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Medeco High-Security Cylinders
UL437-certified high-security cylinders that drop into virtually every commercial lock we install — Schlage ND, Sargent 10X, Corbin CL3300, Yale 5400LN, Best 9K, and every mortise, rim, and exit device we service. Factory-authorized Medeco dealer for Brevard County.
Parent company: ASSA ABLOY High Security and Aftermarket Group (HSAM) · Founded 1968 · HQ Salem, VA
About Medeco
Medeco was founded in 1968 in Salem, Virginia, with an inventive approach to making cylinders and keys more secure from surreptitious duplication and manipulation. The angled pin cut design — pins that must both elevate AND rotate to correct positions for the sidebar to clear and the cylinder to turn — was unprecedented in the lock industry and remains the foundation of Medeco\'s security architecture today. Over five decades later, Medeco is widely recognized as the North American benchmark for high-security cylindrical key control, trusted by federal government, DEA-regulated pharmacies, utilities, healthcare, courts, and critical infrastructure operators across the United States.
Medeco is part of the ASSA ABLOY High Security and Aftermarket Group (HSAM), alongside other high-security brands. Manufacturing continues at Salem, VA with the same engineering rigor and patent portfolio that defined the brand before ASSA ABLOY acquisition. Medeco cylinders are certified to UL437 for drill and pick resistance, ANSI/BHMA A156.30 Level A for high-security cylinders (Medeco was the first commercial product certified to this standard when BHMA introduced it), ANSI/BHMA A156.5 Grade 1 for cylindrical lock durability, and ANSI/BHMA A156.36 for deadbolts. The Medeco Maxum deadbolt has been recognized by Consumer Reports as "Best Door Lock" multiple times.
Key-En-Lock is the Brevard County authorized Medeco dealer. We carry restricted Medeco M3 and M4 blanks in stock, handle factory-authorized rekeys on-site, design and administer master key systems for multi-building facilities, and retrofit Medeco cylinders into existing commercial hardware across every brand we service. Our 20+ years of locksmith experience means we can drop Medeco cylinders into your Schlage, Sargent, Corbin Russwin, Yale, Best, Marks USA, or virtually any other commercial lockset without modification — and manage the key control program for decades afterward.
Medeco Product Lines
Current Medeco lineup spans UL437 high-security, patented-key-control BiLevel, electromechanical CLIQ/XT, and dedicated deadbolt housings. All platforms master-key together.
| Platform | Category | Description |
|---|---|---|
| Medeco 4 (M4) | Current flagship · High Security | Latest generation. 4 side pins (3 finger pins + 1 lift pin), utility-patented key control with Anti-3D-Printing movable key elements. UL437 drill and pick resistance, ANSI A156.30 Level A certification, ANSI A156.5 Grade 1, ANSI A156.36 (deadbolts). |
| M4 BiLevel | Patented key control only | Same patented key control as M4 but without full pick/drill resistance features. Mid-tier option for facilities that need key duplication control but don't need UL437 attack resistance. Master-keys into M4 systems. |
| Medeco³ (M3) | Legacy flagship · still produced | Previous-generation high-security platform. UL437, ANSI A156.30, A156.5 Grade 1. Widely deployed across government and commercial — still produced for buildings with existing M3 key systems. Master-keys with M4. |
| M3 BiLevel | Patented key control only | Patented key control without pick/drill resistance. Mid-tier with M3 systems. |
| Medeco Maxum Deadbolt | ANSI Grade 1 deadbolt | M3/M4 cylinder integrated into an ANSI Grade 1 deadbolt housing. 1" hardened steel bolt, hardened steel shroud for ice-pick/crowbar resistance. Consumer Reports "Best Door Lock" multiple times. Available single/double cylinder. |
| Medeco CLIQ | eCylinder · electromechanical | Battery-in-key electromechanical cylinder with audit trail and programmable access schedules. Physical key + electronic credential — defeats duplicate-key attacks with key revocation. Used in utilities, transit, data centers. |
| Medeco XT | eCylinder · previous generation | Earlier electromechanical platform. Still serviced for existing installations. |
| KeyMark | Patented key control · entry tier | Utility-patented keyblank at entry-level price point. No UL437 attack resistance, but protects against unauthorized duplication. |
Commercial Hardware Retrofit — Where Medeco Fits
Cylindrical Lever & Knob Locks (see hub)
| Commercial Hardware | Medeco Format | Order Code | Notes |
|---|---|---|---|
| Schlage ND Series | KIK or SFIC/FSIC | ND80LD / ND80BD / ND80JD | LD = less conventional cylinder; BD = SFIC less core; JD = FSIC less core. Medeco drops into any of the three. |
| Best 9K | SFIC (standard) | 9K SFIC housing | Native SFIC — Medeco SFIC core drops in. Facility-staff rekey workflow preserved. |
| Sargent 10X / 11 Line | KIK or SFIC/LFIC | 10XG05 less cylinder | Medeco fits Sargent less-cylinder variant. Keying cross-reference available. |
| Corbin Russwin CL3300 | KIK or SFIC/LFIC | CL3355 less cylinder | Medeco fits CR less-cylinder chassis. Alternative to CR Access 3® / Pyramid for customers wanting Medeco key control across buildings. |
| Yale / ACCENTRA 5400LN | KIK (direct) | 5400LN-LC | Direct drop-in. Yale/ACCENTRA specifically designs the 5400LN to accept Medeco M3/M4 cylinders as a factory option. |
| Marks USA Survivor 195 | KIK | 195-LC | Medeco fits less-cylinder variant. Common spec for federal / BAA-compliant projects combining US-made chassis with US-made cylinder. |
| Falcon W Series | KIK or SFIC | W581-LC | Grade 2 chassis + Grade 1 cylinder upgrade path. Common budget-commercial upgrade. |
| Kwikset Commercial | KIK | 800CV-LC | Medeco drops into Kwikset Commercial non-SmartKey variant. Upgrades light-commercial to UL437. |
| PDQ / TELL / LSDA | KIK | Less-cylinder option | All budget Grade 2 commercial lines accept Medeco retrofit cylinders. |
Mortise Locks (see hub)
| Commercial Hardware | Medeco Format | Order Code | Notes |
|---|---|---|---|
| Schlage L9000 / L9080 | 1-1/8" mortise | L9080-LC with Schlage cam | Direct Medeco drop-in. Cam options cover all L-series functions (F07/F08/F13/F14/F20/F32). |
| Sargent 8200 | 1-1/8" mortise | 8204 less cylinder | Medeco with Sargent cam. Alternative to Sargent KESO or Signature for facilities wanting Medeco systems. |
| Corbin Russwin ML2000 | 1-1/8" mortise | ML2057-LC | Medeco with CR cam. Alternative to CR Access 3® / Pyramid. |
| Best 45H | 1-1/8" mortise or SFIC | 45H-SFIC | Best 45H native SFIC accepts Medeco SFIC core directly. Full keyway flexibility. |
| Yale / ACCENTRA 8800 | 1-1/8" mortise | 8808-LC | Medeco with Yale cam. Common spec for healthcare and institutional. |
Exit Devices & Rim Cylinders (see hub)
| Commercial Hardware | Medeco Format | Order Code | Notes |
|---|---|---|---|
| Von Duprin 99/98 | Rim cylinder | Rim w/ VD cam | Medeco rim cylinder with Von Duprin cam pattern. Standard exit device trim upgrade. |
| Jackson 1085/1090 | Rim cylinder | Rim w/ Jackson cam | Medeco rim cylinder fits Jackson storefront rim exit trim. |
| Dor-O-Matic 1690/2090 | Rim cylinder | Rim retrofit | Medeco rim drop-in for Dor-O-Matic vertical rod exits. |
| Corbin Russwin ED5200 | Rim cylinder | Rim w/ CR cam | Medeco rim fits ED5200/ED4200 exit device trim. |
| Falcon 25 / 19 Series | Rim cylinder | Rim retrofit | Medeco rim for Falcon rim and mortise exit devices. |
| Marks USA M9900 | Rim cylinder | Rim retrofit | Medeco rim fits M9900 exit trim. Both US-made. |
| Adams Rite Storefront | Mortise / Deadbolt | MS1850 less cylinder | Medeco mortise with Adams Rite cam fits MS1850 deadbolts on aluminum storefronts. |
Also compatible with Emtek designer residential entry sets, most residential deadbolts, and custom mortise applications. If your lock accepts a standard 6-pin KIK, 1-1/8" mortise, or rim cylinder, it accepts Medeco.
Cylinder Formats
Medeco produces cylinders in every format commercial hardware uses. Over 100 cylinder variants across the catalog cover virtually every retrofit need.
- Rim cylinder — Mounts on the interior surface of the door, threaded shell connects to exit device or rim lock. The standard format for retrofitting exit devices (Von Duprin 99, Jackson 1085, etc) and mortise rim locks.
- Mortise cylinder (1-1/8"-32) — Threaded mortise cylinder screws into mortise lockbody. Standard ANSI spec — fits virtually every commercial mortise lock from Schlage L9000 to Yale 8800. Cam options per manufacturer (Schlage cam, Sargent cam, Yale cam, CR cam, Adams Rite cam).
- Key-in-Knob (KIK) — Conventional 6-pin cylinder that drops into cylindrical lever/knob locks. Standard format for Schlage ND, Sargent 10X, Corbin CL3300, Yale 5400LN, Marks 195, and dozens of other cylindrical lock lines.
- SFIC (Small Format IC) — Figure-8 small-format interchangeable core. Medeco SFIC cores drop into any SFIC-compatible housing — Best 9K, Best 45H, Schlage BD variant, Sargent SFIC, CR SFIC, and others. 30-second rekey via control-key core swap, with UL437 cylinder security.
- LFIC (Large Format IC) — Larger-profile interchangeable core for Medeco-brand LFIC housings and compatible hardware. Alternative to SFIC where higher security volume per core is needed.
- Padlocks (System Series) — Medeco System Series indoor/outdoor padlocks with M3 or M4 cylinder. 5/16" hardened shackle. Used on utility gates, telecom cabinets, and industrial applications requiring UL437 key control on a portable lock.
Key Control Programs
Patented mechanical design is only half the high-security story. The other half is key control — ensuring blanks stay restricted, duplication stays authorized, and you always know who has a key to your facility.
| Program | How It Works |
|---|---|
| Utility-patented keyway blanks | Medeco M3, M4, and KeyMark key blanks carry utility patents. Blanks cannot be legally duplicated without Medeco authorization — Medeco aggressively enforces the patent against unauthorized duplicators. |
| Dealer restriction programs | Every Medeco dealer signs a distribution agreement limiting blank and cylinder sales to authorized customers only. Key-En-Lock is the Brevard County authorized Medeco dealer — we pull your blanks from our restricted inventory. |
| Signature authorization lists | High-security customers maintain an authorized-signature list with Medeco. Only named individuals can authorize key cuts — walk-in key duplication is structurally prevented. |
| Geographic key control | Top-tier Medeco key systems are geographically restricted — only ONE authorized dealer per region can cut a specific keyway. For your region, only Key-En-Lock can cut your keys. Equivalent to Schlage Primus XP tier. |
| Key tracking & records | Medeco customers receive key records per cylinder, key code per cut, and sign-out tracking for every key issued. Compliance-ready for DEA, HIPAA, and government audit requirements. |
| Anti-3D printing (M4) | Medeco 4 keys incorporate movable elements that defeat 3D-printing key duplication attacks. This is an M4-exclusive feature — M3 keys have traditional static geometry. |
Applications
Where Medeco is the default specification across North America:
Federal Government
GSA-listed installations, courthouses, federal office buildings. Medeco's dealer-restricted key control meets federal CUI and classified-facility requirements.
DEA-regulated pharmacy
Pharmacy narcotic safes, compounding rooms, and DEA Schedule II-V storage rooms. Medeco's audit trail and key control satisfy DEA Form 222 and diversion-control requirements.
Healthcare
Hospital pharmacy, medical records, IT rooms, and HIPAA-regulated data storage. Medeco eCylinder (CLIQ) provides audit trail for compliance.
Utilities & Critical Infrastructure
Power substations, telecom cabinets, water treatment facilities. Federal NERC CIP compliance requires keyed access tracking — Medeco delivers.
Courts & Law Enforcement
Evidence storage, court records, detention areas. Medeco's patented key control prevents unauthorized duplication even by disgruntled staff.
Financial Institutions
Bank vaults, branch operations, safe deposit box rooms. Medeco paired with Grade 1 deadbolts and mortise locks on commercial hardware.
Data Centers
Server rooms, colocation cabinets, facility perimeter. Medeco CLIQ eCylinders provide scheduled access with revocation capability.
Custom Residential
High-net-worth residential where the homeowner wants commercial-grade key control behind designer Emtek trim. Drop Medeco cylinders into Emtek entry sets — UL437 protection with luxury aesthetic.
Medeco Services We Provide
As the Brevard County authorized Medeco dealer, we handle end-to-end Medeco specification, installation, rekey, and key control program administration.
- Medeco cylinder rekey — on-site rekey of existing Medeco M3/M4 cylinders at your facility. We are the Brevard County authorized dealer and carry restricted blanks.
- Retrofit into existing commercial hardware — swap out factory cylinders on your Schlage ND, Sargent 8200, Corbin ML2000, Yale 5400LN, Best 9K, or any less-cylinder commercial lock and install Medeco. UL437 security without replacing the lockset.
- Master key system design — multi-building Medeco master systems with construction keying, grand master, and departmental sub-masters. Full documentation and key tracking setup.
- Key control program administration — signature authorization list setup, key issuance records, periodic audit support for DEA / HIPAA / NERC compliance.
- New Medeco installation — full lock specification including Medeco Maxum deadbolts, CLIQ eCylinders, mortise cylinders for commercial mortise locks, rim cylinders for exit devices.
- Upgrade path from legacy Medeco — Medeco Classic → M3 → M4 upgrade paths. Keep existing hardware; swap cylinders only.
- Factory rekey coordination — for large-scale rekey events or facility-wide key system overhaul, we coordinate with Medeco factory keying services.
- CLIQ eCylinder programming — Medeco CLIQ electromechanical cylinders require programming and audit-trail setup. We handle CLIQ / XT implementations.
- SFIC core pinning — on-site pinning of Medeco SFIC cores to your master key system specifications.
- Emergency rekey — lost master key, terminated employee, security breach. 24-hour response for Medeco customers in Brevard County.
Need Medeco Service in Brevard County?
Factory-authorized dealer. On-site rekey, master key system design, commercial hardware retrofit. Restricted blanks in stock.
Call (321) 224-5625Frequently Asked Questions
What makes Medeco "high security" versus a regular commercial cylinder?
Two things: physical attack resistance and patented key control. On physical attack, Medeco cylinders are UL437 listed — the Underwriters Laboratories standard for drill, pick, impression, and manipulation resistance. The key uses angled pin cuts that must elevate AND rotate to correct positions for a sidebar to clear and the cylinder to turn — defeating traditional picking, bumping, and impression techniques. On key control, Medeco key blanks are utility-patented, which means blanks cannot be legally duplicated by hardware stores or unauthorized cutters. Only Medeco authorized dealers can cut keys, and only from authorized signatures on your customer list. A regular Schlage C key can be duplicated at any hardware store in 2 minutes; a Medeco M3 or M4 key cannot.
Can I put Medeco cylinders in my existing Schlage, Sargent, or Yale commercial locks?
Yes — Medeco makes retrofit cylinders for virtually every commercial manufacturer. Standard formats: 1-1/8"-32 UNS mortise cylinder with manufacturer-specific cam options (Schlage cam, Sargent cam, Yale cam, Corbin Russwin cam, Adams Rite cam) fits every major commercial mortise lock. KIK (key-in-knob) 6-pin cylinder fits cylindrical lever locks like Schlage ND, Sargent 10X, Yale 5400LN, Corbin CL3300, and Marks 195. SFIC cores drop into Best 9K, Best 45H, and any SFIC-compatible housing. Rim cylinders fit exit-device trims. See the retrofit matrix on this page for full brand coverage.
What is the difference between Medeco M3, M4, and BiLevel?
Three tiers. Medeco M4 is the current flagship — 4 side pins (3 finger pins + 1 lift pin), UL437 drill/pick resistance, utility-patented key control, ANSI A156.30 Level A, Anti-3D-Printing movable key elements. The top of the product line. Medeco M3 is the previous flagship — still produced, still UL437 certified, still ANSI A156.30 Level A, but without the M4's Anti-3D-Printing features. Existing M3 installations keep running; new specifications typically go M4. BiLevel (M3 or M4) has the patented key control and dealer-restricted blanks but doesn't include the full UL437 physical attack resistance features. BiLevel is for customers who need duplication control (employee turnover, multi-tenant) but don't need drill/pick resistance. All three platforms master-key together cleanly.
Does installing a Medeco cylinder void the UL fire rating on my commercial door?
No. Medeco cylinders themselves are compatible with UL fire-rated hardware. Swapping a factory cylinder for a Medeco cylinder on a UL-listed Schlage ND80PD, Yale 8800 mortise, or any other UL-rated commercial lock preserves the fire rating. The UL listing is on the lockset housing and strike — the cylinder is a consumable that can be swapped within the original housing without affecting UL certification. This is specifically documented in Medeco's UL437 certification.
How do I know a key cut claims to be a genuine Medeco?
Medeco keys have a distinctive angled cut pattern on the bitting edge — the cuts are not flat (like a Schlage or Kwikset key) but angled at various degrees. This angled cut requires a specialized Medeco key machine that only authorized dealers own. Additionally, Medeco blanks carry the utility patent stamp and dealer-restricted serialization. If someone hands you a Medeco-looking key without the angled cuts, or if the key came from a non-Medeco dealer, it's either counterfeit or from a non-authorized source — treat it as a key control breach and rekey.
Is Medeco owned by ASSA ABLOY — how does that affect service?
Medeco is part of the ASSA ABLOY High Security and Aftermarket Group (HSAM), which also includes other high-security brands. The acquisition has been stable for decades and hasn't changed Medeco's engineering, manufacturing, or dealer network — production continues at Salem, Virginia. ASSA ABLOY ownership actually benefits service: Medeco integrates cleanly with other ASSA ABLOY commercial hardware (Sargent, Corbin Russwin, Yale / ACCENTRA) and you can master-key Medeco cylinders across multiple ASSA ABLOY hardware brands in the same building.
Can I rekey Medeco myself, or does it require a locksmith?
Medeco rekeys require an authorized dealer. Unlike Schlage C or Kwikset KW1, you cannot pin a Medeco cylinder with hardware-store pins — the angled pin cuts require Medeco-specific pin stocks available only to authorized dealers. The patented keyway blank can't be legally duplicated outside the dealer network. This is the tradeoff of high-security key control: duplication is restricted to protect you, which means rekeys also go through the dealer. Key-En-Lock is the Brevard County authorized Medeco dealer — we handle all Medeco rekey, repinning, and master-system changes on-site.
How much does a Medeco cylinder cost compared to standard?
A Medeco M3 or M4 mortise or KIK cylinder runs $90–$180 depending on format and keyway tier. Compare to a standard Schlage C cylinder at $15–$30. The 3–6× cost premium buys UL437 physical attack resistance, patented dealer-restricted key control, utility-patent protection against unauthorized duplication, master-keyable depth for multi-building portfolios, and decades of proven performance in government, pharmaceutical, and critical infrastructure applications. For typical office doors this premium is overkill; for openings protecting controlled substances, sensitive data, high-value inventory, or people's safety, it's the standard spec.