• Customer: Manufacturer of cookware, bakeware, and kitchenware

  • Item to Clean: Cookware and bakeware

  • Contamination: Stamping oils, manufacturing lubricants

  • Cleanliness Required: Visually clean and spot-free

  • Dryness Required: 100% dry

  • Production Rate: 6-7 ft. per minute conveyor speed

  • Process Parameters: Multiple zones: Wash, halo rinse/intermediate blowoff #1, city water rinse, halo rinse/intermediate blowoff #2, etch, halo rinse/intermediate blowoff #2, D.I. rinse #1, halo rinse/intermediate blowoff #4, D.I. rinse #2, D.I. fresh water rinse, ambient blowoff, heated blowoff

  • Machine Type: Aquamaster CB-9600XE (Conveyorized Belt)

Customer Background

The customer is a major US-based manufacturer of household cookware, bakeware, kitchenware, microwave, outdoor cookware, and other consumer/restaurant products. The company sources most materials domestically, and focuses on sustainability in their manufacturing processes.


The customer needed a system to wash, acid etch, rinse, and fully dry a variety of sizes of steel, stainless steel, and aluminum cookware and bakeware ranging from 7″ to 15″ in diameter, and 3″ to 12″ high. A high production output was required.


Alliance engineered a large, 80-foot long automated aqueous parts washer to meet the high production demands of the customer. The 96″ wide conveyor belt was used to handle the various sizes and amounts of the products through multiple wash, rinse, and drying stages. An acid etch stage was included to prepare the surface for a coating operation. The air knives can be set for various product heights using the operator control interface and a pneumatic lift which raises and lowers all air knives simultaneously. The spray headers, curtains, and conveyor brushes can be pulled out of the machine for easy cleaning, maintenance, and replacement. In addition, variable-frequency drive motors were used with all pumps and blowers for maximum efficiency. There is an automatic chemical injection system for the solution stages. This machine utilizes gas heat and is able to heat up to 350°F in the heated blow-off zone for maximum dryness.

Cleaning Method

Aqueous cleaning was chosen for this application due to the large size and volume of products to be cleaned.

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