Anti-Shedding Round RFID Ear Tags for Pig Farm Herd Identification
Chip:EM4305
Material:TPU
Frequency：134.2KHz
Product name:Ear Tag for Pigs
Circular Swine Ear Marker Built to Resist Pull-Off in Pen Environments
Conventional rectangular livestock identifiers often catch on feeder edges, pen bars, and neighboring animals - leading to costly tag losses. This circular-profile electronic ear marker removes protruding corners entirely. The smooth 30 mm disc glides past pen fixtures without snagging, and rotates freely on the ear so lateral forces cause the tag to spin rather than pull. SynTek's own production data shows a drop rate below 1%, making re-tagging labor and lost identity data far less of a concern for commercial pig farms.
Each unit embeds a passive EM4305 low-frequency transponder supporting both FDX-B (Full Duplex) and HDX (Half Duplex) encoding. The chip is readable by any ISO 11784/11785-compliant scanner, ensuring interoperability with common handheld wands, panel readers, and automated sorting equipment regardless of brand.
Need samples to test in your farm environment? We provide free evaluation samples with 4–6 day delivery for swine operations worldwide.
Full Parameters for This 134.2 KHz Pig Identification Solution
Reference sheet for procurement teams and system integrators evaluating electronic tagging options for swine herd management projects.
| Product Name | Anti-Shedding Round Ear Tags for Pig Farm Herd Identification |
| Material | TPU (Thermoplastic Polyurethane) - flexible, waterproof, UV-resistant |
| Shape & Dimension | Circular disc, diameter 30 mm; custom sizes available on request |
| Color Options | Yellow, Red, Blue, Green, White, Orange, or custom color |
| Chip | EM4305 (FDX-B), HDX available; optional Hitag S256, NTAG213/216 |
| Operating Frequency | 134.2 KHz (LF) | 125 KHz (LF) | 13.56 MHz (HF/NFC optional) |
| Protocol | ISO 11784 / ISO 11785 (FDX-B); ISO 14443A (NFC optional) |
| Read Distance | 5 – 10 cm depending on reader model and implant depth |
| Data Retention | 20+ years (passive - no battery required) |
| Working Temperature | -25 °C to +70 °C (body-temperature optimized) |
| Marking | Laser engraving - serial number, ICAR number, barcode, custom logo |
| Encoding | Pre-encoded unique ID number / text / URL per customer specification |
| Application Tool | Standard plier-type livestock applicator |
| Target Animals | Pigs (piglets, sows, boars, finishers); also compatible with sheep and goats |
| Personalization | ICAR number encoding, UID programming, laser engraving available |
What Sets This Snag-Free Swine Identifier Apart
Designed specifically for the realities of pig housing - not a generic livestock tag repurposed from cattle applications.
Anti-Shedding Geometry for Aggressive Pen Conditions
Pigs in confined finishing barns constantly push against feeders, gates, and each other. Rectangular or flag-shaped identifiers catch and tear away. The edge-free circular profile of this TPU disc allows it to rotate freely and slide past obstructions. SynTek's documented drop rate for this product is below 1%, significantly reducing re-tagging labor in high-density swine operations.
Tough Polyurethane That Survives Barn Sanitation
The polyurethane body is inherently waterproof and resists degradation from UV exposure and common farm cleaning agents. Unlike rigid plastic alternatives, it bends without cracking when stepped on or crushed against concrete slats - a routine occurrence in swine housing. This flexibility also protects the embedded EM4305 chip from impact delamination.
ISO-Standard Transponder for Universal Scanner Compatibility
The embedded 134.2 KHz FDX-B transponder conforms to ISO 11784/11785 - the globally accepted standard for electronic animal identification. Any ISO-compliant handheld scanner, panel reader, or automated sorting gate can read the encoded ID, regardless of equipment manufacturer. HDX encoding is also available for operations requiring extended read range.
Vertically Integrated Production with In-House TPU Molding
SynTek manufactures with its own TPU injection molding machinery - established in 2006 with full vertical control from raw material to finished product. This means factory-direct pricing without trading-company markups, the ability to handle custom color batches, and consistent quality across large orders. Each tag can be laser-engraved with sequential numbers, farm logos, or ICAR-format identification strings.
Evaluating suppliers for a swine identification project? Get a quote with factory-direct pricing - no middlemen, no markup.
How Pig Farms Deploy These Low-Frequency Electronic Identifiers
From commercial fattening operations to breeding programs and disease traceability systems, common deployment scenarios for this anti-pull swine identifier.
Intensive Farrow-to-Finish Operations
Large-scale producers tag piglets shortly after birth and track each animal through nursery, growing, and finishing phases. The durable circular tag stays attached through the full production cycle, feeding continuous data into automated weighing, feeding, and sorting systems. The snag-resistant profile is particularly valuable in high-stocking-density finishing barns where physical contact between animals is constant.
Sow Herd & Breeding Records Management
Breeding farms assign a permanent electronic identifier to each gilt at selection. The passive transponder requires no battery, so the encoded ID remains readable across multiple parities throughout a sow's productive life. Paired with a handheld wand scanner, farm staff can instantly pull up breeding history, litter records, vaccination status, and performance data at the point of care.
National Traceability & Slaughter Compliance
Many countries now mandate individual electronic identification for swine moving across regions or entering slaughter facilities. These ISO 11784-compliant tags support official numbering formats and enable rapid trace-back during disease outbreak investigations. The waterproof construction ensures reliable reads at abattoir intake - even after transport and lairage.
Quality Standards & Compliance
Our electronic animal identification products are manufactured under certified quality systems and tested for performance before shipment.
CE Certification
ISO 9001
FAQ
Q: What makes the anti-shedding design different from standard ear tags?
A: The key difference is the edge-free disc profile. Standard rectangular or flag-shaped identifiers have corners and edges that catch on pen fixtures, feeders, and other animals. Our smooth, edge-free disc rotates freely on the ear - so lateral forces cause it to spin rather than pull. Combined with a reinforced interlocking pin, this geometry keeps the drop rate below 1%.
Q: Are these tags compatible with my existing handheld wand scanner?
A: Yes. The embedded 134.2 KHz FDX-B transponder complies with ISO 11784 and ISO 11785 - the universal standard for electronic animal identification. Any ISO-compliant reader will read these tags. If your system uses 125 KHz, we can supply EM4305 chips configured at that frequency as well.
Q: CanI get custom sizes for piglets versus adult sows?
A: The standard 30 mm diameter fits most finisher pigs and sows. For smaller piglets or larger breed applications, custom dimensions are available upon request. Contact us with your requirements and herd type, and our team will recommend the appropriate size.
Q: How long does the chip inside the tag last?
A: The passive transponder has no internal battery - it draws power from the reader's electromagnetic field during each scan. Data retention exceeds 20 years, far outlasting the production lifespan of any pig. The housing provides ongoing protection against moisture, UV exposure, and mechanical stress.
Q: Are you a factory or a trading company?
A: SynTek is a source manufacturer established in 2006, with our own TPU injection molding and laser marking production lines. We control the full process from raw material to finished product, which allows us to offer factory-direct pricing. You are welcome to visit our facility at your convenience.
Q: Canyou provide samples? What is the delivery time?
A: Yes, free samples are available for evaluation. Sample delivery time is typically 4–6 days. For bulk production orders, lead time depends on quantity, custom color, and encoding requirements - contact us for a specific timeline based on your project.
Q: What is the difference between FDX-B and HDX encoding?
A: FDX-B (Full Duplex, Type B) transmits its ID continuously while in the reader field, enabling faster read speeds - well-suited for automated sorting gates. HDX (Half Duplex) transmits after the reader pulse ends, which can offer slightly longer read range in some setups. Most modern swine management systems use FDX-B, but we supply both. Our team can help you choose based on your reader hardware.
Ready to Evaluate This Anti-Shedding Pig Identifier?
Request free samples and a factory-direct quote. Test retention, read performance, and fit in your barn environment before placing a bulk order.
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