ISM Super Diamond, TXTL-60x6 Rated, Level 10

ISM Super Platinum Series TRTL-60x6 safe in a two-tone black-and-white finish, showcasing a heavy-duty door and polished hardware for maximum security.

ISM Super Platinum Series TRTL-60x6 safe, door open, revealing adjustable interior shelving and reinforced multi-bolt construction for high-risk asset protection.

Actual products may vary slightly from images shown due to lighting conditions, screen settings, or minor manufacturing updates. When multiple options are available—such as size, color, hardware, or lock type—the images may not reflect every configuration. Please refer to the product description for available options. If you have questions about a specific product's appearance, contact our team before purchasing.

ISM - Super Diamond Series

$25,072.00

In Stock LocallyFast Delivery & Professional Installation Available

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Choose Your Size:

SPL262316: 36″×33″×30″ (H×W×D)

SPL352416: 45″×34″×30″

SPL552616: 65″×36″×30″

SPL652916: 75″×39″×30″

SPL673623: 77″×46″×37″

Selected None selected

Key Features

Protection Level Maximum Protection

Security Level 10

Fire Rating 120 min

Capacity Up to 0 guns

Weight 2,200 lbs

Made in USA No

Warranty Limited Life-Time

ISM - Super Diamond Series

SPL262316: 36″×33″×30″ (H×W×D)

Current Price $25,072.00

When the situation has moved past what a standard commercial safe is built to answer, the Super Diamond is where ISM goes next. The body is cast in one piece from Alchronite, ISM's torch and drill resistant composite, 3.4 inches thick through most of the structure and rising to 7.1 inches around the boltwork. The door runs 10 inches overall, with 6 inches of protective material including a 4.5 inch Alchronite layer, and copper bars set around the frame on all sides against torch attack. This sits at the top of ISM's range as a legacy flagship, and it is important to know that ISM designates this model itself rather than holding an independent listing for it.

Who This Safe Is Best For — and When to Consider More

Choose this model if:

Choose the Super Diamond if your risk is genuinely at the extreme end, if physical mass and construction depth are what you want to buy, and if you are comfortable that this model carries a manufacturer designation rather than an independent listing. It is the right call when you want an inner vault within the safe, when the contents justify a door 10 inches thick, and when your building can accept a unit starting above two and a half tons. It also fits buyers who value a time lock option on the primary door.

Best For:

Choose the Super Diamond if your risk profile is genuinely extreme, if construction mass matters more to you than an independent listing, and if your building can take a safe starting at 5,345 pounds. It fits situations where the value inside is large enough that the difference between sixty certified minutes and heavier uncertified construction is a conversation worth having. We see interest in it from buyers who want an inner vault compartment and a level of physical mass the certified models do not reach.

Not Ideal For:

The Super Diamond is not the right answer if your insurer, your schedule or your own judgment requires an independently listed rating, because this model does not carry one. It is also not the answer if fire protection is part of what you are buying, because this model carries no fire rating at all. And it will not work where the floor, the access route or the building structure cannot take 5,345 to 8,690 pounds.

What Makes the Super Diamond Different

A Group 1 manipulation proof combination lock works alongside a nine lever double-bit key lock, and a three movement time lock is available as an option on every size. Massive steel blocks encase the bolts, which slide out in three directions with fixed bolts on the hinge side, so the door is held on four edges rather than three. Behind the lock and the vital mechanism areas sits a glass plate that releases randomly located independent relockers when tampered with. Group 1 refers to the manipulation resistance class of the combination lock itself, which is the highest of the mechanical lock classes.

The body is a single Alchronite casting, 85 mm or 3.4 inches through most of its mass and rising to 180 mm or 7.1 inches at the boltwork protective area, with a dense layer of Insutex, ISM's insulation material, worked into the construction. This model has no fire rating, and no steel gauge is given. We will not supply either figure. What the published figures do tell you is that the resistance is in the casting and in its thickness, which is why the smallest Super Diamond weighs more than the largest safe in most commercial lines.

Three construction choices define this model. The body is cast as one piece rather than assembled, so there is no seam, joint or panel boundary anywhere in the structure. Copper bars run around the door frame on all sides, chosen because copper conducts heat away from the point of attack rather than concentrating it. Behind the lock area a tamper plate releases a number of randomly located relockers that operate independently of the locks, so an attacker who defeats the lock still faces bolts held by mechanisms whose positions are not predictable.

The interior is built for trays: adjustable and removable shelving configured for jewelry, cash and other valuables, plus an inner vault behind its own key lock for a second layer of separation within the safe. Published interior volume runs 8.59 to 18.65 cubic feet across four sizes. No shelf count is given for this model, so we will not state one. The inner vault is the feature that distinguishes this interior from everything else in the line, and it is worth planning what goes in it before delivery.

Four sizes run 49.6 to 77.2 inches tall and 35.4 to 41.1 inches wide at a constant 33.3 inch depth. Hinge allowances on this model differ from the rest of the line: add 0.87 inch to outside width and 3 inches to outside depth for hinges, and 3.55 inches to depth for a pull handle. Door swing projections reach 79.3 inches at 90 degrees on the largest size. The door alone accounts for 23 to 26 percent of total weight, which changes how the unit balances during the move.

Security Construction & Burglary Protection

Resistance in the Super Diamond comes from mass and material rather than from a tested rating. The body is one continuous Alchronite casting, so there is no seam for a tool to find, and it thickens to 7.1 inches exactly where the boltwork sits, which is the area an attacker works toward. The 10 inch door carries 6 inches of protective material including a 4.5 inch Alchronite layer, and the copper bars around the frame pull heat sideways rather than letting a torch concentrate it. Randomly located relockers behind the tamper plate mean defeating the lock does not release the bolts. We are direct with buyers here: ISM designates this model TXTL-60x6 itself, and that designation has not been independently verified, so this is a construction argument rather than a certification one.

Highlight

A one piece Alchronite casting thickening to 7.1 inches at the boltwork, a 10 inch door with copper bars around the frame, bolts sliding in three directions with fixed bolts on the hinge side, and randomly located relockers behind a tamper plate.

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Certified Fire Protection & What It Means

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Lock Type & Access Options

Two locks control the outer door: a Group 1 manipulation proof combination lock and a nine lever double-bit key lock, working together rather than as alternatives. A three movement time lock is available as an option on any size, which is worth considering if the safe sits in a business where a delay on opening is itself a deterrent. Inside, the inner vault has its own key lock, so you can separate the contents that need daily access from the contents that do not. Decide who holds which credential before installation, because changing that pattern later is more disruptive than setting it correctly at the start.

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Adjustable removable tray shelving, an inner vault behind its own key lock, and an optional three movement time lock on the primary door.

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Interior Storage, Shelving & Organization

The Super Diamond is designed around trays rather than boxes, with a 17.1 inch interior depth held constant across all four sizes and height doing all the varying. Shelving is adjustable and removable, and the inner vault behind its own key lock gives you a place for the items that should not be reachable every time the outer door opens. Published volume runs 8.59 to 18.65 cubic feet. No shelf count is given for this model, so plan the layout with us against your actual contents rather than against a number.

Installation, Placement & Bolting Down

Installation planning often determines long-term satisfaction. This model starts at 5,345 pounds and reaches 8,690, which puts it in the range where the structural question comes before the route question and sometimes before the purchase. We look at floor construction, doorway width, hallway turning radius, threshold heights and the exterior approach, and on a build this heavy we frequently place the safe before the room around it is finished. The door alone is roughly a quarter of the total weight, so balance during the move is planned as carefully as the path itself.

One of the simplest ways to increase resistance is proper anchoring.

Highlight

We install at this weight with our own crews and equipment built for it, and the structural planning starts long before the delivery date is set.

Two workers guide a shrink-wrapped safe on a skid steer beside a house on a dirt lot

Is This Protection Level Enough for Your Situation?

A One Piece Casting Built for Extreme Risk

Step Up If:There is nothing above this model in the ISM range, so the question at this level is not what comes next but whether the shape of the protection is right. Some situations are better answered by a purpose built vault room with a certified door than by a single container, particularly where the volume of what you are storing keeps growing. We consult on vault room construction across the Southeast, and that conversation is worth having before a container this size is ordered.

More Than Needed If:If an independent listing is part of what you want to buy, this is the wrong model regardless of how it is built, and the certified models in the same line will serve you better. If your risk is well covered by sixty certified minutes against torch and tool, you are already at a threat level almost nobody exceeds. And if the building will not take the weight without structural work, the honest answer is often a smaller certified safe rather than a larger uncertified one.

Section 1 - Series Specifications

ISM SD3723 - Large

Exterior Dimensions: 49.6H x 35.4W x 33.3D
Interior Dimensions: 37.4H x 23.2W x 17.1D
Weight: 5,345 LBS

ISM SD4723 - Large

Exterior Dimensions: 59.3H x 35.4W x 33.3D
Interior Dimensions: 47.0H x 23.2W x 17.1D
Weight: 6,160 LBS

ISM SD5723 - Large

Exterior Dimensions: 69.3H x 35.4W x 33.3D
Interior Dimensions: 57.1H x 23.2W x 17.1D
Weight: 7,130 LBS

ISM SD6529 - X-Large

Exterior Dimensions: 77.2H x 41.1W x 33.3D
Interior Dimensions: 65.0H x 29.0W x 17.1D
Weight: 8,690 LBS

Frequently Asked Questions

A vault differs from a safe in mass and construction: it is cast as one piece behind a door thicker than most interior walls. The Super Diamond sits on that boundary with a 10 inch door and a one piece Alchronite body. What we see is that weight, not footprint, marks the line.

ISM publishes no fire rating for the Super Diamond, so we do not state one. The construction includes a dense layer of Insutex insulation, but no duration, temperature or test result is published with it. If fire is part of what you need to solve, we will point you to a rated model.

Door thickness tells you how much protective material stands between a tool and the boltwork, which is where nearly every attack concentrates. The Super Diamond's 10 inch door holds 6 inches of protective material including a 4.5 inch Alchronite layer. What we find is that people underestimate how much of a door's depth is structure rather than barrier.

Floor structure is assessed first, then the route, and on a build this heavy we often set the safe before the surrounding room is finished. Crane placement, temporary wall openings and slab confirmation are all normal parts of the plan. The most common outcome we reach is placing it during construction rather than after.

An inner vault is a separately locked compartment inside the safe, so the items you reach for daily are not sitting alongside the items you almost never touch. It gives you a second barrier after the outer door is open. Where we see it earn its place is in businesses where more than one person opens the safe.

Ready to Secure What Matters Most?

Certified fire protection and UL-listed construction for balanced residential storage.

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Current Safe

ISM — Super Diamond

$25,072.00

Brand: ISM
Model: Super Diamond
Protection Level: Maximum Protection
Security Level: 10 / 10
Fire Rating
Lock Type
Locking Bars
Gun Capacity
Country of Origin: Import

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