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Case Study: Protecting Trailer Doors and Preventing Seal Tampering


The Challenge

A major food shipper struggled with ongoing seal tampering on its trailers. Standard portable locks weren’t enough:

• Multiple shipments were rejected, leading to financial losses

• Delivery timelines were frequently disrupted, causing customer dissatisfaction

• Insurance claims and disputes over seal tampering piled up, creating extra administrative work


The Goal

Find a dependable, permanent solution to secure trailer doors and fully protect seals from tampering.

The Solution

After researching different security measures, the company chose the ENFORCER® Seal Guard Lock 5950 paired with ABLOY® 342 padlocks for their entire fleet. This combination delivered:

Permanent Seal Protection:

• Seal Guard Lock 5950 is installed permanently on trailer door

• Encloses all types of seals (plastic, bolt, metal, cable) to prevent tampering

• Built to withstand harsh conditions

High-Security Padlocks:

• ABLOY 342 padlocks have a shrouded shackle that resists cutting and picking

• Weather-resistant design suitable for outdoor transport

• Reliable key control system ensures only authorized access


The Results


90% decrease in tampering:

Fewer unauthorized access attempts and broken seals

Reduced Rejected Loads:

Shipments were accepted more consistently, slashing financial losses

Lower Insurance Claims:

Fewer disputes around seals eased the administrative burden

Improved Customer Trust:

On-time deliveries without tampering boosted relationships

By securing their trailers with the Seal Guard Lock 5950 and ABLOY 342 padlocks, the food shipper not only stopped seal tampering but also reduced costs and reinforced customer confidence.