Brawny Machine is a high-tech manufacturer specializing in the production of three-phase asynchronous motors, equipped with independent research and development capabilities.
Continuous innovation and learning are the core competitiveness of our products. Brawny Machine is also actively seeking overseas distributors and welcomes your participation.
Product Introduction
The YVF2 Series Variable-Frequency Speed Control Specialized Three-Phase Asynchronous Motor is an advanced drive product designed and manufactured in strict compliance with the machinery industry standard JB/T 7118. This series of motors is specifically engineered for inverter-driven applications, effectively addressing common issues such as overheating, vibration, and insulation failure encountered by standard motors during variable-frequency speed regulation. It delivers smooth, efficient, and stable operation across a wide frequency range, making it an ideal power core for modern industrial automation, energy-saving retrofits, and precision speed control drive systems.
Designed Specifically for Variable Frequency Operation: The electromagnetic design is specially optimized to maintain excellent performance under variable frequency power supply, effectively suppressing high-order harmonic influences while reducing temperature rise and noise.
Wide-Range Constant Torque/Constant Power Operation:
- 5–50 Hz: Enables constant torque speed regulation, ensuring sufficient load-driving capability in the low-speed range to meet demands for startup and heavy-duty low-speed operation.
- 50–100 Hz: Provides constant power speed regulation, extending the mechanical high-speed operating range and enhancing production efficiency.
High-Reliability Insulation System: Utilizes Class F (155°C) insulation materials, treated with specialized Vacuum Pressure Impregnation (VPI) technology. The robust insulation structure offers strong resistance to corona and voltage surges, effectively withstanding peak voltages generated by inverters, resulting in a lifespan far exceeding that of standard motors.
Efficient Cooling Structure: Adopts the IC416 (Totally Enclosed Fan-Cooled with Independent Fan) cooling method. An independently driven forced cooling fan ensures adequate airflow even during low-speed operation (when the motor’s own cooling fan speed decreases), guaranteeing effective cooling across the entire speed range and preventing overheating.
Robust Protection Capability: With a high protection rating of IP54, the motor effectively prevents dust ingress and water splashes from all directions, making it suitable for harsh industrial environments such as those with dust or humidity.
Excellent Mechanical Performance: The rotor is dynamically balanced, and the bearing housing and bearings are specially designed, significantly reducing vibration and noise while enhancing mechanical stability across a wide frequency range.
Standards Compliance: JB/T 7118
Power/Frame Size Range: Covers center heights from H90 to H355 with a wide power range, meeting diverse power requirements.
Rated Power Supply: Rated voltage 380V, rated frequency 50Hz, compatible with domestic standard industrial grids.
Speed Control Characteristics:
- Constant torque frequency range: 5–50 Hz
- Constant power frequency range: 50–100 Hz
Insulation & Protection: Insulation class F, protection class IP54.
Cooling Method: IC416 (totally enclosed forced air cooling).
Operating Environment: - Altitude: ≤ 1000 meters
- Ambient temperature: -15°C to +40°C
- Relative humidity: ≤ 90% (non-condensing)
Typical Application Fields
The YVF2 series motors are widely used in applications requiring precise speed control and energy-efficient operation, such as:
Textile Machinery: Spinning, twisting, and winding equipment.
Material Handling: Conveyor belts, elevators, and packaging lines with stepless speed regulation.
Fans and Pumps: Frequency-based adjustment of flow and pressure, achieving significant energy savings (replacing traditional dampers and valve regulation).
Machine Tool Equipment: Spindle drives and feed systems.
Paper, Plastic, and Rubber Machinery: Extruders, calenders, and traction devices.
Mining and Metallurgical Equipment: Roller tables and cranes.
We offer a variety of models in the YVF2 Series Variable-Frequency Speed Control Specialized Three-Phase Asynchronous Motors for your selection.
