Ejector Gun for Droplet Dispensing Precision-metered dispensing system provides accurate, repeatable application of high viscosity materials to automobile panels. Features and Benefits Pre-determined, fixed shot volumes allow for repeatability within .1cc. Modular design permits easy maintenance. Shot sizes are easily adjusted within the operating range of 2.5 to 7.5 ccs. Magnetic proximity switches sense fully-dispensed and fully-loaded conditions. Material is isolated from air supply, reducing maintenance and downtime. Three nozzle types are available to meet specific application requirements. Optional temperature conditioning maintains uniform material temperature throughout the distribution system. The Nordson ejector gun for droplet dispensing is designed to provide fast, accurate application of adhesive and mastic materials to automobile panels. The ejector gun automatically applies adhesive droplets ranging in size from 2.5 to 7.5 cubic centimeters (ccs) on hoods, doors and decklids for anti-flutter bracket attachment. Magnetic proximity switches within the gun sense fullydispensed and fully-loaded conditions. Switch actuation failure signifies a fault condition, indicating that the dispense shuttle did not reach either a filled or dispensed stop. In this case, an alarm can be activated to warn of a faulty dispense shot or gun malfunction. The ejector gun is precision metered to provide accuracy and repeatability within .1 cc. The gun is ideal for dispensing high viscosity materials including mastics and heat-cure epoxies. The modular design of the ejector gun permits easy maintenance and allows flexibility for changing assembly line configurations. The ejector gun can be configured with a variety of nozzles to meet specific application requirements. System Operation Typically, the ejector gun works in conjunction with two 55-gallon pumps with automatic changeover, which feeds a distribution manifold designed for multiple-gun dispensing. Magnetic switches are used to monitor the location of the dispense piston, verifying the gun’s dispense and reload functions. Faults can be generated if the gun does not refill or dispense. Nordson material temperature conditioning may be used to maintain uniform material temperature throughout the distribution system. By maintaining material temperature, material viscosity changes can be minimized for optimal material flow.

Ejector Gun for Droplet Dispensing For more Metering Valves Fluid Inlet information, Shim (determines shot size) speak with your Nordson representative or contact your Nordson regional office. Piston Metering Valves Proximity Sensor Fluid Inlet Shim (determines shot size) United States Amherst, Ohio +1.440.985.4000 Phone +1.440.985.1683 Fax Web: www.nordson.com Email: [email protected] Proximity Sensor Accurate, Repeatable Performance The ejector gun provides a precision-metered system for accurate, reliable dispensing with each cycle. A pre-determined, fixed shot volume is determined prior...