Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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Reliable Forged Crane Wheels – ZPMC’s Leading Supplier at Your Service. ZPMC Port Crane Wheel Supplier – 42CrM Alloy Forged Wheel. We supply high-strength 42CrMo alloy forged wheels specifically designed for ZPMC port cranes and other heavy-duty lifting equipment. Manufactured through precision open die forging and strict heat treatment, our crane wheels are engineered to deliver exceptional load-bearing capacity, wear resistance, and impact strength under harsh working conditions.
These forged wheels are widely used in gantry cranes, ship-to-shore (STS) cranes, rail-mounted container cranes (RMGC), and rubber-tyred gantry cranes (RTGC), offering long service life and reduced maintenance for continuous port operations.
Key Features:
Material: 42CrMo
Forging Method: Open die forging
Heat Treatment: Normalizing and tempering for optimal hardness and toughness
Applications:
ZPMC STS & RTG cranes
Rail-mounted and rubber-tyred gantry cranes
Container handling systems
Heavy-duty port transport systems
Advantages:
Excellent wear and fatigue resistance
Precise dimensional control and concentricity
Compatible with OEM crane standards (e.g. ZPMC)
Custom machining and surface treatment available
Long service life under continuous operation
We design and manufacture forged parts for all industrial areas by applying our experience and unique professionalism, taking into account the specific technical and performance requirements of each market. This has made us a trusted forging partner across a wide range of industries, collaborating with world-leading companies.
A. Wind Power Generation
High-strength forged shafts and gears for wind turbines, ensuring fatigue resistance and long service life in harsh environments.
B. Port Heavy Machinery
Heavy-duty forgings for cranes, wheels, and lifting components, built to handle extreme loads and continuous operation.
C. Mining
Durable forged parts for drilling and crushing equipment, offering impact resistance and extended wear life in tough conditions.
D. Ship Building
Precision marine forgings such as propeller shafts and rudder parts, certified for strength, corrosion resistance, and reliability.
E. Chemical Industry
Forged flanges and vessel parts engineered for high-pressure, high-temperature, and corrosive chemical environments.
F. Oil Industry
Robust forgings for drilling and wellhead systems, designed to withstand high stress, pressure, and harsh field conditions.
| Item | Details |
|---|---|
| Product Name | |
| Material Grades | - Carbon and Alloy Steels: 42CrMo, 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 |
Forging process flow quality control:
Raw material steel ingot into warehouse(test the chemical composition) → Cutting→ Heating(Furnace temperature test) → Heat treatment after forging(Furnace temperature test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal dimension, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.
Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.