Forged shafts play a vital role in industrial equipment and power systems, facing high torque, impact, and frequent operation. Compared to cast or machined shafts, they offer superior metal flow, higher fatigue resistance, and more reliable mechanical performance—ideal for long-term use.
Chalco provides custom and batch production of forged shafts in aluminum, titanium, and steel alloys, covering solid, hollow, flange, and eccentric types. We help you streamline selection and procurement with expert technical support.
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Chalco forged Shaft product type overview
According to different equipment structures, operating conditions and connection forms, forged shafts have derived various types in structural design. Chalco provides customization and mass production services for a full range of shaft forgings, supporting a complete delivery path from blanks to finishing, and is suitable for high-intensity application scenarios such as aerospace, wind power equipment, heavy machinery, and rail transportation.Quick Quote
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Solid Forged Shaft
The universal foundation structure is widely used in supporting shafts, rotating shafts, transmission shafts and other parts, and is suitable for various industrial equipment transmission systems.
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Hollow Forged Shaft
It significantly reduces weight while maintaining shaft strength, improving power response efficiency, and is commonly used in wind turbine main shafts, large motor shafts, and other occasions.
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Stepped Forged Shaft
The multi-stage diameter change structure facilitates the assembly of bearings, seals, flanges and other components, and is a common configuration in the fields of aviation, hydraulics and compressors.
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Flanged Forged Shaft
The one-piece forged flange structure enhances the connection strength and sealing performance, and is widely used in heavy-load systems such as wind power, ships, and metallurgical equipment.
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Forged Crankshaft
The complex structure shaft with multiple eccentric crankshafts and connecting rod necks is widely used in high-load reciprocating motion systems such as engines, diesel engines, and compressors.
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Rotor Forged Shaft
Used in the core rotor structure of motors, gas turbines, blowers and other equipment. It is usually a long shaft or a hollow shaft, emphasizing symmetry and fatigue performance.
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Spline Forged Shaft
The surface is processed with spline teeth, which are used for torque transmission and power output connection, such as transmission output shaft, speed change system coupling and other key components.
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Eccentric Forged Shaft
The axis deviation design is adapted to special mechanical systems such as compressors and reciprocating pumps. It is a special-shaped variant of the step shaft and is more difficult to forge.
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Gear Forged Shaft
With the gear segment or bevel gear structure, it is commonly used in automotive differentials and heavy-load transmission systems, and has high strength and reliable meshing performance.
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Custom Forged Shaft
Including multi-section composite structures, special-shaped connection ends, hole/keyway processing, etc. Customized design and manufacturing according to customer drawings and usage requirements.
If you need customized forged eccentric shafts, rotor shafts, main shafts, suction shafts, hot shafts and other structural parts, please submit drawings and we can evaluate the forging path, heat treatment plan and processing support methods.
Chalco forged shaft product inventory alloy material and performance advantages
Aluminum forged shaft
Lightweight, high-strength, and heat-treatable, it is the preferred material for lightweight aerospace, rail transit, and high-end equipment structures. Chalco supplies aluminum alloy forged shafts of various specifications all year round, supporting T6, T651, T73, T7451 and other states, and has the ability to deliver from blank forging to finished products.Quick Quote
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6061-T6/T651 aluminum forging
General structural material with stable strength and good weldability, suitable for aviation connecting shafts and automobile transmission shafts
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7075-T73/T651 aluminum forging
Ultra-high strength, widely used in aircraft spindles, motion mechanism shafts, and military structural parts
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2024-T6/T42 aluminum forging
Excellent fatigue resistance, suitable for vibration parts such as engine connecting shafts, propeller shafts, and air intake shafts
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7050-T7451 aluminum forging
High strength and corrosion resistance, commonly used in thick-walled heavy-load transmission shafts, compression spindles, and nuclear power equipment spindles
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6082-T6 aluminum forging
Excellent formability and processability, suitable for rail vehicle shafts and electric machinery hollow shafts
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2219-T6/T31 aluminum forging
Good high temperature strength, suitable for aircraft engines, hydraulic system transmission shafts
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7475-T7351 aluminum forging
Excellent fracture toughness, suitable for rotating parts and spindle structures with high safety level
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2618-T61 aluminum forging
Strong thermal creep resistance, used for hot end shafts of aircraft engines
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5052/5083-O/H112 aluminum forging
Outstanding corrosion resistance, suitable for transmission shafts, sealing shafts, etc. for offshore engineering, ships and chemical equipment
- Excellent specific strength and lightweight capability, reducing system load
- Good processability and weldability, suitable for various end structure requirements
- Can support heat treatment strengthening, strong adjustability of mechanical properties
- With high-precision processing and flaw detection delivery capabilities, suitable for high-standard engineering scenarios



Titanium forged shaft
With extremely high strength-to-weight ratio, excellent corrosion resistance and biocompatibility, titanium alloy forged shafts are widely used in aerospace, marine engineering, military systems and high-end equipment manufacturing. Chalco supports free forging and die forging of various titanium alloy forged shafts , and has a stable heat treatment and finishing system.Quick Quote
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TC4 (Grade 5)
The most commonly used α+β titanium alloy, with high strength and excellent comprehensive performance, suitable for aviation shafts and structural spindles
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TA2 (Grade 2)
Pure titanium material, excellent corrosion resistance, suitable for low-load environments such as seawater shafts and chemical conveying shafts
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TC6
Medium-strength titanium alloy with good weldability and processability, commonly used in civil aircraft transmission shafts and support shafts
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TC11
Strong high temperature strength, suitable for aircraft engines, hot end power shafts and other parts with high requirements
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TC18 (Ti-5Al-5Mo-5V-1Cr-1Fe)
β-type high-strength titanium, commonly used in military high-load structural shafts
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TA10 (Ti-6Al-2Nb-1Ta)
Excellent corrosion resistance and toughness, suitable for shafts in deep-sea equipment and reaction environments
- Excellent strength/weight ratio, especially suitable for weight reduction and precision control scenarios
- Excellent corrosion resistance, suitable for marine/acid/alkali/chemical media environments
- Good fatigue performance and toughness, more reliable for key structural parts
- Supports free forging, die forging, heat treatment and flaw detection, suitable for high-standard military and aerospace projects



Steel forged shaft
Steel forged shafts are the most widely used shaft materials in large heavy-duty equipment, power transmission systems and engineering machinery due to their excellent strength, rigidity and cost control advantages. Chalco has the ability to forge large steel ingots and die forging supporting systems, and has long provided a variety of structural steel, alloy steel, and stainless-steel forged shaft products, and supports rough processing, quenching and tempering, and third-party flaw detection.Quick Quote
- High strength, high toughness, suitable for heavy load and impact conditions
- Mature technology, controllable material costs, strong support for delivery and batch size
- Supports quenching and tempering, UT flaw detection, dimension control, non-standard end processing and other services
- Can be delivered according to ASTM, GB, DIN, ASME and other standards



Chalco forged shaft manufacturing capabilities and precision machining services
Chalco offers comprehensive forged shaft manufacturing capabilities, ensuring every product meets the highest standards of strength, precision, and reliability:
Full forging capabilities: Free forging up to 80, 000kg, die forging, and integrated forming of stepped and hollow shafts
Multi-material support: Aluminum, titanium, alloy steel, and stainless steel with customizable heat treatments and flaw detection
Large-scale precision machining: CNC turning, drilling, keyway cutting, and multi-structure interface processing with ±0.05mm tolerance
Strict quality control: Ultrasonic flaw detection, mechanical testing, dimensional inspection, and full documentation
Third-party certifications: SGS, TÜV, BV, and other authoritative approvals
Extensive industrial experience: Supplying aerospace, military, wind power, shipbuilding, and heavy equipment sectors




Chalco forged shaft cooperation areas and customer examples
Forged shafts, as core load-bearing components, are essential across high-performance engineering fields—from aircraft engines and wind turbine shafts to heavy-duty industrial transmissions—facing diverse demands on strength, precision, and material adaptability. Chalco leverages extensive industry experience to deliver customized forged shaft solutions for aerospace, wind power, nuclear power, rail transit, automotive, engineering machinery, military systems, and more.Quick Quote
Aerospace · High reliability guarantee of precision forged shafts
Forged shafts in aerospace are critical to engines, transmissions, landing gear, and control systems, often working under high speed, vibration, temperature, and corrosive conditions. These applications demand superior fatigue life, strength-to-weight ratio, and structural integrity.
Chalco meets these challenges with high-strength aluminum and titanium alloys treated with T6/T73, along with grain flow control, flaw detection, and CNC machining for complex shaft types—ensuring performance, reliability, and precision.
Application area | Supporting Products | Material Type | Features |
Engine intake shaft | Small diameter stepped shaft, spiral groove structure forged shaft | 2024-T6 Aluminum Alloy | Anti-fatigue, moderate strength, lightweight structure |
Flight control system connecting rod shaft | High-strength aluminum alloy long axis/ hollow axis structure | 7075-T73 aluminum alloy | High specific strength, fast dynamic response, good seismic resistance |
Landing gear connecting shaft | Die forged flange shaft, multi-section special-shaped shaft | TC4 Titanium Alloy | Strong corrosion resistance and high stability |
Turbine power transmission shaft | Multi-section rotor shaft + precision turning end keyway | TC11 Titanium Alloy | High temperature resistance, suitable for hot end high load parts |
Chalco supports aviation forging standards such as AMS and HB/Z, and has lightweight and high-strength material systems, precision processing and non-destructive testing capabilities, serving the long-term delivery needs of multiple types of aircraft and aero-engine platforms. Quick Quote


Wind power and nuclear power · Performance assurance of large hollow shafts and main shaft structures
Forged shafts in wind and nuclear power systems are used in key load-bearing components such as main shafts, coupling shafts, and rotor connectors. These shafts often require large dimensions, high torque capacity, long service life, corrosion resistance, and, in some nuclear applications, high-temperature stability and low magnetic permeability.
Chalco addresses these demands with free forging and deep hole machining for size stability, offers corrosion-resistant aluminum, stainless steel, and titanium alloys, and ensures heavy-duty performance through full-process heat treatment and ultrasonic flaw detection.
Application area | Supporting Products | Material Type | Features |
Wind turbine main shaft | Large diameter hollow shaft (≥Ø800mm) | 7050-T7451 aluminum alloy | High strength, lightweight, excellent fatigue resistance |
Coupling connecting shaft | Die forged flange shaft + pre-drilled hole | 6082-T6 Aluminum Alloy | Good processability, stable structure, easy to assemble |
Nuclear reactor system drive shaft | Thick-walled solid shaft + precision-turned end mating surface | TA2 Titanium Alloy | Corrosion and radiation resistant, suitable for closed environment systems |
Our forged shafts demonstrate significant advantages in the energy sector through full-process control of size, strength, and lifespan, especially for wind turbine main shafts and nuclear-grade structural components. Quick Quote


Engineering equipment· forged shaft solutions for high- load impact environments
Forged shafts are widely used in engineering machinery such as excavators, crawler vehicles, hydraulic stations, and lifting systems, serving as key components for power output, load transfer, and rotation support. These applications involve heavy impact loads, frequent operation, and harsh environments, requiring excellent rigidity, toughness, and heat treatment stability.
Chalco meets these challenges with high-strength aluminum alloys and medium carbon steels, quenching and flaw detection processes, corrosion-resistant materials, sealed structure capabilities, and CNC machining for stepped and multi-section shaft designs.
Application area | Supporting Products | Material Type | Features |
Hydraulic PTO shaft | Large diameter solid shaft + custom keyway end | 6061-T651 aluminum alloy | Moderate strength, stable structure, flexible processing |
Track support step shaft | Step forged shaft + reserved positioning hole structure | 7075-T73 aluminum alloy | High strength and wear resistance, suitable for frequent movement structures |
Impact swivel bearing shaft | Solid long shaft + rough machining connection | TC6 Titanium Alloy | Impact resistant, good toughness, suitable for sealing structural parts |
Chalco has been equipped with various types of structural shafts for engineering machinery, supporting special-shaped forging, step structure processing and large-scale tempering supply, and adapting to complex working conditions such as multi-frequency vibration and strong impact. Quick Quote


Automobile manufacturing· mass forging solutions for lightweight high-frequency components
In automotive engine, transmission, and electric drive systems, forged shafts are essential for power output and structural support. These components operate at high frequency, in compact assemblies, and in large volumes—demanding long fatigue life, precise fit, lightweight performance, and compatibility with automated assembly.
Chalco responds with high-fatigue aluminum alloys and controlled heat treatment, precision CNC finishing with optimized clamping interfaces, and efficient batch forging with standardized machining to balance performance and cost.
Application area | Supporting Products | Material Type | Features |
Engine crankshaft | Multi-section eccentric forged shaft + pre- processed corner position | 4032-T6 Aluminum Alloy | High fatigue strength, high temperature resistance , light weight |
Gearbox coupling shaft | Step structure + fine turning keyway end | 2024-T6 Aluminum Alloy | Fast dynamic response, compact structure, high matching precision |
Electric drive reduction shaft | Solid shaft + threaded end processing | TC6 Titanium Alloy | High strength, good processability, suitable for electric drive high speed structure |
Application area | Supporting Products | Material Type | Features |


Defense industry · safety-grade forging support for mission-critical components
In missile systems, tracked vehicles, radar units, shipboard assemblies, and other mobile platforms, forged shafts serve as critical connectors in drive, control, and stabilization systems. These shafts must endure extreme environments, shock loads, and reliability demands beyond standard specifications, often requiring custom designs with complex structures and strict material and dimensional tolerances.
Chalco meets these challenges with high-strength titanium and high-toughness aluminum alloys, specialized heat treatment, and integrated multi-stage forming. We support military-grade customization, full-process quality traceability, and secure processing for confidential, high-complexity applications.
Application area | Supporting Products | Material Type | Features |
Missile tail attitude control axis | Hollow forged shaft + end taper structure | 7050-T7451 aluminum alloy | High strength, fast response, suitable for dynamic posture control device |
Tracked vehicle reduction shaft | Multi-section solid shaft + flange integrated | 7075-T73 aluminum alloy | Shock-resistant, vibration-resistant, and structurally stable |
Shipborne radar rotation axis | Precision hollow flange shaft + pre-positioning hole | TC18 Titanium Alloy | Combining strength and corrosion resistance, suitable for rotating parts with high safety level |
Chalco has the ability to deliver military projects in confidentiality, supports high-strength alloy systems, composite structure forging and complete testing and certification, and meets the use standards of high-security combat platforms. Quick Quote


Rail transit and shipbuilding· high adaptability forging of long-life structural shafts
In high-speed trains, subways, and marine power systems, forged shafts are used in key components like wheel axles, linkage shafts, steering drives, and propeller shafts. These applications require long service life under continuous load, resistance to humidity and corrosion, and high standards for fatigue strength, precision, and material durability.
Chalco addresses these needs with corrosion-resistant aluminum and titanium alloys, supported by anodizing and electroplating. We optimize grain structure and heat treatment for fatigue resistance, and ensure precision through CNC machining and full-process UT inspection.
Application area | Supporting Products | Material Type | Features |
High-speed train drive shaft | Step forged shaft + multi-segment keyway structure | 7050-T7451 aluminum alloy | High strength, light weight, fatigue resistance, smooth operation |
Ship steering gear drive shaft | Long solid shaft + end flange processing | 5083-O Aluminum Alloy | Resistant to seawater corrosion, suitable for humid cabin environment |
Propeller connecting shaft | Hollow shaft + rough machining positioning end | TA10 Titanium Alloy | Strong corrosion resistance, suitable for high humidity/salt spray operating environment |
The product can support whole-section UT flaw detection, probe-type dimensional detection and multi-section heat treatment state delivery, and widely serves the supporting projects of rail train main shafts and ship power systems. Quick Quote


Why choose Chalco as your forged shaft partner
With deep expertise in high-strength, customized forged shafts, Chalco provides more than manufacturing — we deliver tailored solutions aligned with your industry needs:
- End-to-end transparency with traceable and strictly managed steps from raw materials to precision delivery.
- Multi-dimensional solutions based on industry insights, material adaptation, and structural optimization tailored to your project.
- Reliable delivery with commitment to on-time shipments and consistent quality.
- Professional support including customized drawings, dedicated one-on-one project management, and expert recommendations on materials and heat treatments.
- Agile responsiveness through expedited trial production and sample verification for urgent projects.
- Full traceability with complete tracking of material certificates, heat treatment records, and test data.
Welcome to contact us for drawing evaluation, technical consultation or exclusive quotation
→ Please click Contact or send your project information to Chalco mail, our engineering team will respond within 24 hours!


Knowledge center and FAQ about purchasing forged shafts
Understanding the forging process of shafts
Forged shafts are produced by heating metal billets to a high temperature and shaping them through free forging or die forging. This process refines the metal’s grain structure, resulting in higher density, improved strength, and greater durability compared to conventional machined shafts made from rolled bars.
Chalco's manufacturing system covers the entire process chain:
- Raw material selection for optimal alloy properties
- Free forging and die forging to form complex shapes like stepped shafts, hollow shafts, and flanges
- Precise heat treatment (e.g., T6, T651, annealing, quenching) to tailor mechanical properties
- CNC machining to achieve tight tolerances and complex interfaces
- Rigorous testing including ultrasonic flaw detection and mechanical tests
- Full documentation and quality traceability
This ensures each forged shaft meets stringent industry standards for aerospace, automotive, energy, and other demanding sectors.
What is the difference between a forged shaft and a conventional machined shaft?
Forged shafts are formed by free forging or die forging in a high temperature plastic state. They have the characteristics of high density, excellent grain structure, and more stable mechanical properties. They are particularly suitable for heavy-load, high-speed or high-strength structural parts. Ordinary lathe- machined shafts are mostly formed by turning rolled bars, which are suitable for non-critical parts or medium and low-load applications.
Can you customize forged shafts with special structures according to drawings?
Of course. Chalco supports the design and processing of special-shaped structures such as customized drawings, stepped shafts, hollow shafts, flange shafts, eccentric shafts, rotor shafts, etc. Our engineering team can assist in optimizing the structure, material selection and heat treatment path to ensure performance and assembly adaptability.
Can I choose different materials? What are the heat treatment conditions?
Supports a full range of materials: aluminum alloy, titanium alloy, structural steel, stainless steel, etc. Common conditions include: T6, T651, T73, annealing, quenching and tempering, solution + aging, etc. Chalco can recommend the most suitable alloy and treatment plan according to your application conditions.
Do you provide quality testing and third-party certification?
Yes, we provide full-process quality documents such as material reports, heat treatment records, dimensional inspection, UT ultrasonic flaw detection, mechanical properties testing, etc. We support third-party testing and certification services such as SGS, TÜV, BV, etc.
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
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