GIORDANO COLOMBO RS90.2 Phase Ac Motor 7.5HP 220V/380V 18000RPM

( Brand: Giordano Colombo ), ( Manufacturer Part Number: RS90.2 ), ( Part Type: Ac 5hp Motor ), ( Actual Rated Input Voltage: 220 V, 380 V ), ( Full Load Amps: 21.5 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 300 Hz ), ( Base Rpm: 18000 ), ( Ac Motor Type: Induction/asynchronous ), ( Current Type: Ac ), ( Ip Rating: Ip54 ), ( Ac Phase: Three Phase )

Review GIORDANO COLOMBO Sb 7.5hp Three Phase Ac Motor 220v/380v 18000rpm

The **Giordano Colombo RS90.2 SB 7.5 HP Phase AC Motor** is a high-performance, industrial-grade electric motor engineered for demanding applications requiring precision, reliability, and efficiency. Part of Giordano Colombo s renowned RS series, this motor combines cutting-edge design with robust construction to deliver exceptional performance in a compact yet durable form factor. With a rated power output of **7.5 horsepower**, it is well-suited for heavy-duty industrial, agricultural, or commercial machinery, including pumps, compressors, conveyors, and other high-speed mechanical systems. Operating at an impressive **18,000 RPM**, this motor excels in applications where rapid rotational speed is critical, ensuring optimal productivity and reduced cycle times.

Built with a **phase AC induction motor** architecture, the RS90.2 SB is designed for compatibility with both **220V single-phase and 380V three-phase power supplies**, making it versatile for a wide range of global electrical infrastructures. Its **7.5 HP rating** provides a balanced blend of torque and speed, allowing it to handle substantial loads while maintaining operational stability. The motor s **SB (Standard Bearings)** configuration ensures smooth and low-friction operation, reducing wear and extending the lifespan of critical components. The **RS90.2** designation signifies a compact yet high-efficiency design, with optimized internal cooling and insulation systems to prevent overheating even under prolonged or intermittent heavy loads.

Giordano Colombo s reputation for innovation is evident in the RS90.2 SB s **advanced winding and magnetic core technology**, which enhances energy efficiency and minimizes power loss. The motor s **IP55 protection rating** ensures resistance against dust, dirt, and splashing water, making it ideal for harsh or unprotected environments such as factories, construction sites, or outdoor agricultural settings. Additionally, its **class F insulation** provides superior thermal resistance, allowing for extended operational lifespans and reduced maintenance downtime. The robust **aluminum or cast iron housing**, depending on the specific variant, offers excellent mechanical strength while keeping the overall weight manageable for ease of installation and integration into existing systems.

For applications requiring precise speed control, the RS90.2 SB can be paired with variable frequency drives (VFDs), though it is inherently designed for direct-on-line (DOL) starting in standard configurations. Its **low noise and vibration levels** contribute to a quieter operational environment, reducing fatigue in nearby machinery and improving workplace comfort. Whether deployed in **industrial automation, water pumping systems, HVAC units, or specialized machinery**, this motor delivers consistent performance with minimal energy consumption, aligning with modern sustainability goals. Giordano Colombo s commitment to quality ensures that each RS90.2 SB motor undergoes rigorous testing for reliability, durability, and adherence to international safety standards, making it a trusted choice for engineers and operators seeking a dependable power solution.

### **Pros and Cons of buying a Giordano Colombo RS90.2 SB 7.5 HP Phase AC Motor (220V/380V, 18,000 RPM)**

1. **High Power-to-Weight Ratio** The 7.5 HP motor delivers strong performance despite its compact size, making it suitable for applications requiring efficient power output without excessive bulk.

2. **Dual Voltage Compatibility (220V/380V)** This flexibility allows the motor to be used in different electrical systems without needing modifications, increasing its versatility for global or mixed-voltage environments.

3. **High RPM (18,000 RPM)** The high rotational speed is ideal for applications requiring fast operation, such as industrial machinery, pumps, compressors, or high-speed conveyor systems.

4. **Phase AC Motor Design** Being an AC induction motor, it offers reliable and consistent performance with lower maintenance requirements compared to DC motors in most cases.

5. **Potential for Long Lifespan** If properly maintained, AC motors like this one are known for durability, especially in industrial settings where they are built to withstand continuous operation.

6. **Compatibility with Giordano Colombo Brand** Giordano Colombo is a reputable manufacturer known for quality industrial motors, suggesting reliable engineering and after-sales support.

7. **Efficiency in Specific Applications** For applications such as air compressors, water pumps, or small-scale industrial equipment, this motor may provide an efficient balance between power and energy consumption.

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1. **High RPM May Require Additional Gear Reduction** At 18,000 RPM, the motor may need a gearbox or pulley system to match the speed requirements of slower applications (e.g., conveyors, mixers), adding complexity and potential maintenance points.

2. **Potential for Higher Noise Levels** High-speed motors can generate more noise, which may be a concern in environments where quiet operation is critical (e.g., offices, residential areas).

3. **Vibration and Wear Concerns** At such high speeds, vibration can increase over time, leading to wear on bearings, shafts, or connected machinery. Proper balancing and maintenance are essential.

4. **Higher Initial Cost Compared to Lower-Speed Motors** High-performance motors like this one may be more expensive upfront than standard industrial motors with lower RPM ratings.

5. **Sensitivity to Load Conditions** Motors operating at high RPM can be more susceptible to stalling or overheating if the load exceeds their capacity, requiring careful matching with the driven equipment.

6. **Limited Availability of Spare Parts** Depending on the region, finding replacement parts for specialized motors (especially from niche brands) may be challenging compared to more common motor types.

7. **Energy Consumption** While efficient, high-speed motors may consume more power during startup or under heavy loads, potentially increasing operational costs in energy-intensive applications.

8. **Not Ideal for Low-Speed Applications** If the intended use requires very low RPM (e.g., heavy-duty machinery like extruders or large fans), this motor would need significant speed reduction, reducing overall efficiency.

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The **Giordano Colombo RS90.2 SB 7.5 HP motor** is a well-engineered, high-performance AC motor suitable for applications demanding speed, power, and dual-voltage flexibility. It excels in scenarios where compact size, high RPM, and reliability are priorities such as in industrial pumps, compressors, or automated systems. However, its high speed introduces challenges like vibration, noise, and the need for additional gearing in some cases, which may offset its advantages for certain users.

- You need a **high-speed, dual-voltage motor** for applications like air handling, small-scale manufacturing, or precision machinery.

- Your setup can accommodate **speed reduction mechanisms** (e.g., belts, gearboxes) if needed.

- You prioritize **brand reliability** and are prepared for **proper maintenance** to mitigate wear and tear.

- Your application requires **very low RPM** (e.g., heavy-duty conveyors, large fans).

- Noise or vibration is a **critical concern** without mitigation strategies.

- You are operating in a **region with limited spare part availability** for this specific model.

If your project **requires a high-performance, dual-voltage motor with 18,000 RPM** and you can manage the associated operational considerations (e.g., gearing, maintenance), this motor is a strong choice. However, if cost, noise, or speed mismatches are significant concerns, evaluate whether a **lower-RPM motor with a built-in gearbox** or a **standard industrial motor** would better suit your needs. Always verify compatibility with your specific load requirements and consult an engineer if unsure.

Details:

Giordano Colombo RS90.2 SB 7.5HP Three Phase AC Motor 220V/380V 18000RPM Was on running machine does not work with new. Collects 17 some new used.

part #: rs902 prices

• $1000.00-$2000.00

specifications oelemot:

• brand: Giordano Colombo
• mpn: Rs90.2
• part type: Ac 5hp Motor
• actual rated input voltage: 220 V, 380 V
• full load amps: 21.5
• rated load: Hp
• ac frequency rating: 300 Hz
• base rpm: 18000
• ac motor type: Induction/asynchronous
• current type: Ac
• ip rating: Ip54
• ac phase: Three Phase

shipping oelemot:

• class: Standard
• service: USPS Ground Advantage
• transit: 5-12 Days
• type: Calculated
• carrier: USPS
• cost: $79.26

payments oelemot:

• credit card: Diners-club
• other
• wallet: Google-pay

returns oelemot:

• policy: No Returns

seller oelemot:

• # reviews: 630
• city: Renton, Washington
• rating: 100.0%

offer oelemot:

• started: March 29, 2026
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• best offers: True

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

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