This large gear casting product adopts advanced sand casting technology, using high-quality alloy cast steel (such as ZG42CrMo, ZG34GrNiMo, ZG8Cr26Ni4Mn3NRe heat-resistant cast steel, etc.) as the base material. It is manufactured through precision mold forming, heat treatment strengthening, and CNC gear profile machining. The product features ultra-large specifications (single piece weight up to 80 tons), high material toughness, excellent wear resistance, and high-temperature resistance. The surface hardness and core toughness are balanced to ensure long-term stable operation under heavy load and impact conditions. The product supports customized design, optimizing gear module, number of teeth, and heat treatment processes for different application scenarios to meet diverse industrial equipment needs.
Product Applications
Mainly used in key transmission parts of heavy industrial machinery equipment, typical scenarios include:
1. Mining Industry: Drive ring gears for mining ball mills and semi-autogenous mills, supporting heavy grinding equipment operation such as aluminum ash separation production lines over 100 tons.
2. Cement and Building Materials: Large gears for rotary kilns and roller press drives, enabling high-temperature calcination and efficient grinding of materials.
3. Metallurgy Field: Rotary drive devices for blast furnace material tanks and large rolling mill transmission systems, ensuring continuity in metal smelting and processing.
4. Others: Heavy-duty transmission components such as coal mills in thermal power plants and rotary mechanisms in port machinery.
Product Features
1. Ultra-high load capacity: Designed as an 80-ton single unit, capable of transmitting massive torque to meet heavy equipment power demands.
2. Excellent material performance: ZG42CrMo and ZG34CrNiMo alloy steels ensure high strength and toughness; ZG8Cr26Ni4Mn3NRe heat-resistant cast steel adapts to environments above 600°C, improving wear life by over 30%.
3. Precision gear profile machining: Gear surface accuracy reaches GB 10-12 grade, ensuring smooth meshing, low noise, and transmission efficiency up to 98%.
4. Heavy load impact resistance design: Optimized gear root structure and heat treatment depth, bending strength ≥1200MPa, fatigue life increased by 50%.
5. Full lifecycle service: Supports custom development, gear surface repair, and rapid spare parts response, reducing user operation and maintenance costs.
Product Functions
1. Core transmission function: Acts as the driving core of rotary equipment, efficiently transmitting motor torque to the main rotating body to perform material grinding, calcination, conveying, and other process actions.
2. System synchronization control: Ensures operational synchronization of multi-gear linkage equipment through precise gear profile matching, reducing system vibration.
3. Heavy load impact absorption: Unique gear root fillet design and high toughness alloy materials effectively buffer start-stop and overload instantaneous impacts, preventing tooth breakage risks.
4. Harsh condition adaptability: Heat-resistant and wear-resistant materials resist high-temperature dust environment erosion, ensuring long-term reliability under harsh conditions such as cement kilns and mining mills.
Product Technical Parameters
Parameter Name | Parameter Range/Typical Value | Description |
Material | Alloy cast steels such as ZG42CrMo, ZG34CrNiMo, ZG8Cr26Ni4Mn3NRe | Customized according to working conditions, optional heat-resistant/wear-resistant materials |
Single Piece Weight | 10-80 tons | Supports transmission needs of large equipment |
Gear Diameter | Φ2000mm to over Φ6000mm | Covers ultra-large rotary equipment |
Number of Teeth | 100-500 teeth | Designed according to transmission speed ratio |
Module | 20-80mm | Matches torque transmission requirements |
Hardness | Gear surface HRC 38-48, core HB 220-280 | Surface wear resistance + core toughness |
Accuracy Grade | GB 10-12 grade | Ensures smooth transmission |
Operating Temperature | -40°C to 650°C (heat-resistant materials up to 800°C) | Adapts to wide temperature range environments |
Application Industries | Mining, cement, metallurgy, power, ports, etc. | Heavy industrial sectors |
Note: Specific parameters can be adjusted and optimized according to user requirements, equipment working conditions, and design specifications. Technical drawing customization and development are supported.
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Large Gear Casting
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