Payment Terms | T/T |
Supply Ability | 56000 Tons per year |
Delivery Time | 30days |
Packaging Details | Pallet |
Material | 42CrMo and more |
Other Name | Heavy Steel Forging For Gantry Container Crane Wheels |
Ut Standard | Optional |
Hardness | According to the drawing |
Colour | Metal |
Tolerance | High |
Package | Iron stand/ wooden case |
Surface Finish | Smooth |
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 |
Material | 42CrMo and more | Other Name | Heavy Steel Forging For Gantry Container Crane Wheels |
Ut Standard | Optional | Hardness | According to the drawing |
Colour | Metal | Tolerance | High |
Package | Iron stand/ wooden case | Surface Finish | Smooth |
Brand Name | Tiangong | Certification | ISO9001, ISO14001,ISO45001 |
Place of Origin | Changzhou, China | ||
High Light | Ultrasonic tested forged steel parts ,Heavy forged steel parts ,Smooth surface casting forging machining |
This 42CrMo Ultrasonic-tested Heavy Steel Forging For Gantry Container Crane Wheels is specifically engineered for use in overhead crane wheels, gantry crane trolleys, and rail-driven lifting systems, where high impact resistance, load-bearing capacity, and dimensional integrity are crucial.
Forged from high-strength 42CrMo alloy steel, the component undergoes open die forging, Q+T heat treatment, and ultrasonic testing (UT) to ensure a dense internal structure and eliminate subsurface defects. Its excellent toughness and wear resistance make it ideal for wheel rims, hubs, and rail-contacting surfaces subjected to cyclic stress and abrasive environments.
Weight Range: 100 kg – 7 tons (customized to accommodate both medium-size drive shafts and large-section marine components)
Grain Structure: Refined through forging ratio ≥3.0 and controlled heat treatment
Tensile Strength & Toughness: Tuned to meet ship classification society requirements
Dimensional Tolerance: Custom tolerances per project needs
This product is optimized for:
Crane traveling wheels and drive wheels in metallurgical plants
Trolley wheels in container gantry cranes at ports and terminals
Rail wheel components for heavy lifting assemblies in mining or hydropower sectors
Forged hubs for steel mill cranes operating under high temperature and shock environments
42CrMo alloy steel offers an ideal balance of high tensile strength, ductility, and impact resistance, enabling safe operation under sudden loading and high-frequency braking in crane systems.
Each forging undergoes ultrasonic inspection, ensuring defect-free structure with no internal cracks, shrinkage cavities, or inclusions—critical for rotating components like crane wheels.
Through quenching and tempering (Q+T) treatment, the forging achieves , significantly reducing wear at the wheel-rail interface and extending service life in abrasive environments.
The controlled forging ratio (≥3.0) ensures grain alignment along stress paths, improving fatigue resistance and reducing the risk of fracture or deformation under heavy cyclic loads.
Material composition and thermal refinement allow high-precision CNC machining, enabling tight tolerance control for wheel hubs, bores, and flanges to match complex crane drive designs.
Suitable for extreme operating environments, such as steel mills, port gantry cranes, and mining hoists, where equipment faces high thermal cycles, shocks, and corrosive exposure.
Available in various sizes, machining states (rough/finish), and bore/keyway configurations, the forging can be tailored to specific crane models or OEM requirements.
Item | Details |
---|---|
Product Name | 42CrMo Ultrasonic-tested Heavy Steel Forging For Gantry Container Crane Wheels |
Material Grades | - Carbon and Alloy Steels: 42CrMo, 18CrNiMo7-6, 20CrNi2Mo, 4340, 35CrMo, 1.7225, 20CrMnTi, 20CrMnMo |
Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T - Supports large-section open die forging |
Manufacturing Process | Forging → Heat Treatment → Rough Machining → Dimensional & NDT Inspection |
Forging Ratio | ≥ 3.0 — Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation |
Applications | overhead crane wheels, gantry crane trolleys, and rail-driven lifting systems |
Process Compliance | Comply with port machinery crane use standards |
Delivery Conditions | - N+T (Normalized + Tempered): For pre-machined rough parts |
Testing & Inspection | - Chemical Analysis: Optical Emission Spectrometry - Mechanical Tests: Tensile , Impact , Hardness - NDT: UT , MT - Dimensional Control: Bore dial indicators, precision micrometers - Metallography: Grain size |
Value-Added Services | - Third-party witnessing available - Complete production chain from forging to marine-certified packaging - Support for global maritime logistics and export documentation |
Process flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
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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