![]()
Changsha Changli Group Co., Ltd.
Its core business is electric motor manufacturing.
Key products include standard asynchronous motors, variable-frequency speed-regulating motors, permanent magnet motors, high-efficiency energy-saving motors, wound-rotor motors, and large synchronous motors.
The products have a wide range of applications.
They are used in industries such as metallurgy, papermaking, chemicals, cement machinery, electric power, and water conservancy, and are exported to regions including Europe, Southeast Asia, the United States, and Russia.
![]()
![]()
TL series synchronous motors comply with the standard JB/T 8667.2, "Technical Specifications for Large Three-Phase Synchronous Motors – Part 2: TL Series." Their power ratings and mounting dimensions meet the company's internal standards as well as IEC (International Electrotechnical Commission) and German standards; they serve as matching components for related equipment and can also act as replacements for certain well-known products.
Power range: 500–15,000 kW
Voltage: 6,000 V, 10,000 V
Speed: 375, 333, 300, 250, 214, 188, 167, 150, 136, 125 rpm
Rated frequency: 50 Hz or 60 Hz
Frequency: 50 Hz, 60 Hz
Protection class: IP23, IP44, IP54
Insulation class: F (H)
Duty type: S1
Cooling method: IC01, IC81W
Mounting arrangement: IM8421
Standard: IEC 60034
Variants of this series—designed for outdoor (W), humid tropical (TH), and outdoor humid tropical (THW) environments—share the same performance specifications, mounting arrangements, and overall dimensions as the basic series.
High Efficiency and Energy Saving: Advanced design ensures high operational efficiency, low noise levels, and significant energy savings.
Robust Vertical Structure: Features a welded box-type steel base with reinforced corners, ensuring high rigidity and minimal vibration.
Advanced Cooling System: Utilizes IC01/IC81W cooling modes, equipped with oil-water coolers and a dual leak-proof design.
Comprehensive Monitoring: Equipped with sensors for monitoring winding temperature, bearing temperature, vibration, and water leakage.
Customizable Voltage Options: Offers a wide range of voltage ratings—including 11kV, 10kV, 6.6kV, 6kV, 4160V, 3000V, and 3300V—to meet specific power requirements.
Flexible Protection Ratings: Available with IP00, IP21, IP23, IP44, IP54, and IP55 protection ratings to suit various operating environments.
High-Quality Bearings: Uses SKF or equivalent bearings, featuring an advanced circular thrust pad design to ensure stability.
Customizable Colors: Professional painters can mix and apply any color according to customer specifications.
Raw Materials
Frame: Cast iron, steel; Stator: Copper
Rotor: Copper/Aluminum;
Shaft: 45# steel;
Bearings: SKF or equivalent
Packaging and Coating
Standard seaworthy packaging suitable for export. Plywood
packaging or fumigated wooden packaging,
suitable for long-distance ocean transport.
Standard coating thickness: 120 microns (40-micron primer and 80-micron topcoat).
We employ professional coating specialists capable of mixing and applying any color of your choice.
Warranty Period
Standard warranty period: 12 months after commissioning or 18 months after delivery, whichever comes first.
Please contact us for details regarding extended warranty options.
Quality Control
In-process Inspection / Quality Control
All measuring equipment and instruments are calibrated annually.
Quality control is implemented for every project.
Every motor undergoes testing before leaving the factory and is shipped only after passing inspection. A test report is provided with each motor.
