Castair Air Compressors

10/08/2026

Keep your air lines dry with Castair's plug and play dryer packages. Call today 320-796-0851

09/30/2026

Check out Castair at the in Madison WI

09/16/2026

Stop by the BENCO Equipment booth and check out all they have to offer.
Big Iron Farm and Construction Show

07/17/2026

Achieve the lowest possible dew point with CASTAIR’s advanced regenerative desiccant air dryer systems. Designed for demanding industrial applications.

07/14/2026

Big thanks to our friends at Auto Value of Owatonna and Trinity for getting another happy customer set up with reliable compressed air.

Trinity is loaded with another industry leading Castair Air Compressors heading to its new home!

Tired of buying the cheap big box store compressors that never last? Swing in we can get you set up. From filling footballs to running a 1” impact ripping off semi tires, they have a compressor that will fit your needs.

06/04/2026

Heavy duty air compressors. Heavy duty customer service. Call today 320-796-0851

Castair, Inc., based in Spicer, MN, is a trusted manufacturer of high-quality slow-rpm air compressors since 1991. Specializing in industrial and gas-powered reciprocating and rotary screw compressors.

05/28/2026

At CASTAIR Air Compressors, we know reliability isn’t optional in today’s industrial environment — it’s essential. That’s why our Duplex Air Compressor Systems are engineered to deliver both performance and peace of mind.

Our dual 5HP duplex system features an alternator that runs one compressor at a time, maximizing efficiency and extending the life of both units. When air demand spikes, the second side automatically kicks in as backup — ensuring you never lose pressure or productivity.

Why a Duplex System Matters:

Built-in redundancy: One unit can handle the load while the other serves as a reliable backup.

Single tank convenience with dual-unit confidence.

Automatic alternation for balanced runtime and longer system life.

High-efficiency aftercoolers that remove up to

65% of moisture from the air by condensing humidity before it reaches your tools and equipment.

Clean, dry air and uninterrupted operation mean fewer maintenance headaches, reduced downtime, and better performance from your pneumatic tools and machinery.

Whether you run a manufacturing plant, automotive shop, or any facility where compressed air is critical — a duplex system gives you the uptime and reliability you deserve.

Ready to upgrade your compressed air setup?

Drop a comment or send us a message. We’re here to help you choose the right system for your needs.

03/24/2026

New product alert for Contractors, HVAC, rental and roofer customers. Higher CFM air compressors on 110volt power.

03/19/2026

"Team up strong with our friends at Auto Value Parts Stores! We're live and loaded at the North American Farm & Power Show TODAY, TOMORROW, and SATURDAY (9 AM - 5 PM) – come see why CASTAIR Air Compressors are the go-to for pros who demand cast iron durability, quiet operation, and long-haul reliability. Paired perfectly with top-shelf WIX Filters, genuine Auto Value parts, and Milwaukee Tool power – it's the ultimate shop upgrade spot!

03/09/2026

" Power up your shop, garage, or ranch with CASTAIR Air Compressors – now in stock at all Shipton's Big R locations! These heavy-duty beasts are built with all cast iron construction for long-lasting performance, slow RPM for super-quiet operation, oil-lubricated reliability, and industrial-grade components that stand up to tough jobs. From the popular Garage Series 20-Gallon 2HP models to Commercial Two-Stage units and bigger industrial options – they've got the power you need without the noise or breakdowns. Whether you're running tools, inflating, painting, or handling farm/ranch work, CASTAIR delivers dependable air every time! Stop by your nearest Shipton's Big R today:
Billings (East, West, Heights)
Lewistown
Hardin
Sheridan, WY Don't wait – stock is moving fast!