treatment processes do you offer?
We offer a range of heat treatments including quenching and tempering, surface hardening, carburizing, and nitriding to meet different working condition requirements.
What are the main industrial applications for these ring gears?
The large ring gears and girth gears are primarily used in ball mills, rotary kilns, and other heavy-duty machinery in mining, cement, and chemical industries.