Frequently Asked Questions
What brands do you carry?
We carry industrial compressed air equipment from Ingersoll Rand and Rolair. Our catalog includes reciprocating compressors, rotary screw compressors, variable speed drive (VSD) systems, refrigerated and desiccant air dryers, inline filters, receiver tanks, and accessories ranging from 2 HP to 50 HP.
What's the difference between fixed speed and variable speed (VSD) compressors?
A fixed speed compressor runs at a constant RPM and is either fully on or fully off. It's best for applications with consistent, steady air demand. A variable speed drive (VSD) compressor adjusts motor speed to match real-time air demand, which can reduce energy costs by 30-50% in applications with fluctuating usage. We carry both types from Ingersoll Rand, plus fixed speed reciprocating models from Rolair.
What's the difference between reciprocating and rotary screw compressors?
Reciprocating (piston) compressors use pistons to compress air and are ideal for intermittent duty cycles — auto shops, small manufacturing, woodworking. They're available from both Ingersoll Rand and Rolair in our catalog. Rotary screw compressors use twin helical rotors for continuous-duty operation and are better suited for facilities that need constant air supply — production lines, large manufacturing, food processing. We carry Ingersoll Rand rotary screw models from 5 to 50 HP.
Do I need an air dryer?
In most industrial applications, yes. Compressed air contains moisture that can damage pneumatic tools, cause corrosion in piping, and contaminate products. A refrigerated dryer is sufficient for most general industrial applications. Desiccant dryers are needed for applications requiring very dry air (painting, food/beverage, pharmaceuticals). We carry Ingersoll Rand refrigerated and desiccant dryers sized to match any compressor in our catalog.
How do I know what size compressor I need?
Compressor sizing depends on three factors: CFM (how much air your tools/equipment need), PSI (the pressure required), and duty cycle (how often the compressor runs). Add up the CFM requirements of all tools that may run simultaneously, then add 20-30% for future growth. If you need help, submit your requirements or call us at (727) 900-5977 and we'll recommend the right system.
How does shipping work?
Caldwell Air ships only to addresses within the 48 contiguous United States. Many large items ship directly from the manufacturer or authorized distribution center via LTL freight, while smaller items may ship by parcel carrier.
Shipping terms applicable to each order are those displayed on the product page and at checkout. When free standard shipping or freight is advertised, standard delivery is included in the product price and no separate standard shipping charge will be added at checkout. If a separate shipping charge applies to a product, it will be clearly disclosed before the order is submitted. Optional or special delivery services, including liftgate, residential, limited-access, inside delivery, or other carrier accessorial services, may be subject to additional charges.
Can I get a custom quote for a large order?
Absolutely. If you're outfitting a new facility or need multiple pieces of equipment, submit a quote request or call us at (727) 900-5977. We can provide package pricing for complete compressed air systems including compressor, dryer, filtration, piping, and receiver tank.
What warranty do your products come with?
All products sold by Caldwell Air carry the applicable original manufacturer warranty. Warranty terms vary by manufacturer, product line, model, configuration, component, and any required installation, start-up, or maintenance conditions. Caldwell Air will assist customers with warranty claims, while warranty approval, coverage, remedies, and timing are determined by the manufacturer or supplier. See our Warranty Information page for full details and product-specific guidance.
What is your return policy?
All sales are final unless Caldwell Air approves a return or cancellation in writing. Do not return any product without prior authorization from Caldwell Air.
To initiate a return, contact us at (727) 900-5977 or sales@caldwellair.com.
If a return is authorized, we will provide the specific return instructions and authorized return destination applicable to that product.
Approved returns may be subject to restocking or cancellation charges and other applicable conditions. For full details see our our Shipping & Returns policy.
Still have questions?
Call us at (727) 900-5977 (Mon–Fri, 8AM–5PM EST) or email sales@caldwellair.com. We respond within one business day.