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Alloy Engineering has developed and designed batch rotary retorts and continuous rotary retorts for high-temperature applications since 1995.

Unlike OEM cast retorts, our rotary retort replacements are welded from a combination of different wrought nickel alloys and designed to operate over an extended service life – delivering consistent hardening performance required for uniform heat treating.  Importantly, this translates into cost savings and better production performance at your facility.  

Take a look at some of our product features, certifications and capabilities to see why Alloy Engineering is your number-one source for superior rotary retort solutions.  


  • Custom retort fabrications
  • Welded to ASME/AWS specifications
  • No pattern costs or restrictions
  • Extensive experience with all stainless and high-nickel alloys
  • Nickel alloys produce smooth interior surfaces without eruptions
  • Weigh less and heat up faster than cast retorts for shorter cycle times 
  • Ductile wrought materials with low carbon content and tight grain structures result in greater resistance to thermal fatigue
  • A fabricated rotary retort can be repaired or rebuilt – replacing only the damaged section
  • Quality testing, including dye-penetrant, pressure testing, x-ray and UT
  • Our ASME-CE’s will provide recommendations for longer product life

Quality and Certifications

  • ASME Section I S-Stamp
  • ASME Section VIII, Div. I U-Stamp
  • NBIC R–Stamp
  • AWS – CWI and AWS-SCWI welding inspectors
  • Level II and ASNT TC-1A certified NDE inspectors
  • In-house visual helium leak test, PT, MT, PMI and Phased Array UT
  • RT, UT, Ferrite by certified vendors
  • Fan vibration testing, balancing and shaft run-out


  • Welders qualified to ASME Section IX and AWS D1.1
  • SAW
  • GTAW
  • GMAW
  • FCAW
  • PAW
  • Manipulators
  • Robotic manipulator-SAW, GMAW
  • Strip cladding weld overlays

Engineering and Design 

  • PV Elite (ASME code calculations)
  • Finite Element Analysis (FEA) 
  • Fan design
  • SolidWorks 3D 
  • HTRI for the thermal rating of heat exchangers 


  • CNC horizontal boring mill 168” capacity 
  • Large turning 84” Ø x 37’ OAL 
  • CNC lathe 80” Ø x 14’ OAL 
  • Vertical turning lathes up to 110” capacity x 66” H
  • Milling machines, drill presses, grinders 
  • Saws 
  • Pipe end machining 

Fabrication and Prep

  • Forming and corrugation tooling 
  • Edge prep beveller 
  • Plasma table 
  • Ironworker hole puncher
  • Bentech 15T tube/pipe/rod bender 
  • Shear – 10’ capacity 
  • Press brakes to 1,000T/24’ bed/180” throat 
  • Plate rolls – 10’ Width/ 1” thickness (larger capacity available) 
  • Fan balancing machine 
  • Fan vibration testing and analysis 
  • Blasting and painting in-house to specification 

Lifting Capacity 

  • 50,000 pounds in-house 
  • 20’ under hook 
  • 20’ shipping doors 

Contact us Today

Contact us today at (440) 243-6800 to see how we can help you with a high-quality, fabricated rotary retort

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