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The Highest Level of Automated Process for the Vacuuming Cylinders Under Intense Heat



The Result is a Higher Levels of Achieved Purity with the Least Amount of Labor



Each Unit is Shipped Assembled, Oxygen Cleaned and Pressure Tested


  • HI Bake Out Oven A
  • HI Bake Out Oven B
  • HI Bake Out Oven D

Types available

  • We offer a standard automated 12-cylinder unit designed specifically for non-flammable gases, available in either 240 Volt or 480 Volt. Other voltage options are available upon special request.
  • A vacuum pump and stand is provided with the vacuum piping for all standard High Integrity Bake Out Oven models.
  • We also offer the option of providing up to three purge gases. This allows the customer to pipe argon, helium, and nitrogen to the oven and use the same purge gas that the cylinder will be put into service.



High Integrity Bake Out Oven

For Specialty Gas Applications

The High Integrity Bake Out Oven represents the highest level of automated process for the vacuuming of cylinders under intense heat. The automation walks you through the step by step process of choosing how long to vacuum, at which level of vacuum and at what temperature. A variety of gases can be programmed to purge the cylinders at different intervals, of your choosing. The result is a higher level of achieved purity, within the cylinders, with the least amount of labor and within the most efficient amount of required time. 

Features and Benefits

  •  Two PLC controlled modes of operation are provided with the standard unit.:

    Automatic Operation in which the oven automatically proceeds to the next step of operation without operator input once a pre-determined operating parameter has been achieved.

    Manual Operation in which the operation is still controlled by the touchscreen, however the system will only perform a function specified by the operatior and will not proceed to a next step without input. This mode is particularly useful to Pre-Bake cylinders.

  • Convenient double door design provides quick and easy access for loading and unloading cylinders with no ramps to roll cylinders up or down on

  • The cylinder manifold is manufactured at Weldcoa out of all welded 2" stainless tube header and is available with flexible metal stainless steel pigtail leads for cylinder connections using high integrity face seal fittings.

  • Provided with an operator touchscreen interface with PLC for full automatic control of the entire bake out process
  • Durable, powder-coated frame 

  • Automatic valves are provided for vacuum pump isolation, purge gas and vent operations 

  • Transducers monitor the vacuum, cylinder wall temperature and purge pressure
  • The unit will also sound alarms if the vacuum is taking too long, overheating or has no purge gas available

  • We also offer the option of providing up to three purge gases. This allows the customer to pipe argon, helium, and nitrogen to the oven and use the same purge gas that the cylinder will be put into service.

  • The entire manifold assembly, including the leads, are 100% hydrostatically pressure tested to 1.5 times the MAWP, 100% nitrogen leak tested, 100% oxygen cleaned, dried, bagged to the highest safety standards

  • System is delivered assembled, oxygen cleaned, pressure tested and ready to go. Simply uncrate the unit, position it in place, anchor it to the floor and connected it to the existing plumbing.

  • Made in the USA


have a special application?

For any questions on what is offered or if you have a specialty application, please feel free to contact us at (630) 806-2000 or email us at solutions@weldcoa.com.


Deep Industry Experience

From the most basic to the most demanding, we have the products, experience and staff that will support you and your customer’s needs better than anyone in the specialty gas industry.



Weldcoa is a true USA Manufacturer

We are proud to say all of our specialty gas equipment is engineered, designed, programmed, fabricated, wired, assembled and thoroughly tested at our Aurora, Illinois USA facility. 



Top Quality Products and Staff

Weldcoa continually strives to exceed their customers’ expectations. With our vast amount of experience involved with the litany of documentation required, as well as our unmatched depth of knowledge and technical expertise, it will become quite clear that Weldcoa is the partner you are looking for.