Bubble-free jet dispensing

Henkel says key benefits of this system are reliability and easy serviceability.  The Loctite Jet Valve dispenser is said to contain fewer wearing parts than its competitors.  It has no fluid seals to be cleaned or replaced, 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 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 a high degree of 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. 

Typically the Loctite Jet Valve system will be used for dispensing light-cured adhesives in electronic and medical device manufacture but it can also dispense other single-part adhesives or even other liquids. It has an integral heater to raise the temperature of the adhesive to a maximum of 75°C to achieve optimum viscosity and therefore efficient dispense characteristics. The overall compactness of the system’s design means minimal space is required to integrate into a production line. Three different nozzle sizes may be specified.