Conformal Coating Applicator offers 3 modes of operation.

Press Release Summary:




Model SC-300 Swirl Coat(TM) allows application of conformal coatings to circuit boards in bead, monofilament, and swirl operation modes with variable dispensing pressure, volume, and shape of air assist. It applies solvent-based and 100% solids coatings with viscosities from 30-3,500 cp. Exposed, zero cavity nozzle design reduces clogging, while low fluid pressure and fine control of film thickness reduces chances of inducing bubbles in coating layer.



Original Press Release:



Asymtek's New SC-300 Swirl Coat(TM) Applicator



Features Three Modes of Operation for Flexibility and Control

Carlsbad, CA - Asymtek announces the release of its new conformal coating applicator, the SC-300 Swirl Coat(TM). The Swirl Coat applicator allows manufacturers to apply conformal coatings to circuit boards by varying the volume, dispensing pressure and shape of the air assist in three modes of operation: bead, monofilament and swirl. Ideal for production environments with a high mix of circuit boards and wide variations in coating types, the SC-300 applicator applies a full range of solvent-based and 100% solids coatings with viscosities from 30 to 3500 centiPoise. The use of a multi-mode applicator eliminates the need for a second applicator in most applications, simplifying cleaning and maintenance requirements and increasing the effective work area of the system. Patents on the SC-300 applicator are currently pending.

A new, exposed "zero cavity" nozzle design reduces clogging and is easy to clean; significantly reducing production downtime. Higher flow rates and faster process times can be achieved, increasing throughput. Maintenance is simple; minimal wetted parts are easy to disassemble and remove. The SC-300's low fluid pressure and fine control of film thickness reduces the chances of inducing bubbles in the coating layer. In addition, the zero cavity nozzle reduces the exposure of materials sensitive to ambient conditions until they are applied to the substrate, making handling of moisture-cure, UV cure and solvent-based coatings much easier.

For added flexibility, one of three fluid extensions can be fitted onto the main assembly, allowing a broad selection of spray patterns. The three extensions create a straight, narrow or wide angle spray coating pattern to fit the application. Programmable software allows coating modes to be changed on-the-fly in a single board program, providing high speed coverage of a large area and tight, precise control of small dots in selective areas. The SC-300 easily integrates with Asymtek/Nordson's Select Coat and Conformal Coating systems.

Celebrating 20 years of success in 2003, Asymtek supplies award-winning automated fluid dispensing systems to customers worldwide. Specializing in semiconductor, surface mount, and electronics packaging applications, they are committed to providing total dispensing solutions and local support. Find out more on their Web site at: www.asymtek.com.

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