Description
CMI Class A Strongroom Door & Frame G-CRD4A – Elite Government-Grade Protection for High-Security Installations
Key Features:
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5-Year Warranty on door & frame, 2-Year Warranty on locks
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SCEC Class A Approved – Certified by the Australian Government’s Security Construction and Equipment Committee
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Dual KABA X10 High-Security Digital Dial Locks – Battery-free, military-grade reliability
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Tested Resistance against oxy-acetylene, explosives, drills, grinders, hydraulic and pneumatic tools
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180mm total door thickness with 55mm laminated alloy & refractory core
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Glass relocking deadlocks activate on tamper detection
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Emergency internal release built in as standard
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Clear Opening: 1980mm (H) x 860mm (W)
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Masonry Opening: 2060mm (H) x 1030mm (W)
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Optional left or right door swing configuration
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Timber crate packing available for $523 including GST
Uncompromising Vault Security for Critical Infrastructure
The CMI Class A Strongroom Door & Frame G-CRD4A is one of the most advanced physical security solutions available in Australia. Built to meet the most demanding security standards, it is officially certified Class A by the SCEC (Security Construction and Equipment Committee), making it suitable for installation in government, defense, and commercial facilities where asset protection is critical.
CMI has long been regarded as a leader in the design and manufacturing of high-security doors and vault systems. The G-CRD4A continues that tradition, delivering a strongroom door that offers maximum resistance to physical, mechanical, and thermal attack methods.
Why the G-CRD4A is the Preferred Choice for Government & High-Security Sites
1. Government-Certified Class A Security
Not all strongroom doors are built to meet Class A standards, but the G-CRD4A is. The SCEC certification ensures that this door has passed rigorous testing procedures and is approved for top-tier use in Australian Government and defense settings. This certification guarantees that the door is capable of withstanding targeted attacks from a wide range of tools and threats.
2. Dual KABA X10 Digital Dial Locks – Military-Grade Access Control
Security begins at the point of access. The G-CRD4A is equipped with two KABA X10 locks, among the most secure dial lock systems in the world. These battery-free, high-security locks are approved for Classified & Top Secret government use, and they eliminate common vulnerabilities associated with standard electronic locks.
Built to resist manipulation, these locks function reliably over long periods, offering consistent performance with minimal maintenance. They also feature an internal tamper-resistant mechanism, ensuring unauthorized access is virtually impossible.
3. Engineered to Resist All Forms of Physical Breach
The G-CRD4A is built with an imposing 180mm thick door, reinforced by a 55mm slab of laminated alloy and refractory materials in the center. This core construction is specially designed to withstand:
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Oxy-acetylene torch attacks
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Drilling and abrasive cutting tools
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Hydraulic jacks and rams
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Explosive entry methods
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Pneumatic hammers and grinders
This layered defense mechanism ensures that the safe provides maximum delay and deterrence, allowing response teams time to intervene during attempted breaches.
4. Internal Emergency Release – Safety Comes Standard
Beyond security, safety of personnel is also a priority. The G-CRD4A includes an internal emergency release mechanism, allowing anyone locked inside the room to exit safely. This feature is particularly important in applications such as vault rooms, archive facilities, or secure labs, where accidental lock-ins or emergency evacuations must be considered.
5. Anti-Tamper Glass Relocking Devices
As an added safeguard, the door includes glass-activated deadlocking relockers. If a forced entry attempt is detected—such as tampering with the lock or door—these devices instantly engage an additional locking system, making further penetration almost impossible without extensive time and tools.
6. Flexible Installation with Custom Swing Options
The G-CRD4A offers standard clear opening dimensions of 1980mm (height) by 860mm (width), with a masonry requirement of 2060mm x 1030mm. Depending on the project layout, you can specify left-hand or right-hand door swing when ordering. This allows for seamless integration into existing architectural and operational workflows.
Additionally, CMI offers the option to package the strongroom door in a timber crate for added protection during transit or storage. This packaging option is available at an additional cost of $523 including GST.