Large Scale Synchronous Blast Furnace Blower Motor
- Product Description
Large Scale Synchronous Blast Furnace Blower Motor
Our Large Scale Synchronous Blast Furnace Blower Motor gives you enterprise-level performance you can trust when your blast furnace operation needs to be completely reliable and efficient. This motor, made by Tellhow Shenyang Electric Machine Co., Ltd., has a sophisticated electromagnetic design and is built to last for long-term use in industry. This option is made for the hardest industrial conditions. It has power rates from 1000 kW to 12000 kW, voltage ranges from 3 kV to 11 kV, and efficiency levels that cut energy use by 15–20%. This motor works at speeds of 1000 or 1500 r/min and has starting torque ratios of 1.0 and pull-out torque ratios of 2.0. It will keep working well for more than 8,000 hours a year in your blast furnace air supply systems.
Why Choose Our Synchronous Motors for Blast Furnace Applications?
Your metalworking processes can't have any slowdown or waste. That's why our motors are designed to work in the tough conditions of making iron and steel.
Unmatched Reliability in Harsh Environments
Some of the toughest industry places are where blast furnace fans work. The machines we sell have:
- Advanced cooling devices (IC37, IC81W) that keep temperatures at the best levels for operation
- Better protection grades (IP44, IP54, IP55) against dust and water getting in
- Handling of high-inertia loads built especially for constant fan running
- Design with little shaking that makes bearings last longer and requires less upkeep
Energy Efficiency That Impacts Your Bottom Line
Every percentage point of efficiency translates directly to lower operating costs. Our Large Scale Synchronous Blast Furnace Blower Motor incorporates:
- Unique magnetic circuit designs that make them work better
- Better electromagnetic design cuts down on costs
- Power factor flexibility getting close to unity
- About 15 to 20 percent less energy is used than with regular motors
You'll be able to see saves from the first day of business.
Flexible Configuration Options
Using a blast furnace is never the same twice. Because of this, we offer full customization:
- There are different voltage levels (3 kV to 11 kV) so that they can work with the power systems in your building.
- You can choose from 1000 to 12000 kW of power, depending on how much air you need.
- You can choose between 4-pole or 6-pole setups for the best speed matches.
- You can choose between 50 Hz and 60 Hz frequencies, or you can convert frequencies.
- You can choose between a shaft that is drilled for air clutch uses or one that isn't drilled for better starting ability.

Technical Specifications
We make sure that our motors meet strict worldwide standards and give your business the best performance possible.
| Parameter | Specification |
|---|---|
| Rated Voltage | 3 kV – 11 kV |
| Power Range | 1000 – 12,000 kW |
| Pole Number | 4, 6 |
| Speed | 1000, 1500 r/min |
| Frame Size | 1180, 1430, 1730 |
| Frequency | 50 Hz, 60 Hz, Variable Frequency |
| Cooling Method | IC37, IC81W |
| Protection Grade | IP44, IP54, IP55 |
| Mounting | IM7311 |
| Standards | IEC, GB |
| Starting Torque Ratio | 1.0 (at rated voltage) |
| Pull-in Torque Ratio | 0.8 |
| Pull-out Torque Ratio | 2.0 |
| Starting Current Ratio | 7.0 |
| Starting Method | Full voltage direct start or soft start |
Key Industrial Applications
Iron and Steel Metallurgy
Our motors excel in powering main axial compressors for blast furnace smelting operations. When you're running continuous production schedules exceeding 8,000 annual operating hours, you need equipment that won't let you down. The high starting torque capability handles the demanding startup requirements of large blower systems.
Large-Scale Air Separation Units
In cryogenic air separation plants producing industrial oxygen and nitrogen, precision matters. Our synchronous design provides the exact speed control needed to maintain gas purity specifications while handling massive air volumes efficiently.
Petrochemical Processing
Heavy-duty gas circulation and aeration blowers in refineries and chemical plants benefit from our robust construction. Even in corrosive atmospheres with extreme ambient temperatures, these motors maintain performance standards your processes require.

Intelligent Design Features
Advanced Thermal Management
Heat is the enemy of motor longevity. Our enhanced cooling systems ensure:
- Effective heat dissipation even during extended operation
- Consistent temperature profiles across all load conditions
- Extended insulation life through controlled thermal stress
Low Noise Operation
Your facility's work environment matters. Our motors feature:
- Optimized ventilation design minimizing acoustic emissions
- Balanced rotor assemblies reducing mechanical noise
- Compact structural design limiting resonance frequencies
Monitoring and Protection
Modern industrial operations demand intelligent equipment. Our motors support:
- Multi-dimensional condition monitoring integration
- Intelligent adaptive load regulation capabilities
- Wide voltage and frequency adaptability
- Fast torque response for dynamic load changes
Manufacturing Excellence
With 190,000 square meters of advanced manufacturing facilities and total production capacity of 8 million kW, Tellhow Shenyang Electric Machine Co., Ltd. brings industrial scale to specialized motor production.
Our 49 product series encompassing over 2,100 specifications demonstrate our engineering breadth. Each Large Scale Synchronous Blast Furnace Blower Motor benefits from:
- High-precision manufacturing processes
- Advanced quality control protocols
- Rigorous testing before shipment
- Compliance with international standards (IEC, GB)

Customization and Support Services
Tailored Solutions (ODM/OEM)
Your application may have unique requirements. We provide:
- Custom power and speed configurations
- Insulation class optimization for your environment
- Structural modifications to fit existing installations
- Small-batch and large-scale production flexibility
Comprehensive Support Network
From installation through decades of operation, you're not alone:
- Professional engineering consultation during specification
- Technical support throughout commissioning
- Stable spare parts supply chain
- Lifecycle maintenance services
Global Standards Compliance
Our commitment to quality extends to meeting international certification requirements. Products comply with multiple global standards including CE, UL, VDE, SASO, SNI, PSE, KC, and CCC certifications. This ensures your equipment meets safety, reliability, and environmental compliance standards regardless of your facility's location.
Frequently Asked Questions
Q: Can these motors handle direct online starting?
A: Yes, our motors can start at full voltage directly or use soft-start methods at lower voltage, depending on your electrical infrastructure capabilities. The starting current ratio of 7.0 and starting torque ratio of 1.0 provide reliable startup performance.
Q: What's the difference between drilled shaft and non-drilled shaft options?
A: Drilled shaft motors are designed for air clutch applications, providing mechanical coupling flexibility. Non-drilled shaft motors offer higher starting ability and are suitable when direct coupling to the load is preferred.
Q: How does the cooling system handle continuous operation?
A: We offer IC37 and IC81W cooling methods designed specifically for continuous duty cycles. The IC81W water-to-air cooling is particularly effective for high ambient temperature environments common in metallurgical facilities.
Q: What maintenance intervals should we expect?
A: With proper operating conditions, major maintenance intervals typically range from 18,000 to 25,000 operating hours. Routine inspections should focus on bearing lubrication, cooling system cleanliness, and insulation resistance testing.
Q: Can these motors operate with variable frequency drives?
A: Yes, we offer frequency conversion capability. When operating with VFDs, we recommend reinforced insulation systems to handle voltage spikes and ensure insulated bearing installation to prevent shaft current damage.
Q: How do you ensure quality during manufacturing?
A: Every motor undergoes comprehensive testing including insulation resistance verification, dynamic balancing to international standards, heat run tests, and full-load performance validation before shipment.
Q: What documentation do you provide with each motor?
A: Complete technical documentation packages include dimensional drawings, electrical schematics, performance curves, installation guidelines, and maintenance manuals tailored to your specific configuration.
Contact Us
Reach out to our technical team at sxmotor@yeah.net to discuss your specific requirements for Large Scale Synchronous Blast Furnace Blower Motor.
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