Introduction
In the modern industrial production landscape, the stability and efficiency of power equipment directly determine the continuity of production lines and the control of operational costs. For manufacturing plants, mining sites, and chemical processing facilities, the demand for high-reliability, energy-saving electric motors has become increasingly urgent—especially for those operating 24/7 under harsh conditions. The industrial electric motor M350-45kW, together with its matching models M350-37kW and M350-55kW, is specifically designed to address the core pain points of industrial users, including high energy consumption, frequent failures, poor adaptability to harsh environments, and high maintenance costs. This product is tailored for production managers, equipment maintenance engineers, and procurement personnel in industries such as metallurgy, chemical engineering, water treatment, and mining, providing a one-stop power solution that balances efficiency, durability, and cost-effectiveness.
Structural Features
The M350 series motor adopts a modular structural design, which is convenient for disassembly, maintenance, and part replacement. The shell is made of high-strength cast iron (HT250) with anti-corrosion treatment on the surface, which can resist the erosion of humid, dusty, and corrosive environments, and the service life of the shell can reach more than 15 years. The stator winding is made of F-class insulation material, which has good high-temperature resistance and insulation performance, ensuring that the motor can work stably in high-temperature environments (ambient temperature up to 40℃). The rotor is made of copper bars and cast aluminum, which has high mechanical strength and good heat dissipation performance, effectively avoiding rotor burnout caused by long-term high-speed operation. In addition, the motor’s junction box is designed with a waterproof and dustproof structure (IP55 protection level), which can prevent water and dust from entering the interior, ensuring the safety and stability of the electrical components.
Applicable Working Conditions
The M350 series industrial electric motor is widely applicable to various harsh industrial working conditions, including but not limited to:
- Metallurgical industry: Used as the power source for blast furnace fans, conveyor belts, and rolling mill equipment, adapting to high-temperature, dusty, and vibrating working environments (ambient temperature 30-40℃, dust concentration ≤10mg/m³).
- Chemical industry: Suitable for powering chemical pumps, mixers, and reaction kettles, with explosion-proof performance that can adapt to working environments containing flammable and explosive gases (such as natural gas, methanol vapor).
- Water treatment industry: Used in water supply pumps, sewage treatment aerators, and sludge conveyors, adapting to humid and corrosive working environments (relative humidity ≤95%, no condensation).
- Mining industry: Used for mine hoists, ventilation fans, and ore conveyors, with strong overload capacity and vibration resistance, adapting to low-temperature (-10℃ to 35℃) and high-dust working environments.
The motor can work normally under the condition of altitude ≤1000m, and can be customized according to user needs for high-altitude (above 1000m) and extremely low-temperature (-20℃) working conditions.
Maintenance and Care Suggestions
1. Daily Maintenance (Once a Day)
Check the motor’s operating temperature (should not exceed 85℃), noise, and vibration. Clean the surface dust and debris of the motor to ensure unobstructed heat dissipation. Check the tightness of the connecting bolts of the motor and the equipment, and tighten them in time if they are loose.
2. Regular Maintenance (Once a Month)
Check the lubrication of the bearings and add lithium-based grease (model: 2# lithium grease) if necessary. The grease filling amount should be 1/2-2/3 of the bearing cavity. Check the insulation resistance of the motor (should be ≥1MΩ) with a megohmmeter to prevent insulation aging. Check the wiring of the junction box to ensure no loose or virtual connection.
3. Annual Maintenance (Once a Year)
Disassemble the motor to check the wear of the bearings and replace them if necessary (the service life of the bearings is about 8000 hours). Clean the stator and rotor windings to remove dust and oil stains. Check the insulation performance of the windings and perform insulation treatment if there is aging. Calibrate the temperature sensor and overload protection module to ensure their normal operation.
We supply the following spare parts:
| SIZE | PARTNUMBER | PARTNUMBER | URETHANEBONDED | RUBBERBONDED | ENDURANCEBONDED | REPLACEABLERUBBER | PARTNUMBER | |
| 5M | TS-0260-50HP | G-265* | LLU-50-B15 | LL-50-B15 | HPW-50-B15 | I-50-B15 | TM-50-BR | |
| 5 1/2″ | TS-0 260-54 HP | G-263* | LLU-54-B15 | LL-54-B15 | HPW-54-B15 | I-54-B15 | TM-54-BR | |
| 5 3/4″ | TS-0260-56HP | – | LLU-56-B15 | LL-56-B15 | HPW-56-B15 | I-56-B15 | TM-56-BR | |
| 6 ■■ | TS-0 260-60 HP | G-261 * | LLU-60-B15 | LL-60-B15 | HPW-60-B15 | I-60-B15 | TM-60-BR | |
| 6 1/4″ | TS-0260-62HP | G-283* | LLU-62-L15 | LL-62-L15 | HPW-62-L15 | I-62-L15 | TM-62-LR | |
| 6 1/2″ | TS-0260-64HP | G-284 * | LLU-64-L15 | LL-64-L15 | HPW-64-L15 | I-64-L15 | TM-64-LR | |
| 6 3/4″ | TS-0260-66HP | G-287* | LLU-66-L15 | LL-66-L15 | HPW-66-L15 | I-66-L15 | TM-66-LR | |
| 7″ | TS-0260-70HP | G-285* | LLU-70-L15 | LL-70-L15 | HPW-70-L15 | I-70-L15 | TM-70-LR | |
| 7 1/4″ | TS-0260-72HP | LLU-72-L15 | LL-72-L15 | HPW-72-L15 | I-72-L15 | TM-72-LR | ||
| 7 1/2″ | TS-0260-74HP | LLU-74-L15 | LL-74-L15 | HPW-74-L15 | I-74-L15 | TM-74-LR | ||
| VALVES, SEATS, SPRINGS | GASKETS | |||||||
| 4 WEB DESIGN | 3 WEB DESIGN | FULL OPEN (1) | FULL OPEN(2) | PARTNUMBER | ||||
| VALVE | TS-U5B-23 | – | TS-0965M | TS-8-V1 | VALVE COVER GASKET | TS-1540163 | ||
| SEAT | TS-8-DDB7 | – | TS-1410M | TS-8-S7 | CYLINDER HEAD GASKET | – | ||
| SPRING | – | – | – | TS-1560702 | WEAR PLATE GASKET | TS-1295257 | ||
| INSERT(Urethane) | TS-8-W1 | – | TS-8-MI | TS-8-FI | EXTENSION ROD SEAL | – | ||
| INSERT(Rubber) | TS-8-WR | – | – | – | EXTENSION ROD BAFFLE | TS-129-2194 | ||
| PISTON ROD & EXTENSION ROD | ||||||||
| ROD CLAMP | PISTONRODSTUD | PISTONNUT | THREADED TYPE PISTON ROD | CLAMP TYPE PISTON ROD | SUB ROD | THREADED TYPE EXTENSION ROD | CLAMP TYPE EXTENSION ROD | |
| TS-1295085 | N/A | TM-NUT | N/A | TM-1295147 | TS-1295146 | N/A | TS-1295083 | |
| FLUID END MODULE | ||||||||
| SUCTION MODULE STUDDED | DISCHARGE MODULE STUDDED | MODULE SEAL SET | STUDS & NUTS SET | |||||
| TS-1295243 | TS-1295240 | TM14P-SEALKIT | TM14P-STUDSETDTM14P-STUDSETS | |||||
On-Site Fault Maintenance Cases
Case 1: Motor Overheating Shutdown
Application scenario: A chemical plant uses the M350-45kW motor to drive a chemical pump. The motor suddenly shuts down during operation, and the temperature alarm light is on. Maintenance steps: 1. Check the motor surface and find that the heat dissipation fan is blocked by dust and debris, resulting in poor heat dissipation. 2. Turn off the power supply, clean the dust and debris on the fan and heat dissipation fins. 3. Restart the motor, and the temperature returns to normal (65℃), and the operation is stable. Cause analysis: Long-term operation in a dusty environment leads to blockage of the heat dissipation system, which affects heat dissipation efficiency.
Case 2: Motor No-Load Operation but No Load Output
Application scenario: A mining site uses the M350-55kW motor to drive a conveyor belt. The motor runs normally without load, but there is no load output when connected to the conveyor belt. Maintenance steps: 1. Check the coupling between the motor and the conveyor belt and find that the coupling bolt is broken. 2. Replace the coupling bolt (model: M16×80 high-strength bolt) and tighten it according to the specified torque (45N·m). 3. Restart the motor, and the load output is normal. Cause analysis: The coupling bolt is fatigue-damaged due to long-term vibration, resulting in disconnection between the motor and the load.
Case 3: Motor Abnormal Noise and Vibration
Application scenario: A water treatment plant uses the M350-37kW motor to drive an aerator. The motor produces abnormal noise and obvious vibration during operation. Maintenance steps: 1. Check the bearings and find that the bearing grease is exhausted and there is slight wear. 2. Replace the bearing (model: 6318 deep groove ball bearing) and add appropriate grease. 3. Check the rotor balance and adjust the balance weight. 4. Restart the motor, the noise and vibration are eliminated, and the operation is stable. Cause analysis: Lack of lubrication leads to bearing wear, and rotor imbalance causes vibration and noise.
FAQ (Frequently Asked Questions)
| Questions | Answers |
| What is the difference between the M350-45kW and M350-55kW models, and how to choose the right one? | The main difference lies in the rated power: M350-45kW has a rated power of 45kW, suitable for equipment with medium load (such as medium-sized pumps and fans); M350-55kW has a rated power of 55kW, suitable for heavy-load equipment (such as large conveyors and compressors). |
| Can the M350 series motor be used in high-altitude areas above 1000m? | The standard model is suitable for altitude ≤1000m. For high-altitude areas above 1000m, we can customize the motor according to the actual altitude. The main improvements include strengthening the insulation performance, optimizing the heat dissipation structure, and adjusting the electromagnetic design to ensure that the motor can work stably under low air pressure and low oxygen conditions. |
| What should I do if the motor fails to start after installation? | First, check whether the power supply voltage is normal (380V±10%) and whether the wiring is correct (three-phase wiring is not reversed). Then, check whether the overload protection module is triggered; if it is triggered, reset it after eliminating the overload factor. If the above checks are normal, check the motor windings and bearings to see if there is insulation damage or bearing jamming. |
Procurement Guide
The M350 series industrial electric motor (M350-37kW, M350-45kW, M350-55kW) is a high-efficiency, high-reliability power solution that can effectively solve the pain points of high energy consumption, frequent failures, and high maintenance costs in industrial production. It is widely used in metallurgy, chemical engineering, water treatment, mining and other industries, and has been recognized and trusted by a large number of users. If you have procurement needs for industrial electric motors, please contact us to learn more about product details, quotation information, and customization services. We will provide you with high-quality products and professional services to help your enterprise reduce operational costs and improve production efficiency.
