Rolair Two-Stage 3 HP Stationary Compressors

Rolair Two-Stage 3 HP Stationary Compressors

Rolair Two-Stage 3 HP Stationary Compressors represent the entry point into high-pressure industrial air. These units are specifically engineered for small to medium-sized shops that require the consistent 175 PSI necessary for heavy-duty automotive work, professional woodworking, and small-scale manufacturing.

By utilizing the legendary K24 two-stage pump, these compressors provide superior efficiency and cooler operating temperatures compared to single-stage units, ensuring your air tools receive a steady supply of high-pressure, dry air.

Model Breakdown

These 3 HP units are designed for 230V or 460V Three-Phase power (as indicated by the *), making them ideal for commercial facilities with industrial electrical service.

Horizontal Configurations (H-Series)

• H3330K24*: A compact 30-gallon horizontal unit. Ideal for mounting under workbenches or in service bays where overhead space is limited.
• H3360K24*: Features a 60-gallon horizontal tank, providing a larger air reserve to reduce motor cycling during continuous operations.

Vertical Configurations (V-Series)

• V3360K24*: The professional standard. A 60-gallon vertical tank that offers a significant air reserve while maintaining a small footprint—perfect for tucking into a corner.
• V3380K24*: The powerhouse of the 3 HP lineup. Paired with a massive 80-gallon vertical tank, this unit provides the maximum air storage available in this horsepower class, ensuring the motor stays cool and the tools stay powered.

The K24 Pump Advantage

The heart of these machines is the K24 two-stage pump. This pump is built to run 24/7 in a professional environment:

• Two-Stage Compression: Air is compressed in the first cylinder, cooled through a finned intercooler, and then compressed a second time. This results in higher pressures (175 PSI) and significantly less moisture buildup.
• 100% Cast-Iron Construction: Both the cylinders and the crankcase are made of high-strength cast iron for maximum heat dissipation and long-term durability.
• Splash Lubrication: A simple, reliable oil-bath system ensures all internal components remain lubricated even during heavy-duty cycles.
• Swedish Steel Valves: Equipped with high-grade stainless steel reed valves for increased volumetric efficiency and resistance to heat-related fatigue.

Core Professional Features

• Industrial Motors: High-torque, three-phase motors designed to start under load and run continuously without overheating.
• ASME Certified Tanks: All tanks are American-made, ASME-rated, and finished with a durable, corrosion-resistant powder coating.
• Safety First: Includes a totally enclosed steel belt guard, high-quality pressure switches, and safety relief valves to meet strict jobsite and shop safety standards.
• Low RPM Operation: Engineered to run at lower speeds than consumer models, which reduces shop noise, minimizes vibration, and extends the life of the pump and motor.

Quick Specification Guide