Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30days |
| Packaging Details | Pallet |
| Heat Treatment | Normalizing and tempering |
| Transport Package | Pallet or Customizable |
| Machining | Hydraulic Hammers: 5T, 8T, 12T |
| Surface Finish | Smooth or Customizable |
| Advantages | High strength, excellent fatigue resistance, improved mechanical properties, cost-effective |
| Type | Open die forging |
| Material | 42CrMo |
| Apply | Industrial Gearbox Components |
| Brand Name | Tiangong |
| Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 56000 Tons per year |
| Delivery Time | 30days | Packaging Details | Pallet |
| Heat Treatment | Normalizing and tempering | Transport Package | Pallet or Customizable |
| Machining | Hydraulic Hammers: 5T, 8T, 12T | Surface Finish | Smooth or Customizable |
| Advantages | High strength, excellent fatigue resistance, improved mechanical properties, cost-effective | Type | Open die forging |
| Material | 42CrMo | Apply | Industrial Gearbox Components |
| Brand Name | Tiangong | Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China | ||
| High Light | 42crmo open die forging process ，industrial open die forging process ，industrial open die forging products | ||
Heavy Duty 42CrMo Open Die Forgings for Industrial Gearbox Components. Our Heavy Duty 42CrMo Open Die Forgings are engineered for the demanding load and torque conditions of large industrial gearbox systems. Manufactured using open die forging techniques, these components offer excellent mechanical strength, dimensional stability, and fatigue resistance, making them ideal for use in high-power transmission environments.
Forged from premium 42CrMo alloy steel, the parts undergo precise heat treatment to ensure a strong and ductile core with high surface hardness when needed. The forging process enhances grain flow and eliminates internal defects, delivering superior structural integrity for continuous operation under harsh industrial conditions.
These forged components are well-suited for critical gearbox applications in sectors such as mining, metallurgy, cement, power generation, and heavy machinery.
High Strength & Toughness: Forged from 42CrMo alloy steel, offering excellent tensile strength and impact resistance under high-load conditions.
Optimized Grain Structure: Open die forging process ensures refined grain flow and internal soundness for prolonged service life.
Dimensional Stability: Precision heat treatment and controlled machining ensure consistent geometry and performance in rotating and static load environments.
Customizable Profiles: Available in various forged shapes—discs, shafts—to meet gearbox layout and torque transmission needs.
Wear & Fatigue Resistance: Suitable for surface hardening processes to resist wear and cyclic fatigue in long-term heavy-duty operation.
Industrial Gearboxes: Core transmission components such as main shafts, coupling hubs, and pinion blanks.
Mining Equipment: Drive train components subjected to shock loads and abrasive environments.
Metallurgy & Cement Machinery: Gears and shafts for mills, rotary kilns, and conveying systems.
Heavy-Duty Cranes & Hoisting Equipment: Load-bearing forged elements requiring high torque transmission capacity.
Power Generation Equipment: Supporting high-speed, high-load mechanical systems in thermal or hydro power plants.
| Item | Details |
|---|---|
| Product Name | Heavy Duty 42CrMo Open Die Forgings for Industrial Gearbox Components |
| Material Grades | - 42CrMo alloy steel known for its high tensile strength, toughness, and hardenability under load-bearing industrial conditions |
| Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T - Capable of open die forging for medium to large gearbox parts with complex geometries |
| Manufacturing Process | Raw Material Inspection → Preheating → Open Die Forging → Heat Treatment → Rough Machining → NDT → Final Machining (if required) → Dimensional Inspection → Packaging → Delivery |
| Forging Ratio | ≥ 3.0 — Enhances internal soundness, directional grain flow, and mechanical stability under heavy torque and dynamic forces |
| Applications | - Drive shafts, gear blanks, and couplings in mining, metallurgy, cement, and marine gearboxes - Transmission parts in lifting equipment and power machinery - Ideal for high-load, shock-resistant, and long-duty cycle gear systems |
| Delivery Conditions | -Normalizing + Tempering to enhance toughness, stabilize structure, and ensure dimensional consistency under hydraulic pressure - Optional soft annealing for improved machinability based on downstream processing requirements |
| Testing & Inspection | - Chemical Composition Analysis (Spectrometry) - Mechanical Testing: Tensile Strength, Impact Toughness, Hardness - Non-Destructive Testing: Ultrasonic (UT), Magnetic Particle (MT) - Dimensional and geometric inspection using advanced measuring systems |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
27.5 million -28 million
Employee Number:
135~150
Ecer Certification：
Verified Supplier
About CHANGZHOU TIANGONG We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet ... About CHANGZHOU TIANGONG We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet ...
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