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Qdos Dosing Pumps Improve Production Uptime for Aluminum Powder Coating Plant

Contributed by: PumpScout Staff

Watson-Marlow Fluid Technology Group will be supplying its Qdos pump brand, known for its accurate and versatile chemical dosing pumps, to aluminum powder coating specialist France Alu Color. The dosing pumps will reduce costs and improve the reliability and safety of the aluminum coating plant’s surface treatment process.

France Alu Color coats around 1,850,000 m² (5000 tons) of aluminum every year, which requires high-quality pump equipment. The aluminum coating plant has one of the most modern vertical powder coating lines in France and operates under the Qualicoat product certification scheme, demonstrating both its quality and environmental credentials.

The powder coating operation is comprised of surface preparation, chemical conversion, application, and baking, leaving little room for downtime. However, one year ago, the Head of Chemicals, Mr. Crouzet, was experiencing problems with acid etching and chemical conversion after the existing dosing pumps became repeatedly clogged. Problems included siphoning, clogged valves, and a lack of necessary precision to dose the injected chemicals. Maintaining the pumps can increase costs and safety issues, so the aluminum coating plant installed Qdos30 model dosing pumps, which paid dividends immediately.

“We installed Qdos pumps on the vertical powder coating line to dose specific chemicals at three essential points in our surface treatment process,” says Mr Crouzet. “This brought about a radical change because the siphoning problems ceased, meaning there were no longer any issues relating to excessive chemical consumption.”

Since installing the dosing pumps, France Alu Color has experienced greater flow rate precision of between 0.1 ml/min. and 30 l/hr., dramatic reduction in maintenance times, and precise dosing that results in far less waste. In addition, Qdos pumps do not have any valves, so the clogging problems that previously resulted from impurities in the chemicals are a thing of the past.

After using the dosing pumps for a full year, France Alu Color has only had to change one pump head. The aluminum coating plant is so pleased with the dry pumps that it is now dosing flocculent on the effluent treatment plant. Today, France Alu Color has eight Qdos30 dosing pumps across two facilities.

Source: Qdos