Manufacturing Process

At Madok, we are a completely vertically integrated manufacturer – a fancy way of saying that we manufacture 100% of our products in-house. By manufacturing onsite we control the entire end-to-end process; right from design through to packaging, which means better products for our customers.

Quality, Precision and Speed


CNC controlled, automated fabrication equipment means reliable, reproducable results in raw material fabrication. From design drawings to cutting and forming, tolerances are predictable. That means the right fit for our customers – every time.


Raw materials like steel, aluminum, copper and brass are combined to form the base of our products.


Copper tubes are mechanically bonded to the fins, that’s where heat transfer takes place.


Proper circuiting permits the process of flowing liquid through the circuits in specific ways to impact the performance to exact, pre-selected specifications.


During the brazing process, we put the finishing touches on our coils to ensure the system is complete. We use the GasFlux brazing system to minimize copper scorching and maximize finished appearance.


When a coil is immersed into one of our testing tanks, we charge it to between 325 – 600 psi of compressed air or nitrogen and test to ensure that the product is leak-free. The charge pressure is determined by the application and certification of the coil.


Before we ship your coil, we run all of our products through a rigorous final inspection check list. We then apply inspection labels and applicable certification labels.


Every coil that we build is specific to a customer, so we place products on fitted custom skids or specific boxes so the coil arrives at your door in mint condition. We constantly keep our environment in mind – so we’ve eliminated packaging materials that cannot be easily recycled at customer facilities or in the field. We can ship internationally and domestically. Our 24-hour Quick Ship program means help is on the way.


At the end of the day, your satisfaction is one hundred percent guaranteed, and all of our products are covered by Madok’s warranty.