CBT-25 razor wire is a concertina-style barbed tape security product designed to create a difficult-to-cross perimeter barrier. In many commercial specifications, “CBT-25” refers to a razor tape configuration using blades with an approximately 25 mm cutting length, although the exact blade profile, core wire diameter, coil diameter, and packing length can vary by manufacturer. I recommend treating CBT-25 as a product designation rather than a complete specification and confirming every dimension on the supplier’s technical drawing before ordering.
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For purchasing, the most important factors are material, corrosion protection, blade geometry, coil diameter, deployed length, installation method, packaging, and local safety requirements. Wanquan can help buyers compare these parameters for fencing, wall-top protection, correctional facilities, restricted sites, warehouses, and other controlled-access applications. Where a project has elevated security or environmental requirements, we advise buyers to review samples, drawings, and applicable standards before approving bulk production.
CBT-25 razor wire is manufactured from a high-tensile steel core wire wrapped or reinforced with a sharp steel blade strip. The finished tape is usually formed into coils, and the coils may be installed along fences, walls, gates, roof edges, or other perimeter structures. Its purpose is to deter climbing, cutting, and unauthorized passage by adding a highly visible physical obstacle.
The “CBT” designation is commonly associated with concertina barbed tape, while “25” often indicates a blade size or product family. However, naming conventions are not fully uniform across international suppliers. For this reason, I recommend verifying whether the 25 refers to blade length, a model number, or another dimensional classification in the supplier’s quotation.
Razor wire should not be treated as a substitute for a complete security design. The final level of protection also depends on fence height, post spacing, anchoring, lighting, surveillance, access control, and site procedures. The U.S. Department of Defense publication UFC 4-022-03, Security Fences and Gates, provides a useful reference for considering fences and gates as part of a broader physical-security system rather than as isolated components.
CBT-25 specifications are not universal, so buyers should request a complete data sheet instead of relying only on the model name. The table below shows parameters commonly reviewed during procurement; the indicated values are examples of specification categories and should be confirmed against the supplier’s quotation, drawing, and sample.
| Specification | Common Purchasing Reference | What to Confirm |
|---|---|---|
| Blade designation | CBT-25 | Whether “25” means blade length, model series, or another dimension |
| Blade length | Approximately 25 mm in many commercial descriptions | Actual cutting-point length and blade profile drawing |
| Core wire diameter | Often specified in millimeters, such as 2.0 mm or 2.5 mm | Wire diameter, tensile-grade requirement, and dimensional tolerance |
| Blade strip thickness | Often specified below 1 mm | Measured thickness, steel grade, and edge consistency |
| Coil diameter | Common project sizes include approximately 450 mm to 1050 mm | Collapsed diameter, expanded diameter, and installation clearance |
| Concertina length | May be quoted as 7 m, 10 m, 12 m, or another deployed length | Whether the length is expanded length, packed length, or effective coverage |
| Finish | Electro-galvanized, hot-dip galvanized, or PVC-coated options | Coating type, coating mass or thickness, color, and corrosion requirements |
| Packaging | Coils may be compressed, strapped, palletized, or packed in cartons | Coil count per pallet, gross weight, dimensions, and export protection |
For example, a buyer may need 450 mm coils with a 10 m nominal deployed length, a 2.5 mm core wire, and a galvanized finish. Those figures are not automatically the standard for every CBT-25 product; they are procurement variables that should be written into the purchase order. ASTM F1910, Standard Specification for Long Barbed Tape Obstacles, is one relevant industry reference for evaluating long barbed tape obstacles, but buyers should confirm the current edition and applicability to their specific product and jurisdiction.
Galvanized carbon steel is widely considered when the project requires a balance between cost and corrosion resistance. Electro-galvanized products generally have a thinner zinc layer and may be selected for relatively mild environments or budget-sensitive applications. Hot-dip galvanized products are often considered for outdoor exposure, but the actual service life depends on coating quality, atmospheric conditions, salt exposure, water retention, and maintenance.
ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles, provides a recognized framework for hot-dip galvanized coating requirements. It does not mean that every CBT-25 product automatically complies with the standard, so the buyer should request a coating declaration or inspection record when compliance is required.
PVC-coated razor wire may be selected when a colored appearance or an additional protective layer is required. Green, black, and other colors may be available depending on the supplier and order quantity. The coating can affect the overall dimensions, appearance, flexibility, and inspection method, so buyers should confirm whether the quoted measurements apply before or after coating.
Stainless steel can be considered for highly corrosive environments, coastal locations, chemical exposure, or projects with demanding maintenance expectations. It normally has a higher material cost than ordinary galvanized steel. The buyer should specify the stainless-steel grade, blade and core material separately, because a stainless blade combined with a different core material may not provide the intended corrosion performance.
CBT-25 razor wire is commonly considered for sites where unauthorized climbing or crossing presents a meaningful security concern. Typical applications include industrial facilities, logistics yards, warehouses, utility compounds, agricultural boundaries, prisons, military-related sites, data-center perimeters, and restricted infrastructure. Suitability depends on local regulations, the site’s risk assessment, and whether the product can be installed safely.
Factories, distribution centers, and storage yards may install razor wire above chain-link or welded wire mesh fencing. The added barrier can help address vulnerable perimeter sections while preserving visibility for security cameras and patrol staff. Buyers should check whether the supporting fence and posts are strong enough to carry the coil’s weight and withstand wind loading.
Correctional, defense-related, and critical-infrastructure projects may require more than a standard razor wire coil. These projects can involve defined standoff distances, anti-climb geometry, tamper-resistant brackets, controlled access gates, warning signs, and documented installation procedures. The product should be evaluated by a qualified security designer rather than selected only by blade size or price.
Razor wire may be considered for selected remote boundaries where unauthorized entry, animal intrusion, or asset protection is a concern. It is not appropriate for every agricultural location because wildlife, livestock, children, and maintenance workers may face injury risks. In these areas, I recommend comparing razor wire with conventional barbed wire, welded mesh, or non-injurious perimeter solutions before making a final decision.
Begin by identifying what the perimeter must protect and what type of intrusion is anticipated. A warehouse may need a visible anti-climb layer, while a restricted facility may require a coordinated system involving fencing, gates, cameras, and access controls. The objective determines whether CBT-25 is suitable and how much material is required.
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Record the total fence length, wall length, number of corners, gate sections, changes in elevation, and access points. A project with 200 m of fence does not necessarily require only 200 m of razor wire because overlap, end fixing, corners, and multiple rows may increase the requirement. Ask the supplier to distinguish clearly between nominal coil length and actual installed coverage.
Smaller coils can be suitable where space is limited, while larger coils may provide a broader obstacle profile. Installation may involve one row, multiple rows, flat-loop arrangements, or stacked concertina coils, depending on the security design. The selected arrangement must account for bracket spacing, fence strength, working clearances, and safe access for installation and maintenance.
For a dry inland location, galvanized steel may provide a practical starting point. Coastal, humid, industrial, or chemically exposed areas may require a higher-grade coating or stainless-steel option after an environmental review. Do not compare finishes only by color; compare coating type, coating thickness or mass, steel grade, edge condition, and expected maintenance requirements.
Before purchase, review local restrictions on sharp security barriers, required warning signs, installation height, public access, and worker protection. The product should be installed by trained personnel using suitable gloves, eye protection, tools, and lifting methods. The buyer should also confirm whether the project owner requires inspection reports, material certificates, coating records, or third-party testing.
Price should be compared on a delivered and installed basis rather than by coil price alone. A low unit price may be offset by a shorter deployed length, heavier packaging, insufficient brackets, weak strapping, or a finish that does not match the site environment. For international procurement, also compare net weight, gross weight, pallet dimensions, container utilization, and replacement availability.
CBT-25 does not by itself define every performance or dimensional parameter. Different manufacturers may use similar names for products with different blade profiles, wire diameters, coil sizes, or finishes. Always request a drawing, product photograph, packing specification, and written quotation.
Razor wire requires suitable brackets, clips, tension wire, fixing wire, posts, and sometimes anti-climb arms. If the support system is weak or incorrectly spaced, the finished barrier may not remain stable. Ask for a complete bill of materials rather than purchasing coils without considering installation accessories.
Salt spray, high humidity, standing water, industrial pollutants, and contact with dissimilar metals can accelerate corrosion. A galvanized finish that is adequate for one site may not be appropriate for another. Where the environment is uncertain, request a coating recommendation based on location, maintenance access, and expected service conditions instead of accepting a generic finish description.
Razor tape has sharp edges and must be handled as a hazardous installation material. Delivery, unloading, storage, cutting, tensioning, and maintenance all require site procedures. The installation plan should keep unauthorized persons away from the work area and include appropriate personal protective equipment.
CBT-25 pricing depends on steel grade, blade and wire dimensions, coating, coil diameter, deployed length, order quantity, packaging, and shipping destination. There is no reliable universal price without these details. A supplier may also quote different prices for standard production and customized specifications.
Minimum order quantity may vary according to whether the buyer selects a standard product or requests a special blade profile, color, coil diameter, or packaging format. Lead time can also change with production load, raw-material availability, inspection requirements, and export documentation. To obtain a comparable quotation, provide the required quantity in coils and meters, the finish, the coil diameter, the delivery location, and the desired shipping date.
As a wire mesh manufacturer and supplier, Wanquan can support buyers by organizing CBT-25 requirements into a clear technical specification. We can discuss blade and core-wire dimensions, galvanized or coated finishes, coil sizes, packing requirements, and installation-related accessories based on the project information provided. When a standard CBT-25 configuration is not suitable, we can help compare alternative razor wire formats or related wire mesh perimeter systems.
For an accurate quotation, send us the fence or wall length, intended application, preferred coil diameter, required finish, estimated quantity, destination port or city, and any drawing or project standard. If you are still evaluating options, we can prepare a specification comparison so that you can review material, dimensions, packaging, and commercial terms before placing a purchase order. Final technical approval should remain with the project owner, security consultant, or qualified installer.
CBT-25 razor wire can be a practical perimeter-security component when its dimensions, material, finish, coil arrangement, and installation method are matched to the site requirement. The best buying decision is not based on the model name or lowest coil price; it is based on a verified technical drawing, complete material specification, realistic coverage calculation, appropriate corrosion protection, and a safe installation plan. Buyers should also confirm applicable regulations and project standards before approval.
For your next step, prepare the perimeter length, application, environment, preferred finish, coil diameter, quantity, and destination details. Send these requirements to Wanquan for a project-specific CBT-25 razor wire quotation and specification review. We can help you compare standard and customized options before you commit to bulk purchasing.
Reference: ASTM International, ASTM F1910, Standard Specification for Long Barbed Tape Obstacles; ISO, ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles; U.S. Department of Defense, UFC 4-022-03, Security Fences and Gates.
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