SII Printek Inc. has developed a variety of Seiko printheads that are widely used in both the solvent and UV printing markets. Popular series include the 255, 510, 508, and 1020 models.
In recent years, the company has introduced advanced printheads such as the RC512, 1024GS, and RC1536 — where “RC” stands for “Recirculation,” indicating continuous ink flow for improved performance.
This overview covers several key SII Printek models, including the SPT-510BN, SPT-1020BN, RC1536, SPT-508GS, and SPT-1024GS, explaining their features and applications in modern printing environments.
Industrial-Grade Seiko SPT510-35PL Printhead
The Seiko SPT510-35PL print head has a nozzle width of 72mm, a physical accuracy of 180 DPI, and an ignition frequency of 8.29 kHz. Since its launch in 2005, it has led China’s advertising inkjet printing into the era of high precision. In terms of market share and customer reputation, it has always been ahead of similar products in the advertising inkjet printing market segment.
| Nozzle Number | 510 |
| Print Width | 71.9 mm |
| Native Nozzle Resolution | 180 npi |
| Jetting Speed | 4.2 m/s |
| Jetting Frequency | 8.29 kHz |
| Ink Droplet Volume | 35 pl |
| Usable Ink Types | Oil-, UV-, Solvent-based |

Core Advantages
The Seiko SPT 510-35PL printhead offers outstanding advantages in the large-format printing industry, making it a popular choice for outdoor advertising, vehicle wraps, lightbox printing, and more. With 510 nozzles arranged in 6 rows, it provides an effective print width of 71.8 mm at a resolution of 180 dpi, delivering stable and high-quality output. This makes it perfect for applications that require both speed and high-quality results.
In addition to its impressive print width, the SPT 510-35PL features a stable ink circuit and internal recirculation system. This design ensures a consistent ink flow, preventing nozzle clogging and ink sedimentation, thus enhancing long-term reliability and performance. The 35 pl droplet size strikes an ideal balance between print precision and productivity, making it highly efficient for commercial printing applications that require both speed and cost-efficiency.
The printhead is compatible with a wide range of industrial inks, including solvent, eco-solvent, and UV inks, offering great flexibility for different machines and materials. This broad compatibility makes it an excellent choice for various printing systems. After over a decade of market testing, the Seiko SPT 510-35PL has proven to be a reliable, low-maintenance option with easy access to replacement parts.
Overall, the Seiko SPT 510-35PL is a dependable printhead that combines wide-format output, stable ink delivery, versatile ink compatibility, and long-term reliability. It has become a trusted solution for large-format printing needs.
Applicable Scenarios for the Seiko SPT 510-35PL Printhead
- Outdoor Advertising Printing
- Vehicle Wraps & Graphics
- Lightbox Fabric & PP Paper
- Label Printing & Packaging Markings
- Industrial Inkjet Coding Systems
- Wide-Format Applications for Single-Color or Two-Color Systems
Industrial-Grade Seiko SPT510-50PL Printhead
As an extension product of the SPT510 series of print heads, the Seiko SPT510-50PL print head is positioned for users with high-volume advertising inkjet processing. It can provide stable, reliable, and highly flexible inkjet solutions to produce eye-catching promotional advertisements.
| Nozzle Number | 510 |
| Print Width | 71.8 mm |
| Native Nozzle Resolution | 180 npi |
| Jetting Speed | 4.2 m/s |
| Jetting Frequency | 6 kHz |
| Ink Droplet Volume | 50pl |
| Usable Ink Types | Oil-, UV-, solvent-based |

1. High-Capacity Printhead
72mm nozzle width, 50PL ink droplets, single print head prints 240X360DPI, 2 times to achieve color saturation, and output capacity of 80 square meters per hour;
2. Excellent Stability
Inherits the excellent inkjet stability of the SPT510-35PL print head, reliable jet life, and high-quality image output;
3. Powerful Additional Functions
The internal ink damper improves the stability of ink supply, the filter device prevents clogging of the nozzles, the real-time voltage control system to improve the jet stability, the TICKLING function to prevent clogging of the print head, etc.
Industrial-Grade Seiko SPT1020-35PL Printhead
The SPT1020 head is a physical combination of two SPT510-35pl heads. It inherits the excellent performance of the 510 printhead and increases the physical resolution of the head to 360DPI, achieving the needs of high-precision and high coverage of single-pass printing.
| Nozzle Number | 1020 |
| Print Width | 71.9mm |
| Native Nozzle Resolution | 360npi |
| Jetting Speed | 4.2m/s |
| Jetting Frequency | 8.29kHz |
| Ink Droplet Volume | 35pl |
| Usable Ink Types | Oil-, UV-, Solvent-based |
1. High-capacity head
72mm nozzle width, 1020 nozzles, 35PL ink droplets and 8.29KHZ dotting frequency, single nozzle saturation printing 2PASS 90 square meters per hour;
2. Built-in temperature and voltage control module
The printhead has a built-in temperature detection module, which can monitor the ink temperature inside the printhead in real time, and automatically adjust the voltage according to the temperature change to ensure the stability of ink supply;
3. Unique TICKLING function
The TICKLING function can shake the ink on the nozzles, which can effectively protect the nozzle from clogging due to ink drying.
Industrial-Grade Seiko 508GS-12PL Printhead
The Seiko SPT508GS printhead is widely used in the highest-end machine brands in the fields of textiles, UV, ceramics, inkjet printing, etc. Its excellent performance and diverse application solutions have won it a good reputation in the market.
| Nozzle Number | 508 |
| Print Width | 71.54mm |
| Native Nozzle Resolution | 180npi |
| Jetting Speed | 5m/s |
| Jetting Frequency | 14kHz |
| Ink Droplet Volume | 12/24/36pl, Greyscale (4 level) |
| Usable Ink Types | Disperse, reactive, acid and coating inks |

1. Nozzle independent drive mode
It has upgraded from the previous two-state drive mode to an independent drive mode in which all 508 nozzles can spray at the same time. It also supports 4-level grayscale printing to achieve high-precision printing quality.
2. With stable jetting performance and excellent ink matching
Having undergone over 10 years of improvement and market testing, the 508GS printhead has special application solutions for solvents, UV, water-based, ceramics, and oil-based inks;
3. Superior performance
The 14 14khz ignition frequency creates a printing speed of 76 square meters per hour (3 times that of saturated printing); the 12/24/36 pl grayscale printing mode creates an image printing quality of more than 720X720 DPI.
Industrial-Grade Seiko SPT1024GS Printhead
The SPT1024GS printhead has a nozzle width of 72mm, a physical accuracy of 360 DPI, a firing frequency of 30 KHZ, and a variable ink droplet of 7-35 PL, providing unparalleled reliability for digital inkjet printing applications such as textiles, labels, packaging, ceramics, advanced manufacturing, and other product decoration.
| Nozzle Number | 1024 |
| Print Width | 72.17mm |
| Native Nozzle Resolution | 360npi |
| Jetting Speed | 7m/s |
| Jetting Frequency | 30kHz |
| Ink Droplet Volume | 7/14/21/28/35pl, Greyscale (6 level) |
| Usable Ink Types | Disperse, reactive, acid and coating inks |
1. Grayscale & variable dot printing technology
Supports 6 levels of grayscale printing, from the smallest ink droplet 7PL to the largest ink droplet 35PL, and the firing frequency of single-point printing is higher than kHz, enabling the 1024GS printhead to achieve high-speed, high-efficiency, and high-quality image output.
2. Built-in EPROM memory
The Seiko printhead has a built-in EPROM memory, and users can set data according to their own needs to meet market diversification.
3. Ink channel diversion technology
For high-yield printheads, the 1024GS uses ink channel diversion technology to achieve rapid ink supply, allowing all nozzles to achieve higher jetting frequencies at the same time.
Post time: Apr-16-2026
