High and Low kW Cast Iron Body Electric Motors
DRG Motor – The Address of Durability, Power, and Efficiency
Contact: +90 (542) 666 11 11
Electric motors are the heart of industrial systems. However, every application requires a different power range — some systems demand low power with precise control, while others require high torque and long-term durability.
At this point, cast iron body electric motors stand out as reliable, robust, and long-lasting solutions, available in both low kW and high kW configurations.
DRG Motor, with its cast iron body IE3 and IE4 class motors, enhances the energy efficiency and operational life of industrial facilities.
1. The Importance of a Cast Iron Body
Cast iron is known for its high strength and vibration damping properties. Using cast iron as a housing material ensures that the motor operates stably, quietly, and safely for many years.
Its low expansion rate at high temperatures also preserves the mechanical integrity of the motor.
For this reason, DRG Motor’s cast iron body series are preferred in both high kW industrial motors and low-power continuous-duty systems.
2. Low kW Cast Iron Body Motors (0.18 kW – 7.5 kW)
Low-power electric motors are commonly used in automation, fans, pumps, conveyors, and light industrial applications.
Even in these cases, durability is essential — this is where the advantage of cast iron becomes clear.
Advantages:
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Ideal for long-term continuous operation,
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Quiet performance in vibration-prone environments,
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High thermal stability,
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Resistant to deformation even under high torque.
DRG Low kW Cast Iron Series offers maximum durability in compact sizes.
For example, motors in the 1.1 kW – 4 kW range are widely used in industrial fan systems.
3. High kW Cast Iron Body Motors (7.5 kW – 500 kW and above)
High-power motors are designed for pumping stations, compressors, cranes, production lines, and large machinery.
These applications require motors that are not only powerful but also mechanically robust.
Features of DRG High kW Cast Iron Motors:
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High torque output and stable operation,
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Long-lasting bearing system,
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Resistance to high temperature and dusty environments,
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Compliance with IEC standards and IE3 – IE4 efficiency class.
These motors start from 7.5 kW and go up to 315 frame size, making them ideal for heavy-duty industrial use.
4. Comparison of Low and High kW Motors
| Feature | Low kW Cast Iron Motor | High kW Cast Iron Motor |
|---|---|---|
| Power Range | 0.18 – 7.5 kW | 7.5 – 500+ kW |
| Application | Fans, Conveyors, Compact Systems | Pumps, Compressors, Cranes, Heavy Industry |
| Body Type | Cast Iron | Cast Iron |
| Advantage | Long life under light load | Stable power under heavy load |
| Cooling | Natural Air Cooling | Advanced Fan Cooling |
| Efficiency | IE2 / IE3 | IE3 / IE4 |
Both motor types benefit from the rigidity and vibration absorption of cast iron, ensuring durability in harsh industrial environments.
5. Why Choose DRG Motor?
DRG Motor follows European manufacturing standards at every stage of production — from design to assembly.
Thanks to precision engineering, both low and high kW motors offer energy efficiency, quiet operation, and long service life.
Advantages of DRG Motors:
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Fully compliant with IEC and CE standards,
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Available in IE3 and IE4 efficiency classes,
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IP55 and higher protection options,
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Low noise and vibration levels,
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Long-lasting bearing systems.
DRG Cast Iron Motors are not only powerful but also stand out with energy efficiency and mechanical durability.
6. Industrial Applications
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Pump and Compressor Systems
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Stone Crushing and Mining Equipment
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Production Lines and Conveyors
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Fans and Blowers
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Agricultural and Irrigation Machinery
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Cranes and Elevator Systems
For businesses seeking reliable performance across all sectors, DRG Cast Iron Electric Motors represent a long-term investment in strength and efficiency.
7. Conclusion: Maximum Strength at Every Power Level
Whether it’s a 0.55 kW fan motor or a 250 kW pump motor,
DRG Cast Iron Body Electric Motors deliver the same level of quality and robustness across all power ranges.
Durable, energy-efficient, and quiet — DRG Motors are the trusted power behind industrial production.