Metal Shaft

Your Professional Metal Shaft Supplier!

Shenzhen Sanhexing Shaft Manufacturing Co., Ltd. is a private enterprise specializing in the customized production of various precision mechanical hardware parts and non-standard precision shafts. Specializing in the production of stainless steel motor shafts, stepped shafts, knurled shafts, screw shafts, worm shafts, gear shafts, spindles, and high-precision shaft products.

Wide range of product applications

Applied in automobiles, drones, electrical equipment, industrial robots, electronic appliances, motors, toys and other industries.

Rich experience

The company has more than 10 years of experience in this field.

Quick response

We promise to respond to your inquiries within 24 hours to ensure that you receive the information and support you need in a timely manner.

Accept ODM/OEM services

The CNC processing series has more than 16 years of experience, and can customize and process various special-shaped precision parts made of special copper and aluminum materials according to drawings or samples.

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Features of Metal Shaft

High Strength and Rigidity

Using high-strength materials such as carbon steel, stainless steel, alloy steel, titanium alloy, etc., it can withstand large torque and axial loads.

Durability

It has a long service life and can operate in harsh environments (high temperature, low temperature, corrosion, etc.), depending on the metal material and surface treatment selected.

Good Dimensional Stability and Precision

Metal shafts can be precision machined to achieve very high dimensional accuracy and surface finish, thereby ensuring good fit with other components and transmission efficiency.

Low Friction & High Finish

Using precision grinding, polishing, DLC coating and other processes to reduce surface roughness and improve movement smoothness.

Thermal Conductivity

Metal shafts have good thermal conductivity, which is important in some applications (such as motor shafts) and can help dissipate heat.

Good Corrosion Resistance

Stainless steel, nickel plating, chrome plating, anodizing and other surface treatments can enhance corrosion resistance. Suitable for humid environments, chemical equipment, food processing machinery, etc.

Application of Metal Shaft

Automotive Industry
Metal shafts are key components in engines, gearboxes, steering systems and suspension systems, and determine the stability, durability and power transmission efficiency of automobiles.

Industrial Machinery
In mechanical manufacturing, automation equipment and heavy machinery, metal shafts are used for power transmission, precision movement and load bearing.

Aerospace
Aerospace has extremely high requirements for the weight, strength, high temperature resistance and corrosion resistance of metal shafts, and usually uses materials such as titanium alloys, aviation aluminum alloys, and high-strength stainless steel.

Medical Equipment
Metal shafts in medical equipment are usually made of stainless steel to ensure corrosion resistance, non-toxicity and high precision, and are used in surgical robots, X-ray equipment, MRI scanners, dental equipment, etc.

Robotics & Automation
Robotics and automation equipment have high requirements for high precision, low friction and lightweight of shafts, and mainly use high-strength aluminum alloys, titanium alloys, stainless steel and other materials.

Electronics & Semiconductors
Semiconductor equipment and precision instruments require micro shafts and high-precision shafts, which usually use precision grinding processes and PVD/DLC coatings to ensure low friction and high wear resistance.

Types of Metal Shaft

Drive shaft
Mainly used to transmit power, connect the engine or motor with the reducer, differential, etc., and is commonly used in automobiles, engineering machinery, agricultural machinery and other fields.

Spindle
Mainly plays a supporting role, bears a small bending load, and hardly transmits torque, such as the front wheel axle of a bicycle, the pulley spindle, the spindle of a textile machine, etc.

Rotating shaft
It bears both bending moment and torque, and is the most common shaft in machinery, such as the rotating parts in equipment such as pumps, fans, and compressors.

Crankshaft
It can convert reciprocating linear motion into rotational motion or convert rotational motion into reciprocating linear motion, and is commonly used in internal combustion engines, piston compressors, etc.

Flexible shaft
It is made of multiple layers of steel wire rope spirally wound, which can bend within a certain angle range but still transmit torque. It is used in medical equipment (such as endoscopes), power tools, and other places where flexible power transmission is required.

Solid shaft
There are no holes inside, with high strength and rigidity, and is widely used in various mechanical equipment, especially when high strength requirements are required.

Hollow shaft
It is hollow in the middle and lighter than a solid shaft of the same diameter, but still maintains sufficient strength. It is often used in the aerospace field and high-speed rotating machinery (such as turbines) to reduce weight and save materials.

Stepped shaft
It has sections of different diameters along the axis, which is convenient for installing gears, bearings and other components. It is commonly found in shaft systems in reducers, gearboxes and other devices.

Spline shaft
It has straight or helical tooth-like protrusions on the surface, which are used to achieve precise force transmission and allow a certain degree of axial sliding, such as automobile gear levers, couplings, etc., which require synchronous rotation and may have slight displacement.

Worm shaft
It has a special spiral shape and is used in conjunction with a worm gear. It is often used in reduction transmission systems, such as reduction mechanisms in elevators, cranes and other equipment.

Material of Metal Shaft

Carbon steel
High strength and hardness, suitable for carrying high loads. Suitable for large-scale production. Performance can be improved by heat treatment (such as quenching, tempering).

Alloy steel

Improve strength, toughness and wear resistance, with better mechanical properties. Perform better in extreme environments such as high temperature and high pressure. Applied to engine crankshafts, gearbox gear shafts, and heavy machinery shafts.

Stainless steel

Excellent corrosion resistance and oxidation resistance, suitable for humid and corrosive environments. Good mechanical properties, with certain strength and toughness. Applied to medical equipment shafts, food machinery shafts, and chemical equipment shafts.

Aluminum alloy

Strong corrosion resistance and easy processing. Applied to aerospace, robots, and lightweight automotive parts.

Titanium alloy

High strength, excellent corrosion resistance and high temperature resistance. Suitable for applications requiring a high strength-to-weight ratio.

Copper and brass

Good electrical and thermal conductivity, strong corrosion resistance, especially brass, suitable for use in humid environments. Applied to electrical equipment shafts, instrument shafts, and valve shafts.

Special alloys

Including high temperature alloys, wear-resistant alloys, etc., mainly used in applications in extreme environments. Widely used in aviation engines, chemical equipment, etc.

Customization of Metal Shaft

Demand communication and design

●Clarify usage requirements: Communicate with customers in depth to understand the application scenarios of Metal Shaft; clarify specific performance requirements; determine environmental conditions, such as temperature, humidity, corrosiveness, etc.
●Carry out design planning: According to the needs, use professional CAD/CAM software for 3D modeling and detailed engineering drawings.

Material selection

Choose materials according to the usage requirements and working environment of Metal Shaft. Common materials include carbon steel, stainless steel, alloy steel, aluminum alloy, titanium alloy, copper, brass, etc.

Processing and manufacturing

Forging is used to improve the organization, and mechanical processing such as turning, milling, and grinding is performed, and then quenching, hard chrome plating and other surface treatments are performed.

Customized packaging design

According to the size, shape, weight and transportation requirements of Metal Shaft, tailor-made professional packaging solutions.

Quality control

After completion, comprehensive inspection is carried out, and the size and shape tolerance are measured with professional measuring tools, and defects are checked through mechanical performance testing and non-destructive testing to ensure product quality.

Surface treatment of Metal Shaft

Electroplating treatment
●Nickel plating: Increases corrosion resistance and wear resistance while having good gloss.
●Chrome plating: Increases hardness and wear resistance, suitable for automotive and motorcycle parts.
●Galvanizing: Commonly used for carbon steel shafts to prevent rust, suitable for outdoor or humid environments.

Heat treatment
●Quenching: Increases the hardness and strength of the material by rapid cooling after heating, suitable for high-load mechanical parts.
●Tempering: Heating and slowly cooling the quenched metal to reduce brittleness and increase toughness.
●Surface quenching: Quenching only the surface of the metal to increase surface hardness while maintaining core toughness.

Oxidation treatment
●Anodizing (for aluminum alloys): Increases corrosion resistance and surface hardness, and is available in a variety of colors, suitable for aerospace and consumer electronics.
●Black oxidation: Used for steel to provide rust protection, commonly used in mechanical parts.

Polishing treatment
●Polishing: Make the metal surface smooth by mechanical or chemical means, improve the appearance and reduce friction.
●Mirror polishing: Achieve high gloss, suitable for high-end products.

Phosphating treatment
●Form a phosphate coating on the metal surface to increase corrosion resistance and provide good lubrication performance, usually used for rust prevention of machine parts.

PVD coating
●Physical vapor deposition (PVD): Such as TiN coating, enhance the hardness and wear resistance of the metal surface, widely used in cutting tools and precision machinery parts.

Coating treatment
●Polymer coating (such as PTFE): Provides excellent corrosion resistance and low friction properties, suitable for environments requiring lubrication.
●Epoxy resin coating: Provides good anti-rust protection, suitable for use in chemical environments.

Cold spraying
●Through high-energy spraying of metal powder or alloy, a strong coating is formed to increase wear resistance and corrosion resistance, suitable for harsh environments.

Frequently Asked Questions

Q: What is a metal shaft?

A: A metal shaft is a rod-shaped component used in machinery to transmit power, rotate or support motion. It is usually used in applications such as motors, gears, and transmissions.

Q: What materials can be used for metal shafts?

A: Common metal materials include:
Carbon steel (such as 1045, 4140)
Stainless steel (such as 304, 316)
Aluminum alloy (such as 6061, 7075)
Copper alloy (such as brass, bronze)
Titanium alloy (such as Ti-6Al-4V)

Q: What is the customization process for metal shafts?

A: The customization process usually includes:
Demand communication: Confirm size, material, tolerance, etc.
Engineering evaluation: Design optimization, quotation.
Sample production: CNC processing, surface treatment, testing.
Customer confirmation: Enter mass production after the sample is qualified.
Mass production: Quality control, precision testing.
Packaging and delivery: Rust prevention, logistics arrangement.
After-sales support: Quality assurance, technical consultation.

Q: How to choose the surface treatment method for metal shafts?

A: The selection of surface treatment method should be based on the following factors:
The use environment (such as whether it is exposed to corrosive media)
Load requirements (such as whether it is subject to high friction and wear)
Aesthetic requirements (such as appearance finish)
Specific industry standards (such as hygiene requirements in the medical and food industries)

Q: What is the dimensional tolerance of metal shafts?

A: Generally speaking, the dimensional tolerance of metal shafts can reach:
± 0.01mm to ± 0.005mm (conventional accuracy)
For high precision requirements, it can reach ± 0.002mm or less.

Q: How to ensure the quality of metal shafts?

A: Quality assurance usually includes:
Strict material selection and supplier management
Quality inspection during production (such as dimensional measurement, surface roughness inspection)
Comprehensive inspection before final delivery (such as hardness, coaxiality test)

Q: What are the application areas of metal shafts?

A: Metal shafts are widely used in many industries, including:
Industrial machinery (motor shafts, gear shafts, roller shafts)
Automotive industry (gearbox shafts, half shafts, engine crankshafts)
Aerospace (lightweight aluminum alloy shafts, high temperature shafts)
Medical devices (surgical instrument shafts, implant shafts)
Electronics and precision equipment (servo motor shafts, printer rollers)

Q: What are the main functions of metal shafts?

A: -Power transmission: Transmit torque and rotational power from the motor or engine to other components.
-Support and alignment: Provide structural support and align components such as gears, pulleys and wheels.
-Motion control: Control the movement of mechanisms such as cams or connecting rods.
-Load bearing: Support axial or radial loads.

Q: How to deal with quality issues?

A: Suppliers usually have clear policies for handling quality issues:
Quality issues can be returned or exchanged.
Provide technical support and solutions.
Long-term cooperative customers can enjoy special after-sales service.

Q: Can you provide non-standard metal shaft customization services?

A: Yes, many suppliers provide non-standard metal shaft customization services, and customers can customize according to specific size, shape and performance requirements.

As one of the most professional metal shaft manufacturers and suppliers in China, we're featured by quality products and low price. Be free to buy customized metal shaft made in China here from our factory. Contact us for quotation and free sample.

eccentric shaft, spline shaft, Stainless Steel Small Shaft