How a Machinery Manufacturer Ensured Compliance and Reliability with UL Certified Cables

Customer Background

A mid-sized industrial machinery manufacturer based in the Midwest United States produces automated assembly lines for automotive parts. With 300 employees and annual revenue of $45 million, the company supplies equipment to tier-1 automotive suppliers. Their machines require extensive internal wiring for power, control, and communication circuits.

Challenges and Pain Points

The manufacturer faced persistent issues with cable failures inside their machines. After installation, customers reported insulation breakdown, short circuits, and wire breaks within 12–18 months of operation. The average cost of each field service call was $2,500, and warranty claims had reached 8% of revenue., a key customer in the automotive sector demanded that all components comply with UL 758 standards. The manufacturer's existing non-UL cables failed inspection, risking a contract worth $3 million annually.

Why Choose UL Cable from Singi

The engineering team assessed three suppliers of approved wiring materials. They tested samples for flame resistance, volt-level rating, and mechanical durability. Singi-cable's UL 1015 (rated 105°C, 600V) and UL 1007 (80°C, 300V) wires met all requirements. The cables passed the UL horizontal flame test and offered consistent insulation thickness. The procurement manager noted, "Singi provided complete UL certification documentation and a traceability system, which our previous supplier could not match." The cost per foot was 12% lower than the nearest compliant competitor.

Implementation Process

The project took eight weeks. Step one: the engineering team reviewed all wire gauges and lengths for each machine model. Step two: they ordered three months of stock from Singi to cover production and field retrofits. Step three: assembly technicians received training on proper stripping and crimping for the new cables—critical because the PVC insulation required adjusted tool settings. Step four: the first two machines were built and tested internally for 500 hours. A typical challenge was adapting to the slightly stiffer jacket of the UL cable; operators reported fatigue. The solution was to pre-cut and pre-strip wires using a semi-automated feeder. After the adjustment period, production speed returned to normal.

Results and Quantifiable Outcomes

• Field failure rate reduced by 62% within 12 months of implementing UL cables across all new machines.
• Warranty costs dropped from $320,000 to $140,000 per year, a 56% decrease.
• The customer passed a third-party UL field inspection with zero non-conformances, securing the $3 million contract renewal.
• Average machine downtime attributed to wiring issues fell from 4.2 hours to 1.6 hours per incident.

Overall, the manufacturer estimates a first-year return on investment of 340% after accounting for cable cost, training, and tooling changes.

Client Voice

"Switching to UL certified cables from Singi solved our compliance headache and cut our maintenance costs. The documented test reports gave our customers confidence in our equipment," said the company's lead electrical engineer.

Lessons and Recommendations

For other equipment manufacturers: (1) Never assume uncertified cables are equivalent; test for actual application conditions. (2) Insist on full UL traceability from your cable supplier—a simple letter of compliance is not enough. (3) Plan for a short learning curve when changing cable types; invest in proper tooling from the start. If we were to do this again, we would have phased in the change more aggressively to capture warranty savings earlier.

References:

• UL 758:2014 Appliance Wiring Material (AWM) – Sets performance requirements for single-insulated conductors, multi-conductor cables, and optical fiber cables used in appliances. Singi-cable UL1015, UL1007, UL1569, and UL2464 series are designed to meet this standard.