Atlas Copco GA22–37 VSDS Rotary Screw Air Compressor Series (30–50 HP)

Built for energy-first compressed air

When your plant air demand rises and falls throughout the day, a fixed-speed compressor wastes power cycling and running unloaded. The Atlas Copco GA22–37 VSDS series is built to follow demand automatically—delivering the air you need while reducing wasted kWh. These oil-injected rotary screw air compressors are designed to deliver up to 60% lower energy use versus comparable fixed-speed GA models.

Next-generation efficiency: FASR motor + Neos Next inverter

At the core of the GA VSDS platform is Atlas Copco’s Ferrite-Assisted Synchronous Reluctance (FASR) motor—engineered to meet IE5 efficiency and built without rare-earth materials. Speed control is handled by the Neos Next inverter, an IP54-protected compact drive that combines the functionality of an electrical cubicle into one integrated unit.

What makes VSDS different

This series is more than “variable speed.” It’s a full redesign of the drive train and control logic to improve efficiency, durability, and uptime:

• New drive train designed according to IP66, with a new high-efficiency element
• Oil-cooled drive train components for stable, efficient operation
• No gears or belts—reducing transmission losses and mechanical wear points
• Dedicated inlet filter developed for VSDS for enhanced filtration efficiency and lower pressure drop
• Variable-speed fan for reduced cooling needs, low vibration/noise, and ERP2020 compliance
• Intelligent no-loss drain to remove condensate while minimizing compressed-air loss, with cycle/maintenance tracking and warnings

Smart temperature control that protects your system

The Smart Temperature Control System is designed to reduce condensation risk and maximize compression efficiency. The controller calculates the optimal oil temperature, and the system regulates the fan and temperature-control valve to maintain that target—helping your compressor run efficiently across changing ambient conditions.

Boost Flow Mode for short-term demand spikes

When production surges, pressure drops can shut down tools and processes. Boost Flow Mode is designed to let you temporarily exceed maximum compressor capacity without the operational and reliability penalties typical of overloading other compressors—helping you ride through short demand peaks.

Pack or Full Feature: integrated options that simplify the air room

The GA22–37 VSDS lineup is available in Pack configuration or as Full Feature units equipped with an integrated refrigerant dryer for clean, dry air. If you’re trying to simplify layout, reduce installation time, and keep air quality consistent, an integrated approach can be a big win.

Performance snapshot (ISO 1217, Annex E)

Working pressure options: 10 bar(e) (147 psig) or 13 bar(e) (191 psig)

Typical capacity ranges at 7 bar(e) / 102 psig:

• GA 22 VSDS (22 kW / 30 hp): 34.3–176.5 cfm, 63 dB(A)
• GA 26 VSDS (26 kW / 35 hp): 34.3–205.2 cfm, 66 dB(A)
• GA 30 VSDS (30 kW / 40 hp): 34.3–231.4 cfm, 67 dB(A)
• GA 37 VSDS (37 kW / 50 hp): 33.2–274.1 cfm, 71 dB(A)

Compact footprint for flexible installation

Customer benefits at a glance

• Energy savings up to 60% compared to fixed-speed GA models
• Strong performance with a 20% Free Air Delivery (FAD) increase on average versus comparable fixed-speed GA units
• “Small & silent” design, with sound levels as low as 63 dB(A) for easier placement near the point of use
• Optional heat recovery up to 80% of generated heat for hot-water applications and facility efficiency gains

Dimensions (typical)

• Pack (W×D×H): 870 × 854 × 1725 mm
• Full Feature (W×D×H): 870 × 1330 × 1725 mm

Connectivity & control for modern facilities

Every GA22–37 VSDS is built around a modern touchscreen controller for visibility, alarms/shutdown protection, and maintenance planning. Built-in connectivity supports remote monitoring so you can track performance and service needs. Multi-compressor control capabilities help coordinate multiple machines to reduce wasted energy, and industrial communication options (like OPC UA) can support integration into plant systems.

Turn waste heat into useful hot water (optional Energy Recovery)

Compressed air creates heat—lots of it. With energy recovery, you can capture and reuse up to 80% of that heat as hot water for processes or facility use. It’s one of the most direct ways to improve the total efficiency of your compressed air system, especially in facilities with steady hot-water demand.

Installation highlights (commissioning-friendly)

1. Prevent hot-air recirculation back into the compressor intake; keep intake air clean and dry.
2. Stay within intake limits (max 46°C / 115°F; min 0°C / 32°F) and keep ducting pressure drop within recommended ranges.
3. Use proper cable glands to preserve ingress protection, and do not interconnect drain pipes from different compressors before an atmospheric collector.

Where GA22–37 VSDS compressors shine

• Manufacturing, machining, and packaging lines with variable air demand
• Facilities prioritizing energy reduction, sustainability, and remote monitoring
• Plants that want compact, quiet 30–50 HP rotary screw compressed air without sacrificing reliability

Bottom line

The Atlas Copco GA22–37 VSDS rotary screw air compressor series delivers next-gen efficiency, smart protection features, and modern connectivity in a compact, quiet package—built to lower operating cost and keep production moving.