Combi steamers (also called combi-steamers, hot-air steamers, combination steam-convection ovens, or simply combi ovens) are cooking appliances typically used in professional catering or food service operations. Combi steamers can produce both dry (convection) and moist (steam) heat, and are capable of shifting between them automatically during the cooking process. It can be used to simultaneously steam vegetables or potatoes quickly and gently, while also roasting or braising meat and fish, or baking bread. The appliance is fit for many culinary applications, including baking, roasting, grilling, steaming, braising, blanching and poaching. Combi steamers expand upon standard convection ovens in that they also generate steam or a combination of steam and superheated steam. They help gastronomy-industry professionals bridge the gap between economy and menu diversity while also maintaining the desired food quality.
I want to build my own by sourcing the OEM components, fabricating the oven interior and exterior locally and assembling the oven in my central kitchen. I need help with sourcing of the components and design of the oven. I have a very well equipped very sheet metal fabrication shop and some brilliant kitchen equipment technicians. These will be strictly for in-house use. Reverse engineering an old discontinued model would be acceptable. From timeline and cost perspective it might even be preferable.
As an example of the kind of product that we want to build I have attached a particular machine's user manual and exploded view.