The maker of a range of corrugated and solid-fiber containers had to pay special attention to the starch it used to make its products - the starch had to be hot, but not too hot. If it exceeded 140°F (60°C), it would start to cook and then gel prematurely. During the manufacturing process, tight temperature control must be maintained in the starch-holding tanks.
With more than 90 years experience, Pittsburgh-based Chromalox solved the customer’s problem by using a heat transfer system that can limit the tank’s temperature to 140°F (60°C).
In addition, the method allows the heat to spread across a large surface area, which minimizes the watt density on the temperature-sensitive starch product. Chromalox provided multiple microTherm systems, specifically the CMX-250-9, 480 V, three-phase 9 kW unit. Chromalox CMX systems typically include the following components:
- Incoloy-sheathed immersion heater.
- Cast-iron bronze-filled centrifugal pump rated 30 gal/min at 20
psi TDH with 0.75 hp motor.
- Open- or closed-loop cooling with a 3.8 ft2
- Contactor-based control panels with overloads, fusing and
- Common options such as SCR power control, digital communications and higher pumping capacity.