Single wire seals are specialized security devices designed to protect cargo, containers, and valuable assets from tampering and unauthorized access during transit and storage. They function as a single-use, disposable locking mechanism, providing a visible and immediate indication of any interference. As a critical component in the global supply chain, these seals are indispensable for logistics companies, shipping operators, and manufacturers who require a high level of security and accountability. Our factory at Guoming Rubber has extensive experience in producing reliable and certified single wire seals that meet international standards.
A typical single wire seal consists of two primary components: a high-tensile strength steel wire and a locking body. The wire is looped through the hasp of a container door or other asset and then inserted into the locking body. Once engaged, the locking mechanism inside the body grips the wire permanently. Any attempt to pull the wire out will be unsuccessful, and forced entry will typically break the seal or leave obvious evidence of tampering. This simple yet effective design is what makes the single wire seal a trusted tool worldwide.
At Guoming Rubber, we engineer our single wire seals to perform under the most demanding conditions. The quality of the materials and the precision of the locking mechanism are paramount to their effectiveness.
For a clear and professional overview, please refer to the table below which summarizes our standard product specifications.
| Parameter | Specification |
| Primary Material | High-Carbon Steel |
| Tensile Strength | > 4,500 N (1,000 lbf) |
| Temperature Range | -50°C to 120°C |
| Standard Length | 400mm, 500mm, 600mm (Custom lengths available) |
| Surface Finish | Galvanized or Anti-Corrosion Coating |
| Compliance | ISO 17712:2013 High Security |
Our commitment to quality control is unwavering. Every batch of our single wire seals undergoes rigorous testing in our factory to ensure consistent performance and reliability. We invest in advanced manufacturing technology to maintain the highest standards in the industry.
The primary application of single wire seals is in the maritime shipping industry for sealing intermodal container doors. However, their use extends far beyond that. They are widely used to secure truck trailers, railcars, airline duty-free carts, storage cages, vaults, and utility meters. Any scenario where evidence of tampering needs to be clear and immediate is a suitable application for a single wire seal. The durability of our products makes them a preferred choice for harsh environments.
Q1: What does ISO 17712 certification mean for a single wire seal?
ISO 17712 is an international standard that sets benchmarks for the classification, acceptance, and withdrawal of mechanical seals. For a single wire seal to be certified as high-security under this standard, it must pass rigorous tests for strength, toughness, and tamper resistance. Our seals at Guoming Rubber are manufactured to meet these stringent requirements, ensuring they provide a reliable level of security that is recognized and accepted by customs authorities and security agencies worldwide.
Q2: How can I verify if a single wire seal has been tampered with?
Verification is a straightforward process. First, inspect the locking body for any physical damage, such as drill marks, cracks, or scratches. Second, check that the unique identification number on the seal matches the number recorded on the shipping manifest. Finally, ensure the wire is securely locked and cannot be pulled from the body. Any sign of damage, mismatch, or looseness indicates potential tampering. Our seals are designed to break destructively, leaving no doubt that a breach has occurred.
Q3: Are single wire seals reusable?
No, single wire seals are designed for one-time use. They are destructively removed using bolt cutters or angle grinders once the cargo reaches its destination. The integrity of the seal is compromised upon removal, making it impossible to reuse without evident tampering. This single-use characteristic is fundamental to their purpose, as it guarantees that the seal cannot be removed and reattached without authorization.
Choosing Guoming Rubber for your security seal needs means investing in peace of mind. Our decades of experience in rubber and security product manufacturing have given us unparalleled expertise. We control the entire production process within our factory, from raw material selection to final packaging. This allows us to guarantee the quality and consistency of every single wire seal that bears our name. Our customers trust us to deliver products that protect their assets and uphold their security protocols. For more information on our product range or to discuss your specific requirements, please contact us at Zhejiang Guoming Rubber Technology Co., Ltd. Our team is ready to provide you with expert guidance and support.
