Ingersoll rand r5.5i-145 230/1 rotary screw air compressor 1 phase, 230 volts, 7.5hp, 80 gal the durable ingersoll rand r-series 4-11 kw compressor extends the r-series family into the smallest rotary screw off ering with benefits like innovative features and a compact design that fits virtually any application environment. The r-series 4-11 kw family of compressors delivers optimum performance and easier maintenance, all in a robust, innovative package.
What Our Experts Think
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Reliable Performance: 7.5 HP rotary screw compressor delivers 24.3 CFM at 145 PSI, ideal for small-to-medium workshops.
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Durable Construction: 80-gallon horizontal tank built for long-lasting operation.
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Single-Phase Efficiency: 1PH 230V motor allows use in facilities without 3-phase power.
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Compact & Versatile: Space-saving design fits most workshop or production environments.
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Easy Maintenance: R-Series design provides quick access for routine service and checks.
Frequently Asked Questions
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Q: What applications is this compressor suitable for?
A: Small-to-medium industrial, automotive, and workshop environments requiring consistent airflow.
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Q: How energy efficient is it?
A: Single-phase 230V motor delivers reliable performance with optimized energy use.
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Q: How often should maintenance be performed?
A: Check oil and filters every 500 hours; professional servicing every 2,000 hours.
Maintenance Tips
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Oil Levels: Inspect weekly; use recommended rotary screw compressor oil.
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Air Filter: Clean or replace every 250–500 hours depending on usage.
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Tank Drain: Regularly remove condensate to prevent corrosion.
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Belts & Hoses: Inspect monthly and replace if worn.
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Professional Service: Annual inspection ensures optimal performance and reliability.
Damage 
Loss 
Theft 
