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Pumping Adhesives with AODD AODD–Pumps Help to Overcome the Problems with Adhesives–Handling

| Author / Editor: Bernd Reitemeyer / Dominik Stephan

Efficient solutions for sticky problems: Handling adhesives can be quite a nuisance. Pumping a product that is gluey and pasty but must not leak under any circumstances is a challenge for a plant's equipment. Air–operated double diaphragm pumps can help to overcome these issues, as a European adhesives–specialist found out.

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It was 20 years ago that Gerrit Klaassen, left, Commercial Director of Holland Air Pumps, recommended Wilden Air–Operated Double–Diaphragm (AODD) Pumps to Henk Blom, right, Saba Dinxperlo’s Manager Technical Service, for the company’s sealant–manufacturing operation. Since then, neither Blom nor Tonny Zaarbelink, center, Technical Manager Foam Bonding at Saba, have had any reason to regret the decision to choose Wilden.
It was 20 years ago that Gerrit Klaassen, left, Commercial Director of Holland Air Pumps, recommended Wilden Air–Operated Double–Diaphragm (AODD) Pumps to Henk Blom, right, Saba Dinxperlo’s Manager Technical Service, for the company’s sealant–manufacturing operation. Since then, neither Blom nor Tonny Zaarbelink, center, Technical Manager Foam Bonding at Saba, have had any reason to regret the decision to choose Wilden.
(Picture: Wilden)

As a high–volume manufacturer of adhesives and sealants, Saba Dinxperlo has, it goes without saying, encountered some “sticky” situations over the years. Since its foundation in 1933 in the Dutch municipality of Wateringen, the company has grown into a leading independent producer of high–quality adhesives and sealants for industrial and building applications. In 1935, Saba relocated to the German border town of Dinxperlo, where its operation remain today. Over its 80 years of operation, the firm has gained a reputation as an innovator, being the first in the world to produce a water-based adhesive that stuck immediately — a development that was quite a revelation for the foam–processing industry.

Still today, Saba is among the global leaders in manufacturing and supplying a wide range of adhesives for foam–converting, mattress and furniture producers. Saba’s Business Unit Industry-Adhesives produces adhesive systems that are used around the world in the foam-processing and PVC markets. “Saba is proud to say that we are the top supplier of adhesive systems to the bedding and furniture market, and we are very focused on safety and quality for the industry,” explains Tonny Zaarbelink, Technical Manager Foam Bonding for Saba. “We produce our adhesives in the most safe way possible and transfer that safety to our customers.”

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Priority Safe Handling

As the raw materials that are used to make adhesives and sealants need to be handled carefully, operational safety has become a main consideration for Saba: The typical adhesive–production–chain sees the raw materials delivered by truck and then transferred into holding tanks. From there, a computerized system meters how much of the raw material will be needed to make a specific product. For example, if four tons of adhesive need to be produced, the computer lets the system know how much of each raw material must be transferred into the mixing and blending tanks. After the new adhesive is created, it is held in storage tanks or transferred into individual containers, 210–liter (55–gallon) barrels or 1,250–liter (330–gallon) IBCs for shipping to the end-user.

Finding The Perfect Pump

In terms of operation, the pumps used to transfer both raw materials and finished products must not leak, as this not only results in lost revenue from product waste and increased maintenance and cleanup expenses, but is also a safety hazard for plant personnel. The pumps must also offer low–shear operation as the adhesives and sealants can be damaged if exposed to excessive agitation. After experimenting with many different types of pumps through the years, including centrifugal and gear styles, and trying out numerous brands of air–operated double–diaphragm (AODD) pumps, Saba identified the perfect solution in AODD pumps from Wilden Pump & Engineering, Grand Terrace, California/USA, 20 years ago.

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