Container cable seals are used to secure shipping containers, trailers, rail freight, tank containers, and bonded cargo during transportation and storage. Their primary purpose is to provide visible evidence of unauthorized access and support cargo integrity throughout the supply chain.

Our high security cable seals are designed for distributors, freight operators, logistics providers, and security seal wholesalers that require reliable serialization, consistent product performance, and compliance with international transport requirements.
Unlike a lock, a cable seal is not intended to physically stop determined theft attempts. Its primary purpose is to make any opening, cutting, or replacement attempt immediately detectable during inspection.

Technical Specifications

Specification	Details
Seal Classification	High Security Cable Seal
Certification	ISO 17712:2013 High Security ("H") for 5.0 mm model
Cable Diameter	5.0 mm / 3.5 mm
Cable Material	Non-preformed galvanized steel cable
Lock Body Material	Zinc alloy
Marking Method	Fiber laser engraving
Custom Options	Logo, serial number, barcode, QR code
Operating Temperature	-40°C to +110°C
Removal Method	Cable cutter or bolt cutter
Usage	Single use

Key Advantages

01/

ISO 17712 Certified for International Container Movements
The 5.0 mm version is tested and certified to ISO 17712:2013 High Security requirements, a specification commonly required for international container shipments and customs-controlled cargo movements.
Testing includes:
Tensile performance
Impact resistance
Bending resistance
Shear resistance
The 3.5 mm version is typically selected for domestic transport, trailer security, and applications where ISO 17712 certification is not required.

02/

Non-Preformed Cable for Visible Tamper Evidence
The cable is manufactured from non-preformed galvanized steel strands.
When cut, the individual strands separate and fray rather than remaining in a compact bundle. This makes attempts to restore the original appearance of the cable visible during inspection.

03/

One-Way Locking Mechanism
The internal locking components allow movement in one direction only.
Once the cable is inserted and tightened, reverse movement is blocked by the locking mechanism inside the seal body. Removal requires cutting the cable or damaging the lock body.
This design supports single-use operation and provides visible evidence if the seal has been opened.

04/

Permanent Laser Identification
Each seal is marked using fiber laser engraving rather than surface printing.
Because the marking is engraved directly into the metal surface, identification remains readable after exposure to moisture, abrasion, and routine handling during transport.
Available marking options include:
Sequential numbering
Company logo
Barcode
QR code

Materials Selected for Transport Environments

Container seals are routinely exposed to rain, humidity, vibration, temperature variation, and outdoor storage conditions. To improve durability during transport, the seals use:

Galvanized steel cable for corrosion resistance
Zinc alloy lock bodies for dimensional stability
Laser engraving for permanent identification
The seals are suitable for operating temperatures between -40°C and +110°C.

OEM and Wholesale Support

Available services include:

Customer logo engraving

Barcode and QR code generation

Private label packaging

Sequential packaging by number range

Reserved numbering allocation for repeat orders

Sequential packaging can simplify warehouse issuance procedures and inventory control for distributors and logistics operators.

Typical Applications

Shipping containers
Truck trailers
Rail wagons
Tank containers

Bonded warehouses
Distribution centers
Intermodal transport
High-value cargo shipments

Certificate

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FAQ

Q: What is the difference between 3.5 mm and 5.0 mm cable seals?

A: The 5.0 mm version is certified to ISO 17712:2013 High Security requirements and is commonly used for international container transport.
The 3.5 mm version is generally used for domestic transport and applications where ISO 17712 certification is not required.

Q: How is serial number duplication prevented?

A: Number ranges are managed through production records and archived allocation data to reduce the possibility of duplicate serial numbers across repeat orders.

Q: Can logos and barcodes be customized?

A: Yes. Logos, serial numbers, barcodes, and QR codes can all be laser engraved according to customer requirements.

Q: What tools are required for removal?

A: Removal requires cable cutters or bolt cutters. The seals are not designed to be removed by hand.

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