- On sale!
- -48%
- New
Seiko 508GS UV/Solvent 12 pL Printhead - Green Label
- Write a review
$1,150.00
$598.00
Save 48%
Premium 508-channel grayscale piezoelectric printhead with Green Label designation, optimized for UV-curable and aggressive solvent formulations.
OEM Replacement Component
Seiko Instruments 508GS Industrial Inkjet Printhead (12 pL — Green Label)
OEM Part Number: Seiko 508GS (Green Tag / Green Label) | Dual-Chemistry UV & Aggressive Solvent Greyscale Piezoelectric Line Head
Product Overview
The Seiko Instruments 508GS (Green Label / Green Tag) is an authentic original equipment manufacturer (OEM) piezoelectric drop-on-demand (DoD) industrial inkjet printhead engineered specifically for high-reliability dual-chemistry operation across UV-curable, aggressive solvent, mild solvent, and eco-solvent industrial printing platforms. Distinguished in the field by its factory-assigned green serial rating label, this premium-grade variant features internal fluid paths, seal elastomers, and manifold bonding adhesives specifically upgraded to withstand aggressive chemical solvents and reactive UV monomers without swelling, delamination, or internal pressure leakage.
Featuring an interleaved dual-row array of 508 active nozzles across an active 71.8 mm print swath, the 508GS Green Label delivers true multi-drop greyscale performance from a baseline native 12 picoliter (pL) droplet size up to 48 pL composite drops across a native 180 DPI channel pitch. Integrated internal electric heating elements and a closed-loop precision thermistor provide tight viscosity control at firing frequencies up to 28 kHz. Shielded by a bonded stainless steel nozzle guard plate, it delivers reliable jet straightness and continuous high-density graphic reproduction in high-duty industrial production.
Part Information
| Product Name | Seiko Instruments 508GS Industrial Printhead (Green Label) |
| OEM Manufacturer | Seiko Instruments Inc. (SII Printek) |
| OEM Part Number / Series | Seiko 508GS (Green Label) / IRH1513N-UV/Solvent |
| Visual Identifier | Factory Green Serial / Rank Label (indicates enhanced solvent/UV fluidic seals) |
| Component Classification | Industrial Greyscale Drop-on-Demand (DoD) Piezoelectric Inkjet Head |
| Actuation Architecture | Isolated PZT Piezo Shear-Mode Matrix with Chemically Bonded Stainless Steel Orifice Plate |
| Manufacturing Standard | Seiko Instruments Factory Certified (Japan) |
Technical Specifications
| Printhead Technology | Piezoelectric Drop-on-Demand (DoD) Multi-Drop Greyscale |
| Number of Active Nozzles | 508 addressable nozzles (interleaved dual-row configuration) |
| Native Resolution / Pitch | 180 DPI (approx. 141.1 micron nozzle-to-nozzle pitch) |
| Active Print Swath Width | 71.8 mm (2.82 inches) |
| Native Base Drop Volume | 12 picoliters (pL) native calibrated droplet |
| Greyscale Drop Range | 12 to 48 pL (up to 4–8 greyscale levels via multi-pulse sub-drop merging) |
| Maximum Operating Frequency | Up to 30 kHz binary; approx. 18–28 kHz greyscale (waveform & ink dependent) |
| Operating Viscosity Range | 8 to 15 mPa·s (cP) at operational jetting temperature |
| Temperature Regulation | Up to 50°C (122°F) via integrated internal heater and high-precision thermistor |
| Fluid Compatibility | Aggressive industrial solvents, mild/eco-solvent, UV-curable inks, oil-based fluids, specialty functional coatings |
| Fluid & Electrical Interfaces | Reinforced push-in / Luer-lock fluid fittings; high-speed multi-pin Flexible Flat Cable (FFC) connector port |
Key Features & Operational Advantages
- Green Label Chemical Hardening: Engineered with chemically inert internal bonding resins and solvent-resistant gasket seals, preventing internal channel cross-talk and manifold breakdown under continuous UV monomer and harsh solvent exposure.
- Dynamic 12–48 pL Drop Greyscale: Renders fine text, subtle photographic highlights, and smooth gradients with its 12 pL base drop, while smoothly merging pulses into 48 pL composite drops for dense, solid color saturation.
- Reinforced Stainless Steel Nozzle Shield: High-hardness orifice faceplate resists physical media head strikes, automated silicone wiper wear, and aggressive industrial solvent wiping routines.
- Active Viscosity Management: Internal electric heating elements and onboard thermistors maintain strict temperature stability, preventing drop velocity decay and dot placement deflection during long production runs.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Mandatory ESD Grounding & Power Sequence: PZT shear-mode piezoelectric crystals and onboard drive shift registers are Class 1 ESD-sensitive components. Technicians must wear a grounded ESD wrist strap and work on a static-dissipative work mat. Never connect or disconnect FFC data cables while the carriage board or main power supply is energized.
2. Green Label Verification: Ensure your printer carriage board and firmware are calibrated for the Green Label series. Record the factory voltage rank code printed on the green casing label before physical installation, and enter the correct head voltage parameters into the printer control software.
3. Storage Fluid Purge Protocol: Factory-shipped printheads contain a protective storage fluid. Flush the printhead thoroughly using filtered, compatible flush fluid (filtered to 0.2 microns) before charging with production solvent or UV inks to prevent cross-contamination and nozzle dropouts.
4. Meniscus Vacuum & Cleaning Regimen: Maintain calibrated negative pressure (typically -1.5 to -3.0 mbar) in the secondary ink tank to prevent ink dripping or air ingestion during high-speed carriage reversals. Clean the nozzle plate face solely using lint-free cleanroom polyurethane swabs moistened with approved solvent; never apply dry swabs, paper wipes, or metallic scrapers.
Compatible Models & Systems
| Printer Manufacturer | Ink Chemistry | Supported Platforms |
|---|---|---|
| CrystalJet / Infiniti / Challenger | Solvent / Mild Solvent / UV | CrystalJet 508GS Series, Challenger FY-3208GS Grand-Format Printers |
| Icontek / Twinjet | Solvent / Eco-Solvent / UV | Icontek TW-3308HD, Twinjet SJ-3208GS Series |
| Gongzheng (GZ) | Solvent / UV-Curable | GZ GZT3208GS, GZCK3208GS Dual-Chemistry Systems |
| Docan Digital / Nuocai | UV-Curable / Hybrid | Docan Hybrid and Flatbed Greyscale UV Printers |
*Model Differentiation Note: This printhead is dedicated strictly to the Seiko 508GS Green Label (UV/Solvent compatible) specification. It is NOT compatible with older binary Seiko 510 (35/50 pL) heads (SPT510) due to significant differences in waveform logic, voltage rank architecture, and head board pinouts. Verify the green label branding and voltage rank on the head casing before installation.
Terms, Warranty & Customer Protection
Condition: 100% Brand New, Unopened Factory Original Genuine OEM Component in Factory-Sealed Anti-Static Packaging with Factory Storage Fluid Intact.
Warranty Scope: Covered by standard manufacturer DOA replacement protection against electrical continuity failures and physical manufacturing defects upon initial arrival. Operating longevity and channel firing integrity are governed by ink filtration, degassing quality, correct waveform tuning, and routine maintenance compliance.
Return Policy: Precision industrial electronic consumable. Due to sensitivity to electrostatic discharge, internal fluid priming requirements, and contamination risks once unsealed, components that have been removed from their static-shielding bag, filled with ink, flushed with solvents, or energized cannot be returned or restocked under standard commercial terms. Please confirm your printer model and drop-volume specification with technical support prior to unsealing.
IRH2533U-2410
131 Items
