Atlas Copco GX vs Quincy QGS: Rotary Screw Compressors Compared

Q: Which compressor is quieter—Atlas Copco GX or Quincy QGS?

Atlas Copco GX is quieter, typically operating around 62–66 dBA.

Q: What’s the oil change interval for each model?

GX: ~4,000–6,000 hours. QGS: 8,000 hours with synthetic lubricant.

Q: Can both compressors run continuously?

Yes, both are rated for 100% duty cycle.

Q: Which model has better energy efficiency?

Atlas Copco GX, thanks to IE3 motors and optional VSD technology.

Q: Is the Quincy QGS suitable for large facilities?

Yes, it scales up to 100 HP and offers tank/dryer configurations.

Q: What kind of control panel does each model use?

GX: Elektronikon® digital controller. QGS: Basic digital panel (20+ HP).

Q: Which compressor is easier to maintain?

Quincy QGS, with single-panel access and longer intervals.

Q: What’s the warranty difference?

QGS offers a 5-Year True Blue Warranty with authorized startup; GX typically offers 1–2 years standard.

Q: Can I install these compressors myself?

Professional installation is recommended for both, especially to activate warranties.

Q: Which model is better for CNC applications?

Both are suitable, but GX offers quieter operation and tighter pressure control.

Introduction

When choosing a rotary screw compressor for industrial use, two names consistently rise to the top: Atlas Copco GX and Quincy QGS. Both are engineered for quiet, continuous-duty operation and are trusted by manufacturers, CNC shops, and automotive facilities worldwide.

The Atlas Copco GX series is known for its energy efficiency and advanced controls, while the Quincy QGS series offers rugged reliability and simplified maintenance. This comparison breaks down their features, strengths, and ideal use cases to help you make the right investment.

Side-by-Side Feature & Specification Breakdown

Feature	Atlas Copco GX	Quincy QGS
Horsepower Range	3–15 HP	5–100 HP
Duty Cycle	100% continuous	100% continuous
Noise Level	~62–66 dBA	~68–72 dBA
Lubrication	Synthetic oil, ~4,000–6,000 hr interval	Synthetic oil, 8,000 hr interval
Mounting Options	Tank-mounted with dryer	Base, tank, or tank with dryer
Motor Type	IE3 efficiency motor	TEFC motor, IP55 rated
Startup Method	Direct start or soft start	DOL (5–15 HP), Wye-Delta (15+ HP)
Control Panel	Elektronikon® digital controller	Basic digital panel (20+ HP)
Warranty	1–2 years standard, extended available	5-Year True Blue Warranty (with authorized startup)

Strengths & Weaknesses

🔹 Atlas Copco GX

Strengths:

Advanced control system (Elektronikon®)
Lower noise levels
High energy efficiency with IE3 motors
Compact, integrated design

Weaknesses:

Higher upfront cost
Shorter oil change intervals
Limited horsepower range

🔹 Quincy QGS

Strengths:

Broad HP range (5–100 HP)
Longer service intervals (8,000 hours)
Rugged, technician-friendly design
Strong warranty with authorized startup

Weaknesses:

Slightly louder operation
Basic control interface on lower HP models
Fewer energy optimization features

Verdicts by Category

Category	Winner	Why
Price	Quincy QGS	More affordable across most HP ranges
Noise Level	Atlas Copco GX	Quieter operation, better for indoor use
Energy Efficiency	Atlas Copco GX	IE3 motors and VSD options
Maintenance Interval	Quincy QGS	8,000-hour synthetic oil standard
Ease of Use	Atlas Copco GX	Advanced controls and diagnostics
Durability	Quincy QGS	Rugged build, longer service life
Best for Small Shops	Atlas Copco GX	Compact, quiet, efficient
Best for Large Facilities	Quincy QGS	Scalable HP range, robust design

Buyer Guidance: Who Should Choose What?

Choose Atlas Copco GX if you:

Run a small-to-mid-size shop
Need ultra-quiet operation
Value energy savings and advanced controls
Prefer compact, integrated systems

Choose Quincy QGS if you:

Operate a mid-to-large industrial facility
Need flexible mounting and HP options
Want longer service intervals and rugged reliability
Prefer simplified maintenance and strong warranty coverage

Atlas Copco GX vs Quincy QGS FAQ

Which compressor is quieter—Atlas Copco GX or Quincy QGS?

What’s the oil change interval for each model?

Can both compressors run continuously?

Which model has better energy efficiency?

Is the Quincy QGS suitable for large facilities?

What kind of control panel does each model use?

Which compressor is easier to maintain?

What’s the warranty difference?

Can I install these compressors myself?

Which model is better for CNC applications?

Interesting Fact

Atlas Copco’s Elektronikon® controller can adjust motor speed and monitor system health in real time—reducing energy costs and preventing failures.

Lesser-Known Fact

Quincy QGS compressors use IP55-rated TEFC motors, making them ideal for dusty or washdown environments where standard motors may fail.

Conclusion: Which Rotary Screw Compressor Should You Choose?

If you prioritize quiet operation, energy efficiency, and smart controls, the Atlas Copco GX is a premium choice for small-to-mid-size facilities. If you need rugged reliability, longer service intervals, and scalable horsepower, the Quincy QGS delivers industrial-grade performance at a competitive price.

Which one fits your workflow best? Drop a comment below and share your experience. Tag us on LinkedIn or Reddit to join the conversation—and help others choose the right compressor for their needs.