YVF2 series variable-frequency adjustable-speed three-phase asynchronous motors are powered by frequency converters. The motor speed can be smoothly regulated by adjusting the power supply frequency to achieve energy saving and automatic control.
YVF2 series motors feature high efficiency, wide speed regulation range, high precision and stable operation, and are easy to operate and maintain. Their mounting dimensions comply with IEC (International Electrotechnical Commission) standards.
- Enclosure protection class: IP55
- Equipped with independent external cooling fan
- Rating based on Continuous Duty (S1)
- Rated voltage: 380V
- Insulation class: F
- Rated frequency: 50Hz
The motor delivers constant-torque operation within the frequency range of 3Hz-50Hz.
Constant-power operation range:
- 2-pole motors: 50Hz-60Hz
- 4-pole and 6-pole motors (excluding model 355-4): 50Hz-100Hz
- Model 355-4 motor: 50Hz-75Hz
YVF2 series motors are suitable for driving various mechanical equipment requiring continuous operation and frequent forward/reverse rotation, such as steel rolling equipment, cranes, conveyors, machine tools, printing & dyeing machinery, papermaking equipment, chemical machinery, textile machinery and pharmaceutical equipment. They can be matched with all types of domestic and imported frequency converters.
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Suitable for general locations and machinery without special requirements, such as metal-cutting machine tools, pumps, fans, conveying machinery, mixers, agricultural machinery, food processing machinery, etc.
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Motors of this series comply with Grade 2 energy efficiency specified in GB 18613-2020 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors. Compared with corresponding models of YE3 series, the efficiency is improved by 2%~3% on average; compared with corresponding models of conventional YX3 series, the efficiency rises by approximately 6%. In addition, it features a flat efficiency curve within the load range of 50%~100%.
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Mounting dimensions and power ratings fully conform to IEC standards and DIN 42673; cooling method: IC411.
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Protection grade IP55. The cast iron frame delivers dust-proof and splash-proof performance. Optimized structure complies with international standards to guarantee safe operation.
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Adopts Class F insulation with superior heat resistance and dielectric impulse withstand capability, offering long insulation service life and stable performance even under harsh operating conditions.
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Equipped with well-known brand bearings, silicon steel sheets and enamelled round copper wire to ensure reliable performance.
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Standardized design, premium raw materials, advanced processing equipment and comprehensive quality assurance system endow the motor with remarkable energy-saving effect, low vibration, low noise, stable performance and high operational safety & reliability.
• Each motor is wrapped with plastic film for dust and moisture protection.
• Front & rear foam cushions provide shock absorption to prevent impact damage.
• Reinforced printed export corrugated carton serves as outer packaging.
• Custom packaging options are available.
Transportation
• Sea Transport: 20ft / 40ft shipping containers for international delivery.
• Road Transport: Palletized cargo delivered by trucks for domestic & overland transport.
• Rail Transport: Motors packed in cartons, stably secured on pallets for railway shipment.
Handling Precautions
• Prevent moisture ingress to avoid rust and insulation deterioration.
• Secure all cartons and pallets to avoid displacement during transport.
• Avoid prolonged exposure to extreme temperatures.
• Adopt proper handling machinery; never hoist the motor by the shaft or terminal box.
• Observe carton stacking restrictions to avoid compression damage.
1. Who Are We?
We are located in Hebei, China, established in 2016.
Our global sales distribution: Domestic Market (20%), Southeast Asia (15%), Africa (15%), Middle East (15%), Northern Europe (10%), Eastern Europe (5%), South America (5%), Oceania (5%), South Asia (5%), North America (3%), Western Europe (2%).
Our team consists of 101-200 experienced staff, including professional R&D engineers, quality inspectors, international sales and after-sales technicians.
2. How Can We Guarantee Quality?
We strictly implement standardized quality control throughout the whole production cycle.
- Pre-production confirmation: We provide formal pre-production samples for client approval before mass manufacturing.
- Raw material inspection: All silicon steel sheets, enamelled copper wire and bearings are inspected upon incoming delivery.
- Routine finished-motor testing: Every motor undergoes no-load test, insulation resistance test, winding resistance check, rotation verification and visual inspection.
- Final comprehensive inspection will be carried out for all goods before shipment.
Third-party inspection (SGS/BV etc.) is acceptable upon your request.
3. What Can You Buy from Us?
Our core product portfolio covers three-phase induction motors (YE2/YE3/YE4/YE5 high-efficiency series), water pumps, gear reducers/gearboxes and all matching spare parts.
We can support standard models as well as customized specifications for special working conditions.
4. Why Should You Buy from Us Instead of Other Suppliers?
Strong independent R&D and technical capabilities, with mature electromagnetic design solutions for high-efficiency motors.
Equipped with advanced automated production lines and complete professional testing laboratories.
Strict modernized management system, full traceability of production and quality records.
We hold CE & ISO9001 certifications, fully complying with IEC international standards.
Adopt full copper winding, well-known brand bearings and premium raw materials for stable performance.
We deliver professional, dedicated one-stop technical & commercial service for global industrial buyers.
5. What Services Can We Provide?
Delivery Terms
FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DDP, DDU, Express Delivery
Accepted Payment Currencies
Accepted Payment Methods
T/T, Irrevocable L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow
Payment Guarantee
Platform Logistics
Inspection Service
After-Sales & Dispute Handling
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