AC Compressor

AC Compressor

Decades of Experience in Single Stage Overhung Compressor Design, Analysis, Manufacture, Repair, and Service.

RMS’ accomplished staff of Single Stage Overhung Compressor experts ensure the highest degree of engineering support while offering the rapid response required to facilitate demanding compressor repairs. RMS’ experienced team of engineering experts is bolstered by the recent addition of AC Compressor legacy personnel and intellectual property.


RMS supports all types of Single Stage Overhung Compressors from every OEM • Engineered solutions tailor-made to your operating conditions


RMS acquired the AC Compressor D-Style and DH-Style single stage compressor product line in 2018, which allows RMS to provide the highest quality of service enhanced by a qualified staff of AC Compressor experts with decades of experience.


Reliability • Performance • Improved Materials • Bearings • Controls • Instrumentation • Drop In Replacement Impellers


Power • Flow • Speed • Gas Conditions • Efficiency • Pressure


Performance • Structural • Frequency • Failure • Rotordynamic • Vibration • Remaining Life • Metallurgical


  • Complete assembly and disassembly of your Compressor
  • Impeller weld repair services
  • Cleaning capabilities with on site blasting
  • On site NDT, MPI, LPI, UT, and RT capabilities
  • Complete quality documentation of services performed
  • Full customer access to RMS engineering team
  • Customer centric communication strategy with rapid response times
  • Field Service support for on site overhauls


  • Official parts provider for AC Compressor
  • Ability to support all OEMs with advanced reverse engineering capabilities
  • Impellers and Shafts
  • Backplates
  • O-Rings and Hardware
  • Bearings
  • Seals
  • Couplings
  • Inlet Nozzle
  • Guide Vane
  • Auxiliaries


  • 90 years of compressor design & manufacturing
  • Pressures from deep vacuum (1.1 PSI steam evaporator) to 600 psi (polypropylene service)
  • Impeller sizes ranging from smallest API617 12” Dia to larger 74” Dia
  • Highest head (45,000’ service), highest flow (338,000 ACFM), highest power, (24,000 HP service)
  • Experienced in specialized applications including polyethylene, polypropylene, ethylene oxide, ethylene glycol, steam, chlorinated gases, and SO2/sulfuric acid

The RMS Difference

Ryan Rottier, Director of AC Compressor Centrifugal Compressors, offers over 20 years of rotating equipment engineering experience. Ryan’s specialization in these critical machines enables RMS to offer superior engineered solutions tailored to your specific Single Stage Overhung Compressor.

“RMS’ extensive portfolio of Single Stage Overhung Compressor expertise allows us to achieve superior results for our customers. The ability to employ advanced engineering techniques and tools to reverse engineer equipment from every OEM coupled with our AC Compressor OEM capabilities allow RMS to provide our customers with the best possible service.

” Ryan Rottier-Product Director ACC-CC

Bethlehem Shop
South Houston Shop

Corporate Office
2760 Baglyos Circle
Bethlehem, PA 18020

Tel: 484-821-0702

RMS Pearland Works
14887 Hooper Rd.
Houston, TX 77047


Houston Sales Office
16676 Northchase Dr. Suite 400
Houston, TX 77060


RMS Mepco
11410 Dumas Street
Houston, TX 77034

Tel: 484-821-0702

RMS Breaux Machine Works
13842 Hirschfield Rd.
Tomball, TX 77377

Tel: 484-821-0702

Appleton Eng. & Sales
400 Ahnaip St.         Suite 200
Menasha, WI 54952

Tel: 484-821-0702