Galaxy PH 256/50 AAA Printhead

The Galaxy PH 256/50 AAA Printhead is a 50 pL inkjet printhead designed for high-quality jetting performance. It offers complete fluid support and signal processing capabilities suitable for a wide range of jetting fluids at resolutions up to 600 dpi. The printhead features four electrically independent piezoelectric slices, each with 64 addressable channels, totaling 256 jets arranged in a single line with 0.010 inch spacing between nozzles. It also includes serial-to-parallel converters to select which jets to fire, enabling precise control of ink droplets.

Galaxy PH 256/50 AAA Printhead features:

• 256 individually addressable inline nozzles arranged in a single line with 0.010 inch spacing.

• Calibrated drop size of 50 picoliters with an adjustment range of 45-55 picoliters.

• Excellent jet straightness and channel-to-channel uniformity.

• High-frequency continuous operation capable of up to 20 kHz.

• Fluid support with an on-head reservoir that has an integrated filter and fluid level sensor.

• Pneumatic interface allowing an external deaeration vacuum (lung technology) to prevent fluid weeping and air ingestion.

• Thermal control with a heater cartridge and thermistor temperature sensor.

• Compatible with various jetting fluids including organic solvents, UV curables, and aqueous.

• Fluid viscosity range of 8 to 20 cP at jetting temperature.

• Electrical interface uses RS-422 protocol.

• Operating temperature up to 90°C and designed for long service life.

• Printhead physical size approximately 65 mm x 102 mm footprint, nozzle line length of 64.8 mm, and weight of about 640 g.

This Galaxy PH 256/50 AAA Printhead delivers highly precise droplet control and reliability, making it suitable for demanding industrial printing tasks where quality and consistency are critical.