When running an automotive shop, a reliable air compressor is essential for keeping your operations running smoothly. Whether you’re inflating tires, powering pneumatic tools, or performing light sandblasting, choosing the right compressor is key to maintaining productivity. Small air compressors under 25HP are often the perfect fit for smaller shops or those looking to save on space and energy costs without sacrificing performance.
Atlas Copco, a leader in industrial compressors, offers a range of models that strike an ideal balance between power, efficiency, and reliability. In this buyer’s guide, we’ll explore the top 5 small air compressors under 25HP from Atlas Copco, highlighting their key features, pros and cons, and price points to help you make an informed decision for your shop.
Atlas Copco G4-145T 208-230/460 Air Compressor
| Key Features: Power: 5 HP CFM: 18 CFM Pressure: 145 PSI Tank Size: 53 Gallons | Price Range: $5,000 – $6,000 |
| PROS -Rotary screw design minimizes energy use and reduces operating costs. -Aftercooler, filter, and separator ensure clean, dry air, protecting tools and machinery. -Integrated 53 gallon air storage tank eliminates the need for separate air tanks. -The small footprint makes it easy to install in tight spaces, ideal for shops with limited room. -Oil-injected rotary screw ensures smooth, continuous, low-maintenance operation. -Operates quietly at 66 dB(A), ideal for shops that need quieter working environments. -Supports 208-230/460 V for different shop setups, making it adaptable to various electrical infrastructures. | CONS -Higher initial investment compared to smaller, less advanced models. -Routine maintenance (such as oil changes and filter replacements) may require professional servicing. |
Atlas Copco G5-145T 208-230/460 Air Compressor
| Key Features Power: 7.5 HP CFM: 26.1 CFM Pressure: 145 PSI Tank Size: 53 Gallons | Price Range: $6,000 – $7,000 |
| PROS -Delivers reliable airflow (26.1 CFM) at 145 PSI, ideal for light-to-medium duty tasks. -Optimized to reduce power consumption while maintaining strong performance, saving on long-term operating costs. -The oil-injected rotary screw design ensures durability and requires minimal maintenance. -Integrated 53 gallon air storage tank eliminates the need for separate air tanks. -Space-saving layout makes it easy to install in tight spaces. -Operates quietly (~66 dB(A)), providing a quieter work environment. -Supports 208-230/460 V, making it adaptable to various electrical setups. | CONS -Higher upfront cost than smaller piston compressors, which may be a concern for shops with tight budgets. -While low-maintenance, periodic servicing (such as oil changes) may require professional help. -7.5 HP and 145 PSI may be overkill for shops with very low air consumption needs. -While compact for its class, it may still be too large for shops needing extremely compact or portable solutions. |
Atlas Copco G7-125T 208-230/460 Air Compressor
| Key Features: Power: 10 HP CFM: 39.2 CFM Pressure: 125 PSI Tank Size: 120 Gallons *Also available with integrated air dryer and 150 PSI rating | Price Range: $8,000 – $10,000 |
| PROS -Best-in-class reliability and low power consumption for consistent, high-efficiency air delivery. -Automatically adjusts to changing air demand, optimizing energy use and reducing costs. -Low operating costs thanks to reduced power consumption. -Integrated 120 gallon air storage tank eliminates the need for separate air tanks. -Powerful yet space-saving, perfect for shops with limited room. -Built for continuous operation with minimal maintenance required. -Quieter operation (~66 dB(A)) compared to other industrial compressors. | CONS -Higher initial price than smaller or piston compressors. -Routine servicing (oil changes, filters) may require professional assistance. -Too powerful for shops with minimal air needs. -Larger than portable models, not ideal for extremely tight spaces. |
Atlas Copco G11-125T 208-230/460 Air Compressor
| Key Features: Power: 15 HP CFM: 52.8 CFM Pressure: 125 PSI Tank Size: 120 Gallons *Also available with integrated air dryer and 150 PSI rating | Price Range: $9,000 – $11,000 |
| PROS -With 52.8 CFM at 125 PSI, the G11 is ideal for medium-duty applications requiring consistent, high-flow air. -Optimized for low power consumption, helping reduce long-term energy costs without sacrificing performance. -Oil-injected rotary screw technology minimizes wear, reducing maintenance needs and ensuring dependable operation. -Integrated 120 gallon air storage tank eliminates the need for separate air tanks. -Despite its high output, the G11 has a relatively compact footprint, making it easy to install in shops with limited space. -Operates at around 66 dB(A), providing quieter performance compared to other industrial compressors. -Accommodates 208-230/460 V, making it adaptable to a variety of shop electrical setups. | CONS -The G11’s initial price is higher than smaller, less powerful compressors, which might be a concern for shops on a tight budget. -While low-maintenance, routine servicing like oil changes and filter replacements may require professional assistance. -The G11 is designed for medium-to-high air demand, making it excessive for shops with minimal air consumption. -While compact for its output, it may still be too large for extremely tight spaces or portable needs. |
Atlas Copco G15-125T 208-230/460 Air Compressor
| Key Features: Power: 20 HP CFM: 63.4 CFM Pressure: 125 PSI Tank Size: 120 Gallons *Also available with integrated air dryer | Price Range: $11,000 – $12,000 |
| PROS With 63.4 CFM at 125 PSI, the G15 is ideal for demanding applications requiring continuous high airflow, like multiple tools or equipment. 100% continuous duty cycle at high ambient temperatures (up to 46°C/115°F), making it highly reliable for tough working conditions. Integrated 120 gallon air storage tank eliminates the need for separate air tanks. Its small footprint allows for easy placement against walls or in corners, ideal for shops with limited space. The G15 is designed to deliver strong performance with reduced energy consumption, lowering long-term operating costs. The oil-injected rotary screw design minimizes wear and tear, resulting in low maintenance needs. At ~66 dB(A), it operates relatively quietly for a high-output compressor, contributing to a better work environment. Compatible with 208-230/460 V systems, making it flexible for various shop setups. | CONS The G15’s high-performance features come with a higher initial investment compared to smaller compressors. Routine maintenance (such as oil changes and filter replacements) is still necessary and may require professional service. The G15 may be excessive for smaller shops or light-duty applications with minimal air needs. |
Each model has distinct advantages depending on your shop’s size, air consumption needs, and budget. By considering your specific requirements, you can find the perfect Atlas Copco compressor to keep your automotive shop running smoothly and efficiently.
Still need help choosing the best air compressor for your facility? HTE Technologies is ready to answer your questions.
