Specification :
assembly designed specifically for ink jet applications requiring multiple printheads packed
tightly together. These modules are ideal for fast moving, high performance printer carriage designs. General compatibility with a wide range of fluids makes the SE-128 AA jetting assembly extremely versatile.
Two electrically independent piezoelectric slices, each with 64 addressable channels, are combined to provide a total of 128 jets. The nozzles are arranged in a single line, at a 0.020 inch distance between nozzles.
The fluid interface and electrical connection are at the top of the jetting assembly and several mounting configurations are possible. This arrangement permits for extremely tight packing in the print process direction. The dual ported fluid interface facilitates
flushing for quick change-overs and for displacing drying fluids with inert fluids during periods of non-use.
This jetting assembly contains serial-to-parallel converters for selecting which jets to fire; all jets can be fired simultaneously or individually. By using an optional Head Interface Board, image data can be daisy-chained into one serial stream to reduce the data interface hardware requirements. A high voltage fire pulse with controlled slew rates is used to actuate the pumping chambers within each channel.
Optional temperature control components are available for precise control of fluid viscosity. Optional deaeration hardware can be provided.
Features:
30 picoliter calibrated drop size
128 individually addressable, inline nozzles
Lightweight and highly stackable
Excellent jet straightness
Excellent channel to channel uniformity
High frequency continuous operation
Permits high viscosity jetting fluids
Orientation independent
Designed for long service life
Dual ported for ease of flushing
Optional temperature control
Parameter
Number of addressable jets
128
Nozzle spacing
508 microns [0.020 in.]
Nozzle diameter
35 microns
Calibrated drop size
30 picoliters
Adjustment range for drop size
25 - 30 picoliters
Drop size variation, 1 sigma*
4%
Jet straightness, 1 sigma
3 mrad [0.17¡ã]
Nominal drop velocity
10 m/sec
Drop velocity variation, 1 sigma*
5%
Crosstalk, maximum
5%
Operating temperature range
up to 90¡ãC [194¡ãF]
Fluid viscosity range (at jetting temperature)
8 - 20 cP
Compatible jetting fluids
Organic solvents, UV curables
Maximum operating frequency
40 kHz