CDVI AMA3 Surface Armature Housing for 300 kg Magnetic Locks — An introduction
CDVI AMA3 Surface Armature Housing for 300 kg magnetic locks (SKU F0516000006)is a purpose-built surface-mounted housing designed to receive the armature plate of CDVI 300 kg electromagnetic locks. Finished in a dark grey satin/anodised coating and manufactured from cast/extruded aluminium, the AMA3 provides a neat, robust solution when a recessed armature cannot be installed. Compact, lightweight and designed with installer-friendly features, the AMA3 is aimed at electrical contractors, security installers and facilities teams seeking a reliable surface-mount option for strongholding maglocks.
Key features at a glance
- Compatibility: Designed specifically for CDVI 300 kg magnet families (eg. V3SR, SD300M).
- Material & finish: Cast/extruded aluminium with dark grey metallic / satin anodised finish for durability and an attractive appearance.
- Dimensions: 188 × 54.5 × 15 mm (H × W × D) — compact footprint for most door leaves.
- Weight: Approximately 0.19 kg — lightweight and easy to handle on-site.
- Fixing: M8 tapped hole referenced on distributor detail sheets for secure and straightforward mounting.
- Fire-rated option: EN 1634-2 referenced for wooden doors (EI30) where a fire-rated mounting is required.
- Display tag: ‘300kg Ready’ — explicitly intended to pair with 300 kg holding-force CDVI magnets.
- Warranty: 10 (manufacturer/distributor warranty term as supplied).
Detailed specifications and benefits
The AMA3 is manufactured from a combination of cast and extruded aluminium, balancing strength with a lightweight form factor. The dark grey satin/anodised finish not only looks professional next to modern hardware, but also adds a degree of corrosion resistance compared with untreated metals. For applications where aesthetics matter — office entrances, reception doors or high-visibility public areas — the satin anodised surface blends durability with a discreet appearance.
With external dimensions of 188 × 54.5 × 15 mm and a weight of roughly 0.19 kg, the AMA3 is compact and unobtrusive. Its slim 15 mm depth makes it suitable for door leaves where space is limited or where a flush, low-profile look is preferred. The inclusion of an M8 tapped fixing hole (noted in distributor documentation) supports secure mechanical attachment and aligns with the fixing requirements of 300 kg CDVI magnets.
The housing is designed to marry directly to CDVI’s 300 kg magnet range (for example V3SR and SD300M families). This compatibility ensures correct alignment and contact between the magnet and its armature plate, which is essential for achieving rated holding force and reliable operation. The product is marketed and labelled as ‘300kg Ready’, simplifying specification for installers and procurement teams.
For applications requiring fire-rated hardware, CDVI references EN 1634-2 (EI30 for wooden doors) on regional datasheets for the AMA3 when mounted with the appropriate accessories. Installers should consult the CDVI datasheet and local building/fire regulations when planning a fire-rated installation; correct mounting and integration with the magnet are essential for maintaining the integrity of fire doors and meeting regulatory obligations.
Use cases and scenarios where the AMA3 excels
- Retrofit projects:When replacing or upgrading an existing maglock where the door leaf cannot be easily recessed, a surface armature housing like the AMA3 provides a fast, tidy solution. Its slim profile reduces the visual impact of surface-mount hardware and simplifies on-site modifications.
- New-build installations with limited door depth:In new construction where door leaves are thin or have internal hardware congestion, the AMA3’s 15 mm depth and compact footprint help fit a 300 kg magnet system without complex carpentry.
- Commercial and public buildings:Offices, retail units and institutional sites that use CDVI 300 kg magnets will find the AMA3 useful where aesthetics and durability matter. The satin finish integrates well with other modern metal finishes.
- Wooden fire doors:Where EN 1634-2 compatibility is required, the AMA3’s referenced fire-rated mounting option (as listed on regional CDVI pages) supports compliant installations when the correct accessories and installation practices are followed.
- Rapid installations by service teams:Lightweight and easy to handle, the AMA3 reduces on-site labour time for installers who prefer surface solutions to recessed mounting.
Comparisons with similar products on the market
Surface armature housings are a common accessory for electromagnetic locks, and choices typically vary by material, finish, dimensions and fire compatibility. Here’s how the CDVI AMA3 compares with common alternatives:
Some armature housings are made from stainless steel for maximum corrosion resistance; others use painted steel or plastic to reduce cost. The AMA3’s cast/extruded aluminium with satin anodised finish strikes a middle ground: it is more corrosion-resistant and aesthetically refined than painted steel, while being lighter and typically less costly than heavy stainless solutions.
Recessed armature installations provide the most discreet result but require door modification and sometimes additional mechanical work. The AMA3 offers a compact surface alternative that reduces installation complexity at the expense of a visible surface-mounted housing. Compared with bulkier surface housings, the AMA3’s 15 mm depth is relatively low-profile and a good compromise between visibility and ease of fit.
Not all surface housings are referenced against fire standards. The AMA3’s link to EN 1634-2 information (and EI30 references for wooden doors) makes it more attractive where fire compliance is important. For projects demanding a certified and documented fire-rated solution, the AMA3’s documentation trail and CDVI’s regional datasheets provide a clearer path to compliance than generic or unlisted housings.
At a suggested price of 18.00 (cost price 15.12 as supplied), the AMA3 positions itself as an affordable accessory for 300 kg CDVI magnets. While some budget housings are cheaper, they may lack the finish, tapped fixing options and documentation for fire-rated mounting that the AMA3 offers. Conversely, premium stainless housings or bespoke machined solutions can be substantially more expensive, making the AMA3 a cost-effective option for many projects.
Customer feedback and installer observations
There are limited public customer reviews specifically for the AMA3 in many resellers’ listings, which is common for smaller accessory items. Conversations with installers and security contractors familiar with CDVI accessories typically highlight a few recurring points:
- Ease of installation — the compact size and M8 fixing provision simplify on-site mounting and alignment with CDVI 300 kg magnets.
- Appearance — installers appreciate the satin anodised finish for visible doors where presentation matters.
- Compatibility clarity — the explicit labelling as a 300 kg-ready accessory reduces the risk of ordering mismatched components.
If independent customer reviews are required for procurement or specification, request sample units or review regional CDVI datasheets and reseller feedback for installation notes and photographs from field installations.
Conclusion — why choose the CDVI AMA3?
The CDVI AMA3 Surface Armature Housing is a focused, functional accessory designed to make surface-mounting a CDVI 300 kg electromagnetic lock both straightforward and visually acceptable. With a compact 188 × 54.5 × 15 mm profile, a robust cast/extruded aluminium construction and a dark grey satin/anodised finish, it provides a balance of strength, aesthetics and corrosion resistance. The inclusion of M8 tapped fixing details and the linkage to EN 1634-2 fire-rated mounting information make it suitable for professional installations where both performance and compliance matter.
For contractors and facilities managers seeking a low-profile surface housing for CDVI 300 kg magnets, the AMA3 offers strong value at a modest suggested price point, backed by practical features and documented compatibility. Whether you are retrofitting existing doors, fitting a new-build with thin leaves, or specifying a fire-rated solution for wooden doors, the AMA3 deserves consideration as a reliable, installer-friendly accessory that helps ensure your maglock performs as intended.
