80 Gal. Vertical Air Compressor | 5HP 1-Phase | 18.1 CFM @100 PSI | Two-Stage Cast Iron Pump | Castair

The CASTAIR Commercial Series 80-gallon vertical air compressor delivers the reliable power and performance that serious professionals demand on the job site. Built by Castair and distributed nationwide by Forge Claw, this 5HP single-phase unit combines robust construction with intelligent engineering to provide years of dependable service in demanding commercial and industrial applications.

At the heart of this compressor lies a two-stage cast iron pump that operates at an efficient 715 RPM, significantly slower than typical high-speed pumps. This design choice reduces noise levels while dramatically extending service life through reduced wear and heat generation. The oil-lubricated system ensures smooth operation and superior longevity compared to oil-less alternatives that simply can't match this level of durability.

Professional contractors and shop owners appreciate the substantial 18.1 CFM output at 100 PSI, providing ample airflow for multiple pneumatic tools simultaneously. Whether you're running impact wrenches in an automotive shop, powering spray equipment for painting projects, or operating pneumatic tools on a construction site, this compressor maintains consistent pressure and flow rates throughout extended work sessions.

The 80-gallon ASME-compliant tank provides substantial air storage capacity, reducing cycle times and ensuring steady pressure delivery even during high-demand applications. This vertical configuration maximizes air storage while maintaining a compact footprint, making it ideal for shops and facilities where floor space comes at a premium. The powder-coated finish resists corrosion and maintains a professional appearance even in harsh industrial environments.

Forge Claw selected this model for distribution because it represents exceptional value in the commercial compressor market. The combination of American-made components, including the heavy-duty Baldor motor, with Castair's proven pump technology creates a compressor that outperforms units costing significantly more while providing the reliability that busy professionals require.

The single-phase 230V power requirement makes this compressor suitable for most commercial facilities without requiring three-phase electrical service. The 5HP motor operates with a full 15% service factor, providing additional power reserves during demanding applications while ensuring long motor life. This electrical configuration offers the perfect balance between power output and electrical accessibility for most professional applications.

Quality construction details throughout this compressor reflect Castair's commitment to building equipment that withstands daily commercial use. From the precision steel connecting rods with automotive-grade bearings to the tapered roller bearings supporting the crankshaft, every component is engineered for extended service life. These aren't shortcuts or compromises—they're deliberate design choices that translate into reduced downtime and lower operating costs over the compressor's lifespan.

The centrifugal unloader system ensures effortless startup every time, even after extended periods of inactivity. This feature eliminates the strain on electrical systems and motors that can occur with loaded starts, while also reducing wear on starter components. Operators appreciate the consistent, reliable starting performance regardless of ambient temperature or tank pressure conditions.

Maintenance accessibility was clearly prioritized during the design process, with features like the easy-to-read sight glass for instant oil level verification and automotive-type paper element filters that provide clean intake air while dampening noise. The disc and spring valve design allows for straightforward service and replacement when needed, keeping maintenance costs reasonable and minimizing downtime.

• Tank Capacity: 80 gallons vertical configuration
• Motor: 5HP single-phase, 230V, 3450 RPM with 15% service factor
• Motor Manufacturer: Baldor (Made in USA)
• Air Flow: 21.7 CFM at 0 PSI, 18.1 CFM at 100 PSI
• Pump Type: Two-stage cast iron, oil-lubricated
• Pump Speed: 715 RPM for quiet operation and extended life
• Tank Compliance: ASME-certified with safety valves
• Electrical Requirements: 30A breaker required
• Crankshaft Support: Tapered roller bearings at both ends
• Connecting Rods: Precision steel with automotive-type insert bearings
• Valve Design: Disc and spring valves for reliability
• Tank Construction: Powder-coated steel with four-leg stability base
• Country of Origin: Made in USA

• Two-Stage Cast Iron Pump — operates at low 715 RPM for quiet operation and extended service life while delivering superior compression efficiency
• Oil Lubrication System — provides smooth operation and dramatically longer component life compared to oil-less designs that suffer from increased wear
• Precision Steel Connecting Rods — feature automotive-type rod insert bearings at crankshaft and bearings at wrist pin for exceptional durability and reliability
• Tapered Roller Bearings — support both ends of crankshaft for superior load distribution and reduced friction compared to standard bearing designs
• Centrifugal Unloader System — ensures effortless startup every operation by automatically unloading compression chambers during starting sequence
• Heavy-Duty Baldor Motor — American-made 5HP motor runs at 3450 RPM with full 15% service factor for reliable power delivery and extended motor life
• ASME-Compliant 80 Gallon Tank — features powder-coated finish, four-leg stability design, and certified safety valves for safe operation in commercial environments
• Professional Safety Features — includes rigid metal belt guard, automatic pressure switch, and quality air filters for safe and reliable operation

The 18.1 CFM output at 100 PSI means you can run multiple air tools simultaneously without waiting for the tank to recharge between operations. This consistent airflow keeps your crew productive throughout the day, whether you're operating impact guns, nail guns, or spray equipment. The substantial 80-gallon capacity reduces motor cycling, which extends equipment life while maintaining steady pressure for demanding applications.

The slow-speed 715 RPM pump design dramatically reduces operating noise compared to high-speed units that scream at 1800 RPM or higher. Your shop stays comfortable for workers and meets noise regulations in most commercial environments. This quiet operation also indicates lower internal stress on components, translating to fewer repairs and longer service intervals.

Cast iron pump construction with oil lubrication delivers exceptional durability that pays dividends over years of use. While oil-less compressors wear out quickly under commercial loads, this lubricated system handles continuous duty cycles without premature failure. The precision bearings and steel connecting rods are built to automotive standards, ensuring reliability even in demanding industrial applications.

The vertical tank design maximizes air storage while occupying minimal floor space in your shop or garage. This efficient footprint leaves room for other equipment and work areas while still providing the substantial air capacity needed for professional applications. The four-leg base design provides excellent stability during operation, reducing vibration and ensuring safe operation.

Single-phase 230V operation means this compressor works with standard commercial electrical service without requiring expensive three-phase installations. The 5HP Baldor motor provides plenty of power while operating within the capabilities of most facility electrical systems. The 15% service factor provides additional power reserves during peak demand periods, ensuring consistent performance even under heavy loads.

The centrifugal unloader system eliminates starting problems that plague many compressors, especially in cold weather or after extended shutdown periods. This reliable starting reduces electrical system stress and prevents nuisance breaker trips that can interrupt workflow. Your compressor starts smoothly every time, maintaining productivity and reducing frustration.

American manufacturing by Castair ensures quality control and parts availability that keeps your compressor running for decades. The combination of proven design principles with quality American components creates a compressor that outperforms imports while supporting domestic manufacturing. Forge Claw's nationwide distribution network ensures you have access to parts and service when needed.

This compressor excels in automotive shops, woodworking facilities, manufacturing plants, and construction sites where reliable compressed air is essential for daily operations. The 30-amp electrical requirement fits most commercial electrical systems, though you should verify your facility's electrical capacity before installation. Professional electrician installation ensures proper operation and safety compliance.

The ASME-certified tank meets industrial safety standards for commercial applications, providing peace of mind in professional environments. Regular oil level checks using the sight glass and periodic air filter replacement maintain optimal performance and extend service life. The automotive-grade paper element air filter provides excellent filtration while reducing intake noise.

For optimal performance, install the compressor on a level, solid surface with adequate ventilation around the motor and pump assembly. The vertical design naturally sheds moisture through the tank drain valve, which should be operated daily in humid environments or high-use applications. Regular oil changes using manufacturer-specified oil maintain pump lubrication and prevent premature wear.

The disc and spring valve design allows for straightforward maintenance and replacement when service intervals arrive. Quality replacement parts are readily available through Forge Claw's parts network, ensuring minimal downtime when service is needed. Following the manufacturer's maintenance schedule maximizes service life and maintains warranty coverage.

Manufactured by Castair, this product is covered under the manufacturer's standard warranty for defects in materials and workmanship. Contact Forge Claw for full warranty details and authorized service options. Order your 80 Gal. Vertical Air Compressor | 5HP 1-Phase 230V | 18.1 CFM @100 PSI | Two-Stage Cast Iron Pump | CASTAIR from Forge Claw today. Multiple financing options are available for qualified buyers.