Seiko SPT510 35PL Printhead IRH1513D-3322

The Seiko SPT510 35PL Printhead (model IRH1513D-3322, also listed as IRH1513D-3311) is the genuine original Seiko Precision Technology drop-on-demand piezo printhead for grand-format eco-solvent and solvent production printers. With 510 active nozzles, a 35 pl drop volume, and a maximum resolution of 720 dpi, the SPT510 was the benchmark grand-format printhead for high-volume outdoor signage and banner production — used by Infiniti Challenger, Gongzheng, Icontek, Speedvision, VUTEk QS, and many more grand-format platforms. Its steel-plate nozzle protection gives it a documented service life 4–5 times longer than competing printheads of its generation. The IRH1513D-3322 supersedes the earlier IRH1513D-1321 version. Every IRH1513D-3322 we stock at Digiprint USA is 100% genuine original Seiko — not aftermarket, not compatible, not refurbished.

Technical Specifications

Specification	Detail
Seiko Model	IRH1513D-3322 / IRH1513D-3311 (supersedes IRH1513D-1321)
Platform	Seiko SPT510 — Seiko Precision Technology drop-on-demand piezo
Active nozzles	510
Native resolution	180 dpi
Maximum resolution	720 dpi
Drop volume	35 pl (fixed)
Firing frequency	6 – 8 kHz
Linear print speed	0.49 m/sec @ 360 dpi
Interface	Proprietary parallel — 30 pins
Nozzle protection	Steel-plate guard — 4–5× longer service life vs competing heads
Ink compatibility	Eco-solvent and solvent inks
IC driver	Updated new IC driver (vs IRH1513D-1321)
Country of origin	Japan
Condition	100% genuine original Seiko, brand new

Compatible Printers

ALE

• ALE tc72 / ALE PR72

Ataline

• Ataline UD-1806G / UD-2506G

Azon

• Azon AG 3200

CrystalJet

• CrystalJet 6000 Series

Gongzheng

• Gongzheng GZHS-3204DS

• Gongzheng GZK-3206-AS

• Gongzheng GZK-3208-AS

Icontek

• Icontek Orionjet-GZE1806S

• Icontek TW-3304XS / TW-3306HZ / TW-3308HZ

• Icontek TW-3308A / TW-3308D / TW-3308MS / TW-3308X

Infiniti / FY-Union Challenger

• Infiniti Challenger FY-3204H / FY-3206G / FY-3206S

• Infiniti Challenger FY-3208G / FY-3208H / FY-3208HF

• Infiniti Challenger FY-5008GS

Myjet

• Myjet 3208

Speedvision

• Speedvision SpeedJet Pro 180 / 250 / 320

VUTEk

• VUTEk QS220 / QS2000 / QS3200 / QS3220

Zhongye

• Zhongye SK-1604

The SPT510 35PL is used across a broad range of Chinese grand-format production printers. If your printer is not listed, contact us — the SPT510 platform is widely deployed and your printer may use this head under a different model designation.

35 PL vs 50 PL — Choosing the Right SPT510 Drop Size

The Seiko SPT510 is supplied in two drop size variants. Both use the same 510-nozzle platform and are not interchangeable:

Variant	Drop Size	Max Resolution	Best For
SPT510 35PL (this listing)	35 pl	720 dpi	Higher image quality — finer detail, smoother gradients
SPT510 50PL	50 pl	360 dpi	Higher production speed — heavy ink laydown, billboard output

The 35PL variant achieves finer dot placement and smoother tonal gradients — preferred for backlit graphics, poster-quality outdoor print, and any application requiring visible image quality at close viewing distances. The 50PL variant jets a larger drop at higher speed, suited to billboard-scale production where viewing distance is long and throughput is the priority. Your printer's specification sheet or existing printhead label will confirm which variant your machine requires.

IRH1513D-3322 vs IRH1513D-1321 — What Changed

The IRH1513D-3322 (this listing, also designated IRH1513D-3311 in some supplier catalogues) is the updated replacement for the IRH1513D-1321. The primary change is an updated IC driver in the head's control circuit — the same 510-nozzle array, same 35 pl drop, same physical connector and mounting. The updated IC driver improves jetting consistency and compatibility with newer printer control boards. The IRH1513D-3322 is a direct drop-in replacement for the IRH1513D-1321 with no waveform, voltage, or software changes required on installation.

About the Seiko SPT510 Platform

The Seiko SPT510 (SPT = Seiko Precision Technology) is Seiko's flagship grand-format industrial piezo printhead — a platform deployed across hundreds of Chinese-manufactured grand-format production printers for high-volume outdoor banner, billboard, and signage production. Unlike the Seiko I-Series heads used in the ColorPainter platform (which serve multi-channel arrays in narrower wide-format printers), the SPT510 is designed as the primary print engine for grand-format machines running at 3.2 m, 5 m, and wider print widths with multiple heads in parallel. The 510-nozzle count, combined with the 180 dpi native resolution and 6–8 kHz firing frequency, delivers the combination of coverage width and throughput speed that grand-format production demands. The steel-plate nozzle protection — one of the SPT510's defining characteristics — mechanically shields the nozzle array from media scratches, wiping debris, and accidental contact, which in grand-format production environments is a significant source of premature head failure on unprotected heads. This protection is responsible for the SPT510's documented 4–5× longer service life relative to earlier or competing unprotected head designs.

Applications

• Grand-format outdoor signage — high-volume banner and flex production at 3.2 m+ widths on Infiniti, Gongzheng, and Icontek platforms

• Billboard and building wrap printing — large-area solvent output at production speeds for outdoor advertising

• Backlit display graphics — 720 dpi maximum resolution for quality backlit flex and duratrans output

• Vehicle wrap and fleet graphics — eco-solvent output on cast vinyl for vehicle decoration

• High-volume retail and event signage — sustained production runs on the VUTEk QS and Speedvision SpeedJet platforms

Warranty Notice

This printhead carries a manufacturer warranty. Warranty coverage is voided by: use of non-compatible inks (non-solvent or non-eco-solvent formulations), clogged or damaged nozzles caused by incompatible inks or improper maintenance, misuse, neglect, failure to perform periodic maintenance, and damage from improper installation or third-party ink systems. Due to the sensitive nature of inkjet printhead components, Digiprint USA cannot accept returns or refunds once the printhead has been installed. All sales are final. Confirm your drop size variant (35 pl vs 50 pl) and IC driver version before ordering — contact us if unsure.

Why Buy from Digiprint USA

• 100% genuine original Seiko SPT510 IRH1513D-3322 — not aftermarket, not refurbished

• Current version with updated IC driver — not the discontinued IRH1513D-1321

• In stock in Doral, Miami FL — same day shipping before 2PM EST

• Ideal for Latin American grand-format production operations using Miami freight forwarders

• Free technical support — we confirm 35 pl vs 50 pl variant, IRH1513D-3322 vs 3311 equivalence, and IRH1513D-1321 supersession before you order

View our full range of genuine Seiko printheads and grand-format spare parts stocked by Digiprint USA.

Frequently Asked Questions

What is the difference between IRH1513D-3322 and IRH1513D-3311?
IRH1513D-3322 and IRH1513D-3311 are two designation codes used across different supplier catalogues for the same updated SPT510 35PL printhead. Both describe the current generation head with the updated IC driver. They are functionally identical — if your documentation shows either number, this listing is the correct part.

Does the IRH1513D-3322 replace the IRH1513D-1321?
Yes. The IRH1513D-1321 was the earlier SPT510 35PL version. The IRH1513D-3322 is the updated direct replacement with an improved IC driver. No configuration changes are required — it is a drop-in replacement for IRH1513D-1321 in all compatible printers.

What is the difference between the SPT510 35PL and SPT510 50PL?
Both use the same 510-nozzle Seiko piezo platform but jet different drop volumes. The 35PL jets a smaller 35 pl drop — enabling up to 720 dpi resolution and finer image quality. The 50PL jets a larger 50 pl drop at higher speed — suited to high-throughput billboard production where print quality at close viewing distances is less critical. They require different waveform settings and are not interchangeable. Check your printer's spec sheet or your existing head's part number label to confirm which variant you need.

What does "SPT" stand for?
SPT stands for Seiko Precision Technology — Seiko's industrial inkjet printhead product line, distinct from the I-Series heads used in the ColorPainter wide-format platform. The SPT510's "510" designates the number of active nozzles. The SPT line also includes the SPT1020 (1020 nozzles, doubled by stacking two SPT510 rows) used in higher-throughput grand-format configurations.

Do you ship the Seiko SPT510 to Latin America?
Yes — same day shipping from our Doral, Miami FL warehouse. Our location is ideal for Latin American grand-format production operations, Infiniti and Gongzheng service centres, and outdoor signage producers using freight forwarders in the Doral area.