The Seiko SPT510 50pl (IRH1513U-3522) is a genuine original drop-on-demand piezoelectric printhead for high-volume grand-format solvent, UV, and oil-based printing. With 510 active nozzles across a 71.8mm print width, 720 dpi maximum resolution, 6–8 kHz firing frequency, and steel-plate nozzle protection delivering 4–5× the service life of standard 128-nozzle heads, it is positioned specifically for high-throughput advertising and signage production. Every SPT510 50pl we sell at Digiprint USA is 100% genuine original Seiko Instruments (SII) Japan. 35pl vs 50pl — confirm your variant before ordering. The SPT510 is available in both 35pl (IRH1513D) and 50pl (IRH1513U-3522) variants. This listing is the 50pl variant. The two variants are not interchangeable — they have different part numbers, different ink system configurations, and different compatible printer models. Always confirm your current installed head's part number before ordering. Technical Specifications Specification Detail Model Seiko SPT510 50pl — IRH1513U-3522 Technology Drop-on-demand piezoelectric Active nozzles 510 Nozzle pitch 141.1 µm (approx. 1/180 inch) Active print width 71.8 mm Native resolution 180 dpi Max resolution 720 dpi Drop volume 50 pl Firing frequency 6 – 8 kHz (ink and system dependent) Printing speed 4.2 m/s Nozzle protection Steel-plate guard — 4–5× service life vs standard 128-nozzle heads Ink compatibility Solvent, UV-curable, and oil-based inks Orientation Downward, horizontal, and vertical Ink priming By positive pressure Dimensions 126.3 × 99.2 × 32.9 mm Dry weight Approx. 200 g Positioning Datum points for X, Y, and Z axis alignment Country of origin Japan (Seiko Instruments / SII) Warranty Manufacturer warranty included Condition 100% genuine original Seiko, brand new SPT510 35pl vs 50pl — Which Do You Need? Spec SPT510 35pl — IRH1513D SPT510 50pl — IRH1513U-3522 (this listing) Drop volume 35 pl 50 pl Part number IRH1513D-3322 / IRH1513D-3311 IRH1513U-3522 Primary use Higher detail output at moderate speed High-volume advertising, high-throughput production Interchangeable? No — different part numbers, ink systems, and printer compatibility. Confirm your current head's part number before ordering. Steel-Plate Nozzle Protection The SPT510's steel-plate nozzle guard is a key durability differentiator versus earlier grand-format heads. The guard physically shields the nozzle array from head strikes, media debris, and cleaning pad abrasion — the primary causes of premature nozzle failure in heavy-duty production environments. Seiko's data shows the SPT510 delivers 4–5× the operating life of standard 128-nozzle heads, making it a significantly lower cost-per-print option for high-volume advertising print shops running multiple shifts. Compatible Printers This SPT510 50pl (IRH1513U-3522) printhead is compatible with the following printers: Acetek TC-3208GD CrystalJet CJ-4000 CrystalJet CJ-6000 Icontek TW-3308MS Infiniti Challenger FY-3208N Infiniti Challenger FY-3208Q Infiniti Challenger FY-3278N Infiniti Challenger FY-3278Q Phaeton UD-3278K Phaeton UD-3278Q SID Xpress 320 Xenons X5310 Xutu XTS 1000 Xutu XTS 2000 Contact our team with your printer make, model, and current head part number to confirm SPT510 50pl (IRH1513U-3522) compatibility before ordering. Warranty Notice Due to the sensitive nature of industrial inkjet printhead components, we cannot accept returns, exchanges, or refunds once the printhead has been installed. All sales are final. Confirm the 35pl vs 50pl variant and part number before ordering. Why Buy from Digiprint USA • 100% genuine original Seiko SPT510 50pl IRH1513U-3522 — not compatible, not refurbished • Manufactured in Japan by Seiko Instruments (SII) — sealed original packaging • In stock in Doral, Miami FL — same day shipping before 2PM EST • Ideal for Latin American grand-format production shops using Miami freight forwarders • Free technical support — we confirm 35pl vs 50pl variant and correct SPT510 part number for your printer before you order View our full range of genuine Seiko industrial printheads stocked by Digiprint USA. Frequently Asked Questions What is the difference between SPT510 35pl and SPT510 50pl?Both have 510 nozzles, 180/720 dpi, 71.8mm print width, and steel-plate nozzle protection. The primary difference is drop volume: the 35pl (IRH1513D) delivers finer ink deposition suitable for higher-detail output; the 50pl (IRH1513U-3522, this listing) is positioned for high-volume advertising production requiring faster ink laydown. They are not interchangeable — each has a different part number and is specified by the OEM printer manufacturer for a distinct ink system configuration. Confirm your current installed head's part number before ordering. Why does the SPT510 last 4–5 times longer than a 128-nozzle head?The SPT510's steel-plate nozzle guard physically shields the nozzle array from head strikes, media debris, and cleaning station contact — the primary causes of premature nozzle failure in grand-format production environments. Combined with Seiko's piezo jetting design, this makes the SPT510 significantly more cost-effective per square metre of output in high-shift production scenarios. Is this printhead compatible with eco-solvent inks?Yes — the SPT510 50pl is compatible with solvent (including eco-solvent), UV-curable, and oil-based inks. It is not designed for water-based aqueous inks. Always confirm ink compatibility with your printer's service documentation before installing. Do you ship Seiko SPT510 50pl printheads to Latin America?Yes — same day shipping from our Doral, Miami FL warehouse. Our Miami location is ideal for Latin American grand-format advertising production shops using freight forwarders in the Doral area.
