Description
LOX AMLB4 Adjustable L-Bracket – EM3500 Series Maglock Mounting for Outward-Opening & Narrow Frame Doors
Overview
The LOX AMLB4 is a heavy-duty adjustable L-bracket engineered for mounting the LOX EM3500 series electromagnetic locks on outward-opening doors and narrow door frames where a direct surface mount isn’t possible. Compatible with the EM3500 (Single), EM3500M (Monitored), EM3500D (Double), and EM3500DM (Double Monitored), the AMLB4’s horizontal sliding adjustment ensures precise armature alignment — critical for achieving the full 280kg holding force of your maglock. A practical, professional solution for security installers and integrators across Australia.
Description
When a door frame header is too narrow to mount a maglock directly, or when the door swings outward, the AMLB4 is the correct solution. Its sliding track design extends the mounting surface beyond the frame edge, positioning the lock body so the armature plate on the door leaf seats flush against the magnet — maintaining full holding force and preventing premature lock wear.
Constructed from high-strength aluminium alloy with a satin anodised finish, the AMLB4 is lightweight, corrosion resistant, and blends cleanly with modern commercial door hardware. Pre-drilled fixing holes reduce installation time, and fire-rated compatibility ensures your door assembly maintains its safety certification. Whether you’re fitting a single or double maglock on a narrow aluminium frame, the AMLB4 is the go-to bracket for LOX EM3500 series installations across Australia.
Key Features
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Compatible with Full EM3500 Series: Suits LOX EM3500, EM3500M, EM3500D, and EM3500DM electromagnetic locks — single and double configurations.
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Horizontal Sliding Adjustment: Sliding track design allows fine-tuning of lock position on narrow or non-standard door headers for perfect armature alignment.
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Outward-Opening Door Solution: Correct bracket type for doors that swing away from the secured area, where a direct frame mount is not possible.
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Satin Anodised Aluminium Finish: Corrosion resistant and aesthetically suited to modern commercial interiors and aluminium door frames.
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Pre-Drilled Fixing Holes: Precision-machined mounting holes reduce installation time and labour costs on site.
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Fire-Rated Compatibility: Maintains the fire integrity of your door assembly when used with LOX EM3500 series locks.
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High-Strength Aluminium Alloy: Lightweight yet rigid — resists flex under load in high-frequency commercial environments.
Use Cases
- Outward-opening commercial office entry and exit doors
- Narrow aluminium door frames where direct maglock mounting is not possible
- Retail shopfronts and back-of-house outward-swing doors
- School and university secure access doors with narrow headers
- Healthcare facility entry points with outward-opening fire doors
- Strata and apartment building common area doors
- Industrial facilities with non-standard door frame profiles
Technical Specifications
| Specification |
Detail |
| Model |
AMLB4 |
| Bracket Type |
Adjustable L-Bracket |
| Compatible Locks |
LOX EM3500, EM3500M, EM3500D, EM3500DM |
| Material |
High-Strength Aluminium Alloy |
| Finish |
Satin Anodised Aluminium (Silver) |
| Adjustment Type |
Horizontal Sliding Adjustment |
| Application |
Outward-Opening Doors & Narrow Frames |
| Fire-Rated Compatibility |
Yes – maintains LOX EM3500 series fire rating |
| Brand |
LOX |
Recommended Accessories & Compatible Products
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LOX EM3500 – Single non-monitored electromagnetic lock (280kg); primary compatible lock for this bracket.
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LOX EM3500M – Single monitored electromagnetic lock with Hall Effect LSS for access control integration.
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LOX EM3500DM – Double monitored electromagnetic lock (560kg combined); use two AMLB4 brackets or the dedicated double bracket for wide frames.
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LOX AMZB4-LP L & Z Bracket – Required instead of the AMLB4 when the door opens inward (swing-in); provides the Z-offset geometry for inward-opening doors.
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Access Control Power Supply (12VDC / 24VDC) – Regulated power supply with battery backup for reliable maglock operation.
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Exit Button / Request-to-Exit (RTE) – Surface-mount egress button for compliant door release on maglock installations.
Frequently Asked Questions
When do I need the AMLB4 instead of a direct surface mount?
The AMLB4 is required when the door frame header is too narrow to mount the maglock body directly, or when the door opens outward. Its sliding adjustment extends the mounting surface beyond the frame edge, ensuring the lock and armature plate align correctly for full holding force.
What is the difference between the AMLB4 and the AMZB4-LP L & Z Bracket?
The AMLB4 (L-bracket) is for outward-opening doors. The AMZB4-LP (L & Z bracket) is for inward-opening doors — the Z-plate provides the additional offset needed when the door swings into the secured area. Using the wrong bracket type will result in misalignment and reduced holding force.
Does the AMLB4 work with double door maglocks?
Yes. For a double door setup using the EM3500D or EM3500DM, you would typically use two AMLB4 brackets — one per lock body — or the dedicated double bracket depending on your frame width and configuration. Contact us if you need help selecting the right hardware for your project.
Is the AMLB4 fire rated?
Yes. The AMLB4 maintains the fire integrity of the LOX EM3500 series lock system when used as part of a fire-rated door assembly, in compliance with Australian building and safety standards.
Do you ship Australia-wide?
Yes. We ship to all states and territories including NSW, VIC, QLD, WA, SA, TAS, ACT, and NT. Contact us for bulk order pricing and project quotes.
