Ultra-high-speed motors

Ultra-High-Speed Motors: Precision-Engineered Solutions for Critical Industrial Applications

Our Ultra-high-speed motors provide unsurpassed performance for applications needing great power density and dependability at speeds beyond 10,000 RPM. These motors are small, precise to the extreme, produced by Tellhow Shenyang Electric Machine Co., Ltd. and are for applications of tens of thousands and even hundreds of thousands of revolutions per minute. All units are in our 190,000 square meter plant, with a registered capital of RMB 500 million, with modern bearing systems (air or magnetic), unique cooling, and high-frequency controllers. Proprietary magnetic circuit architectures, 15-20% energy consumption reduction and operating speeds make them excellent for high-speed centrifugal compressors, precision spindles, tiny gas turbines, flywheel energy storage, and laboratory centrifuges.

What Makes Our High-Speed Motor Solutions Stand Out?

Extreme Power Density in Compact Form

You get maximum output from a minimum footprint. Our technical team has optimized every millimeter to provide you with outstanding torque and speed capabilities in space-constrained applications.

Advanced Rotor Protection Technology

Your magnets remain locked under intense centrifugal pressures. We use high-tensile carbon fiber or non-magnetic metal sleeves to provide the required pre-stress to avoid catastrophic rotor failure.

Intelligent Thermal Management

We have developed our liquid cooling systems to remove the problem of heat dispersion. The rotor and stator losses are minimized by high-thermal-conductivity potting materials and tailored air-gap designs, keeping the temperature below the safe operating limits.

Non-Contact Bearing Options

Foil bearings or active magnetic bearings (AMB) may be used for applications over 100’000 RPM. These methods overcome the limitations of the DN limit and the maintenance problems of ceramic ball bearings.

Technical Specifications

Industries We Serve

High-Speed Fluid Machinery

Your Centrifugal Compressors and Blowers increase efficiency and dependability. Our Ultra-high-speed motors offer the quick acceleration and sustained high speed operation necessary for demanding petrochemical and gas processing applications.

Precision Machining Centers

The machine tool spindle has excellent rotational precision and low vibration. You get better surface finishes and closer tolerances for aerospace and automotive component manufacture.

Energy Storage Systems

Flywheel installations need motors to be able to charge and discharge quickly. Our technologies provide quick torque response and sophisticated adaptive load management for grid stability and backup power applications.

Laboratory and Medical Equipment

Centrifuges need steady high speed operation. You will like the low noise characteristics and the small structural design which fits into research and clinical situations.

Why Choose Tellhow Ultra-High-Speed Motors?

Proven Quality Control Process

Every unit is rigorously validated:

• Testing Dynamic Balancing at maximum operating RPM removes resonance fatigue
• Rotor overspeed testing (1.1x to 1.2x rated speed) validates the centrifugal stress estimates.
• Partial Discharge Testing protects long-life of stator windings at high frequency VFD switching
• Thermal Rise Mapping verifies cooling effectiveness
• Vibration Spectrum Analysis reveals probable sub-synchronous instabilities

Comprehensive Customization Capabilities

We customise to your precise needs:

• Custom power and speed configurations
• Tailored insulation class optimization
• Structural modifications for unique mounting conditions
• Flexible ODM/OEM production for both small batches and large-scale orders

Global Compliance and Support

Our multi-standard certifications (CE, UL, VDE, SASO, SNI, PSE, KC, CCC) assist your worldwide operations. We offer you with a worldwide service network, giving you prompt technical assistance, skilled engineering advice and a reliable supply of replacement parts for the entire life of your motor.

Real-World Performance Advantages

Lower Total Cost of Ownership

You lower operating costs over the long run, using less energy and requiring less maintenance. Mechanical wear is almost eliminated with non-contact bearing systems.

Enhanced Operational Safety

High precision manufacture and rigorous tolerance control (sometimes to the micron) keep air gaps closed, which is crucial for effective electromagnetic flux and avoiding catastrophic failures.

Seamless System Integration

Our Ultra-high-speed motors work harmoniously with intelligent manufacturing systems. Multi-dimensional condition monitoring provides real-time operational insights, enabling predictive maintenance strategies.

Partner with a Trusted Motor Manufacturing Leader

Tellhow Shenyang Electric Machine Co., Ltd. is a precision motor manufacturer with more than 10 years of professional expertise. We have 49 product lines and over 2,100 specifications that support vital sectors throughout the globe – powering generation, petrochemicals, environmental protection and sophisticated manufacturing.

With our concept of “National Tellhow, International Tellhow”, we are devoted to technical innovation, intelligent production and sustainable development. With a manufacturing capacity of 8 million kW and full in-house capabilities from design to final test, you are assured of motors developed for perfection.

Frequently Asked Questions

Q: How is heat dissipation managed in product given their small size?

A: We utilize specialized liquid cooling with high-thermal-conductivity potting and optimized air-gap geometries to mitigate rotor and stator losses effectively.

Q: What bearing technology is recommended for speeds above 100,000 RPM?

A: For these speeds, we recommend foil bearings or active magnetic bearings (AMB) to avoid the DN limit and maintenance issues of ceramic ball bearings.

Q: How do your motors handle centrifugal force on the magnets?

A: We use high-tensile carbon fiber or non-magnetic metallic sleeves (sleeving technology) to provide the necessary pre-stress to the permanent magnets, ensuring structural integrity.

Q: Can standard VFDs drive product?

A: No, they require high-switching-frequency inverters (typically >20kHz) with low-latency control loops to maintain stability at high fundamental frequencies.

Q: What is the typical lifespan of these motors?

A: With non-contact bearings and proper thermal management, the MTBF (Mean Time Between Failures) can exceed 50,000 hours. Lifespan is limited primarily by electronics and insulation aging rather than mechanical wear.

Q: What quality certifications do your motors hold?

A: Our products comply with CE, UL, VDE, SASO, SNI, PSE, KC, CCC, and various international energy-efficiency standards, ensuring global market accessibility.

Q: Do you offer custom configurations?

A: Absolutely. We provide flexible customization including power ratings, speed configurations, insulation classes, structural modifications, and both ODM/OEM production services.

Contact Us

Ready to discuss your requirements for Ultra-high-speed motors? Email us at sxmotor@yeah.net for technical consultation and custom solutions.