Jin Liu — Structural Engineer at KENRONE Jin Liu Structural Engineer at KENRONE Jin Liu joined KENRONE in 2024 as a Structural Engineer. He works on the lock-body, component, and assembly design of KENRONE's battery-free NFC locks — preparing engineering drawings and supporting prototype validation, structural testing, and production improvements to ensure products are robust, reliable, and ready for mass production. He holds a bachelor's degree. Company: KENRONE — NFC Battery-Free Lock Manufacturer R&D Team: KENRONE Engineering Team

Compact round-knob cam lock for cabinet and enclosure retrofits. Tap an NFC phone to unlock — no batteries inside the lock, no keys to track. Drops into standard cam lock cutouts. Home / NFC Cam Lock / KR-NFC-CL5126 / Round Knob NFC Keyless Cam Lock KR-NFC-CL5126 Characteristics Round-profile design preferred Unlock by rotating the whole lock body after NFC authorization For access points requiring quick, intuitive operation Specifications Material : ABS+20%PC Size : Ø 51.48*48.5 mm Door thickness : ≤16 mm Customization : Structure • Dimensions • Appearance Protection class : IP65 Operating environment : -25°C~+65°C/10%~90%RH Unlock method : Mobile phone Reverse Power&NFC APP Applications : Wooden Locker,Metal Locker, etc. Dimension line drawing Similar products KR-NFC-CL3515 Through the EU CE, ROHS certification and FCC certification KR-NFC-CL75 Through the EU CE, ROHS certification and FCC certification

Compact 82mm disc padlock for lockers, gates, and storage doors. Tap an NFC phone to unlock — no batteries in the lock body, no keys to copy. Hardened steel shackle resists bolt cutters. Home / NFC Padlock / KR-NFC-PL82 / NFC Battery-Free Discus Padlock KR-NFC-PL82 Characteristics Discus Padlock form factor, no structural changes Inspections and temporary access points Removable lock for multi-asset reuse Specifications Material : Zinc alloy Size : Lock Beam Ø 9 mm & Ø 82*H34 mm Surface treatment : Polished + Plating + Pearl chrome Customization : Structure • Dimensions • Appearance Protection class : IP65 Operating environment : -25°C~+65°C/10%~90%RH Unlock method : Mobile phone Reverse Power&NFC APP Applications : Containers, Dive-up storage, Self-storage,etc. Dimension line drawing Similar products KR-NFC-PL96 Through the EU CE, ROHS certification and FCC certification KR-NFC-PL4046 Through the EU CE, ROHS certification and FCC certification

Visit the KENRONE support center for NFC lock app installation, user guides, product tutorials, videos, downloads, and technical help. Support Center Need help with your NFC battery-free lock? Start here. Resource Center Everything You Need to Specify About us Focused on NFC battery-free lock Learn About Us OEM ODM Provides ODM and OEM support Know More APP Download using the KENRONE NFC App Get APP User Manuals Installation and operation guides. Read Manuals Video Watch our rich product videos Watch Videos Blog Find out more about NFC Battery-free Lock View Articles Solution Discover NFC battery-free lock system solutions Triggering Inspiration Contact Send us your product model and issue. Start Collaborating

Zion Zhang — Structural Engineer at KENRONE Zion Zhang Structural Engineer at KENRONE Zion Zhang joined KENRONE in 2022 as a Structural Engineer. He designs the lock bodies, components, and assembly structures for KENRONE's battery-free NFC locks, producing engineering drawings and carrying them through prototype validation, structural testing, and production refinement so that products are secure, reliable, and suited to volume manufacturing. He holds a bachelor's degree. Company: KENRONE — NFC Battery-Free Lock Manufacturer R&D Team: KENRONE Engineering Team

Discover NFC battery-free lock system solutions from KENRONE. Designed for cabinets, equipment, and distributed assets, our locks support phone unlocking, access management, and unlock records. Solutions One battery-free platform. Every locking scenario. Explore Solutions Talk to the factory / Solutions / Self Storage Access Control Self Storage Solution Give tenants keyless access to their unit and manage the whole facility remotely — grant, transfer or revoke access without visiting the site or re-keying. Cabinet Locking Cabinet Locking Solution Secure high-value infrastructure and sensitive documents with keyless, audited access — no drilling for power, no cabling. Server Cabinet Locking Protect data-centre racks and IT infrastructure with per-user access logs. Electrical Cabinet Locking Restrict power-distribution and control panels to authorized technicians. File Cabinet Locking Control who opens document and record storage, with a full audit trail. Locker Locking Locker Locking Solution Flexible access for personal and communal lockers — assign a locker for a term, or rotate it between users on demand. Assigned / Private Locker One user, one locker — for schools, gyms and workplaces. Shared / Rotating Locker Multi-user access for gyms and communal spaces, freed and reassigned instantly. Explore solutions Purpose-built for how spaces are actually secured Each solution runs on the same NFC lock family and the same management app. Self-storage Electrical cabinets File cabinets School lockers Gym lockers Employee lockers Vending machines Game consoles Server cabinets Luggage storage Mailboxes Secure cash boxes Applications Twelve places KENRONE locks go to work The same battery-free NFC platform adapts across industries and enclosures. Not sure which solution fits? Tell us about your cabinets, lockers or facility and we’ll recommend the right lock and workflow — OEM/ODM options available. Talk to our team OEM ODM

Hudson Hu — Electronics Engineer at KENRONE Hudson Hu Electronics Engineer at KENRONE Hudson Hu has 10 years of experience in the electronics field and joined KENRONE in 2020. He develops the circuitry, PCB layout, embedded firmware, and electronic functions of KENRONE's locks, and works hands-on through prototype debugging, functional testing, and production optimization to keep products running reliably. He holds a bachelor's degree. Company: KENRONE — NFC Battery-Free Lock Manufacturer R&D Team: KENRONE Engineering Team

We provides ODM and OEM support for NFC battery-free locks, including custom structures, applications, branding, and project-based lock solutions. OEM & ODM NFC Battery-Free Locks Turn your NFC smart locking idea into a production-ready product. KENRONE supports brands, distributors, integrators, and project owners with custom NFC battery-free lock hardware, app connection options, packaging, inspection, certification support, and global delivery. Request OEM Quote View Project Flow Built for project-based supply Use one NFC access platform across cam locks, padlocks, Euro cylinders, storage cylinders, key boxes, bike locks, and custom formats. Factory OEM and ODM for standard or custom lock bodies Logo, color, material, credential, packaging, and app-flow options Sample-first project flow before batch production CE, FCC, RoHS, and target-market documentation support Project Flow OEM/ODM process with practical time checkpoints. Every project starts with a clear RFQ, sample confirmation, and production feasibility review. Final timing depends on lock format, tooling, firmware, packaging, test scope, and certification requirements. 01 Submit Requirements Share product type, quantity, application, target market, access workflow, and customization request. RFQ day 0 02 Sample Confirmation KENRONE recommends the closest standard SKU, prepares sample units, and confirms core dimensions and unlock flow. 2-4 weeks 03 Custom Development Logo, housing, material, firmware, credential, packaging, or app connection details are developed against the approved spec. By scope 04 Pilot Production Small-batch production validates tooling, assembly, inspection points, packaging, and operating instructions. 2-3 weeks 05 Quality Inspection Function, appearance, packaging, quantity, and project-specific test items are checked before shipment. Before ship 06 Delivery & Logistics Goods are packed for export and delivered by courier, air freight, sea freight, or customer-appointed forwarder. By route Customizable Items Configure the product surface, access method, and customer experience. Use light customization for faster launch, or deeper ODM development when your project needs a special structure, credential flow, app skin, or accessory package. Branding Logo & Brand Identity Laser engraving, printed logo, product label, user manual, and brand-aligned packaging artwork. Industrial Design Housing Color & Material Exterior color, surface treatment, shell material, lock-body finish, and accessory matching. Access Workflow Credential Type NFC phone tap, app account flow or system integration options. Retail & Project Supply Packaging Design Color box, blister pack, brown box, accessory kit, barcode label, installation card, and export carton design. Customization can be applied across NFC cam locks, padlocks, cylinders, storage locks, cable locks, key boxes, and project-specific hardware. MOQ & Lead Time Reference quantities and delivery timing for planning. The figures below are planning references. KENRONE can confirm the final MOQ, unit cost, tooling cost, packaging cost, and lead time after reviewing your RFQ and selected lock format. Sample Order For fit testing, app workflow review, and internal approval before customization. 1-5 pcs Standard SKU samples available by project Batch Order For OEM supply using standard hardware with logo, packaging, or light configuration changes. 100+ pcs Common starting point for production quotation ODM Project For housing changes, special structure, firmware adjustment, app flow, or new accessories. By spec Tooling and validation scope affect MOQ Project Type Typical Scope Sample Lead Time Mass Production Lead Time Notes Standard OEM Existing lock type, logo, label, carton mark 1-2 weeks when stock is available 3-5 weeks after order confirmation Fastest path for distributors and project pilots. Brand Package OEM Logo, manual, retail box, accessory kit 2-4 weeks after artwork confirmation 4-6 weeks after packaging approval Packaging proof and barcode/label rules should be confirmed early. Functional ODM App flow, credential rules, firmware or structure changes 4-8+ weeks depending on development 6-10+ weeks after validation Timeline depends on R&D, tooling, test plan, and target market. Certification Support Documents for market entry and project approval. KENRONE can provide or support corresponding certification documents according to target markets, product type, and customer compliance requirements. CE European market compliance support for eligible products. FCC US market radio and electronic product documentation support. RoHS Materials safety documentation for regulated markets. ISO Factory and quality system documentation for supplier review. RFQ Form Send the information KENRONE needs to quote your OEM/ODM project. Clear requirements help reduce back-and-forth and make sample, tooling, production, certification, and logistics estimates more accurate. Talk to the factory Email sales@kenrone.com Tel / WhatsApp +86 153 6019 3224 Headquarters Build11, Liandong U Valley, Zhenye Road, Sanhe Street, Huiyang District, Huizhou, Guangdong, China Contact Us * Name * Email * Phone * What are you looking for ? - Select - Message Submit

Battery-free NFC electronic cabinet locking system for server, file, and electrical cabinets. Drop-in retrofit, every access recorded, one platform across your facility. Smart Cabinet Locks — Battery-Free NFC Cabinet Access Control System Replace shared keys with smartphone NFC access across your facility. KENRONE smart cabinet locks require no in-lock batteries, no wiring, and record authorized unlock events for cabinet-level access management. Talk to Our Lock Engineers Find the Right Cabinet Lock Solution No physical keys to issue, collect, copy, or re-key No in-lock batteries to replace across distributed cabinets Authorized unlock records with time, user identity, and lock ID Cloud-connected and offline app options available Cam lock, padlock, and project-specific form factors API & SDK for facility, IT, HR, or EHS system integration Home / Solutions / Cabinet Locking Solution / §01 The Platform One Cabinet Access Platform, Many Cabinet Access Problems Cabinets look simple until they are spread across departments, facilities, branches, remote sites, and contractors. A server cabinet has a different owner than an office file cabinet. An electrical control cabinet carries a different safety context than a records cabinet. A network closet, medicine cabinet, tool cabinet, and outdoor enclosure each has its own access problem. But the old locking model is usually the same: a shared mechanical key, a copied master key, or a battery-powered smart lock that becomes another maintenance item. KENRONE battery-free NFC smart cabinet locks replace that model with a single access platform. The smartphone acts as the credential — and the power source. The lock stays passive, sealed, and battery-free. Access rights are assigned, revoked, and managed through the app. Authorized unlock events are recorded for cabinet-level accountability. Different cabinet types share one credential and administrator workflow. §02 Choose Your Solution Choose the Right Cabinet Access Solution Whether you call them keyless cabinet locks, digital cabinet locks, or electronic cabinet locks, they all solve the same problem — different cabinets need different levels of access control, documentation, and hardware fit. IT · NETWORK · SECURITY · COMPLIANCE Server Cabinet Access Control Server cabinets, network closets, remote IT enclosures, branch-office ITcabinets. Solves remote access, key handoff, cabinet-level audit logs, andno battery-service trips. Explore solution OFFICE · HR · LEGAL · HEALTHCARE File Cabinet Locking Solution File cabinets, records cabinets, HR/legal/medical document storage. Solvesstaff turnover, lost keys, re-keying cost, and privacy-document accessrecords. Explore solution FACILITIES · EHS · MAINTENANCE Electrical Cabinet Access Control Electrical cabinets, control panels, maintenance enclosures, facility accesspoints. Restricts access to authorized personnel and documents cabinet-level unlocks. Explore solution PROCUREMENT · OPERATIONS · OEM/ODM Custom Cabinet Locking Project Review Tool cabinets, storage cabinets, utility enclosures, custom cabinets.Removes shared keys and standardizes cabinet access across mixedhardware. Start project review More Cabinet Applications Tool cabinets — workshop and field service tool storage with multi-user access Medication cabinets — controlled-substance and pharmacy storage with named-user access records Telecom and outdoor cabinets — distributed network and utility enclosures requiring battery-free reliability Lab cabinets and chemical storage — restricted-access cabinets in research and laboratory environments Evidence and document custody — chain-of-custody cabinets in legal, law enforcement, and corporate compliance EV charging and battery storage cabinets — emerging electrical infrastructure applications If your cabinet application is not listed here, talk to us . The locks fit standard cam lock cutouts across most industrial and commercial cabinet hardware. §03 How It Works How Battery-Free NFC Cabinet Locks Work The lock has no internal battery. When an authorized smartphone is tapped against the lock, the phone's NFC field provides the small amount of power needed to verify the credential and release the mechanism. 01 An authorized user taps the lock with a supported NFC phone. 02 The phone powers the lock through NFC. 03 The lock verifies the credential. 04 The cabinet unlocks in about 1–2 seconds. 05 The authorized unlock event is recorded — time, user identity, lock ID. This design removes the two biggest problems of cabinet access control: physical keys and battery maintenance . Two app deployment models are available. Two app versions are available A cloud-connected version that syncs access records to a central administrator dashboard in real time, and a fully offline version where records stay on the user's phone and the administrator's device — for remote utility sites or environments where network independence matters. The result is a passive cabinet lock deployed without wiring, without PoE, without replacing the cabinet, and without planning battery-service visits. §04 The Hidden Cost The Hidden Operational Cost of Distributed Cabinet Fleets A single cabinet lock is a simple object. A hundred cabinet locks across multiple sites is an operational category — and that category usually goes unbudgeted. The cost of running a cabinet fleet sits mostly outside the lock body. It shows up in the operational work that touches every cabinet, repeatedly: 01 Key issuance and tracking Every new employee, contractor, or vendor who needs cabinet access generates a key handoff or a new lock-and-key pair. Records of who has which key tend to drift out of date within months in most facilities. 02 Re-keying after turnover When the wrong people leave with copies of the master key, the most common remedy is replacing locks. At scale this becomes a recurring expense rather than a one-time event. 03 Battery service trips Battery-powered smart locks introduce a maintenance category that scales with cabinet count. Forty cabinets across twelve sites turn into a quarterly logistics problem. 04 Wiring runs that rarely get approved Electric strikes and fully wired access control often do not make economic sense at cabinet scale — the conduit, PoE budget, and labor cost per cabinet typically exceeds the value of the lock itself. 05 Missing access records When an auditor, incident reviewer, or security investigator asks who opened a cabinet, the answer is often reconstructed from memory, a paper sign-in sheet, or a borrow-key spreadsheet that has not been updated in weeks. A battery-free NFC cabinet lock is built to reduce that operational category — by eliminating physical keys, removing in-lock batteries, and producing authorized unlock records automatically. §05 Comparison Mechanical vs Battery-Powered vs NFC Battery-Free Mechanical locks are simple but do not identify the user. Battery-powered smart locks add digital access but also add maintenance. Battery-free NFC locks are designed for cabinets where wiring is impractical, batteries are undesirable, and named-user records matter. Feature Mechanical cabinet lock Battery-powered smart lock Battery-free NFC smart lock Best use case Low-change cabinets Staffed environments with battery service Keyless, battery-free access Integration potential No Vendor-specific API / SDK for custom integration Retrofit potential High Varies High for cam-lock or compatible hardware Distributed maintenance Key logistics Battery logistics Lower maintenance burden Credential revocation Re-key or collect key App-based App-based Access records No Yes, if powered and configured Authorized unlock events recorded Wiring required No Sometimes No Battery inside lock No Yes No Key management High overhead Low None for physical keys Unlock method Physical key App, RFID, keypad, or card Smartphone NFC tap §06 Specifications Smart Cabinet Lock Platform Specifications Product platform Battery-free NFC smart cabinet lock system Customization OEM / ODM support available by project Certifications CE, FCC, RoHS Integration API & SDK available Access modes Multi-user admin-managed / single-user 1:1 assignment Phone compatibility NFC-enabled Android & iOS Ingress protection IP65 ; other form factors per project Operating temperature −20°C to 65°C Body material Zinc alloy (standard cam-lock variants) Main lock formats Cam lock, padlock or custom form factor by project Standard cam-lock cutouts 19mm / 22mm Typical unlock time 1–2 seconds Internal lock battery None Power source Phone NFC field during unlock interaction Primary unlock method Smartphone NFC tap Request Datasheet & Installation Guide → Know more about NFC battery-free cam lock → Know more about NFC battery-free padlock → §07 Why KENRONE Why KENRONE. About Kenrone : We have manufactured locks for over two decades, including projects across industrial, utility, and facility-management environments. 01 Factory-direct. No layers between the production line and your project. Pricing reflects what the hardware actually costs to build. 02 CE, FCC, and RoHS certified. Full certification documentation available on request. 03 Flexible order sizes. From pilot quantities to large rollouts, MOQ is set per project, not per catalog. 04 OEM and ODM ready. Custom housing, branding, mechanical interfaces, and firmware-level adjustments are part of our regular workflow. 05 Open integration platform. Documented APIs and SDKs let you integrate unlock, credential management, and access records into FM software, EHS platforms, SCADA, or custom apps. 06 Complete English documentation. Datasheets, installation guides, and integration notes for every product line. §08 Talk to Us Tell Us What Cabinets You Need to Secure We will recommend the right lock format, app model, access workflow, and next step for your project. Contact Us * Name * Email * Phone * What are you looking for ? - Select - Message Submit

Contact KENRONE for NFC battery-free lock pricing, OEM enquiries, and technical support. Email sales@kenrone.com or WhatsApp +86 153 6019 3224. Contact us For any inquiries, please contact Kenrone through the channels below > Contact Us > Partnership & Inquiries Phone +86 153 6019 3224 Email sales@kenrone.com Whatsapp +86 153 6019 3224 Contact Us * Name * Email * Phone * What are you looking for ? - Select - Message Submit The address of our company Our company is located in : Build11, Liandong U Valley, Zhenye Road, Sanhe Street, Huiyang District, Huizhou, Guangdong, China Follow Us Contact KENRONE for more free professional consultation. Let us assist you in upgrading your management solutions.

Rectangular wing-knob cam lock for one-hand operation on managed cabinets. NFC phone tap unlocks — zero batteries in the lock body, zero key inventory. Built for retrofit projects. Home / NFC Cam Lock / KR-NFC-CL3515 / Wing Knob NFC Keyless Cam Lock KR-NFC-CL3515 Characteristics Protruding body preferred for easier handling Small lever-style rotary switch operation Projects requiring consistent appearance Specifications Material : ABS Size : 153*40*51.45 mm Door thickness : ≤22 mm Surface treatment : Silver Spray Coating Customization : Structure • Dimensions • Appearance Operating environment : -25°C~+65°C/10%~90%RH Unlock method : Mobile phone Reverse Power&NFC APP Applications : Wooden Locker,Metal Locker, etc. Dimension line drawing Similar products KR-NFC-CL5126 Through the EU CE, ROHS certification and FCC certification KR-NFC-CL75 Through the EU CE, ROHS certification and FCC certification

NFC digital locker lock for assigned employee, staff, and faculty lockers. One locker per person, instant access changes on turnover, no in-lock batteries. Employee Locker Locking — one locker, one person , no keys. Give each person their own locker without keys, coins, or padlocks. Assign a locker to one named user in the app; remove them in seconds when they leave. No in-lock batteries, every authorized unlock recorded. Talk to us See how assignment works 1 locker = 1 user Binding None Battery in lock Authorized unlocks Access Home > Solutions > Locker Locking Solution > Assigned Locker Locking > Fit & Retrofit Fits your existing lockers — no wiring, no re-build. Most metal lockers use a standard cam-lock cutout. NFC battery-free cam locks fit these cutouts directly — no drilling, no wiring, no locker replacement. Standard cam-lock cutouts — direct fit on common locker hardware. No power run, no PoE, no electrician on the job. Convert gradually, one locker bank at a time, on your own schedule. A typical swap takes a few minutes per locker with a screwdriver. Not sure it fits? Check Locker Compatibility Send a photo of your locker hardware and we'll confirm fit before we begin the collaboration. → Cutout dimensions: NFC Cam Lock product page The Core Idea The end of “bring your own padlock.” In most workplaces, personal lockers run on whatever lock the employee brought: a padlock, a combination dial, or a key on a crowded keyring. The facility owns the locker but not the lock — so when someone leaves, the lock leaves with them, or worse, stays behind with no one holding the combination. A KENRONE NFC lock makes the locker the facility's again. The compartment is assigned to one named person in the app. The person opens it with a tap of their phone. No padlock to supply, no combination to distribute, no key to collect on the last day. Turnover & Access Onboarding and offboarding in seconds. Assigned lockers are only as secure as your last staff change. With keys and padlocks, every departure is a small security gap. With NFC single-user mode, the locker is a 1:1 binding between one compartment and one named person. STEP 01 Assign Bind the locker to one named user in the app. STEP 02 Open That user taps their phone; the authorized unlock is recorded with user, time, and locker ID. STEP 03 Revoke Remove access on exit or transfer — instantly, no re-key, hardware untouched. Schools & Institutions Assigned lockers for schools and institutions. Schools and campuses run the same assigned-locker pattern: a faculty or staff member keeps a locker for a term or a year, and administration needs to manage who holds what — without a drawer full of master keys. For faculty lockers, staff rooms, departmental tool and equipment lockers, and administrative storage , KENRONE NFC locks replace built-in key locks and combination locks with app-based assignment and an unlock record — no master-key control chart to maintain, no re-keying between terms. Where this fits Faculty & staff lockers Staff rooms and changing areas Departmental tool / equipment lockers Administrative & records storage Where it does not Student 1:1 device lockers Phone / tablet charging lockers Any locker meant to store the user's phone Because the smartphone powers and opens the lock, it can't secure a locker whose purpose is to store that phone. Those programs need a card-based or powered system — we say so up front to save you a wasted evaluation. Maintenance A wall of lockers, zero batteries. A row of assigned lockers is a fleet. Battery-powered electronic locks turn that fleet into a recurring service schedule — every locker becomes a cell to track and replace. NFC battery-free locks remove the category entirely: the phone supplies the small amount of power needed for each unlock, so there is nothing inside the lock to drain or replace. Honest Limits What this lock is and isn't for. Suitable for Personal / assigned employee lockers Staff & faculty lockers Tool & equipment lockers Administrative storage Indoor & semi-indoor locker rooms Not for Lockers meant to store the user's own phone (the phone is the key) Student 1:1 device lockers Charging lockers Outdoor lockers below −20°C or above 65°C Operating temperature −20°C to 65°C. For anything outside this, talk to us before specifying. Key Differences Key differences for assigned lockers. For the full comparison across all lock types, see the Locker Solutions overview → . For assigned lockers specifically: Attribute Member's padlock Battery electronic NFC battery-free Unlock recorded No If powered Yes Battery in lock None Required None Assign / revoke one user No App App, no re-key Lock supplied by facility No Yes Yes The hardware. Full hardware specs, datasheet, and API/SDK reference live on the product page. NFC Cam Lock product page Talk to Us Tell us about your lockers. We'll recommend the right lock format, access mode, and next step for your project. Contact Us * Name * Email * Phone * What are you looking for ? - Select - Message Submit FAQ Frequently asked questions Can a locker be assigned to one specific person? Yes. Single-user mode binds one locker to one named user; it's a 1:1 assignment managed in the app. What happens when an employee leaves? Revoke their access in the app. The hardware isn't touched and the locker can be reassigned immediately — no re-keying. What if someone's phone battery dies? You can authorize a backup user (e.g. a supervisor or facilities admin) for any locker, so there's always a second phone able to open it. Do these work for school lockers? For faculty, staff, and administrative lockers, yes. For student 1:1 device lockers — where the phone is stored inside — no; those need a card-based or powered system. Do the locks need batteries or wiring? No to both. The phone powers the lock over NFC during the unlock; the lock needs no wiring. How many lockers can I start with? MOQ is set per project, from pilot quantities to full rollouts.