Technology / product information

Stainless steel metal sleeves for high-speed motors reinforce the rotors of electric compressors and high-speed motors used in household appliances, providing high resistance to centrifugal forces. Conventional sleeves made from nickel or titanium alloys are costly and impose design constraints, but our innovative spinning process reduces costs by over 50% while achieving tensile strengths of 1,100–1,200 MPa. These sleeves are the ideal solution for enhancing the reliability and efficiency of high-speed motors and electric devices.

■ Features
- High mechanical strength: The spinning process utilizes work hardening effects to achieve tensile strengths of 1,100–1,200 MPa, equivalent to nickel and titanium alloys.
- Cost reduction: Reduces material and processing costs by over 50% compared to conventional metal sleeves.
- Compatibility with high-speed motors: Designed to reinforce the rotors of electric compressors and high-speed motors for household appliances, as well as applications in electric vehicles and industrial equipment.

■ Specifications
- Processable dimensions: Inner diameter φ10–φ50mm, thickness t0.30–t3.0mm, length L10–L100mm.
- Inner surface roughness: Achieves Rz1.5µm or less.
- Tensile strength / 0.2% proof strength: Tensile strength 1,100–1,200 MPa, 0.2% proof strength 1,000–1,100 MPa.
- Materials: Made from SUS316L, offering excellent corrosion resistance and mechanical strength.

■ Applications
- Rotor reinforcement for high-speed motors: Designed to withstand centrifugal forces in electric compressors and high-speed motors for household appliances.
- Rotor magnet protection for electric devices: Reinforcement components for permanent magnets in electric vehicles (EVs) and industrial equipment.
- Other industrial uses: Applicable to various mechanical components requiring high strength and durability.

This stainless steel metal sleeve combines cost efficiency with high performance, setting a new standard for the design and manufacturing of electric devices. By leveraging spinning technology, we offer customizable solutions tailored to customer needs.

Endo Metal Sleeve (Thailand) Co., Ltd., headquartered in Chachoengsao Province, Thailand, provides services throughout the country.

■ For more information, please download the PDF or feel free to contact us.