CRRC Flameproof Permanent Magnet Synchronous Variable Frequency Drive Motor
CRRC flameproof permanent magnet synchronous variable frequency drive motor is a high-power drive solution tailored for harsh industrial scenarios, covering a 200~1600 kW power range and compatible with voltage levels up to 10 kV. It is engineered as an explosion-proof, three-phase permanent magnet synchronous variable frequency motor, designed to drive general machinery such as belt conveyors, ball mills, and cutting machines.
Equipped with a robust flameproof structure, this motor delivers stable performance in flammable and explosive environments (e.g., mines, chemical plants), while its permanent magnet design ensures high efficiency and low energy consumption under continuous heavy-load operations.
As a core product in CRRC’s direct/semi-direct drive lineup, it integrates seamlessly with mainstream industrial equipment, and has been applied in strategic projects (e.g., 500 kW systems with Xinjiang Coking Coal Group), ensuring reliable compatibility with industry-standard machinery.
We offer comprehensive life-cycle support for this motor, including customized configuration, on-site installation, maintenance training, and spare parts supply, backed by mature quality control systems.
Advantages of CRRC Flameproof Permanent Magnet Synchronous Variable Frequency Drive Motor
This motor covers a 200-1600 kW power range and voltage levels up to 10 kV, enabling broad power & voltage adaptability that supports belt conveyors, ball mills, and cutting machines across mines, chemicals, and power plants.
Its flameproof structure ensures explosion-proof & harsh environment compatibility, meeting safety standards for flammable/explosive scenarios while maintaining stable operation under dust, humidity, and high-load industrial conditions.
The permanent magnet synchronous design delivers high efficiency & low energy consumption, cutting long-term operational power costs for equipment running under continuous heavy loads.
It boasts proven large-scale project reliability, having been deployed in strategic collaborations (e.g., 500 kW systems with Xinjiang Coking Coal Group) to ensure compatibility with mainstream industrial machinery.
It comes with comprehensive life-cycle support, including customized configuration, on-site installation, and spare parts supply, all tailored to the long-term operation needs of heavy industrial equipment.
Technical Specifications
General Specifications of CRRC Flameproof Permanent Magnet Synchronous Variable Frequency Drive Motor
Rated Power: 200 – 1600 kW
Explosion-proof rating: Ex d I Mb
Protection class: IP55~IP65
Energy efficiency class: IE4~IE5
Starting torque: 200%
Cooling method: Self-ventilated / Forced air cooling
Application scenarios: Belt conveyors, mills, flotation machines, mixers, and other mechanical equipment in mining, building materials, machinery, chemical, and power plant industries
Motor Model | Power Range | Applicable scenarios |
| EC Series Motor Controllers | 15 – 75 kW | Motor control for mining locomotives, wheeled vehicles, logistics vehicles, and new energy vehicles |
| Explosion-proof Permanent Magnet Motor for Rubber-Tired Vehicles | 200 – 1600 kW | Driving various general-purpose machinery, such as belt conveyors, ball mills, and cutting machines |
| Flameproof Permanent Magnet Synchronous Variable Frequency Drive Motor | 200 – 1600 kW | Driving various general-purpose machinery, such as belt conveyors, ball mills, and cutting machines |
| TBVF Series Explosion-Proof Disc Permanent Magnet Motor | 5.5 – 55kW | Flammable and explosive gas environments such as coal mines, chemical plants, natural gas plants, and metallurgical plants. |
| Semi-Direct Drive Permanent Magnet Motor | 200 – 1600 kW | Driving various general-purpose machinery, such as belt conveyors, ball mills, and cutting machines |
| ——END—— | ||
TBVF series explosion-proof three-phase permanent magnet synchronous variable frequency motors for mining, with models ranging from 200 to 1600kW.
Can be used to drive various general-purpose machinery, such as belt conveyors, ball mills, cutting machines, and other mechanical equipment.
Used as prime movers in various working conditions in mines, building materials, machinery industries, chemical industries, power plants, and other enterprises.
TBVF Low-Speed High-Torque Series | |||||
| Voltage Level | 380V | 660V (690V) | 1140V | 3300V | 6 KV / 10kV |
| Rated Speed | 46rpm, 60rpm, 75rpm, 90rpm | 46rpm, 60rpm, 75rpm, 90rpm | 46rpm, 60rpm, 75rpm, 90rpm | 46rpm, 60rpm, 75rpm, 90rpm | 46rpm, 60rpm, 75rpm, 90rpm |
| Power Range | 30 – 355kW | 30 – 1400kW | 30 – 1600kW | 220 – 3215kW | 200 – 3215kW |
| ——END—— | |||||
TBVF Normal-Speed Series | ||||
| Voltage Level | 380V | 660V (690V) | 1140V | 3300V |
| Rated Speed | 1000rpm, 1500rpm | 1000rpm, 1500rpm | 1000rpm, 1500rpm | 1000rpm, 1500rpm |
| Power Range | 132 – 355kW | 132 – 355kW | 132 – 800kW | 900 – 1250kW |
| ——END—— | ||||
EC series motor controller
Power range: 15 – 75 kW.
Features: High conversion efficiency, high reliability, and scientifically selected components.
Applicable scenarios: Motor control for mining locomotives, rubber-tired vehicles, logistics vehicles, and new energy vehicles.
Advantage Item | Detailed Description |
| Exclusive MA Certification | The only manufacturer in China to obtain the Mine Product Safety Mark (MA) Certification for disc motor drive systems, ensuring full compliance with national mining safety regulations. |
| System-level Matching | Co-designed motor and controller with deeply optimized control algorithms, delivering synergistic efficiency and reliability beyond individual components. |
| Full Working Condition Adaptability | Full power coverage from 5.5kW to 75kW, meeting the needs of multiple industries including mining, chemical, new energy, and more. |
| Low Maintenance Cost | Brushless motor + high-reliability controller, eliminating brush maintenance and reducing operational costs by over 30%. |
Permanent Magnetization to Electric Drive Products
1. Permanent Magnet Direct Drive System for Flotation Machines and Agitators
This system features vertical installation, direct connection between the output shaft and the main agitator shaft, frequency conversion start, and stepless speed control. It boasts significant advantages such as simple structure, strong load capacity, high efficiency, low failure rate, and low operating and maintenance costs, meeting the various energy-saving retrofit needs of customers in mining, pharmaceutical, and chemical industries.- The equipment structure has been greatly simplified.
- Motor volume has been reduced by nearly 40%.
- Cooling methods are flexible and easy to use.
- Motor and equipment installation and maintenance are convenient.
- Higher efficiency, motor maintenance is close to “0”.
- The problem of air passage in the shaft has been solved.
Permanent magnet direct drive motor for flotation machines Permanent magnet direct drive motor for mixersParameter | Specification |
| Rated Power (kW) | 11kW – 630kW |
| Rated Voltage (V) | 380 / 6000 / 10000 |
| Rated Speed (r/min) | 33 – 300 |
| Insulation Class | Class H, Class F |
| Protection Class | IP55 |
| Noise (dB) | 70 |
2. Lithium-ion Battery Reactor Permanent Magnet Synchronous Drive System
Reactors are widely used in chemical, environmental protection, pharmaceutical, food, petroleum, dye, and biochemical industrial production. Especially in chemical processes, various chemical changes require thorough mixing of reactants. For physical changes such as heating, mixing, cooling, and gas absorption, stirring devices are necessary to achieve good results.Parameter | Original Asynchronous Motor | Permanent Magnet Direct Drive Motor |
| Rated Voltage | 380V | 380V |
| Power | 55kW | 55kW |
| Speed | 1485 r/min | 220 r/min |
| Torque | 350N·m | 2387N·m |
| Power Factor | 0.85 | 0.96 |
| Efficiency | 92% | 96.3% |
| Rated Current | 106A | 93.5A |
| Gearbox | Required | Not Required |
3. Ball Mill Permanent Magnet Synchronous Drive System
Ball mills are widely used raw material fine grinding equipment in the building materials industry and are major power-consuming equipment in the industry. Energy-saving modification of ball mills to improve their working efficiency is a key aspect of energy conservation and consumption reduction in the building materials industry. By replacing the original AC asynchronous motor + hydraulic coupler + gearbox + belt reducer structure with a permanent magnet direct drive control system, and using frequency conversion technology for speed control, the working time of the ball mill can be shortened by 15%, thereby achieving a comprehensive energy saving rate of over 25%.
Parameter Table of Original Drive System of a Cement Plant
Motor Model | Rated Power (kW) | Rated Voltage (V) | Rated Speed (rpm) | Rated Current (A) | Rated Power Factor | Rated Efficiency |
| MAA800LE | 4000 | 6000 | 595 | 490 | 0.81 | 0.969 |
Reducer Model | Input Speed (rpm) | Reducer Ratio | Output Speed (rpm) | Actual Power (kW) | Actual Load Rate | Annual Operating Time (h) |
| 1900A | 595 | 37.47 | 15.88 | 3200 | 80% | 7000 |
Post-modification permanent magnet direct drive system parameter table
Reducer Model | Input Speed (rpm) | Reducer Ratio | Output Speed (rpm) | Actual Power (kW) | Actual Load Rate | Annual Operating Time (h) |
| 1900A | 595 | 37.47 | 15.88 | 3200 | 80% | 7000 |
4. Permanent Magnet Synchronous Drive System for Sand Mills
Sand mills are mainly used for grinding, refining, and dispersing industrial raw materials, and can be widely applied in the food, pharmaceutical, battery material, and powder metallurgy industries. The product features high efficiency and energy saving, high starting torque, and a wide speed range, meeting the needs of sand mills under various operating conditions.Permanent magnet direct drive motor system for sand mill
Rated Power (kW) | Rated Voltage (V) | Rated Speed (r/min) | Insulation Class | Protection Class | Noise (dB) |
| 355 | 380 | 390 | Class H | IP55 | 85 (Sound Pressure Level) |
| 700 | 690 | 330 | Class H | IP55 |
1. Application Case of Permanent Magnet Direct Drive System for Mineral Processing Flotation Machines
Before Modification: Complex Flotation Machine Structure
2. Application Case of Permanent Magnet Direct Drive System for Sand Mills
Traditional Sand Mill Structure (Motor + Reducer)
Sand Mill Direct Drive Structure
The 700kW permanent magnet direct drive motor simplifies the sand mill equipment structure, resulting in high system reliability and significantly improved efficiency, with an overall energy saving rate of 15%.3. Application Case of Permanent Magnet Direct Drive System for Belt Conveyor Equipment
3.1 Energy Saving Retrofit Project of Bayan Obo Belt Conveyor
Comprehensive measured energy saving of 30%
3.2 Changlai Sand and Gravel Project Becomes an Industry Energy-Saving Benchmark Project
Measured energy saving of 23% under high power conditions
Provides a full range of air-cooled permanent magnet direct drive solutions from 160kW to 1400kW and 380V to 10kV
3.3 425kW Internal Permanent Magnet Direct Drive Hoist
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
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