The Principle And Safety Of Metal Truck Sealing Strips

A security seal with a die-cast aluminum lock body and a pull-tight steel wire locks a truck door or container hatch and shows visible evidence if the wire is cut. The locking sequence covers inspecting the lock body, threading the wire through the hasp, and pulling the wire tight until the mechanism grips. Record the printed number before departure. Cable diameter is 1.5 mm or 2.5 mm, with color options in red, yellow, blue, green, orange, and white.

Why One-Piece Locking Stops Tampering

A padlock opens with a key and closes again without a trace. A metal security seal has no key, no combination, and no latch that reopens. Once the wire pulls tight, the only release is to cut the cable, which destroys the seal.

Evidence at the Lock Body

• ✂️ Cut wire leaves two loose ends at the lock body

• 🔢 Printed sequential number breaks the numbering sequence

• 🎨 Color change reveals a substituted seal

• 📦 Deformed lock body shows force at the entry port

Lock Body and Cable Construction

The lock body is die-cast aluminum, which resists corrosion in outdoor and marine transport. The steel wire carries a printed logo, sequential number, or bar code. A pull-tight mechanism grips the wire at any position, so the seal tightens against the door hasp without a preset length.

The 3 kN breaking strength holds under normal handling and rough road conditions. The -40°C to 110°C range covers refrigerated trailers and hot cargo bays in the same product.

Applications Across Logistics

Metal truck seals fit intermodal containers, railroad cars, air cargo containers, tankers, wagons, doors, and hatches. The same seal works on an ISO container corner casting and a tanker valve handle. A fleet can standardize on one seal type across mixed transport modes.

•  Truck doors and trailer hasps

•  Railroad cars and intermodal containers

•  Air cargo containers

•  Tanker hatches and wagon doors

Compliance and Number Tracking

1. Confirm the seal meets ISO/PAS 17712 for high-security classification.

2. Verify C-TPAT compliance for cross-border freight.

3. Check the printed number against the shipping manifest.

4. Confirm the wire diameter matches the hasp opening.

5. Log the seal number against the container and driver record.

A tamper seals program that records every number at loading and delivery turns a physical device into a traceable chain of custody. When a container arrives with a cut wire or a number mismatch, the log identifies where the break occurred.

Common Faults and Corrective Actions

1. Wire pulls loose under load: confirm breaking strength and hasp condition.

2. Number illegible at delivery: check print quality and surface wear.

3. Lock body corrodes in marine service: verify aluminum grade and coating.

4. Seal too short for the hasp: select a longer cable length.

5. Reused seal detected: confirm the one-way locking mechanism, not a recloseable latch.

A metal truck seal with a die-cast body and a pull-tight wire gives logistics operators a one-way lock that shows any interference. Safety seals in this class hold their marking and strength across temperature swings, and truck seals with sequential numbering tie each container to a documented chain of custody.

Metal Truck Seals

Xinghui seal manufacturer provides printing, design and production of Metal Seals service for global suppliers and companies. This product is one of our past work.

Packaging & Shipping

1. Standard Packing: 100pcs/bag 20bags/carton
2. Caton Specification: 37cm X 31.5cm X 24cm
3. Weight per carton:31KG
4. The packing can according to your requirement.

Our Services

1. 24 hours / day phone services
2. 12 hours / day mail services (your mail should be replied on next 12 hours)
3. OEM service: If you have your own model, Which want to do the same. We also can do for you.
4. Free sample

FAQ

1. Payment: Paypal, Western union,30% T/T advance , the balance before shipment.
2. We can do all product photo for you, before shipment.
3. Welcome the QC check the product before shipment
4. The other specific issues can negotiate.
5. Pls confirm the details with us before do the prepayment.

Company Information

YongJia XingHui Seal Co., Ltd. is located in Wenzhou and has been one of the leading professional suppliers of security seals in China since 2007.We specialize in Cable seal, Meter seal, Container seal, Plastic seal, Padlock seal and Seal lock ect. Our products have passed ISO9001 international quality management system.

Our company carries out strict quality control and establishes an advanced management system. Our plastic seals are secure because they cannot be unlocked once sealed. Our security seals are widely applied in supermarkets, shipping, petroleum transport, commodity inspection, logistics, instruments, boxes, power supplies, water supplies, war industry, concrete, post customs, railway finance, cargo cars, containers, air transport, packing barrels, larceny prevention, confidence breach, etc.

We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

Our company takes customer first attitude to each customer,If you have some problem, Welcome to contact us

We can answer your question within 24 hours