CARD DISPENSER
SNR-K750L Card Dispenser & Recycling Module
Compact card dispenser and recycling module designed for automatic card issuing, card return and reusable-card circulation in self-service kiosks. Accepted returned cards can be recycled for subsequent issuing, while invalid or failed cards can be routed into a separate reject-card collection box.
- Card Handling – Dispensing / Return / Recyclin
- Reusable Card Workflow – Returned Cards Can Be Reissued
- Reject Handling – Separate Reject-Card Collection Box
- Reader / Encoder – Optional RFID or Third-Party Integration
- Communication – RS232
- Card Capacity – 50 / 100 / 150 Cards
3D drawings and integration references available.
CARD HANDLING
Card Issuing, Recycling & Reject Handling in One Module
The SNR-K750L is designed for unattended systems that need more than simple card issuing. It supports automatic card dispensing, returned-card acceptance, reusable-card recycling and separate handling of invalid or failed cards within one compact card-handling module.
Automatic Card Dispensing
Cards are automatically transferred from the card supply into the internal transport path for reading, encoding or direct issuing according to the host-system workflow.
Reusable Card Recycling
Accepted returned cards can be routed back into the reusable card supply so that they can be issued again in subsequent transactions. This closed-loop workflow is suitable for applications where the same physical cards are repeatedly returned and reused.
Separate Reject-Card Collection
Invalid, failed or designated cards do not need to return to the reusable card pool. They can be routed into a separate reject-card collection box, allowing reusable cards and exception cards to be handled through different paths.
Card Processing Position
The card can be moved to a controlled processing position before issuing, allowing the host system to coordinate card reading, writing or encoding with an integrated reader or third-party encoder.
RECYCLING WORKFLOW
How the K750L Reusable-Card Workflow Works
The SNR-K750L allows the host application to manage different card outcomes instead of treating every returned card in the same way.
A typical reusable-card workflow is:
Issue card → Use card → Return card → Read / verify if required → Select card path
Reusable card:
Return → Recycle → Reusable card supply → Issue again
Invalid or failed card:
Return / processing failure → Reject → Separate reject-card collection box
The actual decision logic is controlled by the kiosk application and the integrated reader or encoder according to the project workflow.
READER / ENCODER INTEGRATION
Flexible RFID Reader & Third-Party Encoder Integration
The K750L separates card movement from card-data processing. The dispenser controls card transport, issuing, return, recycling and reject handling, while the reader or encoder handles card identification, authentication or data writing.
Integrated RFID Option
For standard contactless-card projects, an RFID reader can be installed in the card-processing area according to the required card technology and application.
Third-Party Reader / Encoder
For projects that already use a specific reader or encoder, the K750L provides mechanical space for integration when the device dimensions, antenna position and required reading distance are suitable.
Hotel Lock Encoder Integration
Hotel projects can use the original compatible hotel-lock encoder rather than relying on a generic RFID reader. The K750L moves the card to the encoding position, while the hotel PMS or check-in application calls the hotel-lock encoder to write the room credential. Using the same 13.56MHz frequency or MIFARE card type does not automatically mean that a generic RFID reader can encode a valid hotel room key. Hotel lock systems normally require their compatible encoder, SDK or encoding method.
Typical control sequence
Host Application → Move Card to Encoding Position → Encode / Verify → Dispense Card If Encoding Fails → Route Card to Reject Collection Box
SYSTEM INTEGRATION
Protocol-Based Control for Automated Card Workflows
The SNR-K750L connects to the kiosk host system through RS232 communication. The host application coordinates card movement and determines when the module should dispense, position, return, recycle or reject a card according to the application workflow.
RS232 Communication
Connect the K750L to an industrial PC, embedded controller or kiosk host through an RS232 serial interface.
Card Movement Control
Use protocol commands to control card dispensing, positioning, return, recycling and reject-card handling.
Reader / Encoder Coordination
The host application can coordinate the K750L with an integrated RFID reader or third-party encoder so that card movement and card-data processing occur in the correct sequence.
Development Resources
Communication protocol documentation, SDK/API resources, demo software, test tools and 3D mechanical drawings are available for software and mechanical integration.
APPLICATIONS
Built for Reusable Card Applications
The SNR-K750L is particularly suitable for self-service systems where physical cards are returned, checked and reused instead of being treated as disposable credentials.
Hotel Self Check-in
Issue hotel key cards after reservation verification and room assignment. The original hotel-lock encoder can be integrated for card writing, while returned cards can be recycled for reuse and failed cards routed into the separate reject collection box.
Visitor Card Issuance & Return
Issue temporary visitor or access cards during registration, accept returned cards at checkout and return reusable cards to the card supply for future visitors.
Membership & Access Systems
Automate the issuing and return of reusable RFID membership, identification or access cards in unattended credential-management systems.
Equipment Rental / Reusable Credentials
Use the K750L in applications where the same physical RFID credentials circulate repeatedly between the terminal and users and exception cards need to be separated from the reusable card pool.
MODEL SELECTION
K750L or K750C: Do Returned Cards Need to Be Reused?
Both the SNR-K750L and SNR-K750C support automatic card issuing and separate handling of returned or exception cards. The main difference is whether accepted returned cards need to go back into the reusable card supply.
SNR-K750L:
Designed for reusable-card workflows. Accepted returned cards can be recycled into the reusable card supply, while invalid or failed cards can be routed into a separate reject-card collection box.
SNR-K750C:
Designed for card issuing plus separate collection. Returned, rejected or retained cards are stored in the collection box and are not automatically returned to the reusable card supply.
Choose K750L when automatic card reuse is part of the system workflow. Choose K750C when issuing and separate card collection are sufficient.
TECHNICAL SPECIFICATIONS
SNR-K750L Technical Specifications
Key card-handling, communication and operating specifications for evaluating the SNR-K750L in self-service kiosk integration projects.
CARD HANDLING
Card Standard
ISO/IEC 14443 Type A / Type B ISO/IEC 15693
Supported RFID Cards
MIFARE S50 / S70, UL Card MIFARE Plus, MIFARE DESFire
Card Size
CR80 / 85.6 × 54 mm class cards
Card Thickness
0.7–1.3 mm
Hopper Capacity
50 / 100 / 150 cards
Card Operations
Dispensing / Return / Recycling / Reject Collection
INTERFACE & CONTROL
Communication Interface
RS232 Serial Interface
Control Method
Protocol Command Control
RFID Reader / Encoder
Integrated RFID or Third-Party Reader Integration
Card Status Alerts
Card Entry / Few Card / Power-On
Few Card Alert
Approx. 10 Cards
POWER & ENVIRONMENT
Power Supply
DC 24V
Working Current
Idle: <100 mA Peak: <2000 mA
Operating Temperature
0°C to 50°C
Operating Humidity
30%–90% RH
Drive Parts Lifetime
500,000 Cycles
Weight
Approx. 2.0 kg
INTEGRATION FAQ
SNR-K750L Integration FAQ
Common questions about card recycling, RFID reader integration, communication and kiosk installation.
What is the main purpose of the SNR-K750L?
The SNR-K750L is designed for applications that need automatic card issuing together with returned-card recycling. Accepted returned cards can go back into the reusable card supply for subsequent issuing, while invalid or failed cards can be routed into a separate reject-card collection box.
Can returned cards be reused automatically?
Yes. The K750L supports a reusable-card recycling workflow in which accepted returned cards can be transferred back into the reusable card supply and issued again during later transactions.
What happens to invalid or failed cards?
Invalid, failed or designated cards can be routed into a separate reject-card collection box instead of being returned to the reusable card supply. This allows reusable cards and exception cards to be handled separately.
Can the K750L integrate a third-party reader or encoder?
Yes, when the reader or encoder dimensions, installation position, antenna or reading distance and software workflow are compatible with the module. Mechanical and functional compatibility should be evaluated before the kiosk enclosure is finalized.
Can K750L be used with hotel key-card systems?
Yes. For hotel projects, the K750L can position the card for an original or compatible hotel-lock encoder. The hotel PMS or check-in application controls the workflow and calls the encoder to write the room credential before the K750L dispenses the card.
Is a generic RFID reader enough for every hotel key-card system?
No. Using the same RFID frequency or MIFARE card family does not guarantee compatibility with a hotel lock system. Hotel room-key encoding normally requires the lock system’s compatible encoder, SDK or encoding method.
What integration resources are available?
We provide communication protocol documentation, SDK/API resources, demo software, test tools and 3D mechanical drawings to support software development, functional testing and kiosk enclosure design.
What card thickness does the SNR-K750L support?
The SNR-K750L supports cards with a thickness of approximately 0.7–1.3 mm. Actual cards should be tested before volume production, especially if they use unusual materials, surface coatings, embossing or non-standard construction.
RELATED PRODUCTS
Explore Other Card Handling Modules
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PROJECT SUPPORT
Integrating the SNR-K750L Into Your Kiosk?
Tell us your card size and thickness, card technology, return and recycling workflow, reader or encoder model, host platform and expected project quantity. We can help evaluate the appropriate K750L configuration and provide the technical resources needed for prototype integration.
SDK/API · Communication Protocol · Test Tools · 3D Drawings Available