Compressor

Ingersoll-Rand C100MX3-2SH

Used Air Compressor Ingersoll-Rand CENTAC C100MX3-2SH 8.23 bar


General Description of the Used Air Compressor Ingersoll-Rand CENTAC 


The Used Air Compressor Ingersoll-Rand CENTAC C100MX3-2SH 8.23 bar efficiently meets industrial compressed air supply needs. Consequently, its advanced structure ensures reliable and continuous operation. Furthermore, a three-phase electric motor directly couples through a gear-type spacerless coupling, optimizing performance by minimizing mechanical losses and improving power transmission.


This compressor belongs to the Low Pressure category, operating at a maximum pressure of 8.23 bar absolute, which is equivalent to approximately 7.23 bar relative to atmospheric pressure. As a result, its design makes it ideal for industrial applications that do not require pressures exceeding 10-15 bar, ensuring stable and efficient operation.


The machine utilizes a three-stage compression configuration, which progressively increases air pressure. Additionally, each stage features combined aluminum and cast iron diffusers, while a cooling system with intercoolers at each stage and a final aftercooler enhances operational efficiency. Moreover, onboard instrumentation includes temperature and pressure transducers, ensuring continuous performance monitoring.


Technical Data and Performance


The Used Air Compressor Ingersoll-Rand CENTAC C100MX3-2SH 8.23 bar operates with an absolute intake pressure of 99.3 kPa, whereas its discharge pressure reaches 8.23 bar absolute. It delivers an air supply capacity of 2190 m³/h, making it highly suitable for large-scale industrial applications.


Its three-phase asynchronous squirrel cage motor runs within a voltage range of 380 to 415V, at 50 Hz, providing a nominal power of 680 kW and a rotational speed of 2970 RPM. Similarly, the motor features an IP23 protection rating and Class F insulation, allowing a maximum operating temperature of 100°C. Given these specifications, a star/delta starting configuration limits the number of starts to three when cold and two when hot per hour, thereby preventing excessive thermal and mechanical stress.


Structure and Components


A vertically split cast iron casing enhances the machine’s robustness, facilitating easy maintenance and quick access to internal components. In particular, the Bull-Gear, constructed from AGMA 12-grade helical steel, operates with oil-lubricated hydrodynamic sleeve bearings, ensuring reliability and longevity. Furthermore, the 17-4PH stainless steel impellers feature a semi-open design with backward-leaning blades to maximize aerodynamic efficiency. In the same way, aluminum and cast iron diffusers aid in pressure recovery and maintain operational stability.
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The lubrication system integrates an oil reservoir coated with epoxy for corrosion resistance. Additionally, a 0.75 kW pre/post lubrication pump, operating at 380/415V, maintains continuous oil circulation, protecting moving components.