Description
CMI Strongroom Commercial Grade CD4
Key Features:
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Certified UL TRTL-30×60 (USA) and ABIS Grade 5 (EU)
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Commercial-grade EDF (Explosive, Drill & Force) resisting
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85mm thick security door with 10mm steel front plate
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Drill-resistant hardened plate over lock zones
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Glass relocking device for tamper protection
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Three-way 32mm high-grade steel bolt locking system
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Heavy-duty steel frame (6mm x 120mm) with threshold plate
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Adjustable heavy-duty hinges with ball bearing axis
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Rear-mounted fire pan with high fire-resistant compound
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Internal release mechanism as standard
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Locking options: Key, Dial, Digital, Dual Locking (optional)
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Digital locking standard; Time delay & duress locks optional
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Custom sizing available upon request
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Left or right swing option; timber crate packaging available
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5-year safe warranty, 2-year lock warranty
- Important: Allow 55mm projection for handle on depth measurement.
CMI Strongroom Commercial Grade CD4 – Ultimate Protection for High-Risk Environments
Engineered for maximum resistance against explosive, drill, and force attacks, the CMI Strongroom Commercial Grade CD4 is the elite strongroom solution for serious security demands.
The CMI Strongroom Commercial Grade CD4 is an advanced security solution designed to meet the needs of high-risk commercial facilities such as banks, vaults, government buildings, secure storage providers, and high-value retail environments. Certified under the world’s most stringent standards, including UL TRTL-30×60 (USA) and ABIS Grade 5 (EU), this strongroom door delivers unmatched protection against sophisticated attack methods including explosives, power drills, oxy-acetylene, and mechanical force.
Built with a robust 85mm thick door, the CD4 features a 10mm solid steel faceplate supported by drill-resistant hardened plates and glass-operated relocking devices — a system designed to detect tampering and immediately trigger internal lock-down mechanisms. Reinforced with three-way bolt locking, a heavy steel door frame, and fire resistance technology, this strongroom door stands as the highest line of defense between your assets and any threat.
It comes standard with a digital lock but also supports key, dial, or dual locking options for added redundancy and customization. With internal release as standard and optional features like time-delay or duress locking, the CMI Strongroom Commercial Grade CD4 can be tailored to your exact operational and compliance requirements.
Why Choose the CMI Strongroom Commercial Grade CD4?
1. Certified to the World’s Highest Security Standards
Security certifications don’t get more serious than this. The CMI Strongroom Commercial Grade CD4 is UL TRTL-30×60 certified in the USA, meaning it can resist torch, tool, and explosive attacks for a full 30 minutes on all six sides. Additionally, it meets ABIS Grade 5 compliance, Europe’s equivalent standard for commercial-grade protection. These certifications make this strongroom door a trusted choice for banks, high-end retailers, and national security agencies.
2. Industry-Leading Explosives, Drill & Force Resistance (EDF)
This door is engineered specifically for EDF resistance, providing resilience against attacks that involve high-impact force, thermal tools, or industrial drills. Reinforcements include a 10mm thick steel face, drill-resistant plate, and glass relocker technology that automatically seals the lock if tampering is detected — a feature that renders most burglary attempts futile.
3. Triple-Locking Bolt System for Impenetrable Defense
Security doesn’t stop at the surface. The CD4 employs 32mm diameter bolts made of high-grade steel, locking in three directions: side, top, and bottom. These bolts secure into specially reinforced lock bar chambers, ensuring structural integrity even under aggressive attack attempts.
4. Fire Resistance You Can Count On
Besides burglary protection, this strongroom door is also fire-resistant, featuring a rear-mounted fire pan filled with approved compound materials that maintain integrity during fire events. This dual protection makes it ideal for storing irreplaceable assets like documents, precious metals, or digital backups.
5. Advanced Locking Options with Flexibility
The door comes standard with digital locking, but can be upgraded to include key locks, mechanical dials, or dual locking systems. Additional options include time-delay functions for increased operational control, and duress locks for silent alerts during emergencies — all customizable based on your organization’s specific needs.
6. Built Tough from Frame to Hinge
The door frame is constructed from 6mm steel, 120mm wide, with a bottom threshold plate to prevent prying. Heavy-duty hinges with hardened pins and ball bearing support allow smooth operation while deterring forced entry, even during extended wear.
7. Internal Release for Emergency Egress
Safety comes first. That’s why the CD4 includes a built-in internal release mechanism, allowing occupants to exit from within the strongroom — an essential feature for compliance and peace of mind.
8. Customization and Easy Installation Support
Every environment is different, so CMI offers custom sizing and lets you specify left- or right-hand swing direction, as well as wall thickness during ordering. Timber crate packaging is available for protection during transit (optional cost applies). These thoughtful details make deployment smoother and faster for installers and end users alike.