Metal RFID Cards Metal Card RFID Technology Types 125 kHz

Metal Card RFID Technology Types

LF Metal RFID Cards

LF metal RFID cards operate at 125 kHz — the band most legacy access systems, older hotel locks, and staff ID estates still run on. The chip is usually EM-compatible read-only or a rewritable programmable 125 kHz, chosen by what the installed reader expects. And because low-frequency antennas are coils, the metal body needs a ferrite layer engineered behind the face before the card will read at all.

Legacy access control, selected hotel locks, staff ID, and replacement credentials where the installed reader requires LF.Metal card programs that can validate a finished encoded sample on the target readerProjects that need print, serial, QR, packaging, and data handling reconciled in one approved brief

Request Quote All Metal RFID Cards

(01) — Route brief

Match the chip, data, and approval path before choosing the finish.

This is the production brief for LF RFID: what it is for, how it behaves, what needs encoding, and what must pass before the batch starts.

Frequency 125 kHz

Best use Legacy access control, selected hotel locks, staff ID, and replacement credentials where the installed reader requires LF.

Chip route programmable 125 kHz, EM-compatible, or exact system-specific LF chip selected by the reader requirement.

Phone behavior Not phone-readable for normal smartphone NFC use.

Encoding Facility code, card number, clone or emulation route, or blank supply depending on the access provider.

Approval check Test an encoded finished metal sample on the exact door reader, enrollment reader, or lock.

(02) — Visual references

Compare the details that change the finished card.

Use this board to read the essentials at a glance: metal finish, marking contrast, edge quality, reader fit, and presentation style.

Brushed metal NFC card tapping a smartphone — 01 / What this shows **Brushed NFC phone tap**
A brushed stainless route for phone-readable NFC, NDEF URLs, profiles, menus, loyalty, and public tap experiences.

Champagne-gold metal NFC card beside a smartphone — 02 / What this shows **Gold NFC presentation**
A warm premium finish can still support a reader-tested phone-tap route when the RF stack is approved first.

Gunmetal metal RFID card at a secure reader — 03 / What this shows **Secure reader validation**
For standard HF, high-security AES HF, and access builds, validate a finished card on the real reader before batch approval.

Copper metal RFID credential on a contactless reader — 04 / What this shows **Copper reader test**
A copper finish direction that preserves the same reader-first approach: shield, antenna, chip, and final surface are tested together.

Gunmetal metal credential in front of UHF gate antennas — 05 / What this shows **UHF range route**
Long-range UHF work needs range, orientation, reader power, nearby materials, and final metal body testing.

Metal RFID card encoding and QA workstation — 06 / What this shows **Encoding and QA**
Keep UID exports, NDEF records, QR, serials, packaging labels, and card batches reconciled from one approved source file.

Exploded metal RFID card shielding and antenna stack — 07 / What this shows **Metal RF construction**
The front face, ferrite layer, antenna, chip, core, and rear face are a single engineered construction—not separate finish choices.

Metal RFID finish stack — 08 / What this shows **Reader and chip context**
Use this to judge how the wood body, tap area, chip route, and reader test fit together.

(03) — Metal Card RFID Technology Types

Read-only or rewritable — the installed system decides.

EM-style LF chips carry a fixed ID that the access platform enrolls; programmable 125 kHz is rewritable and can be programmed to match an existing format. Neither is phone-readable — 125 kHz is a reader-only band. If the goal is phone tap, this is the wrong route; if the goal is working with the reader already on the wall, it is often the only one.

(04) — Metal Card RFID Technology Types

Approve a working sample in the real environment.

Test an encoded finished metal sample on the exact door reader, enrollment reader, or lock.

(05) — Applications

Best uses for LF RFID.

The practical route is selected from the system, audience, and handling context before the final metal finish and mark treatment are approved.

Best for

Legacy access control, selected hotel locks, staff ID, and replacement credentials where the installed reader requires LF.
Metal card programs that can validate a finished encoded sample on the target reader
Projects that need print, serial, QR, packaging, and data handling reconciled in one approved brief

Quote details

Target reader, lock, phone, scanner, or platform
Metal finish, quantity, and packaging need
Artwork files, data file, and encoding requirements
Sample approval and delivery deadline

(06) — Specification

Production details to confirm before sample or batch.

Metal card production should confirm body construction, finish, chip route, data handling, marking layers, and approval samples in one brief.

Format CR80 85.6 x 54 mm by default; custom outlines after RF review

Thickness 0.3 mm to 0.8 mm depending on construction

Minimum order None — single samples to production runs

Production time About one week after artwork and sample approval

RF construction Antenna, ferrite or hybrid shielding, chip, metal faces, and edge stack specified together

Chip routes NFC tag, standard HF, high-security AES HF, LF compatibility, and selected UHF by reader test

Marking options Laser etch, deep engraving, UV print, white ink, enamel fill, QR, serial, and controlled cut-through

Approval flow Finish sample, encoded working sample, reader check, pre-production approval

Frequency 125 kHz

Chip route programmable 125 kHz, EM-compatible, or exact system-specific LF chip selected by the reader requirement.

Phone behavior Not phone-readable for normal smartphone NFC use.

Encoding Facility code, card number, clone or emulation route, or blank supply depending on the access provider.

Approval check Test an encoded finished metal sample on the exact door reader, enrollment reader, or lock.

(FAQ) — Common questions

Questions buyers ask about LF RFID.

01When should I choose LF for a metal card?

When the installed reader, lock, or ID platform runs at 125 kHz. Send the reader model or an existing working credential — the LF route is confirmed by testing an encoded metal sample on that exact device, not by the datasheet.

02Are LF metal cards phone-readable?

No. Smartphone NFC operates at 13.56 MHz, a different band. LF cards serve door readers, enrollment readers, and locks; a printed QR zone can be added where staff also need a visual or phone-checkable fallback.

03Why does an LF metal card need a working sample?

A 125 kHz antenna is a coil, and a metal face detunes it. The ferrite layer, coil geometry, body thickness, and final finish are proven together on the real reader before production.

(09) — Quote LF RFID

Send quantity, chip, material, print and encoding requirements.

Engineered antenna pathFerrite or hybrid RF structureLaser and deep engravingBrushed, plated, coated finishesUID, NDEF, and access encodingSample kits and production approval