Polaris PQ-512 Series Printhead


The Polaris PQ-512 AAA Printhead has 512 independent channels arranged in multiple rows at 200 dots-per-inch spacing for single color operation, or 100 dots-per-inch spacing for two colors operation.

 

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The Polaris PQ-512 AAA Printhead has 512 independent channels arranged in multiple rows at 200 dots-per-inch spacing for single color operation, or 100 dots-per-inch spacing for two colors operation.

Building upon the legendary reliability and performance of the Nova and Galaxy printheads, the Polaris PQ-512 AAA family of printheads uses field proven materials and a repairable design to deliver a long service life and consistent output. And by leveraging the inherent flexibility of the Q-Class platform, the Polaris PQ-512 AAA offers even greater jetting performance, nozzle packing density, and configuration flexibility.

The Polaris PQ-512/15 AAA, PQ-512/35 AAA and PQ-512/150 AAA printheads have 512 independent channels arranged in multiple rows at 200 dots-per-inch spacing for single color operation, or 100 dots-per-inch spacing for two color operation. The printhead is designed for binary jetting using a 15-picoliter native drop size with 8-meters per second nominal drop velocity for jetting fluids in the 8 to 20 centipoise range. Using VersaDrop jetting technology, the printhead is capable of adjustable binary operation at drop sizes up to 30 picoliters.

The Polaris PQ-512/15 AAA, PQ-512/35 AAA and PQ-512/150 AAA printheads are compatible with a broad range of inks, including UV-curable, aggressive organic solvent and aqueous inks and associated maintenance fluids.

The unique design of Polaris PQ-512 AAA Printhead Series allows each 256-channel module to be replaced and accurately registered in the field with no special tools or recalibration. An integral mounting bezel with precision registration points enables drop-in alignment with other carriage features.

Two electrical connectors contain eight serial data lines that supports fire frequencies in excess of 50 kHz.

The flexible fluid interface allows single and two-color operation. Each 256-channel module is dual ported to facilitate easy priming, flushing and ink recirculation. Heaters and temperature sensors allow precise control of ink viscosity at jetting temperatures up to 60°C.

  • 15, 35 or 150 picoliters nominal drop size
  • Resolutions up to 1000 dpi
  • 512 individual addressable nozzles
  • VersaDrop™ binary jetting capability
  • Supports UV-curable, solvent, and aqueous-based inks
  • Configurable for single- and two-color operation
  • Integral mounting bezel with precision features
  • Optimized for high viscosity jetting fluids
  • Built-in heaters and temperature sensors
  • Operation up to 60°C (140°F)
  • Simplified field repair with no special tools required
Polaris PQ-512/15 AAAPolaris PQ-512/35 AAAPolaris PQ-512/150 AAA
Active nozzles512
Print width2.64″(64.897 mm)
Nozzle spacing127 μm (single color) / 254 μm (two colors)
Drop velocity*8 m/s
Printhead weight (dry)160 g
Fluid typeUV curable, organic solvents, aqueous
Drop volume15 – 30 pl35 – 80 pl80 – 150 pl
Typical firing frequency25 – 35 kHz13 – 30 kHz10 – 20 kHz
Dimensions (WxDxH)150.25×29.5 mm