LEWCO Conveyor Ovens set the industry standard for heavy-duty construction in a cost effective, continuous process oven. A variety of pre-engineered, standard conveyor designs, including belt, roller, chain & slat, as well as overhead conveyor, allow LEWCO to provide a solution to suit almost any continuous oven application in a variety of industries.
LEWCO conveyor oven applications include:
LEWCO Conveyor Ovens are available in both electric and direct fired natural gas heat. Optional heating mediums include steam, hot water, and hot oil. These ovens are available in four temperature ranges: 350° F, 500° F, 650° F, and 800° F. Vertical down air flow is standard although dual or horizontal air flow patterns are also available. Standard conveyor ovens are provided with 24” load and unload areas at both entrance and exit end of the oven. Note that these can be lengthened upon request.
Conveyor oven control systems include variable speed conveyor drives that can be operated in either continuous or timed Index mode. Data loggers, programmable logic controllers (PLC) and operator interface terminals (OIT) are also available for increased functionality. Single point process temperature controllers and a redundant high limit controller are standard.
Conveyor Oven Model Number Scheme
Three standard conveyor types are offered and most ovens are available in standard work space sizes: 12” increments of width and length, and 6” increments of height. Standard models from 12” wide x 60” (5 ft.) long x 6” high up to 60” wide x 360 “ (30 ft.) long x 36” high.
The lowest cost and most common type of conveyor oven, belt conveyor ovens are extremely versatile and best suited to relatively light loads. In addition to standard wire mesh belts, Teflon coated fiberglass reinforced belts are also available for temperatures up to 800° F. These belts are non-marring and therefore well suited to handling coatings or finished product.
View a Wire Mesh Conveyor Belt.
These conveyor ovens are suited to medium size loads or product with inconsistent conveying surfaces. Chain conveyors are available in two or three strand configurations. A plate “slat” can be attached to two chain strands, which provides a flat surface for the product or a means to mount fixtures required to support the product through the oven.
Also known as roller hearth ovens, these ovens have the highest conveyor load capacity. A series of rollers, mounted in bearings with sprockets on one end are driven by a common drive chain (or series of chain loops) connected to a gear motor. This conveyor design is also suited for zero-pressure zoned accumulation allowing product to accumulate inside the oven, independent of the rate of discharge.
View a Roller Conveyor.