500mm - 1100mm Diameter 42CrMo Open Die Forging For Gear Couplings, Crane Wheels
42CrMo Open die forging 500-1100mm Diameter Crane Wheels. Our 42CrMo alloy steel crane wheels, forged using the open die process, are designed for heavy-duty applications in port handling, lifting systems, and industrial cranes. With diameters ranging from 500mm to 1100mm, these wheels offer outstanding load-bearing capacity, wear resistance, and impact strength, making them ideal for continuous operation in demanding environments.
Forged from high-quality 42CrMo, the wheels undergo quenching and tempering to achieve optimal mechanical performance and dimensional stability.
Key Features:
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Material: 42CrMo alloy steel
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Diameter Range: 500mm – 1100mm
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Forging Method: Open die forging + rough machining
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Heat Treatment: Quenched and tempered for high strength and toughness
Applications:
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Port gantry cranes (STS, RTG, RMG)
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Overhead cranes and hoisting systems
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Rail-based transport and transfer systems
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OEM replacements for brands such as ZPMC, Konecranes, etc.
Advantages:
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Uniform grain structure and high load resistance
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Long service life with low maintenance
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Custom bore size, keyway, and hub configurations available
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Ultrasonic tested, dimensionally verified, and fully traceable
Our laboratory testing equipment includes:
Spectral Component Analyzer – for chemical composition analysis
Hydraulic Universal Testing Machine – for tensile and yield strength testing
Impact Strength Testing Machine with Cryogenic Tank – for room temperature and low-temperature impact testing
Brinell & Rockwell Hardness Testers – to assess surface and core hardness
Ultrasonic Flaw Detector – for internal defect detection (UT)
Metallurgical Microscope – for grain structure and heat treatment evaluation
Program-Controlled Box Furnace – for heat treatment simulations and metallurgical testing
| Item | Details |
|---|---|
| Product Name | 42CrMo Open die forging 500-1100mm Diameter Crane Wheels |
| Material Grades | - Carbon and Alloy Steels: 42CrMo, 35#,45#,18CrNiMo7-6, 20CrNi2Mo, 4340, 35CrMo, 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 | Precision-forged components for: - Gearbox main shafts - Thrust flanges and coupling hubs - Marine transmission and propulsion shafts - Rudder stocks and steering gear drives - Suitable for both marine and industrial mechanical systems |
| 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 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

