(2004), "Asymteks new SC-300 Swirl Coat applicator features three modes of operation for flexibility and control", Soldering & Surface Mount Technology, Vol. 16 No. 1. https://doi.org/10.1108/ssmt.2004.21916aab.018Download as .RIS
Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited
Asymteks new SC-300 Swirl Coat applicator features three modes of operation for flexibility and control
Asymteks new SC-300 Swirl Coat™ applicator features three modes of operation for flexibility and control
Keywords: Asymtek, Coatings
Asymtek has a new conformal coating applicator, the SC-300 Swirl Coat™ (Plate 4). 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 per cent solid coatings with viscosities from 30 to 3,500 cP. 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.
Plate 4 The SC-300 Swirl Coat™ from Asymtek
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-300s 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/ Nordsons Select Coat and Conformal Coating systems.
For further information, please visit the Web site: http://www.asymtek.com