Used Air Compressors
Air compressors convert power into pressurized air for pneumatic tools, process control, and equipment operation across manufacturing facilities. They range from small reciprocating units for intermittent use to large centrifugal systems delivering thousands of CFM for continuous industrial demand.
Federal Equipment Company stocks rotary screw, centrifugal, and reciprocating air compressors from leading manufacturers. Current inventory includes oil-free and oil-injected configurations from 2 HP to 700 HP, with capacities ranging from small shop units to large centrifugal systems. Many units include integrated or matched air dryers.
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Sell Your Equipment — Have surplus air compressors or related equipment? We purchase used compressed air systems and can provide a competitive quote.
Browse our selection below and request a quote for more information regarding our Used Air Compressors.
You can also view our full on-hand inventory across all categories.
Air compressors pressurize atmospheric air for use in pneumatic systems, process control, and equipment operation. The three main compressor types serve different operational needs. Reciprocating compressors use pistons to compress air in cycles, making them suitable for intermittent demand and smaller applications. Rotary screw compressors use helical screws to deliver continuous airflow, offering quieter operation and higher duty cycles for industrial use. Centrifugal compressors use high-speed impellers to move large air volumes, serving facilities with constant high-volume demand.
Key components include the compression element (airend, piston, or impeller), drive motor, cooling system, and control panel. Oil-injected models use lubricant to seal and cool the compression chamber, while oil-free designs isolate the air path for applications requiring contaminant-free output.
Air treatment is essential for most applications. Compressed air contains moisture and particulates that can damage downstream equipment or contaminate processes. Refrigerated dryers cool air to condense moisture, while desiccant dryers use adsorbent media for lower dewpoints. Many systems pair compressors with filters, separators, and receivers to deliver clean, dry, stable airflow.
Federal Equipment Company stocks air compressors and dryers across all three compressor types. Inventory includes units for small shop applications through large plant systems. Equipment is available for inspection at our facility, and our team can assist with selection, testing, and refurbishment services.
Applications & Industries - Pharmaceutical manufacturing for clean, oil-free process air
- Food and beverage processing and packaging lines
- Chemical plants for pneumatic conveying and instrumentation
- Plastics molding and extrusion operations
- General manufacturing for pneumatic tools and automation
- Wastewater treatment aeration systems
- Metal fabrication and machining facilities
Specifications & Configurations
Compressor Types:
- Rotary screw (oil-injected and oil-free)
- Centrifugal/turbo (multi-stage, high-volume)
- Reciprocating (single and two-stage)
Capacity Ranges:
- Horsepower: 2 HP to 700 HP
- Flow rates: 4.6 SCFM to 3,200 ICFM
- Discharge pressure: 100 PSI to 145 PSI typical
Configurations:
- Air-cooled and liquid-cooled models
- Tank-mounted and standalone units
- Integrated dryer systems (refrigerated and desiccant)
- Variable frequency drive (VFD) models for energy efficiency
Air Treatment Equipment:
- Refrigerated air dryers
- Desiccant dryers (heatless and heated)
- Inline filters and moisture separators
Why Buy Used Air Compressors?
Used air compressors offer significant cost advantages over new equipment, typically 40-60% below new pricing depending on age, condition, and manufacturer. Lead times for new compressor systems can range from 12 to 20 weeks, while used units are available for immediate shipment.
Federal Equipment Company inspects, tests, and can refurbish air compressors before sale. Services include air-end evaluation, motor testing, control system verification, and filter/separator replacement. Many units in inventory have documented service histories and low operating hours.
