Kaeser vs. Quincy compressor: the side-by-side LA manufacturers need
Kaeser vs. Quincy is an honest comparison because Quincy is genuinely good at what it does. Quincy's reciprocating line and 5-year airend warranty have earned long-standing loyalty in plant maintenance shops. The picture changed when Atlas Copco acquired Quincy in 2014 and started consolidating parts and service economics. We sell and service Kaeser from Santa Fe Springs and lay out where each brand actually wins.
Quincy's strengths: where they excel
Quincy Compressor builds the QGS, QGV, and QGDV rotary screw lines along with a well-regarded reciprocating range. The 5-year airend warranty is a real differentiator for some buyers.
Since 2014, Quincy has been part of Atlas Copco. Parts pricing, dealer-network policy, and engineering roadmaps now sit inside the larger Atlas Copco organization.
Kaeser is independent, family-owned, and built around Sigma Profile rotor efficiency, super-silenced enclosures, and Sigma Control 2 standard across the rotary screw range.
Where Kaeser outperforms Quincy
On a multi-shift production floor, the two differences buyers feel most are specific power and sound. Both matter every day the compressor runs.
High energy cost per CFM
Kaeser's Sigma Profile rotors deliver 10-20% less energy consumption than conventional rotors of the same air delivery capacity. SK and AS series are up to 30% more efficient than the competition overall.
Compressor noise disrupting production floor operations
Super-silenced, sound-insulated enclosures with vibration-dampening panels. CSD series units are up to 10 dB(A) quieter than comparable compressors, and SFC variable-speed models run as low as 67 dB(A): quiet enough that a normal conversation can take place next to a running unit.
The Atlas Copco factor and local service
Quincy's 2014 acquisition by Atlas Copco changed the parts ecosystem and the service-network economics. Ask any Quincy dealer specifically how parts pricing and lead times have moved since 2014 and verify what the warranty actually covers.
American Compressor Company has served Los Angeles County manufacturers for more than 60 years from our Santa Fe Springs facility. We stock common Kaeser parts locally, dispatch factory-trained technicians for 24/7 emergency response, and write preventive maintenance plans without complicated long-term contracts.
Side-by-side comparison
Kaeser column highlighted. Specifications from manufacturer published data.
| Feature | Kaeser | Quincy QGS / QGV / QGDV |
|---|---|---|
| Rotor Technology | Sigma Profile | Standard helical lobe |
| Noise Level | 62-72 dB (super-silenced) | 68-78 dB typical |
| VFD Option | SFC Series | QGDV Series |
| Airend Warranty | 2 years standard | 5 years (key Quincy differentiator) |
| Corporate Parent | Independent, family-owned (founded 1919) | Atlas Copco (acquired 2014) |
| Authorized LA Service | American Compressor Co., Santa Fe Springs | Atlas Copco / Quincy network |
| 24/7 Emergency Service | Yes, local | Varies by dealer |
Which brand is right for your application?
Recommended
Choose Kaeser if:
- Energy cost over 10 years is the dominant line on your TCO model.
- You run multi-shift and noise on the production floor is a real concern.
- Local 24/7 service from Santa Fe Springs matters to your operations team.
Alternative
Consider Quincy if:
- The 5-year airend warranty is the single most important factor in your decision.
- Your shop already runs Quincy reciprocating units and parts standardization matters.
- You have a strong existing relationship with a Quincy dealer.
