Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000Tons |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 18CrNiMo7-6 and more |
| Shape | According to the drawing |
| Corrosion Resistance | Yes |
| Customization Options | Available |
| Size | Customizable |
| Durability | Wear-resistant |
| Precision | As requested |
| Usage | Offshore Drilling Equipment |
| Brand Name | Tiangong |
| Model Number | TG-190 |
| Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China |
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Product Specification
| Payment Terms | ,T/T | Supply Ability | 56000Tons |
| Delivery Time | 30 days | Packaging Details | Pallet |
| Material | 18CrNiMo7-6 and more | Shape | According to the drawing |
| Corrosion Resistance | Yes | Customization Options | Available |
| Size | Customizable | Durability | Wear-resistant |
| Precision | As requested | Usage | Offshore Drilling Equipment |
| Brand Name | Tiangong | Model Number | TG-190 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | alloy steel drive shafts ，offshore drilling drive shafts ，forged alloy steel shafts | ||
Alloy Steel Drive Shafts for Offshore Drilling Equipment
Alloy steel drive shafts are engineered to deliver exceptional power transmission and durability in the harsh offshore drilling environment. Produced from high-strength grades such as 42CrMo4 and 30CrNiMo8, each shaft undergoes precision forging, controlled heat treatment, and rigorous inspection to ensure structural integrity, fatigue resistance, and long service life.
Key Features:
High torsional strength and excellent shock-load resistance.
Optimized alloy steel composition for superior toughness and wear resistance.
Precision forging and machining for accurate dimensions and smooth rotation.
Enhanced surface treatments to withstand corrosion and saltwater exposure.
Applications:
These forged alloy steel drive shafts are widely applied in offshore drilling equipment, including top drives, mud pumps, rotary tables, and transmission systems. Their robustness and reliability ensure continuous operation in demanding oil and gas exploration environments, minimizing downtime and maximizing drilling efficiency.
| Item | Details (Alloy Steel Drive Shafts – Offshore Drilling Equipment) |
|---|---|
| Available Materials | 42CrMo4, 30CrNiMo8, 34CrNiMo6, 18CrNiMo7-6 – optimized for torsional strength, shock resistance, and marine corrosion protection |
| Forging Equipment | Open-die hydraulic hammers (5T / 8T / 12T) – Suitable for long shaft forging, refined grain flow, and structural integrity under high torque loads |
| Application Field | Designed for offshore drilling systems, including top drives, rotary tables, and mud pumps – ensuring reliable torque transmission in harsh marine environments |
| Manufacturing Process | Forging → Heat Treatment (Quenching + Tempering) → Rough Machining → Precision Machining (if required) – Guarantees strength, stability, and dimensional accuracy |
| Forging Ratio | ≥ 3.5 – Delivers superior fatigue resistance, toughness, and shock-load durability under cyclic offshore operating conditions |
| Delivery Condition | Supplied as rough-machined or fully finished drive shafts, with optional surface hardening and anti-corrosion treatments for saltwater exposure |
| Testing & Inspection | Full testing capabilities including spectrometer analysis, ultrasonic flaw detection, tensile & impact testing, hardness checks, and dimensional inspection of shafts up to several meters in length |
| Integrated Services | Comprehensive services from forging and heat treatment to machining, packaging, inland transportation, port clearance, and ocean freight – all in compliance with offshore industry standards (API, ABS, or customer specifications) |
The steel forgings production flow:
Incoming material check → unloading and handling → quality inspection → preheating to forging temperature → forging and forming → subsequent heat treatment → quality control inspection → rough machining of forged blanks → non-destructive testing → final dimensional inspection → packing → delivery to customer.
Frequently Asked Questions (FAQs)
What weight range can your forgings cover?
We produce forged components from 100 kg up to 7,000 kg, making them suitable for both medium and heavy industrial applications.
Do you offer heat treatment and machining capabilities?
Yes. Our facility is fully equipped to carry out heat treatment processes such as normalizing and tempering, as well as rough and precision machining according to customer requirements.
Which sectors do you supply?
Our products are commonly used across wind energy, mining and construction machinery, port handling equipment, transmission systems, and various other heavy industries.
What is your usual production lead time?
Standard stock: Around 30 days
Custom forgings: Typically 40–45 days, depending on part size and technical complexity
Where is your factory based?
We are located in Changzhou, Jiangsu Province, close to Shanghai, with the majority of exports shipped via Shanghai Port to ensure fast and reliable delivery.
Request a Quote
Please share your engineering drawings and requirements with us. Our technical specialists will review the details and quickly provide you with a tailored quotation and professional solution.
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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