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𝗙𝗥𝗘𝗘 𝗦𝗛𝗜𝗣𝗣𝗜𝗡𝗚 𝗜𝗡 𝗟𝗢𝗪𝗘𝗥 𝟰𝟴 𝗦𝗧𝗔𝗧𝗘𝗦 & 𝗡𝗢 𝗦𝗔𝗟𝗘𝗦 𝗧𝗔𝗫
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20 Gal. Horizontal Air Compressor for Workshop | 2HP | Single Phase 115V | Cast Iron Pump | Castair

Original price $1,286.00 - Original price $1,286.00
Original price
$1,286.00
$1,286.00 - $1,286.00
Current price $1,286.00
We Will Beat Any Competitor Price.
Just call us at (888) 388-6514, or message us by clicking on the blue Live Chat button in the bottom right corner or email at sales@forgeclaw.com

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What Sets Us Apart
12-Month Warranty (Industry-Leading Coverage)
Free Shipping (Lower 48 US States)
• Comes with hoses, fittings, and couplers (Jobsite ready)
  • 20 gallon tank capacity
  • 2HP single phase motor
  • Cast iron pump construction
  • 6.5 CFM at 100 PSI
  • 135 PSI maximum pressure
  • Belt-driven V-twin design
  • Oil lubricated system
  • ASME compliant tank
  • 10-inch transport wheels
  • 115V electrical requirement
Overview

The CASTAIR Garage Series 20 Gallon Horizontal Portable Air Compressor sets the standard for professional-grade performance in workshop and garage environments. Built by Castair and distributed exclusively by Forge Claw, this 2HP single-phase compressor delivers the reliability and durability that contractors, mechanics, and serious DIY enthusiasts demand from their air tools.

What separates this compressor from typical garage units is its signature cast iron pump design. While many compressors cut corners with aluminum components, Castair engineers this unit with a slow-running, oil-lubricated cast iron pump that operates at lower RPMs for whisper-quiet performance and extended service life. The belt-driven design reduces vibration and wear, ensuring your compressor runs smoothly for years of heavy use.

The 20-gallon ASME-compliant tank provides ample air storage for most pneumatic tools while maintaining a compact horizontal footprint that fits easily in garages and workshops. Manufactured in the USA and finished with a durable blue powder coat, the tank resists corrosion and maintains its professional appearance even in demanding environments.

Performance numbers tell the real story: this compressor delivers 10.4 CFM at 0 PSI and 6.5 CFM at 100 PSI, providing consistent airflow for framing nailers, impact wrenches, spray guns, and other high-demand tools. The single-stage pump features smooth-running V-twin cylinders with 360-degree cooling around both cylinders, preventing overheating during extended operation.

Forge Claw selected this compressor for distribution because it represents genuine value for professionals who need reliable air power. The automotive-grade components, including paper element air filters and main ball bearings, ensure clean operation and long-term durability. You're not just buying a compressor—you're investing in a workhorse that'll handle whatever your projects throw at it.

The horizontal design offers stability during operation while keeping the overall profile low for easy storage and transport. Large 10-inch wheels with steel hubs and dual ball bearings make moving this 165-pound unit manageable, whether you're rolling it across the shop floor or loading it into a truck bed for job site work.

Every detail reflects Castair's commitment to quality construction. The easy-to-read sight glass lets you check oil levels at a glance, while the bleeder pressure switch ensures load-less starts that reduce strain on your electrical system. This compressor requires a dedicated 20-amp outlet and should never be operated on extension cords or GFI circuits for optimal performance and safety.

When you choose this CASTAIR compressor through Forge Claw, you're getting more than just equipment—you're partnering with a distributor known for expert support and multiple financing options for qualified buyers. Our team understands the demands of professional work and stands behind every unit we deliver.

Specifications
  • Tank Capacity: 20 gallons
  • Motor: 2 HP, single phase, 115V
  • Air Delivery: 10.4 CFM at 0 PSI, 6.5 CFM at 100 PSI
  • Maximum Pressure: 135 PSI
  • Pump Type: Single stage, oil-lubricated cast iron
  • Drive System: Belt-driven V-twin cylinder design
  • Tank Construction: ASME-compliant steel with powder coat finish
  • Wheels: 10-inch diameter, 3-inch wide with steel hubs and dual ball bearings
  • Electrical Requirements: 20 amp dedicated outlet, 115V
  • Approximate Weight: 165 pounds
  • Tank Origin: Made in USA
  • Overall Configuration: Horizontal portable design
Features
  • Cast Iron Belt-Driven Pump — delivers superior durability and quieter operation compared to direct-drive aluminum alternatives
  • Oil Lubrication System — reduces friction and heat buildup for extended pump life and consistent performance
  • Automotive Paper Element Air Filters — provide clean intake air while contributing to quiet operation and engine protection
  • Easy-Read Sight Glass — allows quick visual oil level checks without stopping operation or removing covers
  • V-Twin Cylinder Design — ensures smooth operation with 360-degree cooling around both cylinders for heat dissipation
  • Automotive Main Ball Bearings — provide exceptional crankshaft support for reduced wear and vibration
  • Bleeder Pressure Switch — enables load-less starts that reduce electrical demand and extend motor life
  • Heavy-Duty Wheel System — features large 10-inch wheels with steel hubs and dual bearings for smooth transport
Benefits

Time savings become immediately apparent when you're running multiple air tools without waiting for pressure recovery. The 20-gallon tank stores enough compressed air to handle burst demands from framing nailers, while the 6.5 CFM output at working pressure keeps spray guns and sanders running continuously. You'll spend more time working and less time waiting.

The cast iron pump construction translates directly into lower operating costs over the compressor's lifetime. While aluminum pumps may require replacement or major repairs within a few years of heavy use, this cast iron unit is built to run for decades with proper maintenance. The oil lubrication system and low RPM operation reduce wear on internal components, extending service intervals and reducing downtime.

Durability advantages show up in real workshop conditions where compressors face daily abuse. The powder-coated steel tank resists corrosion from moisture and chemicals, while the belt-driven design isolates the pump from motor vibration that can loosen connections and cause premature failure. Heavy-duty wheels with steel hubs won't crack or break when rolling over shop debris or loading ramps.

Productivity improvements come from consistent air pressure delivery that keeps your tools operating at peak performance. The V-twin cylinder design with 360-degree cooling prevents the pressure drops and overheating issues that plague single-cylinder units during extended use. Your impact tools maintain full torque, spray guns deliver even coverage, and pneumatic lifts operate smoothly without hesitation.

Workshop versatility expands when you have reliable air power for everything from tire inflation to precision detail work. The quiet operation means you can run this compressor in residential garages without disturbing neighbors, while the horizontal design fits under workbenches and in tight storage spaces. The 135 PSI maximum pressure handles high-pressure applications while providing plenty of reserve capacity for consistent tool operation.

Professional reliability matters when your business depends on functional equipment every day. This CASTAIR compressor eliminates the frustration of unreliable air supply that can halt productive work and disappoint customers. The automotive-grade components and American-made tank ensure this unit will be working long after cheaper alternatives have been replaced multiple times.

Additional Information

This compressor serves contractors, mechanics, woodworkers, and serious hobbyists who demand professional-grade performance from their air tools. The 115V single-phase motor works with standard electrical systems found in most garages and workshops, while the 20-amp requirement ensures adequate power delivery for consistent operation. Small commercial shops, vehicle restoration facilities, and home workshops all benefit from this unit's combination of capacity and reliability.

Compatibility extends across the full range of pneumatic tools commonly used in automotive and construction work. Framing nailers, finish nailers, impact wrenches, spray guns, sanders, grinders, and inflation tools all operate effectively with this compressor's output specifications. The horizontal tank design provides a stable platform that won't tip during operation, even with heavy hose pulls and tool movement.

Operating this compressor effectively requires attention to a few key practices that maximize performance and longevity. Always use a dedicated 20-amp circuit without extension cords or GFI protection, as voltage drops can damage the motor and reduce efficiency. Check oil levels regularly using the sight glass, and follow Castair's recommended oil change intervals to maintain pump lubrication. Keep air filters clean to ensure proper airflow and quiet operation.

Maintenance requirements remain minimal with proper care and attention to operating conditions. The oil-lubricated pump needs periodic oil changes and filter replacements, while the tank should be drained regularly to remove moisture buildup. The belt-driven design allows for easy belt replacement when needed, and the cast iron pump construction tolerates minor neglect better than aluminum alternatives. Forge Claw provides ongoing support for maintenance questions and parts availability.

Warranty Info

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 CASTAIR Compressor | Garage Series | 20 Gal. Horizontal Portable | 2HP - 1 Phase 115V from Forge Claw today. Multiple financing options are available for qualified buyers.

Video Overview

What CFM and PSI does this compressor deliver?

This 20-gallon horizontal compressor delivers 10.4 CFM at 0 PSI and 6.5 CFM at 100 PSI, with a maximum pressure rating of 135 PSI. The single-stage cast iron pump design provides consistent airflow that meets the demands of most pneumatic tools used in workshops and garages. The 6.5 CFM output at working pressure ensures continuous operation of spray guns, sanders, and other air tools without significant pressure drops. The V-twin cylinder configuration with 360-degree cooling maintains performance during extended use sessions. This airflow capacity handles burst demands from framing nailers while providing steady pressure for detail work. The belt-driven design operates at lower RPMs than direct-drive units, contributing to quieter operation and longer service life. Whether you're running impact wrenches, blow guns, or inflation equipment, this compressor provides the consistent air supply needed for professional results. Forge Claw offers multiple financing options for qualified buyers.

What air tools can I run with this compressor?

This compressor effectively powers a wide range of pneumatic tools commonly used in workshops and job sites. The 6.5 CFM at 100 PSI output handles framing nailers, brad nailers, and finish nailers with ease, providing consistent power for construction and carpentry work. Impact wrenches up to 1/2 inch drive operate smoothly for automotive and mechanical applications. The airflow capacity supports spray guns for painting projects, automotive refinishing, and coating applications. Sanders, grinders, and polishers run continuously without pressure lag during surface preparation work. Blow guns, tire inflators, and general cleaning equipment operate efficiently for maintenance tasks. The 20-gallon tank provides sufficient air storage for burst-demand tools while maintaining pressure for continuous-use applications. Tools requiring higher CFM ratings may cycle the compressor more frequently but will still operate effectively. The 135 PSI maximum pressure accommodates tools with varying pressure requirements, from low-pressure spray equipment to high-pressure cleaning applications.

Is this compressor portable enough for job sites?

Yes, this horizontal compressor features a portable design optimized for both workshop use and job site transport. The 165-pound weight requires two people for lifting but the large 10-inch wheels with steel hubs and dual ball bearings make ground-level movement manageable for one person. The horizontal configuration keeps the center of gravity low, providing stability during operation and easier loading into truck beds or trailers. The compact footprint fits in most vehicle cargo areas while the durable powder-coated finish resists damage from transport and outdoor conditions. The belt-driven design tolerates the vibration and movement associated with job site transport better than direct-drive alternatives. However, this unit requires a dedicated 20-amp outlet and should never be operated on extension cords or GFI circuits, which may limit some job site applications. The ASME-compliant tank construction meets safety standards for professional use. For contractors who need reliable air power at multiple locations, this compressor offers the right balance of performance and transportability.

What maintenance does this compressor require?

Regular maintenance ensures optimal performance and longevity from this cast iron compressor. Check oil levels using the easy-read sight glass before each use and change oil according to manufacturer intervals, typically every 300-500 hours of operation or annually. The automotive-grade paper element air filter should be inspected monthly and replaced when dirty or clogged to maintain clean intake air and quiet operation. Drain moisture from the tank daily in humid conditions or weekly during normal use to prevent internal corrosion. Inspect belt tension periodically and adjust as needed - proper belt maintenance prevents slippage and extends component life. Check all fittings and connections for air leaks, tightening as necessary to maintain system efficiency. The bleeder valve should be tested regularly to ensure proper load-less starting operation. Clean cooling fins on the pump and motor to maintain proper heat dissipation. Store the compressor in a dry location when not in use for extended periods. Following these maintenance practices maximizes the service life of the cast iron pump and ensures reliable performance for years of professional use.

How does tank size affect how long I can run tools continuously?

The 20-gallon tank capacity significantly impacts continuous tool operation by storing compressed air for immediate use during peak demand periods. Tools with intermittent use patterns like nailers benefit greatly from the air storage, allowing multiple rapid-fire shots before the compressor cycles on. Continuous-use tools like spray guns and sanders can operate longer between compressor cycles, reducing interruptions and improving work efficiency. The tank acts as a buffer between the compressor's output capacity and tool demand - when tool requirements exceed the 6.5 CFM output, stored air bridges the gap. Larger tanks reduce cycling frequency, which extends motor life and reduces noise in the workspace. For applications requiring sustained high CFM, the compressor will run more frequently but the tank prevents pressure drops that affect tool performance. The 20-gallon size represents an optimal balance for most workshop applications - large enough to handle burst demands without being oversized for typical air tool requirements. Understanding your specific tool CFM requirements and duty cycles helps determine if this tank size matches your workflow needs.

Overview

The CASTAIR Garage Series 20 Gallon Horizontal Portable Air Compressor sets the standard for professional-grade performance in workshop and garage environments. Built by Castair and distributed exclusively by Forge Claw, this 2HP single-phase compressor delivers the reliability and durability that contractors, mechanics, and serious DIY enthusiasts demand from their air tools.

What separates this compressor from typical garage units is its signature cast iron pump design. While many compressors cut corners with aluminum components, Castair engineers this unit with a slow-running, oil-lubricated cast iron pump that operates at lower RPMs for whisper-quiet performance and extended service life. The belt-driven design reduces vibration and wear, ensuring your compressor runs smoothly for years of heavy use.

The 20-gallon ASME-compliant tank provides ample air storage for most pneumatic tools while maintaining a compact horizontal footprint that fits easily in garages and workshops. Manufactured in the USA and finished with a durable blue powder coat, the tank resists corrosion and maintains its professional appearance even in demanding environments.

Performance numbers tell the real story: this compressor delivers 10.4 CFM at 0 PSI and 6.5 CFM at 100 PSI, providing consistent airflow for framing nailers, impact wrenches, spray guns, and other high-demand tools. The single-stage pump features smooth-running V-twin cylinders with 360-degree cooling around both cylinders, preventing overheating during extended operation.

Forge Claw selected this compressor for distribution because it represents genuine value for professionals who need reliable air power. The automotive-grade components, including paper element air filters and main ball bearings, ensure clean operation and long-term durability. You're not just buying a compressor—you're investing in a workhorse that'll handle whatever your projects throw at it.

The horizontal design offers stability during operation while keeping the overall profile low for easy storage and transport. Large 10-inch wheels with steel hubs and dual ball bearings make moving this 165-pound unit manageable, whether you're rolling it across the shop floor or loading it into a truck bed for job site work.

Every detail reflects Castair's commitment to quality construction. The easy-to-read sight glass lets you check oil levels at a glance, while the bleeder pressure switch ensures load-less starts that reduce strain on your electrical system. This compressor requires a dedicated 20-amp outlet and should never be operated on extension cords or GFI circuits for optimal performance and safety.

When you choose this CASTAIR compressor through Forge Claw, you're getting more than just equipment—you're partnering with a distributor known for expert support and multiple financing options for qualified buyers. Our team understands the demands of professional work and stands behind every unit we deliver.

Specifications
  • Tank Capacity: 20 gallons
  • Motor: 2 HP, single phase, 115V
  • Air Delivery: 10.4 CFM at 0 PSI, 6.5 CFM at 100 PSI
  • Maximum Pressure: 135 PSI
  • Pump Type: Single stage, oil-lubricated cast iron
  • Drive System: Belt-driven V-twin cylinder design
  • Tank Construction: ASME-compliant steel with powder coat finish
  • Wheels: 10-inch diameter, 3-inch wide with steel hubs and dual ball bearings
  • Electrical Requirements: 20 amp dedicated outlet, 115V
  • Approximate Weight: 165 pounds
  • Tank Origin: Made in USA
  • Overall Configuration: Horizontal portable design
Features
  • Cast Iron Belt-Driven Pump — delivers superior durability and quieter operation compared to direct-drive aluminum alternatives
  • Oil Lubrication System — reduces friction and heat buildup for extended pump life and consistent performance
  • Automotive Paper Element Air Filters — provide clean intake air while contributing to quiet operation and engine protection
  • Easy-Read Sight Glass — allows quick visual oil level checks without stopping operation or removing covers
  • V-Twin Cylinder Design — ensures smooth operation with 360-degree cooling around both cylinders for heat dissipation
  • Automotive Main Ball Bearings — provide exceptional crankshaft support for reduced wear and vibration
  • Bleeder Pressure Switch — enables load-less starts that reduce electrical demand and extend motor life
  • Heavy-Duty Wheel System — features large 10-inch wheels with steel hubs and dual bearings for smooth transport
Benefits

Time savings become immediately apparent when you're running multiple air tools without waiting for pressure recovery. The 20-gallon tank stores enough compressed air to handle burst demands from framing nailers, while the 6.5 CFM output at working pressure keeps spray guns and sanders running continuously. You'll spend more time working and less time waiting.

The cast iron pump construction translates directly into lower operating costs over the compressor's lifetime. While aluminum pumps may require replacement or major repairs within a few years of heavy use, this cast iron unit is built to run for decades with proper maintenance. The oil lubrication system and low RPM operation reduce wear on internal components, extending service intervals and reducing downtime.

Durability advantages show up in real workshop conditions where compressors face daily abuse. The powder-coated steel tank resists corrosion from moisture and chemicals, while the belt-driven design isolates the pump from motor vibration that can loosen connections and cause premature failure. Heavy-duty wheels with steel hubs won't crack or break when rolling over shop debris or loading ramps.

Productivity improvements come from consistent air pressure delivery that keeps your tools operating at peak performance. The V-twin cylinder design with 360-degree cooling prevents the pressure drops and overheating issues that plague single-cylinder units during extended use. Your impact tools maintain full torque, spray guns deliver even coverage, and pneumatic lifts operate smoothly without hesitation.

Workshop versatility expands when you have reliable air power for everything from tire inflation to precision detail work. The quiet operation means you can run this compressor in residential garages without disturbing neighbors, while the horizontal design fits under workbenches and in tight storage spaces. The 135 PSI maximum pressure handles high-pressure applications while providing plenty of reserve capacity for consistent tool operation.

Professional reliability matters when your business depends on functional equipment every day. This CASTAIR compressor eliminates the frustration of unreliable air supply that can halt productive work and disappoint customers. The automotive-grade components and American-made tank ensure this unit will be working long after cheaper alternatives have been replaced multiple times.

Additional Information

This compressor serves contractors, mechanics, woodworkers, and serious hobbyists who demand professional-grade performance from their air tools. The 115V single-phase motor works with standard electrical systems found in most garages and workshops, while the 20-amp requirement ensures adequate power delivery for consistent operation. Small commercial shops, vehicle restoration facilities, and home workshops all benefit from this unit's combination of capacity and reliability.

Compatibility extends across the full range of pneumatic tools commonly used in automotive and construction work. Framing nailers, finish nailers, impact wrenches, spray guns, sanders, grinders, and inflation tools all operate effectively with this compressor's output specifications. The horizontal tank design provides a stable platform that won't tip during operation, even with heavy hose pulls and tool movement.

Operating this compressor effectively requires attention to a few key practices that maximize performance and longevity. Always use a dedicated 20-amp circuit without extension cords or GFI protection, as voltage drops can damage the motor and reduce efficiency. Check oil levels regularly using the sight glass, and follow Castair's recommended oil change intervals to maintain pump lubrication. Keep air filters clean to ensure proper airflow and quiet operation.

Maintenance requirements remain minimal with proper care and attention to operating conditions. The oil-lubricated pump needs periodic oil changes and filter replacements, while the tank should be drained regularly to remove moisture buildup. The belt-driven design allows for easy belt replacement when needed, and the cast iron pump construction tolerates minor neglect better than aluminum alternatives. Forge Claw provides ongoing support for maintenance questions and parts availability.

Warranty Info

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 CASTAIR Compressor | Garage Series | 20 Gal. Horizontal Portable | 2HP - 1 Phase 115V from Forge Claw today. Multiple financing options are available for qualified buyers.

Video Overview