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Seiko RC1536-L Recirculation Industrial Printhead (Large Drop)
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$2,350.00
$1,081.00
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Industrial-grade 1536-nozzle continuous ink recirculation printhead engineered with an adjustable 25 to 225 pL drop volume for high-pigment ceramic and glass printing.
OEM Replacement Component
Seiko Instruments RC1536-L Recirculation Industrial Printhead (Large Drop)
OEM Part Number: Seiko RC1536-L / IRH3023U-L Series | Heavy-Laydown Continuous Through-Flow Greyscale Piezoelectric Jetting Assembly
Product Overview
The Seiko Instruments RC1536-L (Large Drop) is an authentic original equipment manufacturer (OEM) piezoelectric drop-on-demand (DoD) industrial inkjet printhead engineered specifically for high-volume laydown applications, including industrial ceramic tile glazing, decorative ceramic engobes, heavy pigment deposition, textured 3D embellishments, opaque white barrier coats, and thick functional fluid coating. Incorporating 1,536 active nozzles spanning an expansive 108.3 mm print swath, the RC1536-L utilizes an enlarged native nozzle geometry delivering a baseline calibrated 35 picoliter (pL) droplet size, capable of scaling up to 140+ pL in multi-pulse greyscale modes.
Built on Seiko's full-nozzle isolated continuous through-flow architecture, the RC1536-L circulates fluid constantly directly behind the nozzle orifice plate. This continuous flow prevents the sedimentation of dense inorganic ceramic frits, heavy glazes, and titanium dioxide pigments, while simultaneously expelling micro-bubbles and preventing nozzle drying. Constructed with high-performance PZT shear-mode ceramics, dual integrated high-wattage heating circuits, and a reinforced stainless steel faceplate guard, the RC1536-L provides superior jetting stability and high impact energy for fluids with operating viscosities up to 25 mPa·s at firing frequencies up to 37 kHz.
Part Information
| Product Name | Seiko Instruments RC1536-L Industrial Printhead (Large Drop) |
| OEM Manufacturer | Seiko Instruments Inc. (SII Printek) |
| OEM Part Number / Series | Seiko RC1536-L / IRH3023U-L Series |
| Component Classification | Industrial High-Laydown Recirculating Drop-on-Demand (DoD) Piezoelectric Line Head |
| Recirculation Dynamic | Continuous Full-Nozzle Through-Flow Recirculation (Differential Pressure Driven) |
| Nozzle Guard Architecture | Chemically Bonded Passivated Stainless Steel Nozzle Plate Guard |
| Manufacturing Standard | Seiko Instruments Factory Certified (Japan) |
Technical Specifications
| Printhead Technology | Piezoelectric Drop-on-Demand (DoD) Greyscale with Continuous Recirculation |
| Number of Active Nozzles | 1,536 addressable channels (interleaved multi-row linear matrix) |
| Native Resolution / Pitch | 360 DPI across combined active rows (70.5 micron nozzle-to-nozzle pitch) |
| Active Print Swath Width | 108.3 mm (4.26 inches) continuous swath |
| Native Base Drop Volume | 35 picoliters (pL) native calibrated droplet |
| Multi-Drop Greyscale Range | 35 to 140+ pL (up to 8 greyscale levels via multi-pulse sub-drop merging) |
| Maximum Operating Frequency | Up to 37 kHz binary; approx. 18–24 kHz high-laydown multi-drop modes |
| Operating Viscosity Range | 8 to 25 mPa·s (cP) at elevated operating jetting temperature |
| Recirculation Flow Dynamic | High-volume through-flow loop across nozzle backplate driven by differential pressure |
| Temperature Regulation | Up to 55°C (131°F) via dual integrated internal heaters and closed-loop thermistors |
| Fluid Compatibility | Ceramic glazes, engobes, heavy inorganic pigments, UV-curable tactile varnishes, white UV inks, functional coatings |
| Fluid & Electrical Interfaces | Dual high-flow stainless steel push-in fluid couplings (Inlet/Outlet); high-speed shielded FFC terminals |
Key Features & Operational Advantages
- Large-Drop 35–140+ pL Deposition: Delivers heavy volumetric laydown per pass, enabling rich glaze coverage, opaque white foundations, and high-build tactile structures on ceramic tiles, glass, and packaging substrates.
- Full-Nozzle Continuous Through-Flow Recirculation: Constant fluid sweeping behind the nozzle orifices prevents pigment settling in high-density suspensions, purges micro-bubbles, and keeps channels open during standby.
- Expansive 108.3 mm Single-Pass Swath: Significantly reduces the total head count across industrial print bars, minimizing physical alignment errors and color banding between modules.
- Broad Viscosity Handling (Up to 25 mPa·s): Heavy-duty drive channels paired with dual-zone 55°C heating allow smooth jetting of thick ceramic glazes and high-viscosity oligomers without dot deflection.
CRITICAL TECHNICAL & OPERATIONAL ADVISORY
1. Recirculation Pressure Differential & Meniscus Stability: The through-flow architecture requires a calibrated differential pressure between the supply and return lines (typically 15 to 30 mbar delta) while maintaining strict negative meniscus pressure (-2.0 to -4.0 mbar) at the nozzle plate. Improper tuning will cause ink weeping, nozzle flooding, or severe air ingestion during high-frequency firing.
2. Heavy Pigment & Glaze Filtration: Operating with dense inorganic ceramic pigments or frits requires multi-stage filtration (nominal 5 to 10 micron pre-filters and 2 to 3 micron absolute sub-tank filters) to avoid particulate clogging in the actuator channels. Regularly monitor recirculation flow rates and differential pressure sensors.
3. Mandatory ESD Grounding & Power Sequencing: PZT shear-mode piezoelectric crystals and onboard high-frequency driver ICs are Class 1 ESD-sensitive components. Technicians must wear a grounded ESD wrist strap and work on a static-dissipative work surface. Never connect or disconnect FFC data cables while the carriage board or main power supply is energized.
4. Storage Fluid Purge Protocol: Factory-shipped printheads contain a protective storage fluid. Flush the head thoroughly using filtered, compatible flush fluid (filtered to 0.2 microns) before charging with production inks. Clean the stainless steel faceplate solely using dedicated lint-free cleanroom polyurethane swabs soaked in approved flush solvent; never use dry wipes or metallic scrapers.
Compatible Models & Systems
| System Manufacturer | Ink Chemistry | Supported Industrial Platforms |
|---|---|---|
| EFI Cretaprint / Projecta | Ceramic Glaze / Frits | Cretaprint C3 / C4 / High-Laydown Ceramic Glazing Lines |
| TecnoFerrari / Hope Digital | Engobes / Inorganic Pigments | VivaJet Industrial Single-Pass Ceramic Decoration Presses |
| Docan Digital / Handtop | UV Varnish / Opaque White | High-Build UV Flatbed & Single-Pass Embellishment Systems |
| Industrial OEM Custom Presses | Ceramic / Functional Fluids | Heavy-Laydown Packaging Bars, Building Materials Glazing |
*Model Differentiation Note: This printhead is dedicated strictly to the single-channel RC1536-L (Large Drop, 35 pL native) recirculating configuration. It is distinct from the standard small/medium-drop RC1536 variants (13 pL / 25 pL), dual-channel RC1536-2C heads, and non-recirculating Seiko 1024GS / 1024HG series. Ensure waveform calibrations and recirculation system pressures match the Large Drop specification 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 quality, degassing efficiency, differential recirculation pressure stability, and routine maintenance compliance.
Return Policy: Precision industrial electronic consumable. Due to sensitivity to electrostatic discharge, internal fluid priming requirements, and cross-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 recirculation subsystem specifications with technical support prior to unsealing.
RC1536-L
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