Select Coat-SC-350-SC-300-NordsonASYMTEK.pdf - 第3页

Page 3 of 4 SC - 300 Mult i - Mode Specifications Applicator P a rameter Bead M ode Monof ilame nt M ode Swi rl M ode Typical Fluid Dispense P res sure 7.0 - 413 kPa (1.0 - 60 psi) 7 .0 - 413 kPa (1.0 - 60 psi) 60- 172 k…

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SC-350 Select Spray Specifications
Applicator Parameter
SC-350 Select Spray
Mode
Select Spray
Typical Pattern Width
4 to 11 mm
(0.16 to 0.45 in.)
Fluid Viscosity
30 to 3500+ mPa·s
(30-3500+ cPs)
Typical Application Thickness
13 to 75 µm
(0.50 to 3 mils)
Edge Tolerance
± 1.0 mm (0.040 in.)
Transfer Efficiency
95-99%
Coating Velocity
127 to 381 mm/sec
(5 to 15 in./sec)
NOTE: This chart is for comparison purposes. Film thickness, edge
tolerance, and coating velocity are dependent on the type of fluid.
Application requirements and fluid properties affect results.
SC-350 Select Spray – Optimized to Atomize High-Viscosity Coating Fluids
With the SC-350, the air assist function is optimized to deliver significant edge tolerance, fluid viscosity, and coating
velocity improvements.
The SC-350 applies less air pressure to achieve a tighter edge tolerance providing increased selectivity and control
near keep out zones and reduced “cobwebbing” of solvent-based fluids. Lower air assist pressure improvements
provide added flexibility within your process parameters – achieving thinner coating results at faster coating speeds
for a wide range of fluid viscosities.
SC-350 Select Spray
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SC-300 Multi-Mode Specifications
Applicator Parameter
Bead Mode
Monofilament Mode
Typical Fluid Dispense Pressure
7.0-413 kPa
(1.0-60 psi)
7.0-413 kPa
(1.0-60 psi)
(10-25 psi)
Air Pressure
No air
Low
Pattern Width
2.5 to 6.4 mm
(0.10 to 0.25 in.)
6.4 to 13 mm
(0.25 to 0.50 in.)
Fluid Viscosity
30 to 3500+ mPa·s
(30-3500+ cPs)
30 to 3500+ mPa·s
(30-3500+ cPs)
(30-3500+ cPs)
Application Thickness
125 to 500 µm
(5 to 20 mils)
100 to 300 µm
(4 to 12 mils)
(0.50 to 3 mils)
Edge Tolerance
± 0.75 mm (0.030
in.)
± 1.0 mm (0.040
in.)
± 2.0 mm (0.080 in.)
Transfer Efficiency
100%
Up to 100%
Coating Velocity
254 to 508 mm/sec
(10 to 20 in./sec)
127 to 254 mm/sec
(5 to 10 in./sec)
(5 to 15 in./sec)
NOTE: This chart is for comparison purposes. Film thickness, edge tolerance, and coating velocity are
dependent on the type of fluid. Application requirements and fluid properties affect results.
SC-300 Multi-Mode – Three Modes of Operation
Bead: A stream of fluid is applied to the circuit board in areas where components are very close to non-coating or
keep-out areas, or extra fluid is required for protection of high-impedance areas. The bead may also be used as a spot
command for single coating of a single test point or component.
Monofilament: This pattern is created by controlling the fluid pressure and fluid flow passing through the nozzle.
Auxiliary air circulating through the air passage strikes the fluid at a precise angle, causing it to spin on its axis and
form a conical, looping pattern. The monofilament pattern is ideal for dispensing broad pattern widths, while
maintaining good edge definition, resulting in faster cycle times.
Swirl: The swirl pattern is achieved by increasing air pressure and lowering flow settings. Angled jets impinge air upon
the pressurized fluid exiting the nozzle creating a conical, swirling pattern. The swirling action helps maintain pattern
shape resulting in excellent width control. Because the air jets cause slight atomization of the fluid, extremely thin film
builds are possible. The mode is ideal for applications where moderate selective coating and thin film builds are
required.
Bead
Swirl
Monofilament
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Select Coat
®
Applicator Options
Dual-Simultaneous Programmable Pitch
Dual Simultaneous – Additional Benefits
With the dual-simultaneous configuration, the Select Coat
®
SL-940 system can coat two
parts at the same time. Processing two parts in parallel significantly improves the
throughput, while maintaining high yield. The conformal coating process time is reduced
by 50%, allowing throughput performance to be significantly increased – especially when
conducting a high takt time conformal coating process with few overhead movements.
Two of the same applicators are installed and operate simultaneously. When there is no
need for simultaneous conformal coating, EasyCoat
®
6 software allows the programmer
to disable the second applicator.
• Coat two parts at once – reducing overall cycle time
• Enable the second applicator as needed
• Fully adjustable pitch
Four-Position Tilt – Additional Benefits
Quick response time improves throughput – the Four-Position Tilt option features
the standard vertical position and tilts the applicator at 30 degrees in four
positions: right, left, forward, and backward in 90 degree increments.
Through EasyCoat
®
6 software, a programmer can set and modify specific tilt and
rotate parameters for each coating element.
Vertical
Tilt Right
Tilt Left
Tilt Forward
Tilt Backward
Nordson ASYMTEK
+1.760.431.1919
2747 Loker Avenue West
Carlsbad, CA USA 92010-6603
Published 2018-03-21 Updated
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