An air cargo company was facing increasing concerns with replacing structural components with the older aircraft of their fleet.

  • Parts can be fabricated in-house but must be heat treated for desired hardness and strength
  • Modern aerospace pyrometry requirements make this process more intimidating
  • Heat treating is outsourced which increases our costs due to expense of vendor and expediting fees
  • Lead time was 3-5 days when the actual “process time” for heat treating a part ranged from 9-25 hours typically
  • Due to the critical nature of the parts, we could make 2-3 of them and hope that at least one would come back that could be placed on an aircraft


The cargo company decided to in-source heat treating.Upon deciding to purchase a new oven the cargo company found four manufacturers that could provide a unit capable of processing their parts, but one, “the DELTA H TECHNOLOGIES, LLC Dual Chamber Furnace / Oven had features that made the others pale in comparison“.

  • Built specifically for aerospace pyrometry and aviation grade aluminum heat treating
  • Low temperature aging oven on top with high temperature solution heat treating furnace on bottom
  • Roll-away quench tank
  • Over / Under design features reduce the required footprint – where space is a premium in our sheet metal back shop
  • Certified working volume of 24″ wide, 16″ high and 72″ deep would accommodate 95% of our parts
  • Made in the USA


The DELTA H TECHNOLOGIES, LLC field engineer spent over a week providing full training to our staff including operators, QC personnel, and “Trainers” who became certified by DELTA H TECHNOLOGIES, LLC to train operators and QC personnel as qualified. DELTA H TECHNOLOGIES, LLC provided a very comprehensive operating manual including all forms and all certifications necessary for compliance to AMS-2750E. As a result of the investment in a DELTA H TECHNOLOGIES, LLC system, the company saw:

  • Elimination of AOG issues due to heat treating – a savings of $50K to $150K per day
  • Savings from out-sourcing and expediting fees
  • Rapid ROI of less than a year
  • Accelerating C check TAT per aircraft

It is reasonable to say that the actual ROI could be as little as one week and for what the DELTA H TECHNOLOGIES, LLC Furnace means to our company – it is priceless!


A major aircraft parts manufacturer needed a large capacity furnace for solution heat treating parts of sheet metal, lightweight and varying in size but up to 10 feet long and 3 feet wide and/or 2 feet high.


The parts manufacturer had a choice between a drop-bottom furnace and a DELTA H TECHNOLOGIES, LLC single chamber furnace. The drop-bottom furnace required a significantly large footprint as well as height in the facility. In comparison to a drop-bottom furnace, a manual quench DELTA H TECHNOLOGIES, LLC furnace had virtually no moving parts other than the fan which translated to no maintenance concerns. The drop-bottom furnace had:

  • The basket and cable system for lowering the load
  • The drive system for the tank
  • An additional crane for removing parts from the quench

The DELTA H TECHNOLOGIES, LLC furnace was also a fraction of the cost compared to the drop-bottom furnace and provided everything needed to meet production requirements for a leading manufacturer’s aircraft parts.


This system has been in production since 2010 and as a result the company has seen:

  • No lost production time due to maintenance issues
  • Consistency in meeting all TUS requirements with precision temperature control
  • 10 feet long parts being quenched in just under 3 seconds

Additionally, the system features “Aging Mode” which allows the furnace “to behave like an oven” and meet aerospace pyrometry standards down to 220°F.


A major Northwest USA MRO was losing production time and money by outsourcing their heat treating.


The company decided to in-source heat treating with a DELTA H TECHNOLOGIES, LLC furnace.


The Vice President of the company is elated stating “The DELTA H TECHNOLOGIES, LLC system delivered exactly what was promised.” With their furnace, the company has seen:

  • A system which performs flawlessly with no breakdowns
  • No lost production time or TAT due to heat treating
  • A significant decrease in heat treating expenses
  • AOGs prevented
  • Quality control improved and scrap parts / rework virtually eliminated

In just 11 months the DELTA H TECHNOLOGIES, LLC Furnace had paid for itself with heat treating expenses alone, but by preventing AOGs, minimizing TAT and improving QC the DELTA H TECHNOLOGIES, LLC Furnace had an ROI in practically no time. Due to the outstanding performance of their DELTA H TECHNOLOGIES, LLC Furnace the company is putting an identical system in a new facility in the near future as part of their SOP for aircraft aluminum sheet metal work.

Contact Ellen, VP of Sales and an industry expert to discuss the benefits of a DELTA H Heat Treating System and work with you to maximize your ROI.

Contact Ellen Today!

dual chamber furnace