Zebra ZT421 Industrial RFID Barcode Label Printer
Zebra ZT421 Industrial RFID Barcode Label Printer provides the 6-inch printing width and advanced encoding technology your operations demand. This high-performance industrial printer excels at printing and encoding large labels, shipping tags, and compliance labeling while maintaining the same proven durability and UHF RFID capabilities as the ZT400 series. With comprehensive connectivity options including standard USB 2.0, Serial, Ethernet, dual USB Host, and Bluetooth 4.1, the ZT421 ensures seamless integration into complex supply chain and logistics environments. Built to handle demanding applications with exceptional reliability, this space-saving design features a rugged metal frame and bi-fold construction that fits easily into constrained environments while delivering consistent performance. The large 4.3-inch full-color touchscreen simplifies RFID calibration and settings management, while adaptive encoding technology provides excellent media flexibility without complex placement guidelines. Powered by Zebra DNA for Printers and Link-OS, the ZT421 offers global RFID certification across six continents, making it ideal for multinational supply chains requiring wide-format item-level tracking, compliance labeling, and asset management across transportation, logistics, manufacturing, and retail operations.
Key Highlights
- Wide-format 6.6-inch RFID printer for industrial labeling
- Supports UHF RFID (EPC Gen2 / ISO 18000-63) encoding
- High-quality printing with 203 dpi / 300 dpi resolution
- Fast performance up to 12 ips print speed
- Rugged all-metal construction for industrial environments
Product Overview
The Zebra ZT421 Industrial RFID Barcode Label Printer is a high-performance 6-inch wide industrial printing solution designed for mission-critical labeling and RFID encoding applications. It supports thermal transfer and direct thermal printing with resolutions of 203 dpi and 300 dpi, delivering sharp and reliable output for barcodes, text, and graphics. With a maximum print width of 168 mm (6.6 inches), it is ideal for wide-format labels used in logistics, manufacturing, shipping, and compliance labeling environments.
Built with a rugged all-metal frame and industrial-grade construction, the ZT421 is engineered for continuous operation in demanding environments. It supports UHF RFID encoding (EPC Gen2 / ISO 18000-63 / RAIN RFID) with adaptive encoding technology for accurate tracking and supply chain visibility. With flexible connectivity options such as USB, Serial, Ethernet, and Bluetooth, it ensures seamless integration into enterprise systems for efficient and scalable industrial printing workflows.
Key Features & Capabilities
Enterprise-grade technology designed for mission-critical operations
Print Specifications
203/300 dpi resolution, 12 ips speed, 6.6 in (168 mm) width enabling fast and high-quality wide-format industrial printing
RFID Capabilities
UHF EPC Gen 2 V2.1 encoding with 16 mm minimum pitch for precise RFID tagging and real-time tracking
Industrial Build
Metal frame construction with bi-fold media cover design ensuring durability and easy media handling in harsh environments
User Interface
4.3-inch full-color touchscreen providing intuitive control and simplified RFID configuration
Network Ready
Standard USB, Serial, Ethernet, and Bluetooth connectivity for flexible system integration
Technical Specifications
Key technical details and performance specifications
| Specification | Details |
|---|---|
| Product Type | Printer |
| Air Interface Protocol | EPC global UHF Class 1 Gen 2 V2 (ISO 18000-63) |
| Operating Frequency | FCC (902-928 MHz) |
| Data Interface | USB 2.0, RS-232, 10/100 Ethernet, Bluetooth 4.1, Dual USB Host |
| Power Source | Auto-detectable (PFC Compliant) 100-240 VAC, 50-60 Hz, 100 Watts |
| Resolution | 203 dpi or 300 dpi (optional 600 dpi for selected models) |
| Print Width | 168 mm (6.6 in) |
| Max Outer Diameter | 203 mm (8 in) |
| ID Core Options | 76 mm (3 in) |
| Dimensions | 495 x 336 x 324 mm (19.5 x 13.25 x 12.75 in) |
| Weight | 18.14 kg (40 lbs) |
| Operating Temperature | +5° to +40°C (+41° to +104°F) |
| Host API | ZBI 2.0, ZPL, ZPL II, EPL, EPL2 (EPL available on 203 dpi models only) |
| Memory | 256 MB SDRAM, 512 MB on-board Flash |
| Maximum Print Speed | Up to 14 ips (ZT411), 12 ips (ZT421) |
| Media Sensors | Adjustable dual media sensors (transmissive and reflective) |
| Media Types | Continuous, die-cut, notch, black-mark |
| Ribbon Length | 1476 ft / 450 m |
| Connectivity Options | Wi-Fi (802.11ac), Bluetooth, Parallel, Ethernet, Applicator interface (optional) |
| Barcode Support | Supports linear and 2D barcodes including Code 128, QR Code, Data Matrix, PDF417, Aztec |
| Agency Approvals | IEC 62368, CE, FCC, ICES-003, VCCI, RCM, BIS and other global safety certifications |
| Automation Options | Extended peel mechanism, captured media spindle, applicator interface card for automatic labeling systems |
| Fonts and Graphics | 16 ZPL bitmap fonts, scalable fonts, Unicode support, downloadable graphics and label formats, 64 MB storage, 8 MB SDRAM |
| Keyboard Display Unit | ZKDU stand-alone printing support |
| Barcode Symbologies (2D) | QR Code, PDF417, MicroPDF417, Data Matrix, MaxiCode, Aztec, Code 49, RSS-14, TLC 39" |
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Frequently Asked Questions
Everything you need to know about RFID and AIDC solutions