Product Highlights
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High Efficiency & Energy Saving: Low-loss silicon steel, optimized electromagnetic design and advanced insulation reduce operational losses and lower total lifecycle electricity costs.
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Wide Customization Range: Rated power up to 25,000kW, customizable voltage from 6kV to 13.8kV, frequency 50Hz or 60Hz.
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Robust & Reliable Construction: Steel plate welded frame, F-class VPI insulation and cast aluminum or copper bar rotors provide long service life under heavy duty conditions.
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Flexible Cooling & Protection: IC01, IC611 and IC81W air-to-water cooling available, with protection classes from IP23 to IP56 on request.
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Broad Industrial Application: Ideal for driving compressors, centrifugal blowers, industrial pumps, fans, and mining equipment.
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Certified Quality: Manufactured in line with ISO9001, CCC, CE, GB755 and IEC34-1 requirements for rotating electrical machines.
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Complete Testing & QC: Routine and type tests performed in factory, with strict inspection of coils, rotors and frames. Each motor ships with a test report.
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Experienced Manufacturer: Decades of manufacturing heritage, ranked among the top motor manufacturers in China, with large annual production capacity and exports to more than 40 countries.
Product Attributes
|
Attribute
|
Value
|
Attribute
|
Value
|
|
Model NO.
|
YKS710-6-7000KW
|
Brand
|
Changli Motor
|
|
Series
|
YKS High Voltage Water-Cooled Induction Motor
|
Trademark
|
CHANGLI
|
|
Rated Power
|
7000kW
|
Voltage
|
13.8kV
|
|
Frequency
|
50Hz (60Hz available)
|
Number of Poles
|
2p to 16p
|
|
Phase
|
Three-Phase
|
Rotor Structure
|
Squirrel-Cage
|
|
Cooling Method
|
IC81W (air-to-water heat exchanger)
|
Casing Protection
|
Closed Type, IP55
|
|
Insulation Class
|
F
|
Temperature Rise
|
B
|
|
Mounting
|
IMB3
|
Rotation Direction
|
Both
|
|
Starting Mode
|
Direct on-line Starting
|
Duty Type
|
S1
|
|
Operating Speed
|
Constant Speed
|
Standard
|
IEC / GB
|
|
Application
|
Industrial, Universal
|
Ambient Temperature
|
+55°C
|
|
Customization
|
Available
|
Altitude Above Sea Level
|
1000m
|
|
Certification
|
ISO9001, CCC, CE
|
Bearing
|
SKF Bearing
|
|
Color
|
Can Be Customized
|
HS Code
|
8501530090
|
|
Transport Package
|
Standard Seaworthy Packing
|
Origin
|
China
|
|
Production Capacity
|
500,000
|
Package Gross Weight
|
16000kg
|
|
Package Size
|
450cm x 320cm x 350cm
|
Warranty
|
12 months after commissioning or 18 months after delivery
|
Product Description
YKS Series High-Voltage Water-Cooled Induction Motors (IC81W, IP44 to IP56)
The YKS Series High-Voltage Three-Phase Induction Motors combine long manufacturing experience with modern electrical engineering. By using premium low-loss silicon steel sheets, advanced insulation materials and computer-optimized electromagnetic design, the latest generation of YKS motors significantly reduces losses while improving power density. Rigorously tested against international benchmarks, they deliver reliable technical and economic performance.
Exported to more than 40 countries and regions across Europe, the Americas, Africa and Southeast Asia, the YKS series has built a strong reputation for stability in demanding industrial environments.
Key Technical Highlights
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Energy Saving Performance: Low-loss core materials and optimized winding layouts reduce heat generation and operating costs.
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Enclosure Protection Options: IP23, IP44, IP54, IP55 and IP56 configurations available, compliant with GB4942.1 and IEC34-5. Pipeline ventilation IP44 and climate protection IPW24 can be customized.
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Advanced Cooling Systems: Supports IC01, IC611 and IC81W air-to-water heat exchanger cooling according to GB/T1993 and IEC34-6, ensuring stable thermal performance under heavy load.
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Standardized Mounting: Frame designed as IMB3 horizontal foot-mounted structure in accordance with GB997 and IEC34-7 for easy installation and maintenance.
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Flexible Voltage Design: Engineered around common medium voltage systems and adaptable to 3kV, 6kV, 10kV, 10.5kV, 11kV and 13.8kV grids.
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Low Vibration & Quiet Running: Precision-balanced rotors and rigid welded steel frames keep vibration and noise low during continuous duty.
Ideal Applications
YKS motors are widely used as prime movers in mines, petrochemical plants, power stations and heavy manufacturing facilities, driving:
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Compressors and centrifugal blowers
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Industrial water pumps and boiler feed pumps
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Ventilation fans and exhaust systems
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Stock-removing and transportation machinery
Custom Engineering for High Inertia Loads
For machinery with large rotational inertia, such as crushers, coal mills, rolling mills, heavy belt conveyors and industrial blowers, our engineering team reviews your specific operating parameters and signs a custom technical agreement with you. This ensures safe, reliable and long-term motor performance in real working conditions.
Model & Performance Reference
|
Model
|
Rated Power (kW)
|
Voltage (kV)
|
Poles
|
Synchronous Speed (RPM at 50Hz)
|
Efficiency (%)
|
|
YKS 355-4
|
250 to 355
|
6.0 / 10.0
|
4
|
1500
|
94.5 to 95.0
|
|
YKS 355-6
|
200 to 315
|
6.0 / 10.0
|
6
|
1000
|
94.0 to 94.6
|
|
YKS 355-8
|
160 to 250
|
6.0 / 10.0
|
8
|
750
|
93.2 to 93.8
|
|
YKS 400-4
|
400 to 560
|
6.0 / 10.0
|
4
|
1500
|
95.2 to 95.7
|
|
YKS 400-6
|
355 to 500
|
6.0 / 10.0
|
6
|
1000
|
94.8 to 95.3
|
|
YKS 400-8
|
280 to 400
|
6.0 / 10.0
|
8
|
750
|
94.0 to 94.6
|
|
YKS 450-4
|
630 to 800
|
6.0 / 10.0
|
4
|
1500
|
95.6 to 96.0
|
|
YKS 450-6
|
500 to 710
|
6.0 / 10.0
|
6
|
1000
|
95.2 to 95.7
|
|
YKS 450-8
|
400 to 630
|
6.0 / 10.0
|
8
|
750
|
94.5 to 95.1
|
|
YKS 450-10
|
355 to 500
|
6.0 / 10.0
|
10
|
600
|
93.8 to 94.4
|
|
YKS 500-4
|
900 to 1250
|
6.0 / 10.0
|
4
|
1500
|
96.0 to 96.4
|
|
YKS 500-6
|
800 to 1120
|
6.0 / 10.0
|
6
|
1000
|
95.6 to 96.1
|
|
YKS 500-8
|
630 to 900
|
6.0 / 10.0
|
8
|
750
|
95.0 to 95.5
|
|
YKS 500-10
|
560 to 800
|
6.0 / 10.0
|
10
|
600
|
94.4 to 95.0
|
|
YKS 500-12
|
450 to 630
|
6.0 / 10.0
|
12
|
500
|
93.8 to 94.5
|
|
YKS 560-6
|
1250 to 1800
|
6.0 / 10.0
|
6
|
1000
|
96.0 to 96.5
|
|
YKS 560-8
|
1000 to 1400
|
6.0 / 10.0
|
8
|
750
|
95.4 to 95.9
|
|
YKS 560-10
|
800 to 1250
|
6.0 / 10.0
|
10
|
600
|
94.8 to 95.4
|
|
YKS 560-12
|
710 to 1000
|
6.0 / 10.0
|
12
|
500
|
94.2 to 94.8
|
|
YKS 630-6
|
2000 to 2800
|
6.0 / 10.0 / 13.8
|
6
|
1000
|
96.3 to 96.8
|
|
YKS 630-8
|
1600 to 2240
|
6.0 / 10.0 / 13.8
|
8
|
750
|
95.8 to 96.3
|
|
YKS 630-10
|
1250 to 1800
|
6.0 / 10.0 / 13.8
|
10
|
600
|
95.2 to 95.8
|
|
YKS 630-12
|
1000 to 1600
|
6.0 / 10.0 / 13.8
|
12
|
500
|
94.6 to 95.2
|
|
YKS 710-6
|
7000
|
13.8
|
6
|
1000
|
On request
|
Packaging & Shipping
Each motor is packed in standard seaworthy export packaging, with rust prevention, moisture protection and secure fixing for long distance ocean transport. Lifting points, packing drawings and loading instructions can be provided to support smooth unloading and installation on site.
Our overall product range covers power from 0.55kW to 20,000kW, voltage from 380V to 13.8kV, and shaft height from 80mm to 1120mm.
Our Advantages
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Wide power and voltage range to match different grid conditions
-
Excellent starting performance for heavy load applications
-
Suitable for a broad range of industries and global supply projects
-
High reliability that helps reduce downtime and operating costs
-
Flexible custom design based on your technical requirements
-
Factory Acceptance Test available online or on site
Quality Control
All measuring instruments are calibrated annually. Every production stage is inspected, including coil manufacturing, rotor assembly, frame welding, insulation treatment and final assembly. Each motor is tested before leaving the factory and can only be shipped after passing inspection. A test report is provided with every unit.
After Sales Service
Standard warranty is 12 months after commissioning or 18 months after delivery, whichever comes first. Extended warranty can be arranged on request. We also provide technical support for installation, commissioning, spare parts and maintenance guidance.
