Coiled Element Heating Lid.

Lindberg/MPH is offering a replacement coiled element heating lid for Holimesy-style holding furnaces. The heating lid is complete with a steel shell and unique composite refractory lining consisting of non-wetting calcium silicate boards and multiple layers of insulating blocks and boards assembled for optimum rigidity and insulation. Bottom lid surfaces are calcium silicate boards providing a smooth and rigid sealing surface to keep the air out for less oxide formation and the heat in for higher efficiency. The steel shell jackets all exposed areas providing protection and rigidity to the ceramic refractory lining. Shell areas that are exposed to radiant heat from the bath are capped with heavy stainless steel angles for maximum life. The coil-type heating lid rated from 12-36 kW maximum input. The heating elements are designed for maximum input while maintaining long life in a high ambient temperature environment. The elements are suspended in "threaded" ceramic tube supports to prevent wire movement that can cause shorting and reduced element life. The elements are terminated in a top-mounted terminal enclosure. The lid is available in single or three-phase models and can be retrofitted to many existing furnace model sizes.