RunDa rare-earth permanent magnet synchronous motors achieve remarkable energy-saving effect, ideal replacement for traditional asynchronous motors for industrial energy-saving transformation.
Product Overview
RunDa ultra-high efficiency permanent magnet synchronous motor adopts optimized electromagnetic design and rare-earth permanent magnet excitation structure.
Compared with conventional three-phase asynchronous motors, it features ultra-high efficiency, low loss, high power factor, wide efficient working range.
Support direct grid startup or variable frequency speed regulation. Widely applied in fans, water pumps, conveyors, metallurgical and mining equipment for energy-saving retrofit projects.
Product Introduction
1.Line-start Three-phase Rare-earth Permanent Magnet Synchronous Motors
Built-in asynchronous starting rotor structure, can be directly connected to the power grid without external drivers. Simple installation, directly replace ordinary asynchronous motor, perfect for fixed-speed equipment renovation.
Application：Industrial water pumps, constant-speed fans, general processing equipment
The rotor of the asynchronous-start three-phase permanent magnet synchronous motor is equipped with a starting winding and high-performance rare-earth permanent magnets. During startup, the starting winding generates torque to accelerate the motor; as the speed approaches synchronous speed, the permanent magnets pull the motor into synchronization, allowing it to enter normal synchronous operation. In this state, the motor’s excitation magnetic field is provided by the permanent magnets.
RUNDA ultra-high-efficiency, energy-saving asynchronous-start three-phase permanent magnet synchronous motors are a standardized product series developed using proprietary, patented technology. The low-voltage series is available in both “Basic” and “Enhanced” versions, while the medium- and high-voltage series are designed exclusively as the “Enhanced” version. Basic models feature the same mounting dimensions as standard three-phase induction motors of the same specifications, allowing for direct replacement. Enhanced models utilize a compact structural design, offering an expanded range of specifications, broader applicability, and superior performance.
RUNDA ultra-high-efficiency asynchronous-start three-phase permanent magnet synchronous motors are widely used across various industries; they deliver stable, reliable long-term performance and provide significant energy savings.
Product Series
1) TYYIA/B Low-voltage series (380V/50Hz, 460V/60Hz, 2.2kW–450kW);
2) TYY3A/B Medium-voltage series (660V/50Hz, 15kW–800kW);
3) TYYGB High-voltage series (6kV/50Hz, 200kW–2500kW);
4) TYYHB High-voltage series (10kV/50Hz, 200kW–2500kW);
5) TYYB1A/B Low-voltage flameproof series (380V/50Hz, 2.2kW–450kW);
6) TYYB3A/B Medium-voltage flameproof series (660V/50Hz, 15kW–800kW);
7) TYYB4A/B Medium-voltage flameproof series (1140V/50Hz, 15kW–1250kW).
Runda’s line-start three-phase rare-earth permanent magnet synchronous motors are suitable for a wide range of industrial loads—including fans, pumps, compressors, cranes, and textile machinery—and are widely used in sectors such as building materials, iron and steel, metallurgy, textiles, and chemicals. These motors offer long-term operational reliability and deliver significant energy savings.
| Performance Parameters | TYY1A/ B TYYB1A/ B | TYY3A/ B TYYB3A/ B | TYYB4A/ B | TYYGB / HB |
| Rated Voltage (V) | 380(460) | 690 | 1140 | 6000/10000 |
| Rated Frequency (Hz) | 50(60) | 50 | 50 | 50 |
| Power Range (kW) | 2.2-450 | 15-1000 | 15-1250 | 200-4500 |
| Shaft Center Height (mm) | 90-355 | 160-500 | 160-500 | 355-600 |
| Locked-rotor Torque Multiple | 1.6-3.2 | 0.8-2.5 | 0.8-2.5 | 0.8-1.6 |
| Pull-out Torque Multiple | 1.5-2.0 | 1.4-1.8 | 1.4-1.8 | 1.5-1.8 |
| Speed Rating (r/min) | 3000/1500/750/600/500/375 | |||
| Power Factor | 1 | |||
| Insulation Class | F | |||
| Protection Class | IP55 | |||
| Duty Type | S1 | |||
| Cooling Method | IC411 | |||
| Mounting Method | B3/B5/B35 | |||
| Operating Conditions | Ambient temperature -45°C to +65°C, relative humidity <90%, altitude <1500m | |||
2.Variable-frequency Speed Regulation Three-phase Rare-earth Permanent Magnet Synchronous Motors
Match dedicated PMSM variable frequency drive. Wide speed regulation range, maintain high efficiency under variable load conditions. Excellent dynamic response, stable operation.
Application：Variable frequency fans, compressors, adjustable speed conveyor equipment
Runda variable-frequency permanent magnet synchronous motors are high-performance products developed using proprietary electromagnetic design technology and variable-frequency speed control techniques. The motor design fully addresses practical performance requirements by integrating VFD control characteristics; through optimized magnetic circuit and parameter design combined with unique control methods, the motor achieves high torque multiplication and a unity power factor within the constant-torque speed range, as well as a high power factor and excellent operating characteristics within the constant-power speed range. These motors are compact and lightweight, balancing material utilization with optimal performance to achieve energy and material savings of 12% to 50%. They support both open-loop control and closed-loop control (via an optional position sensor), featuring four-quadrant operation, a wide speed range, rapid response, stability, and robust capability to handle sudden load changes. Manufacturing utilizes high-quality, maintenance-free bearings designed for VFD applications and vacuum-pressure impregnation (VPI) processes, ensuring long-term, reliable operation in harsh environments.
The Runda variable-frequency permanent magnet synchronous motor lineup comprises four series—TYVFA, TYVFB/C, TYVFG/H, and TYVFDD—offering a comprehensive range of specifications with structural designs and mounting dimensions that comply with relevant national standards. The TYVFA, TYVFB, and TYVFG series are general-purpose three-phase motors compatible with both Runda-specific and standard variable-frequency drives. The TYVFDD series consists of direct-drive, low-speed, high-torque permanent magnet synchronous motors; these break through traditional low-speed motor design limitations to achieve significantly reduced size and weight alongside greatly improved efficiency. They offer exceptional low-speed performance and high-torque drive capabilities, allowing for direct coupling to various low-speed loads or integration directly into the load structure, making them suitable for diverse applications across the national economy and defense sectors. Runda variable-frequency permanent magnet motors elevate motor and drive system performance to a new level, representing the optimal choice and inevitable trend in the evolution of motor-driven equipment.
Product Series
1) TYVFIA General-purpose low-voltage series (380V/50Hz, 460V/60Hz, 2.2kW–450kW);
2) TYVF3A General-purpose medium-voltage series (660V/50Hz, 15kW–800kW);
3) TYVF4A General-purpose medium-voltage series (1140V/50Hz, 15kW–1250kW);
4) TYVFGA General-purpose high-voltage series (6kV/50Hz, 400kW–5000kW);
5) TYVFHA General-purpose high-voltage series (10kV/50Hz, 400kW–5000kW);
6) TYVFBIA General-purpose low-voltage flameproof series (380V/50Hz, 460V/60Hz, 2.2kW–450kW);
7) TYVFB3A General-purpose medium-voltage flameproof series (660V/50Hz, 15kW–800kW);
8) TYVFB4A General-purpose medium-voltage flameproof series (1140V/50Hz, 15kW–1250kW);
9) TYVF / BxD Direct-drive low-speed high-torque series.
| Performance Parameters | TYVF1A TYVFB1A | TYVF3A TYVFB3A | TYVF4A TYVFB4A | TYVFGA/HA | TYVF/B*D |
| Rated Voltage (V) | 380 (460) | 690 | 1140 | 6000/10000 | 380/460/1140/3300 |
| Rated Frequency (Hz) | 50 (60) | 50 | 50 | 50 | 50 |
| Power Range (kW) | 2.2-450 | 15-800 | 15-1250 | 400-5000 | 15-4500 |
| Shaft Center Height (mm) | 90-355 | 132-450 | 132-450 | 315-600 | 132-630 |
| Starting Torque Multiple | ≥2.0 | ≥2.5 | |||
| Overload Multiple | ≥2.0 | ≥3.0 | |||
| Cooling Method | IC416 | IC416, IC4W21 | |||
| Number of Poles | 4/6/8/10/12/16 | ||||
| Speed Regulation Range | 0-50 Hz: Constant torque regulation; ≥50 Hz: Constant power regulation | ||||
| Power Factor | ≥0.96 | ||||
| Insulation Class | H | ||||
| Mounting Method | B3/B5/B35 | ||||
| Protection Class | Motor: IP55; Axial fan: IP55 | ||||
| Operating Conditions | Ambient temperature: -45°C to +65°C; Relative humidity: <90%; Altitude: <1500 m | ||||
3.High-precision Permanent Magnet Synchronous Motors
Precision magnetic circuit design, low torque ripple, stable low-speed operation, high control accuracy, low vibration & noise.
Application：Precision machining, automation production equipment
Runda high-precision permanent magnet synchronous motors are high-quality products specifically designed and manufactured for specialized applications. These motors feature comprehensive optimization in electromagnetics, structural design, and material selection, and are manufactured using precision processes to achieve peak performance. They are suitable for sectors such as the military, transportation, and precision manufacturing. Key product features include:
Compact, lightweight, and highly efficient: Through comprehensive optimization of magnetic circuit structures and winding configurations, energy losses are reduced to just 1/4–1/5 of those found in standard asynchronous motors of the same rating. Average efficiency is improved by 12–30%, while volume and weight are only 40–70% of those of three-phase asynchronous motors;
Low vibration and noise: Minimal energy loss and a specially designed fan result in very low noise levels—or even fan-free operation—ensuring quiet performance. Vibration displacement and velocity are kept to the micron level, and vibration acceleration is significantly reduced;
Strong starting capability: The motors support direct-on-line or reduced-voltage starting and possess excellent pull-in-to-synchronism capabilities;
Excellent speed regulation: Compatible with variable frequency drives (VFDs), these motors support four-quadrant operation, offering a wide speed range, rapid response, and smooth, steady performance. Stall torque and overload torque multipliers are configurable;
High stability: Capable of withstanding sudden load application and rejection, ensuring stable operation;
Superior electromagnetic compatibility (EMC): Designed for standard sinusoidal waveforms, the motors exhibit excellent electromagnetic compatibility;
High reliability and maintenance-free: Capable of reliable long-term operation in harsh environments. Their simple structure eliminates vulnerable components such as slip rings, brushes, and rotor windings, requiring no maintenance;
High adaptability: A comprehensive range of specifications is available, with structural designs and mounting dimensions compliant with relevant national (and military) standards, meeting the requirements of diverse load types.
Product Series
1) TYY1S Asynchronous-start low-voltage series (380V/50Hz, 2.2kW–220kW).
2) TYVFOS Variable-frequency speed-regulation low-voltage series (220V, 0–3000 r/min, 2.2kW–220kW);
3) TYVF1S Variable-frequency speed-regulation low-voltage series (380V, 0–3000 r/min, 2.2kW–160kW).
| Performance Parameters | TYYIS | TYVF0S | TYVF1S |
| Rated Voltage (V) | 380 | 220 | 380 |
| Rated Frequency (Hz) | 50 | 50 | 50 |
| Power Range (kW) | 2.2-220 | 2.2-220 | 2.2-160 |
| Speed Range (r/min) | 600-3000 | ||
| Airborne Noise (dB) | 40-55 | ||
| Vibration Displacement (μm) | 2-5 | ||
| Vibration Velocity (μm/s) | 50-100 | ||
| Vibration Acceleration (m/s²) | 0.1–0.15 | ||
| Duty Type | S1 | ||
| Cooling Method | IC411, IC4W21 | ||
| Shaft Center Height (mm) | 100–315 | ||
| Protection Class | IP55 | ||
| Operating Conditions | Ambient temperature -45°C to +65°C; relative humidity <95%; altitude ≤1800m. | ||
4.Low-speed High-torque Direct-drive Rare-earth Synchronous Motors
Low speed & large output torque, cancel the reducer structure. Eliminate intermediate transmission loss, reduce failure rate and maintenance cost.
Application：Mining conveyors, heavy-duty rotating machinery, large stirring equipment
Traditional low-speed industrial drive systems rely on a combination of an electric motor and a gear reduction mechanism; however, the complexity of such gearboxes creates significant inconveniences for efficient production. Leveraging the characteristics of modern permanent magnet motors, eliminating the reduction mechanism—and adopting a direct-drive configuration—has become the prevailing trend for this type of industrial equipment.
Low-speed, high-torque direct-drive permanent magnet motors meet system performance requirements while simultaneously reducing the overall size and weight of the equipment and significantly boosting system efficiency. Offering advantages unmatched by traditional low-speed drive systems, they represent the inevitable future direction for low-speed, high-torque drive technology.
These motors are widely applicable across industries such as steel, petroleum, and chemicals. Their adoption substantially enhances the technological sophistication of industrial equipment, reduces energy consumption, and improves resource utilization efficiency, delivering significant social and economic benefits.
The use of low-speed, high-torque direct-drive permanent magnet motors offers the following advantages:
It transforms the mechanical drive mode by simplifying the drive chain and eliminating intermediate transmission stages; it simplifies the manufacturing process by reducing the complexity associated with designing and producing transmission components; it enhances drive efficiency through optimized motor parameters that maximize performance; and it lowers maintenance costs by reducing the number of potential failure points and increasing overall system reliability.
Product Series
1) TYVF/B1D Low-voltage/Explosion-proof Series (380V, 0–200 r/min, 2.2 kW–450 kW);
2) TYVF/B3D Medium-voltage/Explosion-proof Series (690V, 0–200 r/min, 15 kW–1200 kW);
3) TYVF/B4D Medium-voltage/Explosion-proof Series (1140V, 0–200 r/min, 15 kW–1200 kW);
4) TYVF5D High-voltage Series (2 kV, 0–200 r/min, 200 kW–2500 kW);
5) TYVF6D High-voltage Series (3 kV, 0–200 r/min, 500 kW–4500 kW);
6) TYVFGD High-voltage Series (6 kV, 0–200 r/min, 200 kW–2500 kW);
7) TYVFHD High-voltage Series (10 kV, 0–200 r/min, 500 kW–4500 kW);
| Performance Parameters | TYVF / BID | TYVF /B3D | TYVF /B4D | TYVF5D | TYVF6D | TYVFGD | TYVFHD |
| Rated Voltage (V) | 380 | 690 | 1400 | 2 | 3 | 6 | 10 |
| Rated Frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Power Range (kW) | 2.2~450 | 15~1200 | 15~1200 | 200~2500 | 500~4500 | 200~2500 | 500~4500 |
| Speed Range (r/min) | 0~200 | ||||||
| Operating Mode | S1 | ||||||
| Maximum Torque Multiple | 1.5~1.8 | ||||||
| Cooling Method | IC411, IC4W21 | ||||||
| Insulation Class | H Grade | ||||||
| Usage Conditions | Ambient temperature -45℃ to +65℃, relative humidity <90%, altitude <1500m. | ||||||
Core Technical Advantages
Key Advantages
1. Outstanding Energy Saving Performance
Efficiency far exceeds IE5 ultra-high energy efficiency standard. Save 15%~40% power consumption compared with traditional asynchronous motors. Short investment recovery period.
2. High Power Factor & Low Line Loss
High power factor close to 0.95 in full working range, reduce reactive power loss of power grid, lower transformer and cable load.
3. Wide High-efficiency Operating Zone
Maintain high efficiency even under partial load. Greatly suitable for equipment running under variable load conditions.
4. Multiple Startup & Control Modes
Options: direct line start / variable frequency driving. Provide complete motor + supporting VFD integrated solutions.
5. Compact Structure & High Reliability
Smaller frame size, light weight. Anti-demagnetization structural design, stable long-term continuous operation, low maintenance workload.
6. Easy Replacement & Installation
Mounting dimensions comply with international standard. Direct replacement of old asynchronous motors, no need to modify equipment base.
Typical Application Industries
Application Scenarios
– Factory energy-saving renovation project
– Metallurgical & mining equipment
– Water pump & ventilation fan system
– Chemical processing equipment
– Heavy-duty conveyor and mixing machinery
Customization Service
Customizable Options
✅ Rated Power：Custom power range on demand
✅ Voltage：380V/415V/660V etc.
✅ Protection Grade：IP54 / IP55 / IP56
✅ Installation form：B3, B5, B35 and other mounting standards
✅ Special improvement: low temperature, dust-proof, anti-corrosion structure
✅ Supporting matching dedicated RUNDA frequency converter
Get Technical Parameters & Official Quotation
Please tell us your working condition, required power, voltage and speed requirement. Our engineer will provide professional solution and competitive price quickly.
