Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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The Marine Grade Forged Gear Shaft for Propulsion Systems is specially engineered for high-load, corrosion-prone marine environments. Manufactured from high-strength alloy or stainless steels and processed through precision forging, this shaft ensures excellent mechanical performance, dimensional accuracy, and long-term reliability under extreme operating conditions.
Key Properties:
High torsional strength and bending resistance
Enhanced surface hardness through heat treatment
Optional nitriding or carburizing for improved wear resistance
Superior fatigue performance under dynamic marine loads
Typical Applications:
Designed for marine propulsion systems including:
Ship main propulsion gearboxes
Azimuth thrusters and propulsion shafts
Marine engine transmission systems
High-power reduction gears in commercial and naval vessels
Packaging & Delivery
Rust-preventive coating
Heavy-duty seaworthy wooden boxes
Custom labeling and barcoding
Global shipping support with flexible delivery terms (FOB, CIF, EXW)
| Item | Details |
|---|---|
| Product Name | Marine Grade Forged Gear Shaft for Propulsion Systems |
| Materials | Customized according to customer requirements |
| Forging Method | Open-die forging,Free forging |
| Heat Treatment | Carburizing, Tempering, Normalizing |
| Applications | Marine propulsion gear shafts |
| Surface Condition | Rough machined, finish machined, or as-forged |
| Inspection | UT, Hardness Test, Mechanical Properties, Dimensional Check |
| Customization | Available upon drawing or specification |
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)→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.
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.