Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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Heavy-Duty Gantry Crane Wheel Free Forging for Port and Industrial Crane Applications.The Heavy-Duty Gantry Crane Wheel Free Forging is a precision-engineered forged component designed to support the high loads and continuous rolling conditions in port cranes, shipyard gantries, and heavy industrial lifting systems. It serves as a critical wheel unit that ensures smooth, reliable movement of crane bridges and trolleys under extreme working environments.
Manufactured from high-strength alloy steels such as 42CrMo4, these wheels feature exceptional wear resistance, impact toughness, and load-bearing capacity. The free forging process ensures refined internal grain flow and structural integrity, minimizing internal defects and improving fatigue performance.
Key Features:
One-piece free forging for enhanced durability and structural consistency
Optional heat treatments (Q+T or normalizing) for surface hardness and core ductility
Machined treads, flanges, and bores with strict dimensional tolerances
Custom profiles for double-flanged, single-flanged, and flat-wheel designs
Applications:
Port gantry cranes, container terminals, shipyard bridge cranes
Rail-mounted stacking cranes, rubber-tyred gantry systems (RTGs)
Heavy industrial overhead cranes and transfer carts
| Item | Details |
|---|---|
| Product Name | Heavy-Duty Gantry Crane Wheel Free Forging for Port and Industrial Crane Applications |
| Material Grades | - High-strength steels: 42CrMo4 - Excellent wear resistance, surface hardness, and load-bearing performance in repetitive rolling operations |
| Forging Equipment | - Hydraulic hammers: 5T / 8T / 12T - 3600T open-die forging press capable of producing large-diameter, solid or hubbed wheel forgings - Supports integrated tread and flange profiles |
| Manufacturing Process | Hot Forging → Normalizing / Quenching + Tempering → Ultrasonic Testing → Rough / Semi-Finish Machining → Dimensional & Surface Inspection |
| Forging Ratio | ≥ 3.0 — Promotes directional grain orientation for improved fatigue resistance and impact absorption in high-cycle crane operation |
| Applications | - Gantry cranes and container stackers at ports and shipyards - Bridge cranes, RTGs, and industrial transfer carts - Rail-mounted and rubber-tyred crane systems |
| Heat Treatment Options | - Quenched + Tempered for core strength and surface hardness - Normalizing for uniform grain refinement - Optional stress relief before finish machining |
| Testing & Inspection | - Chemical: Alloy verification via spectrometer analysis - Mechanical: Hardness, tensile strength, yield, impact resistance (transverse & axial) - Ultrasonic (UT): Full-body flaw scanning - Dimensional: Tread concentricity, flange thickness, bore alignment |
| Value-Added Services | - Pre-machining of flanges, bores, keyways, or custom tread profiles - Full traceability with heat number, forging batch, and inspection reports |
The steel forgings production flow:
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.
Packaging & Delivery
Rust-preventive coating
Heavy-duty seaworthy wooden boxes
Custom labeling and barcoding
Global shipping support with flexible delivery terms (FOB, CIF, EXW)
Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.
2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.
3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.
4. What is your production lead time?
With stock: Around 30 days
Without stock: 40–45 days
5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.
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.