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R11i Specifications, Features & Compatibility Guide

1 CFM (1589 LPM) at 125 psi.This stationary unit is built for continuous industrial duty, ensuring that heavy pneumatic systems receive a steady air supply without the cooling breaks required by reciprocating models.

Quick Answer

For Indian manufacturing units and workshops demanding uninterrupted, high-volume compressed air, the Ingersoll Rand R11i is a definitive investment. Its 11 kW motor and 56.1 CFM delivery guarantee continuous industrial operation without downtime, significantly boosting productivity. Operating at a mere 69 dB(A) and designed for efficiency, this rotary screw compressor excels where reliability and reduced long-term running costs are paramount.

The Ingersoll Rand R11i is ideal for Indian industrial setups requiring continuous, efficient compressed air supply and valuing long-term operational savings over initial capital expenditure. Avoid if your needs are residential or if upfront cost is the sole deciding factor, as its robust capabilities are designed for rigorous, sustained performance.

✓ Who Should Buy

  • • performance suitable for residential spaces.
  • •Verified efficiency of standard rating for reduced long-term operational costs.
  • •Structural stability for consistent cleaning under rigorous use cases.
  • •Hardware durability via premium components and advanced technology.
  • •Built-in grid protection with Standard power cycle voltage management.

✕ Who Should Avoid

  • •Spaces or usage requirements exceeding residential rated capacity.
  • •Installations prioritizing minimum capital expenditure over high-efficiency performance.
  • •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
  • •Environments incompatible with compressors physical and thermal dissipation specs.
Product Overview
The Ingersoll Rand R11i utilizes an 11 kW (15 HP) motor to drive an oil-injected rotary screw pump, delivering a consistent 56.1 CFM (1589 LPM) at 125 psi. This stationary unit is built for continuous industrial duty, ensuring that heavy pneumatic systems receive a steady air supply without the cooling breaks required by reciprocating models. With a noise rating of only 69 dB(A), the R11i integrates noise insulation and a powder-coated steel enclosure to facilitate installation near work areas. The system supports multiple 3-phase voltages including 208V, 230V, 460V, and 575V at 60 Hz, making it adaptable to various industrial power grids. Integrated safety features like the moisture separator and thermal protection ensure the internal 11 kW power input remains stable during high-demand production air line operations. The unit weighs between 295 and 365 kg depending on whether the optional 80 or 120-gallon tank mount is selected.

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Engineering Analysis
The transition from 57.5 CFM at lower pressures to 41.5 CFM at higher settings in the R11i is a result of the oil-injected rotary screw design, which optimizes air compression for specific tool requirements. Its 11 kW (15 HP) electric induction motor is paired with a smart controller that manages the Direct On Line (DOL) starter and monitors the overpressure protection systems. The 69 dB(A) acoustic profile is achieved through strategic noise insulation, allowing the unit to operate within a general workshop environment without exceeding OSHA-sensitive sound thresholds. Anti-vibration mounts are included to stabilize the 295–365 kg stationary base, preventing mechanical wear during the continuous run cycles common in industrial plant air supply. Furthermore, the inclusion of a moisture separator is critical for protecting downstream air tools from condensate, which is a byproduct of the high-volume 1589 LPM airflow produced by the 11 kW input.

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