Blank RFID Clamshell Card
- Durable blank RFID clamshell cards for access control applications
- Pre-encoded or programmable chip options available
- 125kHz low-frequency RFID for seamless compatibility with legacy readers
- Ideal for time attendance, door access, ID badging, and security systems
- Printable ID label area for easy customization
The blank RFID clamshell card is a sturdy, industrial-grade access card designed for long-term use in demanding environments. Built with rigid ABS plastic, it offers superior resistance to bending, moisture, and daily wear.
These clamshell access cards are widely used in office buildings, schools, factories, and gated communities due to their reliable 125kHz RFID technology (other frequency also available). With an embedded chip like TK4100 or EM4200, these cards support seamless contactless scanning at short ranges. The plain surface allows for optional sticker labels, ID badge overlays, or barcode integration, making it a flexible solution for secure identification and access systems.
Key Features:
- Heavy-duty ABS construction for durability
- Compatible with common 125kHz RFID readers (e.g., HID-compatible systems)
- Custom label area or slot punch available
- Optional printing/sticker for personalization
- Ideal for access control, parking, attendance tracking
Physical Characteristics
- Product SKU: Zeal-1007
- Material: Rigid ABS plastic
- Size: 85.6 x 54 mm (CR80), clamshell thickness ~1.8 mm
- Thickness: 1.8 ± 0.1 mm
- Weight: Approx. 10–12g
- Surface Finish: Matte or rough for sticker application
- Structure: Solid sealed RFID clamshell design
- Antenna Type: Coil antenna embedded
RFID Core Technology
- Chip Model: TK4100 / EM4200 / EM4305 / T5577 (optional)
- Frequency: 125 kHz (LF) (other frequencies also available)
- Protocol: EM standard / ISO 11784/11785
- UID Type: 64-bit read-only (TK4100) or rewritable (T5577)
- Memory Size: Varies by chip; most with 64-bit UID or 512-bit EEPROM
- Data Retention: 10 years
- Write Endurance: 100,000 cycles
Performance & Security
- Reading Distance: 2 – 10 cm
- Anti-collision Support: No
- Security: Low-frequency UID or password protection (optional)
Environmental & Durability
- Operating Temperature: -25℃ to +70℃
- Storage Temperature: -40℃ to +85℃
- Humidity Range: 20% ~ 90% RH
- Durability: Waterproof, bend-resistant, drop-resistant
- Lifespan: 100,000+ scans
Packaging & Order Info
- MOQ: 500 pieces
- Packaging: 25pcs/bundle, 1000 pcs per carton
- Carton Size & Weight: Customized per order quantity
- Lead Time: Sample: 5–7 days; Bulk: 7–20 days
- Customization:
- ID sticker label or barcode printing
- Slot hole punch for lanyard
- Optional chip type
- Laser-engraved or serial number encoding
Please Note: Customization options may vary slightly depending on the card material. If you can’t find what you want from the following option, feel free to contact us and let us know your needs. We’ll get back to you ASAP after confirming with our engineers. And we will do our utmost to customize the card you desire.
Printing Method
Here are 3 professional printing techniques to bring your designs to life.- Silkscreen Printing: ideal for printing logos and icons. The colors are pure and it is suitable for projects that require bright colors, large areas of solid color, and high-contrast patterns.
- UV Printing: Bright colors, scratch-resistant, suitable for complex patterns and multi-color printing.
- Offset Printing：High color reproduction accuracy, suitable for complex multi-color designs.
Surface Finishes
We provide the following surface finishes to cater to different branding styles.
- Glossy Finish: Surface is smooth and shiny, with rich and bright colors.
- Matte Finish: Soft and non-reflective, with a premium touch.
- Frosted Surface: Similar to frosted glass, it is anti-slip and anti-fingerprint.
- Spot UV: Glossy coating on selected areas for emphasis and visual contrast.
- Hot Stamping (Gold/Silver): Shiny metallic effect, enhancing card’s texture and brand equity.
Functional Add-ons
Improve usability with functional features to match your application needs.
- Magnetic Stripe: Commonly used for access control, membership, or payment systems.
- Signature Panel: Ideal for cards requiring a signature space, such as staff or banking cards.
- Scratch-off Panel: Covers PINs or promotional codes for privacy and marketing.
- Hole Punch: Allows easy attachment to lanyards or clips, useful for ID badges.
Security & Personalization
Enhance brand exclusivity and anti-counterfeiting features for premium applications.
- Variable QR Code / Barcode: Custom unique codes for access, tracking, marketing, loyalty programs, etc.
- Serial / Embossed Numbers: Unique serial number per card, variable data.
- Laser Engraving Number: Non-erasable, enhance anti-counterfeiting level.
- Hologram: Enhance brand trust and provide strong anti-counterfeiting protection.
Custom Size
Besides standard CR80 cards (85.5×54mm), we also allow you to customize the shapes, thickness (0.2 – 0.8mm), and dimensions according to project needs.Custom RFID Chip
Choose the RFID chips by protocol, capacity, and functionality. We have chip with LF (125KHz), HF (13.56MHz), and UHF (860–960MHz) frequencies. Other chips are also available upon request.
Chip Type Protocol Capacity Anti-collision Function Frequency TK4100 / No No Read Only 125KHz EM4200 / No No Read Only 125KHz EM4305 / 512 bit No Read/Write 125KHz T5577 / 330 bits No Read/Write 125KHz NTAG® 213 ISO14443A 180 byte No Read/Write 13.56MHz NTAG® 215 ISO14443A 540 byte No Read/Write 13.56MHz NTAG® 216 ISO14443A 924 byte No Read/Write 13.56MHz MIFARE® Classic® 1K ISO14443A 1 KB No Read/Write 13.56MHz MIFARE® Classic® 4K ISO14443A 4 KB No Read/Write 13.56MHz MIFARE® Plus® S 1K ISO14443A 2 KB / 4 KB No Read/Write 13.56MHz MIFARE Ultralight® EV1 ISO14443A 48 byte No Read/Write 13.56MHz MIFARE Ultralight® C ISO14443A 144 byte No Read/Write 13.56MHz ICODE® SLIX ISO15693 896 bit Yes Read/Write 13.56MHz Alien H3 ISO18000-6C 512 bit Yes Read/Write 860–960MHz
General Info Questions
What is a RFID clamshell card?
It is a durable, thick card with an embedded RFID chip, typically unprinted and unencoded, designed for rugged applications like access control, time tracking, and employee identification.
What is the product SKU for these cards?
The SKU is Zeal-1007.
What are the primary uses for these cards?
These cards are perfect for business applications such as secure building access, time and attendance systems, employee IDs, and membership management, offering a reliable and cost-effective solution.
How do clamshell cards differ from standard RFID cards?
Clamshell cards are thicker (1.8–1.9 mm) than standard ISO cards (0.76 mm), making them more durable for demanding environments. They also include a slot punch for easy attachment to lanyards or badge reels.
Technical and Customization Questions
Which RFID chips are available for these cards?
We offer 125 kHz chips like EM4200, TK4100, or T5577, and 13.56 MHz chips like MIFARE Classic 1K, NTAG213, or Fudan S50, etc.
What frequency and protocol do these cards use?
They operate at 125 kHz (low frequency) or 13.56 MHz (high frequency), using ISO/IEC 14443A or ISO 18000-2 protocols, ensuring compatibility with most RFID readers for access control.
Can I print on these cards?
Due to their thickness, direct printing isn’t possible with standard ID card printers. You can customize them by printing on thin CR79/CR80 adhesive PVC labels (10–20 mil) and attaching them to the card.
How do I program data onto these cards?
Use an RFID reader/writer to encode data, such as access codes or employee IDs, in formats like 26-bit Wiegand. We provide encoding guides or professional services to assist with setup.
Can the cards be rewritten?
Chips like T5577 or MIFARE Classic support rewriting (≥100,000 cycles), while others like EM4200 are read-only with a fixed 32-bit ID. Confirm your chip type for the function.
What customization options are available?
You can select chip types (LF/HF), encode specific data, add printed adhesive labels, include external numbering, or choose vertical/horizontal slot punching for lanyards or badge reels.
What is the read range for these cards?
The read range is 1–10 cm for 125 kHz cards and 1–5 cm for 13.56 MHz cards, depending on the reader and environment, ideal for proximity-based access systems.
Ordering and Durability
What materials are used in these cards?
Our clamshell cards are made from durable ABS plastic with a PVC layer, designed to withstand cracking, bending, and environmental stress in demanding settings.
What are the size and weight of these cards?
They are CR80 standard size (85.5 × 54 mm), 1.8–1.9 mm thick, and weigh approximately 9–10g, slightly heavier than standard cards due to their robust build.
How durable are these cards?
These cards resist cracking, bending, and moisture, performing reliably from -25℃ to +70℃ (operating) and -40℃ to +85℃ (storage), in 20%–90% RH humidity.
What security features are included?
They support UID lock, password protection (for rewritable chips), and 26-bit Wiegand encoding for secure access control. Adhesive labels can include tamper-evident holograms.
What is the minimum order quantity (MOQ)?
The MOQ is 500 cards, with 25pcs/bundle and 1000 cards per carton.
How long does it take to receive an order?
Samples ship in 5–7 days, while bulk orders take 7–20 days, depending on customization and encoding needs.
Can these cards be returned?
Unused cards in original packaging can be returned within 30 days. Customized or encoded cards are non-returnable unless defective.
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