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High speed accuracy

25 February 2015

New from Henkel is the Loctite Jet Valve system for high speed, bubble-free jet dispensing of adhesives. This is a proven method of applying small, accurate beads or drops of adhesive, at high speed in automated production, but Henkel has added features that make its version stand out from the crowd.

Two of the most important benefits of the Henkel system are reliability and easy serviceability. The Loctite Jet Valve dispenser contains fewer wearing parts than its competitors. It has no fluid seals to be cleaned or replaced, for example, so maintenance is simple and quick. Even the valve is field-repairable so there is no need for the system to be taken out of production and returned to the manufacturer.

Many of the internal components are also made from highly durable materials such tungsten carbide or ceramics contributing to the long service life of this product.

Thanks to the very small mass of the diaphragm the system is capable of very fast cycle rates. It applies up to 300 drops per second and those drops can be as small as 0.3mm in diameter. The diaphragm itself is made from an elastomer that provides the greatest chemical compatibility for a wide range of applications.

As this is a non-contact technology there is no risk of substrate damage in applications such as surface mount electronic assemblies or sensitive medical devices. The system is also able to deliver its uniform pattern of discrete beads regardless of the surface features or shape of the work piece.



 
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